Stability test equipment and system

By using stability testing equipment and systems, distance sensors and host computers are used to accurately detect the displacement and stabilization time of the device under test, solving the problem of large measurement errors in existing technologies and realizing high-precision swing stability testing.

CN223500620UActive Publication Date: 2025-10-31GUANGZHOU JINGCE TESTING TECH CO LTD
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Patent Information

Application Number
CN202422683302.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-04
Publication Date
2025-10-31
Estimated Expiration
2034-11-04

AI Technical Summary

Technical Problem

In existing technologies, the measurement error of the swing stability test of the device under test is large and the accuracy is low, making it impossible to accurately determine the swing amplitude and stabilization time.

Method used

Stability testing equipment is used, including an installation platform, force application device and testing components. Distance sensors are used to detect displacement, and a lifting mechanism and rotary joint are combined to adapt to different size specifications. A three-dimensional moving mechanism accurately applies external force, and the stabilization time is analyzed by a host computer.

Benefits of technology

It improves the precision and accuracy of the swing stability test of the device under test, can accurately determine the swing amplitude and stabilization time, reduce measurement errors, and provide reliable test data.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides stability testing equipment and system.The stability testing equipment is applied to a device to be tested, the device to be tested is provided with an external force applying point and a displacement monitoring point which are different in position, the stability testing equipment comprises a mounting platform, a force applying device and a testing assembly, and the mounting platform is used for fixing the device to be tested; the force application device is used for applying external force to the external force application point, so that the to-be-tested device swings; the test assembly is arranged on the mounting platform; and the test assembly comprises a distance sensor and is used for detecting the displacement of the displacement monitoring point. Compared with a method of roughly determining the stability performance of the to-be-tested device by observing the to-be-tested device with naked eyes by a tester, the range sensor adopted by the utility model can accurately determine the swing amplitude of the to-be-tested device, and the precision of the swing stability test of the to-be-tested device is effectively improved. Therefore, the problems of large measurement error and low precision of the swing stability test of the to-be-tested device can be solved.
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Description

Technical Field

[0001] This application relates to the field of testing equipment technology, and in particular to a stability testing device and system. Background Technology

[0002] To test the swing stability of a device under test, related technologies involve applying an external force to the device and visually observing the amplitude of its swing to determine its stability. However, this testing method suffers from large measurement errors and low accuracy. Utility Model Content

[0003] This application provides a stability testing device and system that can solve the problems of large measurement error and low accuracy in the swing stability test of the device under test in related technologies.

[0004] In a first aspect, this application provides a stability testing device for use in a device under test, the device under test having external force application points and displacement monitoring points at different locations, the stability testing device comprising:

[0005] An installation platform is used to fix the device under test;

[0006] A force-applying device is used to apply an external force to the point of application of the external force, so as to cause the device under test to oscillate; and

[0007] A test component is installed on the mounting platform; the test component includes a distance sensor facing the displacement monitoring point for detecting the displacement of the displacement monitoring point.

[0008] In the solution provided in this application embodiment, after the force-applying device applies an external force to the external force application point of the device under test fixed on the mounting platform, causing the device under test to swing, the distance sensor of the test component installed on the mounting platform can accurately detect the displacement of the displacement monitoring point. Compared with the related technology where the tester observes the device under test with the naked eye to roughly determine its stability performance, the distance sensor used in this application embodiment can accurately determine the swing amplitude of the device under test, effectively improving the accuracy of the swing stability test of the device under test. Therefore, this application can solve the problems of large measurement error and low accuracy in the swing stability test of the device under test in the related technology.

[0009] In conjunction with the first aspect, in some possible implementations, the test component is flexibly positioned on the mounting platform. This allows for flexible adjustment of the test component's position, making it suitable for electronic devices of different sizes and specifications.

[0010] In combination with the first aspect and the above implementation methods, in some possible implementations, the test component further includes:

[0011] The base is movably connected to the mounting platform;

[0012] A lifting mechanism, one end of which is connected to the base, and the other end of which is connected to the distance sensor.

[0013] This application embodiment, by setting a lifting mechanism and placing a distance sensor on top of the lifting mechanism, enables the test component to be applicable to devices under test of different sizes and specifications.

[0014] Combining the first aspect and the above-described implementation methods, in some possible implementations, the base is a magnetic base, the mounting platform is a metal platform, and the base is magnetically connected to the mounting platform. This allows for adjustable position of the base on the mounting platform.

[0015] In combination with the first aspect and the above implementation methods, in some possible implementations, the test component further includes:

[0016] A rotary joint is connected to the other end of the lifting mechanism, and the distance sensor is fixedly mounted on the rotary joint.

[0017] This application embodiment, by setting a rotary joint, can realize the stability test of the left and right swing of the test device of various sizes and specifications.

[0018] In combination with the first aspect and the above-described implementations, in some possible implementations, the force-applying device includes:

[0019] A push-pull force gauge, wherein the output end of the push-pull force gauge faces the point where the external force is applied;

[0020] The mounting bracket is fixedly connected to the mounting platform and located beside the device under test;

[0021] A three-dimensional moving mechanism is installed on the mounting frame and located on top of the device under test. The output end of the three-dimensional moving mechanism is connected to the push-pull force gauge.

[0022] This embodiment of the application, by setting a three-dimensional moving mechanism, can drive the push-pull force gauge to move in three-dimensional space, so that the output end of the push-pull force gauge is accurately oriented towards the point of application of external force, reducing the error of the external force acting on the point of application of external force, and effectively improving the accuracy of stability testing.

[0023] In combination with the first aspect and the above-described implementation methods, in some possible implementations, the stability testing equipment further includes:

[0024] A host computer is electrically connected to the test component to determine the stabilization time of the device under test based on the displacement; wherein the stabilization time is the duration during which the displacement is greater than a preset value.

[0025] The distance sensor and host computer used in this application embodiment can accurately determine the swing amplitude and stabilization time of the device under test, effectively improving the accuracy of the swing stability test of the device under test.

[0026] Secondly, this application also provides a stability testing system, including:

[0027] The stability testing equipment as described in any of the first aspects above, and

[0028] The device under test is fixedly mounted on the mounting platform.

[0029] In conjunction with the second aspect, in some possible implementations, the device under test includes:

[0030] The bracket is fixedly mounted on the mounting platform; and

[0031] The device body has the external force application point and the displacement monitoring point, and the device body is mounted on the bracket.

[0032] The solution adopted in this application takes into account factors such as the weight, size and usage environment of the electronic device. By setting up a bracket to stably place the main body of the electronic device, the stable operation of the electronic device can be ensured for a long time.

[0033] In conjunction with the second aspect and the above implementation methods, in some possible implementations, the stability testing equipment further includes:

[0034] Multiple clamping members are spaced apart on the side of the bracket away from the mounting platform. The two ends of the clamping members are fixedly connected to the mounting platform to clamp the bracket.

[0035] The embodiments of this application, by setting multiple clamping components, can firmly fix the bracket to the installation platform.

[0036] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0037] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the embodiments described below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0038] Figure 1 This is a schematic diagram of the structure of a device under test;

[0039] Figure 2This is a schematic diagram of the structure of a stability testing device provided in an embodiment of this application;

[0040] Figure 3 This is a schematic diagram of a stability testing system provided in this application for testing the state of forward and backward swaying;

[0041] Figure 4 This is a schematic diagram of a stability testing system provided in this application for testing left and right swing states.

[0042] The annotations in the attached figures are explained as follows:

[0043] 1—Stability testing system;

[0044] 100—Device under test;

[0045] 110—Staff;

[0046] 120—Device body; 121—External force application point; 122—Displacement monitoring point;

[0047] 200—Stability testing equipment;

[0048] 210—Mounting platform; 211—Clamping component;

[0049] 230—Test component; 231—Distance sensor; 232—Base; 233—Lifting mechanism; 234—Rotary joint;

[0050] 240—Host computer;

[0051] F — External force. Detailed Implementation

[0052] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0054] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0055] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0056] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0057] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0058] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0059] To test the swing stability of a device under test, related technologies involve applying an external force to the device and visually observing the amplitude of its swing to determine its stability. However, this testing method suffers from large measurement errors and low accuracy.

[0060] To address the aforementioned technical problems, embodiments of this application provide a stability testing device and system. The stability testing device and system provided in this application will now be described in detail with reference to the accompanying drawings.

[0061] First, please refer to Figures 1 to 4 The stability testing system 1 proposed in this application includes a device under test 100 and a stability testing device 200.

[0062] See Figure 1 The device under test (DUT) 100 has external force application points 121 and displacement monitoring points 122 at different locations. In other words, to conduct a stability test on the DUT 100, the designer can select different locations of the DUT 100 as external force application points 121 and displacement monitoring points 122. External force application point 121 is the point where an external force F is applied to the DUT 100 during the stability test, and displacement monitoring point 122 is the observation point where a specific location of the DUT 100 is monitored during the stability test. The application point and observation point should be interpreted broadly; they are not mathematically devoid of size and shape, but rather as regions with length, width, and boundaries. External force application point 121 and displacement monitoring point 122 are not absolute; their positions can be flexibly chosen by the designer, and they can usually be interchanged.

[0063] See Figure 2 The stability testing equipment 200 may include a mounting platform 210, a force application device (not shown in the figure), and a testing component 230. The mounting platform 210 is used to fix the device under test 100; the force application device is used to apply an external force F to the external force application point 121 to make the device under test 100 swing; the testing component 230 is disposed on the mounting platform 210; the testing component 230 includes a distance sensor 231, which faces the displacement monitoring point 122 and is used to detect the displacement of the displacement monitoring point 122.

[0064] The device under test 100 is fixedly mounted on the mounting platform 210. (See also...) Figure 3 and Figure 4 The device under test (DUT) 100 can be fixed to the mounting platform 210 using a dedicated clamp. The clamp can have various structural forms, allowing designers to design flexibly according to actual needs. In this embodiment, the DUT 100 is typically an electronic device, including but not limited to smart interactive whiteboards, displays, televisions, tablet devices, and smart blackboards. Currently, considering the weight, size, and operating environment of electronic devices, a support structure is typically used to stably place the main body of the electronic device to ensure its long-term stable operation. Therefore, see... Figure 1In some embodiments, the device under test 100 may include a support 110 and a device body 120; the support 110 is fixedly mounted on the mounting platform 210; the device body 120 has an external force application point 121 and a displacement monitoring point 122, and the device body 120 is mounted on the support 110. For the device under test 100 including the support 110, the stability testing equipment 200 may further include multiple clamping members 211; in other words, the fixture for fixing the device under test 100 may employ multiple clamping members 211. The multiple clamping members 211 are spaced apart on the side of the support 110 away from the mounting platform 210, and both ends of the clamping members 211 are fixedly connected to the mounting platform 210 to clamp the support 110. For example, as... Figure 2 , Figure 3 and Figure 4 As shown, the clamping member 211 can be two rods. The two clamping members 211 are mounted on the upper side of the bracket 110 and are located on the front and rear sides of the device body 120 respectively. The two ends of the clamping member 211 extend out of the left and right side edges of the bracket 110 and are fixedly connected to the mounting platform 210 by bolt fastening, thereby effectively clamping the bracket 110 and firmly fixing the bracket 110 on the mounting platform 210.

[0065] It should be noted that different amplitudes of oscillation have different effects on the device under test 100. Taking a display as an example, even a slight jitter of less than 1 mm can affect the display effect and user experience. In related technologies, it is impossible to observe such slight jitter of less than 1 mm with the naked eye. However, the distance sensor 231 in this embodiment can accurately detect slight jitter of less than 1 mm, thus effectively improving the accuracy of stability testing.

[0066] See Figure 3 and Figure 4 Before the stability test, the device under test 100 is first fixed on the mounting platform 210, with the distance sensor 231 facing the displacement monitoring point 122 on the device under test 100. Then, the force application device is aligned with the external force application point 121 on the device under test 100.

[0067] After the force-applying device applies an external force F to the force application point 121 and then removes it, the stability test begins. The device under test 100 swings under the action of the external force F, and the displacement monitoring point 122 on the device under test 100 swings accordingly. At the same time, the distance sensor 231 facing the displacement monitoring point 122 detects the amount of displacement of the displacement monitoring point 122 relative to the stationary state until the device under test 100 returns to the stationary state.

[0068] In the solution provided in this application embodiment, after the force-applying device applies an external force F to the external force application point 121 of the device under test 100 fixed on the mounting platform 210, causing the device under test 100 to swing, the distance sensor 231 of the test component 230 installed on the mounting platform 210 can accurately detect the displacement of the displacement monitoring point 122. Compared with the related technology where the tester observes the device under test with the naked eye to roughly determine the stability performance of the device under test, the distance sensor 231 used in this application embodiment can accurately determine the swing amplitude of the device under test 100, effectively improving the accuracy of the swing stability test of the device under test 100. It can be seen that this application can solve the problems of large measurement error and low accuracy in the swing stability test of the device under test 100 in the related technology.

[0069] The following combination Figures 2 to 4 The specific structure of the stability testing equipment 200 will be described in detail.

[0070] Since different types of devices under test 100 and different models of the same type of device under test 100 have different size specifications, in order to adapt to the testing of devices under test 100 of various sizes and specifications, the present application embodiment has further optimized the structure of the test component 230 for two stability testing methods of device under test 100: back-and-forth swing and left-and-right swing.

[0071] See Figure 2 In some embodiments, in order to achieve stability testing of the back-and-forth swing of the test device 100 of various sizes, the test assembly 230 may also include a base 232 and a lifting mechanism 233; the base 232 is movably connected to the mounting platform 210; one end of the lifting mechanism 233 is connected to the base 232, and the other end of the lifting mechanism 233 is connected to the distance sensor 231.

[0072] It should be noted that before conducting the stability test of the device under test 100's back-and-forth swing, it is first necessary to determine the external force application point 121 and displacement monitoring point 122 on the front or rear side of the device under test 100. Taking a display as an example, if the device under test 100 is a display... Figure 3As shown, the displacement monitoring point 122 can be located at the upper left corner of the front side of the display, 10mm from the left edge, and the external force application point 121 can be located at the upper right corner of the front side of the display, 10mm from the right edge. Since the heights of the test devices 100 vary depending on their size, the heights of the external force application point 121 and the displacement monitoring point 122 on the test devices 100 also differ. Therefore, this embodiment of the application, by setting a lifting mechanism 233 and placing the distance sensor 231 on top of the lifting mechanism 233, allows the test component 230 to be applicable to test devices 100 of different sizes. The lifting mechanism 233 can have various structural forms, such as sleeve type, scissor type, mast type, boom type, truss type, etc. Designers can choose a suitable structural form of the lifting mechanism 233 based on factors such as cost, structural complexity, and ease of operation. This embodiment of the application does not specifically limit this.

[0073] The test component 230 is flexibly positioned on the mounting platform 210. This allows for flexible adjustment of the test component 230's position, making it suitable for electronic devices of different sizes and specifications. In practical applications, various structural forms can be used to achieve adjustable positioning of the test component 230 mounted on the mounting platform 210. In some embodiments, the base 232 can be a magnetic base, and the mounting platform 210 can be a metal platform, with the base 232 and mounting platform 210 magnetically connected. In other embodiments, multiple through holes and / or slots can be provided on the base 232 and mounting platform 210, and bolts can be inserted through these through holes and / or slots to achieve a fixed connection between the base 232 and the mounting platform 210. When it is necessary to adjust the position of the base 232 on the mounting platform 210, the position of the base 232 on the mounting platform 210 can be adjusted by adjusting the positions of the bolts inserted through different through holes or slots.

[0074] See Figure 4 In some embodiments, in order to achieve stability testing of the device under test 100 of various sizes and specifications swinging back and forth, the test assembly 230 may also include a rotary joint 234, which is connected to the other end of the lifting mechanism 233, and the distance sensor 231 is fixedly installed on the rotary joint 234.

[0075] Taking the device under test 100 using a display as an example, such as Figure 4As shown, when performing a left-right swing stability test on the device under test 100, the external force application point 121 can be located 1 mm from the left edge of the top surface of the display, and the displacement monitoring point 122 can be located 1 mm from the right edge of the top surface of the display. Compared to the front-back swing stability test of the device under test 100, where the distance sensor 231 is in a horizontal state when facing the displacement monitoring point 122, the distance sensor 231 is in a vertical state when facing the displacement monitoring point 122 in the left-right swing stability test. Therefore, in this embodiment, by setting a rotary joint 234, the distance sensor 231 is mounted on the top of the lifting mechanism 233 through the rotary joint 234. When the device under test 100 performs a left-right swing stability test, the horizontal distance sensor 231 can be adjusted to a vertical state simply by rotating the rotary joint 234, which facilitates and quickly adjusts the attitude of the distance sensor 231.

[0076] It is understood that there are various types of distance sensors 231. In some embodiments, the distance sensor 231 may include one or more of ultrasonic sensors, infrared sensors, or laser sensors. Using multiple different types of distance sensors 231 in the same stability test can effectively avoid test errors caused by the failure of a single distance sensor 231, thereby effectively improving test accuracy.

[0077] In some embodiments, the force application device may include a push-pull force gauge, with its output end facing the force application point 121. The push-pull force gauge is a mechanical measuring instrument used for testing push and pull forces. Push-pull force gauges can be categorized by display method, such as pointer-type and digital-display type. When applying an external force to the force application point 121, the tester can read the magnitude of the applied external force F through the display area of ​​the push-pull force gauge. The magnitude of the external force F can be determined based on the experiment, for example, it can be 20N, 15N, 10N, etc. The applied external force F can be either a push or a pull force, which the tester can choose flexibly.

[0078] Considering that when a tester applies external force using a push-pull force gauge, the accuracy of the gauge's output end pointing towards the force application point 121 is poor, resulting in a large error in the application of external force F to 121, in some embodiments, the force application device may further include a mounting frame and a three-dimensional moving mechanism (not shown in the figure). The mounting frame is fixedly connected to the mounting platform 210 and located beside the device under test 100; the three-dimensional moving mechanism is mounted on the mounting frame and located on top of the device under test 100, with its output end connected to the push-pull force gauge. The three-dimensional moving mechanism can move the push-pull force gauge in three-dimensional space, ensuring that the gauge's output end accurately points towards the force application point 121, reducing the error of external force F applied to 121, and effectively improving the accuracy of stability testing.

[0079] See Figure 1 , Figure 3 and Figure 4 In some embodiments, the stability testing device 200 may further include a host computer 240, which is electrically connected to the testing component 230 and is capable of determining the stabilization time of the device under test 100's oscillation based on the displacement; wherein, the stabilization time is the duration during which the displacement is greater than a preset value. The preset value may be less than or equal to 0.2 mm, for example, the preset value may be 0.2 mm, 0.15 mm, 0.1 mm, 0.05 mm, etc.

[0080] The host computer 240 may include a processing unit and a display unit. The processing unit is electrically connected to the test component 230, and the display unit is electrically connected to the processing unit. The processing unit can receive and record the displacement of the displacement monitoring point 122 detected by the distance sensor 231 and perform time-domain analysis on the displacement. Specifically, under the influence of air resistance, the displacement of the device under test 100, which is oscillating under the action of an external force F applied by the force-applying device, will gradually decrease over time. Since the distance sensor 231 of this application can accurately detect minute vibrations of less than 1 mm, for a preset value, such as 0.2 mm, when the displacement equals the preset value, this solution can accurately determine the time when the device under test 100 stops oscillating, and thus determine the stabilization time of the oscillation of the device under test 100. The stability performance of the device under test 100 can be accurately determined by the stabilization time.

[0081] The analysis results of the stability performance of the device under test 100 can be displayed intuitively on the display unit through charts and graphs. For example, a rectangular coordinate system can be displayed on the display unit with the time domain as the horizontal axis and the displacement as the vertical axis. The stabilization time can be obtained by subtracting the time when the displacement measured by the distance sensor 231 equals 0.2 mm from the time when the external force F applied by the force-applying device is removed.

[0082] It is understood that the distance sensor 231 of the test component 230 installed on the mounting platform 210 can accurately detect the displacement of the displacement monitoring point 122. After receiving the displacement, the host computer 240 can compare the displacement with a preset value to accurately determine the stabilization time of the swing of the device under test 100. Compared with visually observing the device under test 100 and roughly determining the swing amplitude and stabilization time, the distance sensor 231 and host computer 240 used in this embodiment can accurately determine the swing amplitude and stabilization time of the device under test 100, effectively improving the accuracy of the swing stability test of the device under test 100.

[0083] Furthermore, the stability performance test results of the embodiments of this application are highly accurate and reliable. Compared with the subjective determination of stability performance by testers through visual observation, the use of data-driven, visualized, and continuously monitored methods can obtain accurate, reliable, and reproducible test data. This provides strong support for the horizontal comparison of stability tests of different devices under test 100.

[0084] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A stability testing device (200), characterized in that, The stability testing device (200) is applied to a device under test (100), which has external force application points (121) and displacement monitoring points (122) at different locations. Mounting platform (210) for fixing the device under test (100); A force-applying device for applying an external force to the force application point (121) to cause the device under test (100) to oscillate; and A test component (230) is disposed on the mounting platform (210); the test component (230) includes a distance sensor (231) facing the displacement monitoring point (122) for detecting the displacement of the displacement monitoring point (122).

2. The stability testing equipment (200) according to claim 1, characterized in that, The test component (230) is tunably positioned on the mounting platform (210).

3. The stability testing equipment (200) according to claim 2, characterized in that, The test component (230) also includes: The base (232) is movably connected to the mounting platform (210); A lifting mechanism (233) is provided, one end of which is connected to the base (232), and the other end of which is connected to the distance sensor (231).

4. The stability testing equipment (200) according to claim 3, characterized in that, The base (232) is a magnetic base, and the mounting platform (210) is a metal platform. The base (232) and the mounting platform (210) are magnetically connected.

5. The stability testing equipment (200) according to claim 3, characterized in that, The test component (230) also includes: A rotary joint (234) is connected to the other end of the lifting mechanism (233), and the distance sensor (231) is fixedly mounted on the rotary joint (234).

6. The stability testing equipment (200) according to claim 1, characterized in that, The force-applying device includes: A push-pull force gauge, the output end of which faces the point where the external force is applied (121); The mounting bracket is fixedly connected to the mounting platform (210) and located beside the device under test (100); A three-dimensional moving mechanism is installed on the mounting frame and located on top of the device under test (100), and the output end of the three-dimensional moving mechanism is connected to the push-pull force gauge.

7. The stability testing apparatus (200) according to any one of claims 1 to 6, characterized in that, The stability testing equipment (200) also includes: The host computer (240) is electrically connected to the test component (230) to determine the stabilization time of the swing of the device under test (100) based on the displacement; wherein the stabilization time is the time during which the displacement is greater than a preset value.

8. A stability testing system (1), characterized in that, include: The stability testing device (200) as described in any one of claims 1 to 7, and The device under test (100) is fixedly mounted on the mounting platform (210).

9. The stability testing system (1) according to claim 8, characterized in that, The device under test (100) includes: A bracket (110) is fixedly mounted on the mounting platform (210); and The device body (120) has the external force application point (121) and the displacement monitoring point (122), and the device body (120) is mounted on the bracket (110).

10. The stability testing system (1) according to claim 9, characterized in that, The stability testing equipment (200) also includes: Multiple clamping members (211) are spaced apart on the side of the bracket (110) away from the mounting platform (210). The two ends of the clamping members (211) are fixedly connected to the mounting platform (210) to clamp the bracket (110).