Horizontal testing device

Abstract

The utility model provides a horizontal testing device which is used for carrying out horizontal calibration on a sensor in a sample to be tested, a horizontal calibration method can be simplified, and the calibration efficiency is improved. The horizontal testing device comprises a box body, equilibrium liquid, a floating platform, a first carrier and a second carrier. The equilibrium liquid is arranged in the containing groove of the box body. The first surface and the second surface of the floating platform are oppositely arranged in the height direction of the floating platform. The floating platform floats on the liquid level of equilibrium liquid, the second surface is in contact with the equilibrium liquid, and the first surface is opposite to the equilibrium liquid. The first carrier is fixed on the first surface, and the first mounting surface of the first carrier is parallel to the first surface. The second carrier is fixed to the first surface, and the included angle between the second mounting face and the first surface of the second carrier is larger than 0 degree and smaller than 180 degrees. The first mounting surface and the second mounting surface are both used for placing a sample to be tested. When the horizontal testing device is in a horizontal state, the equilibrium liquid is static, and the first surface is parallel to the liquid level of the equilibrium liquid.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of testing instruments of electronic devices, and particularly relates to a horizontal testing device. BACKGROUND

[0002] With the development of science and technology, electronic devices (such as mobile phones, tablet computers, etc.) have more and more functions. In existing electronic devices, acceleration and gravity sensors are generally used to realize functions such as automatic screen rotation, game control, and motion tracking. In order to improve the measurement accuracy of such sensors, horizontal testing and calibration are usually performed during the production process of electronic devices. However, the existing horizontal calibration and testing methods are relatively complex and inefficient. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a horizontal testing device that can simplify the horizontal calibration and testing method and improve the efficiency of horizontal calibration and testing.

[0004] The horizontal testing device includes a horizontal testing device for calibrating a sensor in a to-be-tested sample. The horizontal testing device includes a box, a balancing liquid, a floating platform, a first carrier and a second carrier. The box is provided with a receiving groove, and the balancing liquid is arranged in the receiving groove. The floating platform includes a first surface and a second surface, and the first surface and the second surface are arranged opposite along the height direction of the floating platform. The floating platform floats on the liquid surface of the balancing liquid, the second surface is in contact with the balancing liquid, and the first surface faces away from the balancing liquid. The first carrier includes a first mounting surface, the first carrier is fixed to the first surface, and the first mounting surface is arranged parallel to the first surface. The second carrier includes a second mounting surface, the second carrier is fixed to the first surface, and the angle between the second mounting surface and the first surface is greater than 0 degrees and less than 180 degrees. The first mounting surface and the second mounting surface are both used for placing the to-be-tested sample. The horizontal testing device has a horizontal state, when the horizontal testing device is in the horizontal state, the balancing liquid is static, the first surface is parallel to the liquid surface of the balancing liquid, the coordinate parameters of the sensor are obtained, and the sensor is calibrated horizontally.

[0005] It should be noted that the parallelism herein allows a small amount of deviation. When the horizontal testing device is in the horizontal state, the liquid surface of the balancing liquid is parallel to the horizontal plane, and the first surface and the first mounting surface are both parallel or approximately parallel to the horizontal plane.

[0006] When the horizontal testing device provided by the present embodiment is used to perform horizontal calibration and testing on the sample to be tested, the horizontal testing device is first placed in a horizontal state, and then the sample to be tested is placed on the first carrier, and the sample to be tested is arranged parallel to the first mounting surface, and then the coordinate parameters of the sensor in the sample to be tested are obtained, and the sample to be tested is horizontally calibrated. After the horizontal calibration is completed, the sensor in the sample to be tested is tested to obtain the coordinate parameters of the sensor in the sample to be tested when it is parallel to the horizontal plane. Next, the sample to be tested is placed on the second carrier, and the sample to be tested is arranged parallel to the second mounting surface, and then the sample to be tested is tested to obtain the coordinate parameters of the sensor in the sample to be tested when it is set at an angle to the horizontal plane. When the coordinate parameters of the sensor in the sample to be tested when it is set at an angle to the horizontal plane meet the requirements, the horizontal calibration passes, and the sample to be tested completes the horizontal calibration. When the coordinate parameters of the sample to be tested when it is set at an angle to the horizontal plane do not meet the requirements, the horizontal calibration fails, and it is necessary to re-calibrate the sensor in the sample to be tested.

[0007] The level testing device provided by the present application, by floating the floating platform on the surface of the balancing liquid, makes the balancing liquid stationary. When the balancing liquid is stationary, the level testing device can automatically be in a horizontal state due to the principle of water balance, and the first surface is parallel to the horizontal plane. There is no need for manual debugging, spot inspection, etc., which can save manpower and material resources and save costs. In addition, the level testing device provided by the present application has a simple structure and low production cost. Using the level testing device provided by the present application to perform level calibration and testing on the sample to be tested can simplify the calibration and testing methods and improve the efficiency of level calibration and testing of the sample to be tested.

[0008] Furthermore, in this embodiment, the horizontal testing device is automatically leveled using the principle of water balance, which reduces external environmental interference with the horizontal testing device and reduces the error in the angle between the first surface and the horizontal plane. This improves the accuracy of horizontal calibration and testing of the sample to be tested, thereby enhancing the competitiveness of the product. For example, in this embodiment, when the horizontal testing device is in a horizontal state, the horizontal angle is less than 1°, that is, the angle between the first surface and the horizontal plane is less than 1°.

[0009] Furthermore, the leveling test device provided by this embodiment is less susceptible to external forces. When placing or removing a sample to be tested, the leveling test device remains nearly horizontal, further improving test accuracy. Furthermore, even if the floating platform is subjected to significant pressure, the tension and balancing force of the balancing fluid allow the platform to quickly return to a horizontal state (in approximately one second). This further reduces the impact of external forces on the leveling of the leveling test device and improves test efficiency.

[0010] In a possible implementation manner, when the level testing device is in the horizontal state, the floating platform is spaced apart from the inner wall of the receiving tank.

[0011] It can be understood that when the balance liquid shakes in the box, the floating platform will shake with the balance liquid. When the balance liquid returns to the static state, the floating platform returns to the static state, and the horizontal testing device returns to the horizontal state. In the embodiment, by spacing the floating platform from the inner wall of the accommodation groove, interference between the floating platform and the box when the floating platform moves with the balance liquid can be avoided, so that when the balance liquid returns to the static state, the first surface can return to parallel to the horizontal plane, the horizontal testing device can return to the horizontal state, and the accuracy of the horizontal calibration and testing can be improved. In other words, in the embodiment, by spacing the floating platform from the inner wall of the accommodation groove, the inner wall of the accommodation groove can avoid clamping the floating platform, so that when the balance liquid returns to the static state, the horizontal testing device cannot return to the horizontal state.

[0012] In a possible implementation, the floating platform comprises a floating plate and a bearing plate. The density of the floating plate is less than the density of the balance liquid, the floating plate is at least partially located in the accommodation groove, and the floating plate floats on the liquid surface of the balance liquid. The bearing plate comprises the first surface, the bearing plate is arranged on the side of the floating plate away from the balance liquid and is stacked with the floating plate in the height direction of the floating platform, and the first surface is located on the side of the bearing plate away from the floating plate.

[0013] In the embodiment, by arranging the floating plate with a density less than the balance liquid on the floating platform, the density of the floating platform can be further reduced, and the floating platform can float on the surface of the balance liquid, so that when the horizontal testing device is in the horizontal state, the first surface can be parallel to the liquid surface of the balance liquid, that is, parallel to the horizontal plane.

[0014] In a possible implementation, the horizontal testing device further comprises a guide column, the guide column is fixedly connected with the box, and the axial direction of the guide column is parallel to the height direction of the horizontal testing device. The bearing plate is provided with a guide hole, the extension direction of the guide hole is parallel to the thickness direction of the bearing plate, the inner diameter of the guide hole is greater than the outer diameter of the guide column, the guide column is arranged in the guide hole, and the bearing plate can move relative to the guide column in the axial direction of the guide column and the radial direction of the guide column.

[0015] In the embodiment, by fixing the guide column on the box, arranging the guide hole on the bearing plate, and arranging the guide column in the guide hole, the movement of the floating platform can be limited and guided, and the amplitude of the shaking of the floating platform relative to the box can be reduced. At the same time, in the embodiment, by setting the outer diameter of the guide column to be less than the inner diameter of the guide hole, a gap is formed between the guide hole and the guide column, so that the bearing plate can move in the radial direction of the guide column, and the degree of freedom of the movement of the bearing plate relative to the box can be improved. When the balance liquid returns to the static state from the shaking, the first surface can return to parallel to the horizontal plane.

[0016] In a possible implementation, the two guide columns are arranged at opposite and spaced-apart diagonal positions of the box body, and the two guide holes are arranged at opposite and spaced-apart diagonal positions of the bearing plate, and one guide column is arranged in one guide hole.

[0017] In this embodiment, by arranging the two guide columns at the opposite diagonal positions of the box body, the limiting and guiding effects of the movement of the floating platform can be further improved, and the stability of the floating platform can be improved.

[0018] In a possible implementation, the difference between the inner diameter of the guide hole and the outer diameter of the guide column is less than the difference between the width of the accommodation groove and the width of the floating plate, and the difference between the inner diameter of the guide hole and the outer diameter of the guide column is less than the difference between the length of the accommodation groove and the length of the floating plate. When the horizontal testing device is in the horizontal state, the length direction of the floating plate is parallel to the length direction of the accommodation groove, and the width direction of the floating plate is parallel to the width direction of the accommodation groove. In this way, the interference between the floating plate and the box body when the floating plate moves with the balance liquid can be avoided, so that when the balance liquid returns to the static state, the floating platform can return to the static state, the first surface can return to be parallel to the horizontal plane, and the horizontal testing device can return to the horizontal state, thereby improving the accuracy of the horizontal calibration and testing of the to-be-tested sample by using the horizontal testing device.

[0019] In a possible implementation, the first carrier is in sliding connection with the bearing plate, and the first carrier can move relative to the bearing plate in a first direction. The first direction is parallel to the first surface.

[0020] In this embodiment, by sliding the first carrier relative to the bearing plate in the first direction, the position of the center of gravity of the floating platform in the first direction can be changed, so that the included angle between the first surface and the horizontal plane can be adjusted to make the first surface parallel to the horizontal plane, thereby improving the accuracy of the horizontal calibration and testing of the to-be-tested sample by using the horizontal testing device.

[0021] In a possible implementation, the horizontal testing device further includes an adjusting member in sliding connection with the bearing plate, and the adjusting member can move relative to the bearing plate in a second direction. The second direction is parallel to the first surface and perpendicular to the first direction.

[0022] In this embodiment, by sliding the adjusting member relative to the bearing plate in the second direction, the position of the center of gravity of the floating platform in the second direction can be changed, so that the included angle between the first surface and the horizontal plane can be adjusted to make the first surface parallel to the horizontal plane, thereby further improving the accuracy of the horizontal calibration and testing of the to-be-tested sample by using the horizontal testing device.

[0023] In a possible implementation, the bearing plate comprises a first side and a second side, the first side and the second side are opposite along the second direction. The distance from the center of gravity of the first carrier to the first side is greater than or equal to one third of the size of the bearing plate along the second direction, and less than or equal to two thirds of the size of the bearing plate along the second direction. The distance from the center of gravity of the second carrier to the first side is greater than or equal to one third of the size of the bearing plate along the second direction, and less than or equal to two thirds of the size of the bearing plate along the second direction.

[0024] In a possible implementation, the bearing plate comprises a third side and a fourth side, the third side and the fourth side are opposite along the first direction, and the third side and the fourth side are connected between the first side and the second side. The distance from the center of gravity of the first carrier to the third side is greater than or equal to one fourth of the size of the bearing plate along the first direction, and less than or equal to one half of the size of the bearing plate along the second direction. The second carrier is located between the first carrier and the fourth side, and the distance from the center of gravity of the second carrier to the fourth side is greater than or equal to one fourth of the size of the bearing plate along the first direction, and less than or equal to one half of the size of the bearing plate along the first direction.

[0025] In this embodiment, the first carrier and the second carrier are arranged in the middle region of the bearing plate, and when the sample under test is taken and placed, the force acting on the floating platform is perpendicular to the first surface, which can reduce or even avoid the shaking of the floating platform when the sample is taken and placed, so that the first surface can always be kept parallel to the horizontal plane, thereby further improving the accuracy of the horizontal calibration and testing.

[0026] In a possible implementation, the horizontal testing device further comprises a level, the level is arranged on the floating platform, and the level is arranged parallel to the first surface.

[0027] In this embodiment, by arranging the level on the bearing plate, whether the first surface is parallel to the horizontal plane can be determined by observing the coordinates of the level, which can facilitate the operation of the tester, improve the horizontal calibration and testing efficiency, and also improve the accuracy of the horizontal calibration and testing of the sample under test by using the horizontal testing device.

[0028] In a possible implementation, the horizontal testing device further comprises a mounting seat, the mounting seat comprises a third mounting surface, the mounting seat is fixed to the first surface, and the included angle between the third mounting surface and the first surface is greater than 0 degrees and less than 180 degrees; the second carrier is fixed to the third mounting surface, and the second mounting surface is parallel to the third mounting surface.

[0029] In the embodiment, the mounting seat with the third mounting surface is arranged on the bearing plate, and the second carrier is arranged on the mounting seat, so that the second carrier is arranged at an angle with the horizontal plane, and when the sample to be tested is arranged on the second carrier, the sample to be tested can be calibrated and tested, the structure of the horizontal testing device can be simplified, the horizontal calibration and testing method can be simplified, and the horizontal calibration and testing efficiency is improved.

[0030] In a possible implementation, the horizontal testing device further comprises three foot pads, each of the three foot pads is arranged outside the accommodating groove and fixedly connected to the bottom surface of the box, and the three foot pads are arranged in a triangular shape.

[0031] In the embodiment, the foot pads are arranged on the bottom of the box in a triangular shape, so that the stability of the horizontal testing device placed on the workbench surface is improved, the horizontal testing device is relatively stable on any workbench surface, no false position is caused, and the horizontal testing device is not shaken due to the movement of the position of the horizontal testing device, so that the stability of the horizontal testing when the horizontal testing device is used for horizontal testing is improved.

[0032] In summary, the horizontal testing device provided by the application can be automatically placed in a horizontal state by floating the floating platform on the surface of the balancing liquid, the first surface is parallel to the horizontal plane due to the principle of hydrostatic equilibrium when the balancing liquid is static, manual adjustment and inspection are not required, manpower and resources can be saved, and the cost is saved. Moreover, the horizontal testing device provided by the application has a simple structure and low manufacturing cost. The horizontal calibration and testing of the sample to be tested by using the horizontal testing device provided by the application can simplify the calibration and testing method, and improve the efficiency of the horizontal calibration and testing of the sample to be tested.

[0033] Moreover, in the application, the horizontal testing device is automatically placed in a horizontal state by the principle of hydrostatic equilibrium, the horizontal testing device can be less affected by the external environment, and the error between the first surface and the horizontal angle can be reduced, so that the accuracy of the horizontal calibration and testing of the sample to be tested can be improved, and the competitiveness of the product can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the application, the drawings required by the application will be described below.

[0035] Figure 1 is a structural schematic diagram of the horizontal testing device provided by the embodiment of the application;

[0036] Figure 2 is Figure 1 is a partial structural schematic diagram of the horizontal testing device shown in FIG. 1;

[0037] Figure 3 is Figure 1Partial exploded view of the horizontal testing device shown;

[0038] Figure 4 is Figure 3 Partial view of the horizontal testing device shown at another angle;

[0039] Figure 5 is Figure 4 Partial view of the horizontal testing device shown at another angle;

[0040] Figure 6 is Figure 4 Partial exploded view of the horizontal testing device shown;

[0041] Figure 7 is Figure 1 Partial view of the horizontal testing device shown at another angle;

[0042] Figure 8 is Figure 1 Partial view of the horizontal testing device shown during the process of horizontal calibration of the sample to be tested;

[0043] Figure 9 is Figure 1 Partial view of the horizontal testing device shown during the process of testing the sample to be tested. DETAILED DESCRIPTION

[0044] Electronic devices such as mobile phones, tablets, etc. usually use acceleration and gravity sensors to achieve functions such as screen automatic rotation, game control, motion tracking, etc. In order to improve the measurement accuracy of such sensors, horizontal testing and calibration are usually performed during the production process of electronic devices.

[0045] The commonly used horizontal testing and calibration methods in the industry include:

[0046] (1) Place the sample to be tested on a relatively horizontal table, calibrate the acceleration and gravity sensors in the sample to be tested, and record the calibration parameters;

[0047] (2) After calibration, place the sample to be tested on a table with an inclination angle of 45°, test the coordinate parameters of the acceleration and gravity sensors in the sample to be tested, and use them to determine whether the horizontal calibration meets the requirements.

[0048] When the coordinate parameters obtained in step (2) meet the requirements, it means that the horizontal calibration in step (1) meets the requirements, and the horizontal calibration process ends. When the coordinate parameters obtained in step (2) do not meet the requirements, it means that the horizontal calibration in step (1) does not meet the requirements, and step (1) needs to be repeated, that is, the horizontal calibration needs to be performed again, until the coordinate parameters obtained in step (2) meet the requirements, and the horizontal calibration process ends.

[0049] The existing horizontal test fixture usually has four footings at the bottom and a level on the device. When performing horizontal calibration, the horizontal test fixture is placed on the workbench, and then the footings are adjusted and the level is observed to make the level horizontal, so that the surface of the horizontal test fixture is parallel to the horizontal plane. It should be noted that the "parallel" here can be completely parallel or have a small error. For example, when the level is in the horizontal state, the angle between the surface of the horizontal test fixture and the horizontal plane is less than or equal to 5°.

[0050] The horizontal test fixture is used to calibrate the horizontal calibration of the test sample, which can also meet the test requirements, but the test process is complex, the test efficiency is low, and the manpower and resources are wasted. If the workbench moves, shakes, or the horizontal test fixture plane is not horizontal due to environmental factors, it will cause inaccurate measurement results, cause the test sample to be mismeasured, low measurement accuracy, and other problems, affecting the production efficiency and product competitiveness of the product.

[0051] To solve the above problems, the present application provides a horizontal test device for calibrating and testing the sensor in the test sample. The surface of the horizontal test device in the present application can be automatically adjusted to the horizontal state under the principle of horizontal balance, without manual debugging, saving labor cost, simplifying the method of horizontal calibration and testing, and improving the efficiency of horizontal calibration and testing. Moreover, the horizontal test device provided in the embodiment has small external environment interference and small horizontal angle error, which can improve the accuracy of the product and enhance the competitiveness of the product.

[0052] The technical solutions in the present application will be described clearly and completely in combination with the drawings in the present application.

[0053] Please refer to Figure 1 and Figure 2 , Figure 1 is a structural schematic diagram of the horizontal test device 100 provided in the embodiment of the present application, Figure 2 is Figure 1 a partial structural schematic diagram of the horizontal test device 100 shown in

[0054] The horizontal test device 100 provided in the present application is used for calibrating and testing the sensor in the test sample 200 (such asFigure 8 The sensor is arranged in the sample 200 to be tested. The sensor can be an acceleration sensor or a gravity sensor, etc. The sample 200 to be tested is an example of a smart watch. Alternatively, the sample 200 to be tested can be a mobile phone, a tablet computer or other electronic device. Alternatively, the sample 200 to be tested can also be a terminal product component provided with a sensor.

[0055] For the convenience of description, the width direction of the horizontal testing device 100 is defined as the second direction, i.e., the X direction; the length direction of the horizontal testing device 100 is defined as the first direction, i.e., the Y direction; and the height direction of the horizontal testing device 100 is defined as the third direction, i.e., the Z direction. The X direction, the Y direction and the Z direction are perpendicular to each other.

[0056] The horizontal testing device 100 includes a box 10, a balancing liquid (not shown), a floating platform 2, a first carrier 50 and a second carrier 70. The balancing liquid is arranged in the box 10, and the floating platform 2 floats on the surface of the balancing liquid. The first carrier 50 and the second carrier 70 are arranged on the floating platform 2 away from the surface of the balancing liquid, and the first carrier 50 and the second carrier 70 are used to place the sample 200 to be tested.

[0057] Please refer to Figure 3 , Figure 3 is Figure 1 a partially exploded structural schematic view of the horizontal testing device 100.

[0058] The box 10 includes a first bottom plate 11 and a first side plate 12. The first side plate 12 is arranged around the outer circumferential side of the first bottom plate 11 and is fixedly and sealingly connected with the first bottom plate 11. The box 10 is provided with a receiving groove 13. The opening of the receiving groove 13 is arranged opposite to the first bottom plate 11. In the embodiment, the first side plate 12 is connected perpendicularly to the first bottom plate 11. That is, the included angle between the first side plate 12 and the first bottom plate 11 is 90 degrees. In other embodiments, the included angle between the first side plate 12 and the first bottom plate 11 can be slightly greater than 90 degrees or slightly less than 90 degrees. The box 10 is a cuboid box 10. The first bottom plate 11 is a rectangle. The number of the first side plates 12 is four, and the four first side plates 12 are connected end to end. In other embodiments, the box 10 can also be a cylinder, an elliptical cylinder or other shapes.

[0059] The balancing liquid is contained in the receiving tank 13. The height of the balancing liquid is smaller than the height of the receiving tank 13. That is, the dimension of the balancing liquid along the Z direction is smaller than the dimension of the receiving tank 13 along the Z direction to prevent the balancing liquid from overflowing from the housing 10. In this embodiment, the depth of the balancing liquid is 1 cm to 2 cm. In other embodiments, the depth of the balancing liquid may be slightly less than 1 cm, or greater than 2 cm. In this embodiment, the balancing liquid is tap water. In other embodiments, the balancing liquid may also be pure water, alcohol, acetone, or other liquids. There is no specific limitation on the type of the balancing liquid.

[0060] It should be noted that when the balancing liquid is in a stationary state, the liquid surface of the balancing liquid is parallel to the horizontal plane. When the housing 10 moves or shakes, the balancing liquid will shake within the housing 10. When the housing 10 is stationary, the balancing liquid will return to a stationary state within a short period of time (approximately 1 second), and the liquid surface of the balancing liquid will return to being parallel to the horizontal plane.

[0061] The floating platform 2 includes a first surface 201 and a second surface 202. The first surface 201 and the second surface 202 are arranged opposite each other along the height direction of the floating platform 2. In this embodiment, the first surface 201 is a plane. Alternatively, the first surface 201 includes at least a plane portion. The first carrier 50 and the second carrier 70 are both fixed to the first surface 201.

[0062] The floating platform 2 is arranged in the receiving tank 13 and floats on the surface of the balancing liquid. Among them, the second surface 202 faces the balancing liquid and contacts the balancing liquid, and the first surface 201 faces away from the balancing liquid. When the balancing liquid is stationary, the floating platform 2 is stationary, the first surface 201 is parallel to the horizontal plane, and the horizontal testing device 100 is in a horizontal state. When the balancing liquid shakes, the floating platform 2 shakes with the liquid surface of the balancing liquid, and the horizontal testing device 100 is in a non-horizontal state. It is understandable that when the horizontal testing device 100 is in a horizontal state, the first surface 201 is parallel to the horizontal plane and remains stable. At this time, the horizontal calibration and testing of the sample to be tested 200 can ensure the accuracy and stability of the horizontal calibration.

[0063] like Figure 2 and Figure 3 As shown, the floating platform 2 includes a floating plate 20, a bracket 30, and a supporting plate 40. The floating plate 20, the bracket 30, and the supporting plate 40 are stacked in sequence along the Z direction. In this embodiment, the floating plate 20 is a rectangular plate. In other embodiments, the floating plate 20 can also be a circular plate, an elliptical plate, or other special-shaped plates. The floating plate 20 includes a first upper surface 21 and a first lower surface 22. The first lower surface 22 and the first upper surface 21 are arranged opposite to each other along the thickness direction of the floating plate 20. In this embodiment, the first lower surface 22 and the first upper surface 21 are both planes, and the first lower surface 22 and the first upper surface 21 are arranged in parallel. It can be understood that the first lower surface 22 is the second surface 202 of the floating platform 2.

[0064] The density of the floating plate 20 is less than that of the balancing fluid. Exemplarily, the floating plate 20 is a porous foam plate. Alternatively, the floating plate 20 may be another plate having a density less than that of the balancing fluid. In this embodiment, the floating plate 20 is a plate with uniform density, and the center of gravity of the floating plate 20 is located at its geometric center. Specifically, the center of gravity of the floating plate 20 is located at both the center of the floating plate 20 in the Y direction and the center of the floating plate 20 in the X direction.

[0065] The floating plate 20 is disposed within the receiving tank 13 and floats on the surface of the balancing liquid. The first lower surface 22 faces the balancing liquid and is in contact with the balancing liquid. In this embodiment, by configuring the floating plate 20 as a plate with uniform density and locating its center of gravity at its geometric center, the stability of the floating plate 20 floating on the balancing liquid is enhanced, thereby improving the efficiency and accuracy of level calibration and testing of the sample 200 using the leveling test device 100.

[0066] In this embodiment, the dimensions of the floating plate 20 are smaller than those of the receiving groove 13. Specifically, the width of the floating plate 20 is smaller than the width of the receiving groove 13, and its length is smaller than the width of the receiving groove 13. When the floating plate 20 is positioned within the receiving groove 13, it is spaced apart from the inner wall of the receiving groove 13. Along the Z direction, the orthographic projection of the floating plate 20 is completely within the orthographic projection of the receiving groove 13, and the perimeter of the orthographic projection of the floating plate 20 is spaced apart from the perimeter of the orthographic projection of the receiving groove 13. In other words, the floating plate 20 is spaced apart from both the first bottom plate 11 and the first side plate 12.

[0067] It is understandable that when the balancing liquid shakes in the box body 10, the float 20 will shake with the balancing liquid. When the balancing liquid returns to a static state, the float 20 returns to a static state. In this embodiment, by spacing the float 20 and the inner wall of the receiving tank 13, it is possible to avoid interference between the float 20 and the box body 10 when the float 20 moves with the balancing liquid, so that when the balancing liquid returns to a static state, the float 20 can return to a static state and the horizontal testing device 100 can return to a horizontal state. In other words, in this embodiment, by spacing the float 20 and the inner wall of the receiving tank 13, it is possible to avoid the inner wall of the receiving tank 13 from jamming the float 20, resulting in the float 20 being unable to return to a horizontal state when the balancing liquid returns to a static state.

[0068] like Figure 3As shown, the support 30 comprises a second bottom plate 31 and a second side plate 32. The second side plate 32 is connected to the outer circumferential side of the second bottom plate 31 and is arranged at an angle with the second bottom plate 31. In this embodiment, the angle between the second side plate 32 and the second bottom plate 31 is 90 degrees. In other embodiments, the angle between the second side plate 32 and the second bottom plate 31 can be slightly less than 90 degrees or slightly greater than 90 degrees. In this embodiment, the number of second side plates 32 is two. The two second side plates 32 are oppositely arranged along the X direction and are respectively connected to the opposite two side edges of the second bottom plate 31 in the X direction. That is, the two second side plates 32 are symmetrically arranged along the X direction to ensure that the center of gravity of the support 30 is located at the geometric center of the support 30. In other embodiments, the second side plate 32 can also be three or four.

[0069] In this embodiment, the support 30 is a hollow structure. In this way, the mass of the floating platform 2 can be reduced, thereby reducing the density of the floating platform 2. In other embodiments, the support 30 can also be a solid plate body.

[0070] The support 30 and the floating plate 20 are arranged in a stack along the Z direction and are located on the side of the floating plate 20 away from the first bottom plate 11. Among them, the second bottom plate 31 is fixedly connected with the first upper surface 21, and the second side plate 32 extends away from the floating plate 20. For example, the support 30 and the floating plate 20 are adhesively fixed. Alternatively, the support 30 and the floating plate 20 can also be fixedly connected by screws or other means. In this embodiment, the outer periphery of the support 30 is flush with the outer periphery of the floating plate 20. That is, the orthogonal projection of the support 30 along the Z direction coincides with the orthogonal projection of the floating plate 20 along the Z direction. The support 30 is partially located in the accommodation groove 13 and partially extends out of the opening of the accommodation groove 13. Moreover, the outer circumferential surface of the support 30 is spaced apart from the inner wall of the accommodation groove 13. In other embodiments, the support 30 can also be completely located in the accommodation groove 13 or completely located outside the accommodation groove 13, as long as the support 30 is spaced apart from the box body 10, that is, as long as the support 30 does not contact the box body 10.

[0071] As shown, Figure 2 The floating plate 20 and the support 30 are shown floating on the surface of the balancing liquid. When the balancing liquid is in a static state, the floating plate 20 and the support 30 are both in a horizontal state. When the balancing liquid is agitated in the box body 10, the floating plate 20 and the support 30 are agitated together with the balancing liquid. When the balancing liquid returns to the static state, the floating plate 20 and the support 30 simultaneously return to the static state and the horizontal state. In this embodiment, by spacing the outer circumferential surface of the support 30 from the inner wall of the accommodation groove 13, interference between the support 30 and the box body 10 when the support 30 moves with the balancing liquid can be avoided, so that when the balancing liquid returns to the static state, the floating plate 20 and the support 30 can return to the static state, and the horizontal test device 100 can return to the horizontal state.

[0072] Please refer toFigure 4 , Figure 4 is Figure 3 partially structural schematic view of the horizontal testing device 100 at another angle.

[0073] In this embodiment, the carrier plate 40 is a rectangular plate. In other embodiments, the carrier plate 40 can also be a circular plate, a square plate or other shaped plate. The carrier plate 40 comprises a first side surface 41, a second side surface 42, a third side surface 43, a fourth side surface 44, a second upper surface 45 and a second lower surface 46. The second upper surface 45 and the second lower surface 46 are oppositely arranged along the thickness direction of the carrier plate. The second upper surface 45 is the first surface 201 of the floating platform 2. The second upper surface 45 is a plane. The first side surface 41 and the second side surface 42 are oppositely arranged along the width direction of the carrier plate 40, i.e. along the X direction. The third side surface 43 and the fourth side surface 44 are oppositely arranged along the length direction of the carrier plate 40, i.e. along the Y direction. The first side surface 41, the third side surface 43, the second side surface 42 and the fourth side surface 44 are connected end to end and are connected between the second upper surface 45 and the second lower surface 46.

[0074] The carrier plate 40 is provided with a first sliding groove 47 and a guide hole 48. In this embodiment, the first sliding groove 47 is arranged at the edge region of the carrier plate 40 close to the positive direction of the Y axis. That is, the first sliding groove 47 is arranged at the edge region of the carrier plate 40 close to the fourth side surface 44. In this embodiment, the first sliding groove 47 penetrates the carrier plate 40 along the thickness direction of the carrier plate 40. That is, the first sliding groove 47 penetrates the second upper surface 45 and the second lower surface 46. In other embodiments, the first sliding groove 47 can also penetrate the second upper surface 45 and not penetrate the second lower surface 46; or the first sliding groove 47 penetrates the second lower surface 46 and not penetrates the second upper surface 45. The first sliding groove 47 is long strip-shaped, and the length direction of the first sliding groove 47 is parallel or substantially parallel to the X direction.

[0075] The extension direction of the guide hole 48 is parallel to the thickness direction of the carrier plate 40, i.e. parallel to the Z direction. In this embodiment, the guide hole 48 is a through hole, and the guide hole 48 penetrates the second upper surface 45 and the second lower surface 46. In other embodiments, the guide hole 48 can also be a blind hole, and the guide hole 48 penetrates the second lower surface 46 and not penetrates the second upper surface 45. The number of guide holes 48 is two. The two guide holes 48 are symmetrically arranged with respect to the center of the carrier plate 40. Specifically, the two guide holes 48 are arranged at opposite diagonal positions of the carrier plate 40. For example, one of the guide holes 48 is arranged at the edge region of the connecting position of the first side surface 41 and the third side surface 43, and the other guide hole 48 is arranged at the edge region of the connecting position of the second side surface 42 and the fourth side surface 44.

[0076] Please refer to Figure 2The support plate 40 is disposed on the side of the bracket 30 facing away from the floating plate 20 and is fixedly connected to the bracket 30. The support plate 40 and the second bottom plate 31 are arranged opposite each other along the Z direction, with the second lower surface 46 facing the second side plate 32. In this embodiment, the support plate 40 and the second side plate 32 are fixedly connected by bolts. In other embodiments, the support plate 40 and the second side plate 32 can also be fixedly connected by welding, bonding, or other means. Alternatively, the support plate 40 and the bracket 30 can be a single piece. When the balancing fluid is in a static state, the floating plate 20, the bracket 30, and the support plate 40 are all in a static state, the second upper surface 45 is parallel to the horizontal plane, and the leveling test device 100 is in a horizontal state. When the balancing fluid sways within the box 10, the floating plate 20, the bracket 30, and the support plate 40 sway together with the balancing fluid. When the balancing fluid returns to a static state, the floating plate 20, the bracket 30, and the support plate 40 simultaneously return to a static state, the second upper surface 45 returns to being parallel to the horizontal plane, and the leveling test device 100 returns to a horizontal state.

[0077] In this embodiment, the outer periphery of the carrier plate 40 protrudes beyond the outer periphery of the bracket 30 along a direction parallel to the second upper surface 45. Specifically, the guide hole 48 is located outside the bracket 30 along a direction parallel to the second upper surface 45. That is, the orthographic projection of the guide hole 48 along the Z direction is located outside the bracket 30.

[0078] like Figure 1 As shown, the horizontal testing device 100 also includes a guide column 101 arranged corresponding to the guide hole 48. There are two guide columns 101. The two guide columns 101 are respectively fixed at two opposite diagonal positions of the box body 10. In addition, the guide column 101 is fixed to the side of the first side plate 12 facing away from the first bottom plate 11, and extends along the Z direction toward the guide hole 48. One guide column 101 is inserted into one guide hole 48. In this embodiment, the outer diameter of the guide column 101 is smaller than the inner diameter of the guide hole 48. When the supporting plate 40 shakes relative to the box body 10, the inner wall of the guide hole 48 can move along the extension direction of the guide column 101, and at the same time, the inner wall of the guide hole 48 can also move relative to the guide column 101 along the radial direction of the guide column 101. That is, when the supporting plate 40 shakes relative to the box body 10, the supporting plate 40 can move relative to the guide column 101 along the axial direction of the guide column 101 and the radial direction of the guide column 101. That is, when the floating platform 2 rocks relative to the box 10 , the floating platform 2 can move relative to the guide post 101 along the axial direction of the guide post 101 and the radial direction of the guide post 101 .

[0079] In the embodiment, the guiding column 101 is fixed on the box 10, the guiding hole 48 is arranged on the bearing plate 40, and the guiding column 101 is arranged in the guiding hole 48, so that the movement of the floating platform 2 is limited and guided, and the shaking range of the floating platform 2 relative to the box 10 is reduced. Meanwhile, in the embodiment, the outer diameter of the guiding column 101 is smaller than the inner diameter of the guiding hole 48, so that the guiding hole 48 and the guiding column 101 have a gap, the bearing plate 40 can move along the radial direction of the guiding column 101, and the freedom degree of the movement of the bearing plate 40 relative to the box 10 is improved. When the balance liquid is restored to be still from shaking, the second upper surface 45 can be restored to be parallel to the horizontal plane.

[0080] In the embodiment, the two guiding columns 101 are arranged at the opposite positions of the box 10, so that the limiting and guiding effects of the movement of the floating platform 2 are further improved, and the stability of the floating platform 2 is improved.

[0081] In an embodiment, the difference between the outer diameter of the guiding column 101 and the inner diameter of the guiding hole 48 is less than or equal to the difference between the width of the floating plate 20 and the width of the accommodation groove 13. In addition, the difference between the outer diameter of the guiding column 101 and the inner diameter of the guiding hole 48 is less than or equal to the difference between the length of the floating plate 20 and the length of the accommodation groove 13. That is, along the XY direction, the movable distance of the bearing plate 40 relative to the guiding column 101 is less than or equal to the movable distance of the floating plate 20 relative to the box 10. In this way, the guiding column 101 can further limit the movement of the floating platform 2 relative to the box 10, and the floating plate 20 can avoid abutting against the inner wall of the accommodation groove 13 when the floating plate 20 and the support 30 move with the balance liquid, so that the floating platform 2 can freely shake with the shaking of the balance liquid, and the second upper surface 45 can be restored to be parallel to the horizontal plane when the balance liquid is restored to be still.

[0082] Please refer to Figure 5 , Figure 5 is Figure 4 the partial structural schematic view of the horizontal test device 100 at another angle.

[0083] The first carrier 50 is provided with a first accommodation groove 51 and a second sliding groove 52. The first accommodation groove 51 is arranged on the top surface of the first carrier 50 and located at the center position of the first carrier 50. The first accommodation groove 51 comprises a first mounting surface 511. The first accommodation groove 51 is used for placing the sample to be tested 200.

[0084] The second sliding groove 52 is arranged along the X direction and spaced from the first accommodating groove 51. The extension direction of the second sliding groove 52 is parallel to the Y direction. In the embodiment, the second sliding groove 52 has two. The two second sliding grooves 52 are respectively located on the opposite sides of the first accommodating groove 51 in the X direction, and the two second sliding grooves 52 are symmetrically arranged with respect to the center of the first carrier 50. In other embodiments, the number of the second sliding grooves 52 can also be one, three or more than four. The top surface of the first carrier 50 refers to the surface of the first carrier 50 facing away from the bearing plate 40.

[0085] The first carrier 50 is arranged on the first surface 201 of the bearing plate 40 and parallel to the first surface 201. The first mounting surface 511 is parallel to the first surface 201. When the to-be-tested sample 200 is placed in the first accommodating groove 51, the bottom surface of the to-be-tested sample 200 is arranged parallel to the first mounting surface 511 and parallel to the first surface 201. When the horizontal testing device 100 is in a horizontal state, the first surface 201 is parallel to the horizontal plane, and the to-be-tested sample 200 is parallel to the horizontal plane. At this time, when the to-be-tested sample 200 is horizontally calibrated, the accuracy of the horizontal calibration can be improved.

[0086] The first carrier 50 can slide along the Y direction relative to the bearing plate 40. Specifically, the horizontal testing device 100 further comprises a sliding column 102. The sliding column 102 is arranged corresponding to the second sliding groove 52, and the sliding column 102 is located in the corresponding second sliding groove 52. When the first carrier 50 slides along the Y direction relative to the bearing plate 40, the inner wall of the second sliding groove 52 slides along the outer surface of the sliding column 102. In the embodiment, by arranging the sliding column 102 on the bearing plate 40 and arranging the second sliding groove 52 on the first carrier 50, the sliding of the first carrier 50 can be guided and limited, so that the first carrier 50 moves along the predetermined movement track. For example, two sliding columns 102 are arranged corresponding to each second sliding groove 52, so as to further improve the stability of the movement of the first carrier 50 relative to the bearing plate 40.

[0087] In the embodiment, by sliding the first carrier 50 along the Y direction relative to the bearing plate 40, the position of the center of gravity of the floating platform 2 in the Y direction can be changed, so that the included angle between the first surface 201 and the horizontal plane can be adjusted, so that the first surface 201 is parallel to the horizontal plane, and the accuracy of the horizontal calibration and testing of the to-be-tested sample 200 by the horizontal testing device 100 can be improved.

[0088] In the embodiment, the slide post 102 is a screw, which can rotate relative to the bearing plate 40 and move along the thickness direction of the bearing plate 40. Specifically, when the first carrier 50 needs to be moved, the slide post 102 is rotated to move the slide post 102 away from the bearing plate 40, and the first carrier 50 is released, at this time, the first carrier 50 can slide along the Y direction relative to the bearing plate 40. When the first carrier 50 moves to the required position, the slide post 102 is rotated to move the slide post 102 towards the bearing plate 40, and the first carrier 50 is locked, at this time, the first carrier 50 cannot move relative to the bearing plate 40. In this way, the movement of the first carrier 50 during the test can be avoided, and it can be ensured that the horizontal test device 100 is always in a horizontal state, so as to improve the accuracy of horizontal calibration and test.

[0089] In the embodiment, the distance from the center of gravity of the first carrier 50 to the first side surface 41 is equal to one half of the width of the bearing plate 40, that is, the distance from the center of gravity of the first carrier 50 to the first side surface 41 is equal to the distance from the center of gravity of the first carrier 50 to the second side surface 42. That is, the orthographic projection of the center of gravity of the first carrier 50 on the first surface 201 is located on the center line of the first surface 201 in the X direction. In this way, the center of gravity of the floating platform 2 is closer to the geometric center of the floating platform 2, or even coincides with the geometric center of the floating platform 2, which can improve the stability of the floating platform 2 and reduce the angle between the first surface 201 and the horizontal plane.

[0090] The distance from the center of gravity of the first carrier 50 to the third side surface 43 is greater than or equal to one fourth of the length of the bearing plate 40, and less than or equal to one half of the length of the bearing plate 40, so as to further reduce the distance from the center of gravity of the floating platform 2 to the geometric center, or even make the center of gravity of the floating platform 2 coincide with the geometric center, thereby further improving the stability of the floating platform 2 and reducing the angle between the first surface 201 and the horizontal plane.

[0091] Please continue to refer to Figure 4 and Figure 5The horizontal testing device 100 further comprises a mounting seat 60. The mounting seat 60 is used for mounting the second carrier 70. The mounting seat 60 comprises a support plate 61 and a mounting plate 62. In the embodiment, the support plate 61 is a triangular plate body. The support plate 61 comprises a bottom edge 611, a first side edge 612 and a second side edge 613. The bottom edge 611, the first side edge 612 and the second side edge 613 are connected end to end. The bottom edge 611 and the first side edge 612 form a first included angle a. In the embodiment, the first included angle a is 45 degrees. In other embodiments, the first included angle a can also be 50 degrees, 60 degrees or other angles, as long as the first included angle a is greater than 0 degrees and less than 180 degrees. Preferably, the first included angle a is an acute angle, that is, the first included angle a is greater than 0 degrees and less than 90 degrees, so as to facilitate the placement of the sample to be tested 200 on the second carrier 70.

[0092] In the embodiment, the number of support plates 61 is two. The two support plates 61 are arranged in parallel and at intervals. The support plates 61 are fixed to the first surface 201 of the carrier plate 40 and are located between the first sliding groove 47 and the first carrier 50 and are arranged at intervals along the Y direction with the first sliding groove 47 and the first carrier 50. The bottom edge 611 is arranged in parallel with the first surface 201, and the included angle between the first side edge 612 and the first surface 201 is equal to or approximately equal to the first included angle a. In the embodiment, the bottom edge 611 is parallel to the Y direction, and the two support plates 61 are arranged in parallel and at intervals along the X direction. In other embodiments, the bottom edge 611 can also be arranged at an angle with the Y direction in parallel with the first surface 201, as long as the included angle between the first side edge 612 and the first surface 201 is equal to the first included angle a.

[0093] The mounting plate 62 comprises a third surface 621 and a third mounting surface 622. The third surface 621 and the third mounting surface 622 are arranged opposite along the thickness direction of the mounting plate 62. The mounting plate 62 is used for mounting the second carrier 70. The mounting plate 62 is fixed to the first side edge 612 of the support plate 61, the third surface 621 faces the first side edge 612, and the third mounting surface 622 is arranged in parallel with the first side edge 612. It can be understood that the included angle between the third mounting surface 622 and the bottom edge 611 is equal to or approximately equal to the first included angle a, and the included angle between the third mounting surface 622 and the first surface 201 is equal to or approximately equal to the first included angle a.

[0094] The top surface of the second carrier 70 is provided with a second accommodating groove 71. The second accommodating groove 71 comprises a second mounting surface 711. The second accommodating groove 71 is used for placing the sample 200 to be tested. The second carrier 70 is fixedly connected with the mounting plate 62, and the second mounting surface 711 is arranged in parallel with the third mounting surface 622. In the embodiment, the second carrier 70 is located in the central region of the mounting plate 62. The bottom surface of the second carrier 70 faces the third mounting surface 622 and is arranged in parallel with the third mounting surface 622. In the embodiment, the second carrier 70 is fixedly connected with the mounting plate 62 by bolts. In other embodiments, the second carrier 70 can also be fixedly connected with the mounting plate 62 by welding, bonding or other methods.

[0095] When the sample 200 to be tested is placed in the second accommodating groove 71, the bottom surface of the sample 200 to be tested is arranged in parallel with the third mounting surface. At this time, the sample 200 to be tested has a second included angle with the first surface 201. The second included angle is equal to or approximately equal to the first included angle α. When the horizontal testing device 100 is in a horizontal state and the first surface 201 is parallel to the horizontal plane, the included angle between the sample 200 to be tested and the horizontal plane is equal to the second included angle. At this time, the sample 200 to be tested can be tested to determine whether the horizontal calibration meets the requirements.

[0096] In the embodiment, the mounting seat 60 with an inclined surface is arranged on the bearing plate 40, and the second carrier 70 is arranged in the mounting seat 60, so that the second carrier 70 is arranged at an included angle with the horizontal plane, thereby enabling the sample 200 to be tested to be calibrated and tested when arranged in the second carrier 70. The structure of the horizontal testing device 100 is simplified, the testing method is simplified, and the testing efficiency is improved.

[0097] The distance from the center of gravity of the second carrier 70 to the first side surface 41 is greater than or equal to one third of the width of the bearing plate 40 and less than or equal to two thirds of the width of the bearing plate 40. In the embodiment, the distance from the center of gravity of the second carrier 70 to the first side surface 41 is equal to one half of the width of the bearing plate 40, that is, the distance from the center of gravity of the second carrier 70 to the first side surface 41 is equal to the distance from the center of gravity of the second carrier 70 to the second side surface 42. In this way, the center of gravity of the floating platform 2 is closer to the geometric center of the floating platform 2, or even coincides with the geometric center of the floating platform 2, thereby improving the stability of the floating platform 2 and reducing the included angle between the first surface 201 and the horizontal plane.

[0098] The distance from the center of gravity of the second carrier 70 to the fourth side surface 44 is greater than or equal to one fourth of the length of the bearing plate 40 and less than or equal to one half of the length of the bearing plate 40, so as to further reduce the distance from the center of gravity of the floating platform 2 to the geometric center, or even make the center of gravity of the floating platform 2 coincide with the geometric center, thereby further improving the stability of the floating platform 2 and reducing the included angle between the first surface 201 and the horizontal plane.

[0099] It can be understood that, in the embodiment, the first carrier 50 and the second carrier 70 are arranged as much as possible in the middle region of the bearing plate 40, so that the center of gravity of the floating platform 2 is as close as possible to the geometric center of the floating platform 2, the stability of the floating platform 2 is improved, and the angle between the first surface 201 and the horizontal plane is reduced, and at the same time, the shaking of the floating platform 2 when the sample 200 is taken and placed can also be reduced or even avoided, that is, the inclination of the first surface 201 is reduced or even avoided.

[0100] Please refer to Figure 6 , Figure 6 is Figure 4 a partially exploded structural schematic view of the horizontal testing device 100.

[0101] In the embodiment, the horizontal testing device 100 further comprises an adjusting member 80. The adjusting member 80 comprises an adjusting block 81 and a connecting column 82. In the embodiment, the adjusting block 81 is a metal block. In other embodiments, the adjusting block 81 can also be made of other materials with relatively large density. The connecting column 82 comprises a connecting part 821 and a limiting part 822. One end of the connecting part 821 is fixedly connected with the adjusting block 81. Specifically, the adjusting block 81 is provided with a connecting hole 811, the connecting hole 811 is provided with an internal thread, and the connecting part 821 is provided with an external thread. The connecting part 821 is installed in the connecting hole 811 and fixedly connected with the adjusting block 81 through the thread. The limiting part 822 is connected to one end of the connecting part 821 away from the adjusting block 81, and the outer diameter of the limiting part 822 is greater than the outer diameter of the connecting part 821.

[0102] The adjusting member 80 is installed on the bearing plate 40 and can move relative to the bearing plate 40 along the X direction. In the embodiment, the adjusting block 81 is arranged on the side of the bearing plate 40 close to the second lower surface 46, the connecting column 82 passes through the first sliding groove 47 from the side of the first surface 201 and is fixedly connected with the adjusting block 81, and the limiting part 822 is located on the side of the second sliding groove 52 close to the first surface 201. That is, the limiting part 822 and the adjusting block 81 are respectively located on opposite sides in the thickness direction of the bearing plate 40. In other embodiments, the adjusting block 81 can be located on the side of the bearing plate 40 close to the first surface 201, and the limiting part 822 can be located on the side of the bearing plate 40 close to the second lower surface 46.

[0103] In the embodiment, by sliding the adjusting member 80 along the X direction relative to the bearing plate 40, the position of the center of gravity of the floating platform 2 in the X direction can be changed, so that the angle between the first surface 201 and the horizontal plane can be adjusted to make the first surface 201 parallel to the horizontal plane, and the accuracy of the horizontal calibration and testing of the sample 200 by using the horizontal testing device 100 can be further improved.

[0104] In this embodiment, the connecting column 82 is a screw, and the connecting column 82 can be rotated relative to the adjustment block 81 to loosen or lock the adjustment member 80 and the support plate 40. Specifically, when it is necessary to move the adjustment member 80, the connecting column 82 can be rotated to move the connecting column 82 in a direction away from the adjustment block 81, and the adjustment member 80 and the support plate 40 are loosened. At this time, the adjustment member 80 slides relative to the support plate 40 along the X direction. When the adjustment member 80 moves to the desired position, the connecting column 82 is rotated to move the connecting column 82 in a direction close to the adjustment block 81, and the adjustment member 80 and the support plate 40 are locked. At this time, the adjustment member 80 cannot move relative to the support plate 40. In this way, the movement of the adjustment member 80 during the test can be avoided, and it can be ensured that the horizontal testing device 100 is always in a horizontal state, thereby further improving the accuracy of the horizontal calibration and testing.

[0105] As can be seen from the description of the first carrier 50, the position of the center of gravity of the floating platform 2 in the Y direction can be adjusted by moving the first carrier 50 relative to the supporting plate 40 in the Y direction. Thus, by adjusting the position of the first carrier 50 and the adjusting member 80, the position of the center of gravity of the floating platform 2 in the X and Y directions can be adjusted. In other words, the position of the center of gravity of the floating platform 2 can be adjusted, thereby aligning the extension direction of the first surface 201 more closely with the horizontal plane. This, in turn, improves the accuracy of leveling and testing the sample 200 using the leveling testing apparatus 100.

[0106] See also Figure 4 In this embodiment, the level testing device 100 further includes a spirit level (not shown). The spirit level is provided on the supporting plate 40 and is parallel to the first surface 201. The spirit level is used to indicate whether the first surface 201 is parallel to the horizontal plane. Exemplarily, the spirit level is used to display the coordinate parameters of the first surface 201. When the coordinate parameters displayed by the spirit level are within the preset horizontal coordinate range, it indicates that the first surface 201 is parallel or approximately parallel to the horizontal plane, and the level testing device 100 is in a horizontal state. When the coordinate parameters displayed by the spirit level are outside the preset horizontal coordinate range, the first surface 201 intersects with the horizontal plane, and the level testing device 100 is in a non-horizontal state. If the coordinate parameters displayed by the spirit level are outside the preset horizontal coordinate range, the position of the adjusting member 80 and the first carrier 50 can be adjusted so that the coordinate parameters displayed by the spirit level are within the preset horizontal coordinate range, thereby making the first surface 201 parallel or approximately parallel to the horizontal plane. The preset horizontal coordinate refers to the coordinate when the spirit level is parallel to the horizontal plane. The preset horizontal coordinate range is formed by the preset horizontal coordinate floating within the allowable range.

[0107] In this embodiment, by setting a level on the supporting plate 40 and observing the coordinates of the level, it is possible to determine whether the first surface 201 is parallel to the horizontal plane. This can facilitate the operation of the tester, improve the efficiency of horizontal calibration and testing, and at the same time, improve the accuracy of horizontal calibration and testing.

[0108] See also Figure 7 , Figure 7 yes Figure 1 The schematic diagram of the structure of the horizontal testing device 100 is shown at another angle.

[0109] The level testing device 100 also includes a foot pad 103. The foot pad 103 is disposed at the bottom of the box body 10 and is fixedly connected to the box body 10. That is, the foot pad 103 is fixed to the surface of the first bottom plate 11 facing away from the first side plate 12. In this embodiment, there are three foot pads 103. The three foot pads 103 are arranged in a triangular shape. Specifically, the three foot pads 103 are arranged in an equilateral triangle shape, or an isosceles triangle shape.

[0110] In this embodiment, by providing foot pads 103 at the bottom of the box 10 and arranging the foot pads 103 in a triangle shape, the stability of the level testing device 100 placed on the work surface can be improved, and the level testing device 100 is relatively stable when placed on any work surface, without generating any empty space, and the level testing device 100 will not shake due to moving its position, thereby improving the stability when using the level testing device 100 for level testing.

[0111] In one embodiment, the height of the foot pad 103 is adjustable. In this way, the height of the foot pad 103 can be adjusted as needed to further improve the stability of the level testing device 100 when placed on the work surface, thereby further improving the stability of the level testing device 100 when performing a level test.

[0112] See also Figure 8 and Figure 9 , Figure 8 It is adopted Figure 1 The structure diagram of the level testing device 100 during the level calibration of the sample 200 to be tested is shown. Figure 9 It is adopted Figure 1 The structure diagram of the horizontal testing device 100 during the testing process of the sample 200 to be tested is shown.

[0113] The process of using the above-mentioned level testing device 100 to perform level calibration and testing on the sample 200 to be tested specifically includes:

[0114] (1) When the balancing fluid and the floating platform 2 are stationary, observe the state of the spirit level. If the spirit level is not level, adjust the position of the adjusting member 80 and / or the position of the first carrier 50 to level the spirit level. If the spirit level is level, there is no need to adjust the positions of the adjusting member 80 and the first carrier 50. At this point, the first surface 201 is parallel to, or approximately parallel to, the horizontal plane.

[0115] (2) Place the sample 200 to be tested in the first receiving groove 51, and obtain the initial coordinate parameters of the sensor in the sample 200 to be tested (such as Figure 8 Specifically, the initial coordinate parameters of the acceleration sensor and gravity sensor within the test sample 200 are read. If the initial coordinate parameters are within the preset initial coordinate range, the test sample 200 meets the calibration requirements and can proceed to the next step of calibration. If the initial coordinate parameters are outside the preset initial coordinate range, it indicates that the installation position deviation of the acceleration sensor or gravity sensor within the test sample 200 is too large, and the test sample 200 needs to be reworked and improved, and does not meet the calibration requirements.

[0116] (3) Performing horizontal calibration on the sample 200 that meets the calibration requirements. Specifically, the sensor in the sample 200 can be horizontally calibrated by writing calibration parameters into the software. After the horizontal calibration, the sample 200 has calibration coordinate parameters.

[0117] (4) Obtain the first coordinate parameter of the sensor in the sample to be tested 200, and compare the first coordinate parameter with the calibration coordinate parameter. When the difference between the first coordinate parameter and the calibration coordinate parameter is within the allowable range, it means that the sample to be tested 200 meets the requirements and the next test can be carried out. When the difference between the first coordinate parameter and the calibration coordinate parameter exceeds the allowable range, the sample to be tested 200 does not meet the requirements, and steps (3) and (4) are repeated until the difference between the first coordinate parameter and the calibration coordinate parameter is within the allowable range.

[0118] (5) Place the sample 200 that meets the requirements in step (4) in the second receiving groove 71, and obtain the second coordinate parameters of the sensor in the sample 200 (such as Figure 9 As shown), the second coordinate parameter is compared with the standard coordinate parameter. When the difference between the second coordinate parameter and the standard coordinate parameter is within the allowable range, the horizontal calibration is passed, and the horizontal calibration and test process is ended. When the difference between the second coordinate parameter and the standard coordinate parameter exceeds the allowable range, the horizontal calibration fails. When the horizontal calibration fails, steps (2), (3), (4) and (5) can be repeated until the difference between the second coordinate parameter and the standard coordinate parameter is within the allowable range, the horizontal calibration is passed, and the horizontal calibration and test process is ended.

[0119] The standard coordinate parameters refer to the coordinate parameters preset in the software when the angle between the sample 200 to be tested and the horizontal plane is equal to the second angle. For example, in this embodiment, when the sample 200 to be tested is placed in the second receiving groove 71, the angle between the sample 200 to be tested and the horizontal plane is 45 degrees. The standard coordinate parameters are the coordinate parameters preset in the software when the angle between the sample 200 to be tested and the horizontal plane is 45 degrees.

[0120] It should be noted that during level calibration and testing of the sample 200, if the floating platform 2 floats significantly during placement of the sample 200, the calibration results may be inaccurate. In this embodiment, when placing the sample 200, the floating amplitude of the floating platform 2 can be determined to be within the allowable range by observing and recording the changes in the coordinate parameters of the level.

[0121] For example, during the process of placing and retrieving the sample 200 to be tested, the software reads the coordinate parameters of the level in real time. If the fluctuation range of the level's coordinate parameters exceeds the allowable range, it indicates that the floating amplitude of the floating platform 2 is large. At this time, the software does not perform calibration and testing, which can avoid large errors in calibration and testing. If the fluctuation range of the level's coordinate parameters is within the allowable range, it indicates that the floating amplitude of the floating platform 2 is small. At this time, the sample 200 to be tested can be calibrated and tested. In this way, the accuracy of level calibration and testing can be improved.

[0122] The level testing device 100 provided herein floats the floating platform 2 on the surface of the balancing liquid. When the balancing liquid is stationary, the level testing device 100 automatically becomes horizontal due to the principle of water balance, and the first surface 201 is parallel to the horizontal plane. This eliminates the need for manual commissioning and spot checks, thereby saving manpower, material resources, and costs. Furthermore, the level testing device 100 provided herein has a simple structure and low manufacturing cost, and can simplify the level calibration and testing methods, thereby improving the efficiency of level calibration and testing.

[0123] Furthermore, in this embodiment, the horizontal testing device 100 is automatically placed in a horizontal state through the principle of water balance, which can reduce the interference of the horizontal testing device 100 with the external environment and reduce the angle between the first surface 201 and the horizontal plane. In other words, the error in the horizontal angle of the horizontal testing device 100 can be reduced, thereby improving the accuracy of horizontal calibration and testing of the sample 200 using the horizontal testing device 100, thereby improving the competitiveness of the product. For example, in this embodiment, when the horizontal testing device 100 is in a horizontal state, the horizontal angle is less than 1°, that is, the angle between the first surface 201 and the horizontal plane is less than 1°.

[0124] It should be noted that, under the influence of the tension and balance force of the balance liquid, when one side of the floating platform 2 is pressed, the other side will be pulled by the balance liquid, and the floating of the floating platform 2 is small. The horizontal testing device 100 provided in the embodiment is less affected by external force, and when the sample 200 to be tested is taken and placed, the horizontal testing device 100 almost remains in a horizontal state, so as to further improve the accuracy of the test. Moreover, even if the floating platform 2 is subjected to a larger pressing force, under the action of the tension and balance force of the balance liquid, the floating platform 2 can quickly (about 1 second) return to the horizontal state. In this way, the influence of external force on the horizontal state of the horizontal testing device 100 can be further reduced, and the horizontal calibration and testing efficiency can be improved.

[0125] In the embodiment, the first carrier 50 and the second carrier 70 are arranged in the middle region of the bearing plate 40, and when the sample 200 to be tested is taken and placed, the acting force on the floating platform 2 is perpendicular to the first surface 201, that is, parallel to the Z direction, so as to reduce or even avoid the shaking of the floating platform 2 when the sample is taken and placed, so as to make the first surface 201 always keep parallel to the horizontal plane, so as to further improve the accuracy of the horizontal calibration and testing.

[0126] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A horizontal testing device for horizontal calibration of a sensor in a sample under test, characterized by, The horizontal testing device comprises a box, a balance liquid, a floating platform, a first carrier and a second carrier. The box is provided with a receiving groove, and the balance liquid is arranged in the receiving groove. The floating platform comprises a first surface and a second surface, and the first surface and the second surface are oppositely arranged along the height direction of the floating platform; the floating platform floats on the liquid surface of the balance liquid, the second surface is in contact with the balance liquid, and the first surface is away from the balance liquid. The first carrier comprises a first mounting surface, the first carrier is fixed to the first surface, and the first mounting surface is arranged in parallel with the first surface; the second carrier comprises a second mounting surface, the second carrier is fixed to the first surface, and the included angle between the second mounting surface and the first surface is greater than 0 degrees and less than 180 degrees; the first mounting surface and the second mounting surface are both used for placing the sample to be tested. The horizontal testing device has a horizontal state, when the horizontal testing device is in the horizontal state, the balance liquid is static, the first surface is parallel to the liquid surface of the balance liquid, the coordinate parameters of the sensor are obtained, and the sensor is horizontally calibrated. When the horizontal testing device is in the horizontal state, the floating platform is spaced apart from the inner wall of the receiving groove.

2. The horizontal test apparatus according to claim 1, wherein The floating platform comprises a floating plate and a bearing plate; the density of the floating plate is less than the density of the balance liquid, the floating plate is at least partially located in the receiving groove, and the floating plate floats on the liquid surface of the balance liquid.

3. The horizontal test apparatus according to claim 2, wherein The bearing plate comprises the first surface, and the bearing plate is arranged on the side of the floating plate away from the balance liquid and is stacked with the floating plate along the height direction of the floating platform; the first surface is located on the side of the bearing plate away from the floating plate. The horizontal testing device further comprises a guide column, the guide column is fixedly connected with the box, and the axial direction of the guide column is parallel to the height direction of the horizontal testing device.

4. The horizontal test apparatus according to claim 3, wherein The bearing plate is provided with a guide hole, the extension direction of the guide hole is parallel to the thickness direction of the bearing plate, the inner diameter of the guide hole is greater than the outer diameter of the guide column; the guide column is arranged in the guide hole, and the bearing plate can move relative to the guide column along the axial direction of the guide column and the radial direction of the guide column. The guide column and the guide hole are both two; the two guide columns are oppositely and spaced apart along the opposite corners of the box, the two guide holes are oppositely and spaced apart along the opposite corners of the bearing plate, and one guide column is arranged in one guide hole.

5. The horizontal test apparatus of claim 4, wherein, The difference between the inner diameter of the guide hole and the outer diameter of the guide column is less than the difference between the width of the receiving groove and the width of the floating plate, and the difference between the inner diameter of the guide hole and the outer diameter of the guide column is less than the difference between the length of the receiving groove and the length of the floating plate.

6. The horizontal test apparatus of claim 4, wherein, When the horizontal testing device is in the horizontal state, the length direction of the floating plate is parallel to the length direction of the receiving groove, and the width direction of the floating plate is parallel to the width direction of the receiving groove. The first carrier is slidably connected with the bearing plate, and the first carrier can move relative to the bearing plate along a first direction; the first direction is parallel to the first surface.

7. The horizontal test device according to any one of claims 1 to 6, characterized in that ​ 8. The horizontal test apparatus according to claim 7, wherein The horizontal testing device further comprises an adjusting member, which is in sliding connection with the bearing plate and can move relative to the bearing plate along a second direction; the second direction is parallel to the first surface and perpendicular to the first direction.

9. The horizontal test apparatus of claim 8, wherein, The bearing plate comprises a first side and a second side, which are oppositely arranged along the second direction. The distance from the center of gravity of the first carrier to the first side is greater than or equal to one third of the size of the bearing plate along the second direction and less than or equal to two thirds of the size of the bearing plate along the second direction. The distance from the center of gravity of the second carrier to the first side is greater than or equal to one third of the size of the bearing plate along the second direction and less than or equal to two thirds of the size of the bearing plate along the second direction.

10. The horizontal test apparatus of claim 9, wherein, The bearing plate comprises a third side and a fourth side, which are oppositely arranged along the first direction and are both connected between the first side and the second side. The distance from the center of gravity of the first carrier to the third side is greater than or equal to one fourth of the size of the bearing plate along the first direction and less than or equal to one half of the size of the bearing plate along the second direction. The second carrier is located between the first carrier and the fourth side, and the distance from the center of gravity of the second carrier to the fourth side is greater than or equal to one fourth of the size of the bearing plate along the first direction and less than or equal to one half of the size of the bearing plate along the first direction.

11. The horizontal test device according to any one of claims 8 to 10, characterized in that The horizontal testing device further comprises a level, which is arranged on the floating platform and is parallel to the first surface.

12. The horizontal test apparatus of claim 1, wherein, The horizontal testing device further comprises a mounting base, which comprises a third mounting surface, is fixed to the first surface, and has an included angle with the first surface greater than 0 degrees and less than 180 degrees; the second carrier is fixed to the third mounting surface, and the second mounting surface is parallel to the third mounting surface.

13. The horizontal test apparatus of claim 1, wherein, The horizontal testing device further comprises three foot pads, which are all arranged outside the accommodating groove, are fixedly connected with the bottom surface of the box body, and are arranged in a triangular shape.

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