A test device for a sensor

Abstract

The application discloses a kind of test device for sensor, including test unit, including mobile bearing assembly, with mobile bearing assembly vertical insertion self-weight locking assembly, with mobile bearing assembly lateral insertion and symmetrically arranged two groups of adjusting base assembly, mobile debugging component is arranged in mobile bearing assembly and is limited with self-weight locking assembly bottom insertion, and first sensor and second sensor are respectively arranged in adjusting base assembly and are arranged in adjusting base assembly; Self-weight locking assembly is limited and can only move up and down along vertical direction;Adjusting base assembly is limited and can only move left and right along horizontal direction.The beneficial effects of the present application are that multiple sensors are simultaneously clamped by using the self-weight of the clamping member to ensure stability;After clamping and stabilizing, the longitudinal limit sensing distance and the transverse interval distance change test of the two sensors can be performed by rotating the outer adjusting rod, without frequent handling, improving the test efficiency and service life.

Description

Technical Field

[0001] This invention relates to the field of sensor calibration technology, and in particular to a testing device for sensors. Background Technology

[0002] Generator unit speed is a crucial state variable, widely used during start-up and shutdown. To ensure safe and stable operation, continuous monitoring and measurement of the unit's speed parameters are essential during operation. Currently, hydroelectric units commonly employ sensor monitoring; to ensure accurate measurements, the performance of the sensors to be used must be calibrated.

[0003] Current testing equipment for sensor performance is cumbersome to install, making it unsuitable for testing multiple sensors. Sensors are also difficult to install and remove. Furthermore, users often need to customize different testing equipment for different specifications of units, resulting in a waste of resources. In addition, users often need to measure the longitudinal limit sensing distance and lateral range of the sensor, which requires frequent handling of the testing equipment during the testing process, increasing the likelihood of damage to the sensor and its testing equipment. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above or prior art, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide a testing device for sensors that can clamp multiple sensors simultaneously and ensure stability by utilizing the self-weight of the clamping components. After clamping and stabilization, the longitudinal limit sensing distance and lateral interval distance variation tests of two sensors can be performed separately by rotating the external adjustment rod, eliminating the need for frequent handling and improving testing efficiency and service life.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a testing device for a sensor, comprising a testing unit, including a movable bearing assembly, a self-weight locking assembly vertically inserted into the movable bearing assembly, two sets of adjusting base assemblies horizontally inserted into the movable bearing assembly and symmetrically arranged, a movable adjustment assembly disposed within the movable bearing assembly and inserted into the bottom limit of the self-weight locking assembly, and a first sensor and a second sensor respectively disposed in the adjusting base assembly in the forward and lateral directions;

[0008] The self-weight locking component is limited to moving vertically up and down; the adjusting base component is limited to moving horizontally left and right.

[0009] As a preferred embodiment of the testing device for sensors according to the present invention, the movable bearing component includes a conical top blower housing, four sets of rollers disposed at the bottom of the conical top blower housing, two sets of extended support plates symmetrically disposed on both sides of the conical top blower housing, a vertical positioning plate disposed on one side of the top of the conical top blower housing, a vertical limiting plate disposed on the other side of the top of the conical top blower housing, a support moving groove disposed on the vertical limiting plate, and two sets of external openings that penetrate both sides of the conical top blower housing.

[0010] As a preferred embodiment of the sensor testing device of the present invention, the self-weight locking assembly includes a track plate, two sets of traction plates symmetrically arranged on both sides of the track plate and inserted into the track plate, a telescopic plate arranged at the inner end of the traction plate, a driven rod plate arranged in the middle of the traction plate and inserted into the adjusting base assembly, two sets of hinged adjustment plates symmetrically arranged on both sides of the driven rod plate, a clamping plate hinged to the hinged adjustment plate at the bottom, a tight connecting block arranged at the bottom of one end of the clamping plate, a relay rod arranged at the bottom of the middle part of the track plate, cooperative inserts arranged on both sides of the bottom of the relay rod, and an external adjustment rod arranged at the top of the relay rod and movably inserted into the track plate.

[0011] A sensing gap is left between the two sets of hinged adjustment plates; the diameter of the outer adjustment rod is smaller than the diameter of the relay rod.

[0012] As a preferred embodiment of the testing device for sensors of the present invention, the track plate includes two sets of sliding track openings symmetrically arranged on both sides of the track plate, and limiting track openings and air inlets symmetrically arranged at both ends of the track plate.

[0013] As a preferred embodiment of the testing device for sensors according to the present invention, the adjusting base assembly includes a U-shaped base, a mounting port disposed on the U-shaped base, a test port disposed through one side of the U-shaped base, and a tight insertion port disposed on the top of the U-shaped base.

[0014] As a preferred embodiment of the sensor testing device of the present invention, the movable debugging component includes a rotating shaft with a cooperating insertion port on the top, two sets of first hinge plates respectively disposed on both sides of the rotating shaft, a second hinge plate hinged to the first hinge plate, a double-sided rack plate hinged to the second hinge plate, a cooperating rod disposed at the connection between the second hinge plate and the double-sided rack plate and inserted into the self-weight locking component, two sets of gears symmetrically disposed on both sides of one end of the double-sided rack plate, and a fan disposed in the middle of the gears.

[0015] As a preferred embodiment of the testing device for sensors according to the present invention, the bottom of the traction plate is provided with a sliding block adapted to the sliding track opening.

[0016] As a preferred embodiment of the testing device for sensors according to the present invention, the first sensor testing end is oriented along the length direction of the movable support component; the second sensor testing end is oriented perpendicular to the length direction of the movable support component.

[0017] In a preferred embodiment of the sensor testing device of the present invention, the opening direction of the test port is the same as that of the first sensor test end.

[0018] As a preferred embodiment of the testing device for sensors according to the present invention, the top of the moving rod is inserted into the traction plate and one end extends outward.

[0019] The beneficial effects of this invention are as follows: This invention clamps multiple sensors simultaneously and uses the self-weight of the clamping components to ensure stability; after clamping and stabilization, the longitudinal limit sensing distance and lateral interval distance change tests of two sensors can be performed separately by rotating the external adjustment rod, eliminating the need for frequent handling, thus improving testing efficiency and service life. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0021] Figure 1 This is a schematic diagram of the overall structure of the test unit of the testing device used for sensors.

[0022] Figure 2 This is a schematic diagram of the internal structure of the test unit of a test device used for sensors.

[0023] Figure 3 The schematic diagram of the test unit section of the test device used for sensor testing is omitted.

[0024] Figure 4 This is a schematic diagram showing the structural breakdown of the test unit section of a test device used for sensors. Detailed Implementation

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0028] Example 1

[0029] Reference Figures 1-4 This is the first embodiment of the present invention. This embodiment provides a testing device for sensors, which can simultaneously clamp multiple sensors and ensure stability by utilizing the self-weight of the clamping parts. After the clamping is stable, the longitudinal limit sensing distance and lateral interval distance change test of two sensors can be performed by rotating the external adjustment rod, without the need for frequent handling, thus improving testing efficiency and service life.

[0030] Specifically, the test unit 100 includes a movable bearing assembly 101, a self-weight locking assembly 102 vertically inserted into the movable bearing assembly 101, two sets of adjusting base assemblies 103 horizontally inserted into the movable bearing assembly 101 and symmetrically arranged, a movable adjustment assembly 104 disposed in the movable bearing assembly 101 and inserted into the bottom of the self-weight locking assembly 102 for limiting, and a first sensor 105 and a second sensor 106 respectively disposed in the adjusting base assembly 103 in the forward and side directions.

[0031] The self-weight locking assembly 102 is limited to moving up and down in the vertical direction; the adjusting base assembly 103 is limited to moving left and right in the horizontal direction.

[0032] Furthermore, the movable bearing assembly 101 includes a conical top blower housing 101a, four sets of rollers 101b disposed at the bottom of the conical top blower housing 101a, two sets of extended support plates 101c symmetrically disposed on both sides of the conical top blower housing 101a, a vertical positioning plate 101d disposed on one side of the top of the conical top blower housing 101a, a vertical limiting plate 101e disposed on the other side of the top of the conical top blower housing 101a, a support moving groove 101f disposed on the vertical limiting plate 101e, and two sets of external openings 101g that penetrate both sides of the conical top blower housing 101a.

[0033] Furthermore, the self-weight locking assembly 102 includes a track plate 102a, two sets of traction plates 102b symmetrically arranged on both sides of the track plate 102a and inserted into the track plate 102a, a telescopic plate 102c disposed at the inner end of the traction plate 102b, a driven rod plate 102d disposed in the middle of the traction plate 102b and inserted into the adjusting base assembly 103, two sets of hinged adjustment plates 102e symmetrically arranged on both sides of the driven rod plate 102d, a clamping plate 102f hinged at the bottom to the hinged adjustment plate 102e, a tight connecting block 102g disposed at the bottom of one end of the clamping plate 102f, a relay rod 102h disposed at the bottom of the middle part of the track plate 102a, cooperative inserts 102i disposed on both sides of the bottom of the relay rod 102h, and an external adjustment rod 102j disposed at the top of the relay rod 102h and movably inserted into the track plate 102a;

[0034] A sensing gap is left between the two sets of hinged adjustment plates 102e; the diameter of the external adjustment rod 102j is smaller than the diameter of the relay rod 102h.

[0035] Furthermore, the track plate 102a includes two sets of sliding track openings 102a-1 symmetrically arranged on both sides of the track plate 102a, and limiting track openings 102a-2 and air inlets 102a-3 symmetrically arranged at both ends of the track plate 102a.

[0036] Furthermore, the adjustment base assembly 103 includes a U-shaped base 103a, an installation port 103b disposed on the U-shaped base 103a, a test port 103c disposed through one side of the U-shaped base 103a, and a tight insertion port 103d disposed on the top of the U-shaped base 103a.

[0037] Furthermore, the mobile debugging component 104 includes a rotating shaft 104a with a cooperating insertion port on the top, two sets of first hinge plates 104b respectively disposed on both sides of the rotating shaft 104a, a second hinge plate 104c hinged to the first hinge plate 104b, a double-sided rack plate 104d hinged to the second hinge plate 104c, a co-moving rod 104e disposed at the connection between the second hinge plate 104c and the double-sided rack plate 104d and inserted into the self-weight locking component 102, two sets of gears 104f symmetrically disposed on both sides of one end of the double-sided rack plate 104d, and a fan 104g disposed in the middle of the gears 104f.

[0038] Preferably, the bottom of the traction plate 102b is provided with a sliding block adapted to the sliding track opening 102a-1 to ensure that it can move in a straight line. The test end of the first sensor 105 faces the length direction of the moving support component 101; the test end of the second sensor 106 faces the length direction perpendicular to the moving support component 101. The opening direction of the test port 103c is the same as the direction of the test end of the first sensor 105. The top of the co-moving rod 104e is inserted into the traction plate 102b and one end extends outward.

[0039] It should be noted that each of the two sets of U-shaped seats 103a has a support block on one side that plugs into the support moving groove 101f, and the support moving groove 101f provides support force and limitation. In this embodiment, the first sensor 105 and the second sensor 106 both use existing measuring sensors, but are not limited to specific speed sensors. Replacing the sensors as needed for testing is also within the scope of this invention. The model rotating shaft device can use existing technology, such as a standard rotating component driven by a motor, so it will not be described in detail. The size of the tight connection block is adapted to the tight insertion port 103d to facilitate a tight fit during clamping.

[0040] When in use, referring to the diagram, the first sensor 105 and the second sensor 106 are installed and fixed. When replacing a new set of sensors, firstly, by pulling the external adjustment rod 102j, the relay rod 102h drives the track plate 102a to rise. The rise of the track plate 102a causes the traction plate 102b to drive the driven rod plate 102d to rise. Since the height of the two sets of adjustment base assemblies 103 is limited, the driven rod plate 102d will gradually extend out of the U-shaped seat 103a and cause the clamping plate 102f to rise. The tight connecting block gradually disengages from the tight insertion port 103d, the telescopic plate 102c retracts, and the traction plate 102b moves upward relative to the co-moving rod 104e. When the clamping plate 102f rises to a certain height, due to the large weight of the tight connecting block, the clamping plate 102f will deflect around the hinge point of the hinge adjustment plate 102e, leaving space for disassembly above the sensor. Next, the two sets of sensors are removed, and the new two sets of sensors are placed in the mounting ports 103b of the two sets of U-shaped seats 103a according to the orientation of the different test ends. Then, the external adjustment rod 102j is lowered and the clamping plate 102f is manually deflected to the horizontal, so that the tight connecting block can be reinserted into the tight socket 103d. When the tight connecting block is fully in contact with the tight socket 103d, the track plate 102a falls to the lowest point, and when the clamping plate 102f presses the U-shaped seat 103a and the sensor at both ends respectively, the middle of the clamping plate 102f has a downward pulling force, thereby ensuring the clamping force and the stability during clamping through its own weight.

[0041] When verifying the performance of the sensor used for speed measurement, two sets of small model rotating shaft devices are placed at the oriented positions of the lateral and longitudinal test ends, respectively, which are one side and one end of the test unit 100. The model rotating shaft devices can use existing technology and can be replaced according to the type of test sensor. The lateral test end is used to test data at different points at the same distance, and the longitudinal test end is used to test data at different distances at the same point to test the limit sensing distance and the changes at different distances. During the above process, before the track plate 102a falls to the lowest point, the cooperating plug 102i at the bottom of the relay rod 102h cannot connect with the cooperating plug of the rotating shaft 104a. Therefore, when it is not fully clamped and fixed, the positions of the two sets of adjusting base assemblies 103 remain unchanged, ensuring the accuracy and stability during clamping. When the track plate 102a falls to its lowest point, the bottom of the relay rod 102h is inserted into the rotating shaft 104a. With the cooperation of the cooperating plug 102i and the cooperating socket, the rotation of the rotating shaft 104a can be controlled simply by rotating the external adjustment rod 102j at the top of the relay rod 102h. At this time, the orientation of the longitudinal test end is at its maximum distance from a group of devices under test; the orientation of the transverse test end is at its maximum distance from another group of devices under test by pushing the test unit 100 to move under the action of the rollers, and then testing different points at the same distance. At this time, simply rotating the external adjustment rod 102j makes the rotating shaft 104a rotate. The rotation of the rotating shaft 104a causes the two sets of first hinge plates 104b and second hinge plates 104c to cause the double-sided rack plate 104d to move outward along a straight line. At the same time, the two sets of co-moving rods 104e drive the two sets of traction plates 102b to move the two sets of adjusting base assemblies 103 away from the center outward. The first sensor 105 remains at the same position but its distance from the standard device under test is reduced to test the effect of different distances and the limiting sensing distance; the second sensor 106 remains at the same distance but its position relative to another set of standard devices under test is changed to test the effect of changes in the lateral distance. This allows for the calibration of the sensors.

[0042] When the double-sided rack plate 104d moves outward along a straight line, the two sets of gears 104f at the end rotate, causing the fan 104g to rotate. The resulting airflow will be collected by the conical blower housing 101a and transmitted from the blower port 102a-3. This serves two purposes: firstly, to dissipate heat from the test sensor or the device under test; and secondly, to detect dust in the air or on the equipment through wind power transmission, thus avoiding calibration errors due to failure to clean in time.

[0043] In summary, by clamping multiple sensors simultaneously and utilizing the weight of the clamping components to ensure stability, and after the clamping is stable, the longitudinal limit sensing distance and lateral interval distance variation tests of two sensors can be performed separately by rotating the external adjustment rod. This eliminates the need for frequent handling, improving testing efficiency and extending service life.

[0044] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0045] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0046] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A testing device for sensors, characterized in that: include, The test unit (100) includes a movable bearing assembly (101), a self-weight locking assembly (102) vertically inserted into the movable bearing assembly (101), two sets of adjustment base assemblies (103) horizontally inserted into the movable bearing assembly (101) and symmetrically arranged, a movable adjustment assembly (104) disposed in the movable bearing assembly (101) and limitedly inserted into the bottom of the self-weight locking assembly (102), and a first sensor (105) and a second sensor (106) respectively arranged in the front and side of the adjustment base assembly (103); The self-weight locking assembly (102) is limited to moving up and down in the vertical direction; the adjusting base assembly (103) is limited to moving left and right in the horizontal direction. The movable support assembly (101) includes a conical top blower housing (101a), four sets of rollers (101b) disposed at the bottom of the conical top blower housing (101a), two sets of extended support plates (101c) symmetrically disposed on both sides of the conical top blower housing (101a), a vertical positioning plate (101d) disposed on one side of the top of the conical top blower housing (101a), a vertical limiting plate (101e) disposed on the other side of the top of the conical top blower housing (101a), a support moving groove (101f) disposed on the vertical limiting plate (101e), and two sets of external openings (101g) that penetrate both sides of the conical top blower housing (101a). The self-weight locking assembly (102) includes a track plate (102a), two sets of traction plates (102b) symmetrically arranged on both sides of the track plate (102a) and inserted into the track plate (102a), a telescopic plate (102c) disposed at the inner end of the traction plate (102b), a driven rod plate (102d) disposed in the middle of the traction plate (102b) and inserted into the adjusting base assembly (103), and two sets of hinges symmetrically arranged on both sides of the driven rod plate (102d). The system includes a test plate (102e), a clamping plate (102f) hinged to the bottom of the hinged test plate (102e), a tight connecting block located at the bottom of one end of the clamping plate (102f), a relay rod (102h) located at the bottom of the middle part of the track plate (102a), cooperative inserts (102i) located on both sides of the bottom of the relay rod (102h), and an external adjustment rod (102j) located at the top of the relay rod (102h) and movably inserted into the track plate (102a). A sensing gap is left between the two sets of hinged adjustment plates (102e); the diameter of the outer adjustment rod (102j) is smaller than the diameter of the relay rod (102h); The track plate (102a) includes two sets of sliding track openings (102a-1) symmetrically arranged on both sides of the track plate (102a), and limiting track openings (102a-2) and air inlets (102a-3) symmetrically arranged at both ends of the track plate (102a). The adjustment base assembly (103) includes a U-shaped base (103a), an installation port (103b) disposed on the U-shaped base (103a), a test port (103c) disposed through one side of the U-shaped base (103a), and a tight insertion port (103d) disposed on the top of the U-shaped base (103a). The mobile debugging assembly (104) includes a rotating shaft (104a) with a cooperating socket on the top, two sets of first hinge plates (104b) respectively disposed on both sides of the rotating shaft (104a), a second hinge plate (104c) hinged to the first hinge plate (104b), a double-sided rack plate (104d) hinged to the second hinge plate (104c), a co-moving rod (104e) disposed at the connection between the second hinge plate (104c) and the double-sided rack plate (104d) and inserted into the self-weight locking assembly (102), two sets of gears (104f) symmetrically disposed on both sides of one end of the double-sided rack plate (104d), and a fan (104g) disposed in the middle of the gears (104f).

2. The testing apparatus for sensors as described in claim 1, characterized in that: The bottom of the traction plate (102b) is provided with a sliding insert that is adapted to the sliding track opening (102a-1).

3. The testing apparatus for sensors as described in claim 2, characterized in that: The test end of the first sensor (105) is oriented along the length of the mobile support component (101); the test end of the second sensor (106) is oriented perpendicular to the length of the mobile support component (101).

4. The testing apparatus for sensors as described in claim 3, characterized in that: The opening direction of the test port (103c) is the same as the orientation of the test end of the first sensor (105).

5. The testing apparatus for sensors as described in claim 4, characterized in that: The top of the moving rod (104e) is inserted into the traction plate (102b) and one end extends outward.

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