CN217212793U

CN217212793U - Acceleration sensor testing device

Info

Publication number: CN217212793U
Application number: CN202220329031.1U
Authority: CN
Inventors: 袁春健
Original assignee: Chengdu Southwest Jiaotong University Electromechanical Equipment Co ltd
Current assignee: Chengdu Southwest Jiaotong University Electromechanical Equipment Co ltd
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2022-08-16
Anticipated expiration: 2032-02-17

Abstract

The utility model provides an acceleration sensor testing device, including the test box, be equipped with operating panel and test circuit in the test box, operating panel with the test circuit electricity is connected, the test circuit includes host system, signal generation module and acquisition module, host system includes the master control board, the acquisition module includes the power strip, operating panel, master control board and the power strip tiles respectively and locates in the test box, operating panel arranges the top in; the test circuit is divided into a plurality of modules, and when the acceleration sensor test device is damaged or abnormal, the acceleration sensor test device is convenient for maintenance personnel to quickly check and maintain. Operation panel, main control board and power strip are laid respectively the level in the test box, simple structure just reduces the volume.

Description

Acceleration sensor testing device

Technical Field

The utility model relates to an acceleration sensor tests technical field, particularly, relates to an acceleration sensor testing arrangement.

Background

The acceleration sensor is a sensor capable of measuring acceleration. At present, the acceleration sensor is widely applied to the fields of military affairs, aerospace, geodetic surveying, industrial control and the like. Various characteristics of the acceleration sensor directly affect its use performance, including sensitivity, zero point voltage, input/output impedance, offset voltage, and the like. Therefore, the acceleration sensor needs to be tested and calibrated before it is shipped from a factory.

The existing acceleration sensor testing device is complex in structure, inconvenient to operate and incapable of rapidly troubleshooting in the daily maintenance and inspection process of the acceleration sensor testing device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an acceleration sensor testing arrangement, it can find out unusual problem fast with a plurality of module layered designs, and the structure is clear, easy operation.

The embodiment of the utility model discloses a realize through following technical scheme:

the utility model provides an acceleration sensor testing arrangement, includes the test box, be equipped with operating panel and test circuit in the test box, operating panel with the test circuit electricity is connected, test circuit includes host system, signal generation module and collection module, host system includes the master control board, collection module includes the power strip, operating panel, master control board and the power strip tiles respectively and locates in the test box, operating panel arranges the top in the signal generation module is including the signal generator and the power amplifier that connect gradually, signal generator's input is connected the master control board.

Preferably, the test circuit further comprises a drive oscillator, and an input end of the drive oscillator is connected with the power amplifier.

Preferably, the acquisition module further comprises a sensor interface, a data acquisition card, a constant current adapter and a standard acceleration sensor, wherein the output end of the standard acceleration sensor is connected with the input end of the constant current adapter, the output end of the constant current adapter is connected with the first input end of the data acquisition card, the input end of the sensor interface is connected with the acceleration sensor to be detected, the output end of the sensor interface is connected with the second output end of the data acquisition card, and the output end of the power panel is respectively connected with the constant current adapter and the sensor interface.

Preferably, the acceleration sensor testing device further comprises a power module, the power module comprises a first switch power supply, a second switch power supply and a power switch, an output end of the power switch is connected with an input end of the first switch power supply, an output end of the first switch power supply is connected with the power amplifier, the main control board and the power board, and an output end of the second switch power supply is connected with the signal generator.

Preferably, still be equipped with touch display screen, data interface, start button, power indicator and power input interface on the operating panel, the main control board is connected respectively touch display screen, data interface and start button, power input interface connects respectively second switching power supply and switch, power indicator connects power input interface and switch respectively.

Preferably, the operation panel is further provided with a storage groove downwards, and the storage groove is used for placing a connecting lead.

Preferably, the acceleration sensor testing device further comprises a box body cover, and the box body cover is connected with the testing box body through hinges.

The utility model discloses technical scheme has following advantage and beneficial effect at least:

this application divides test circuit into a plurality of modules, and when acceleration sensor testing arrangement damaged or abnormal phenomenon appeared, the maintainer of being convenient for inspects the maintenance fast. The operation panel, the main control board and the power panel are horizontally laid in the test box body respectively, so that the structure is simple and the size is reduced;

the utility model relates to a rationally, simple structure, the practicality is strong.

Drawings

Fig. 1 is a schematic diagram of a test circuit structure of an acceleration sensor testing apparatus provided in embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of a test box of the acceleration sensor testing device provided in embodiment 1 of the present invention;

fig. 3 is a schematic structural diagram of a test box of the acceleration sensor testing device provided in embodiment 1 of the present invention;

icon: the method comprises the following steps of 1-testing a box body, 2-an operation panel, 3-a main control panel, 4-a power panel, 5-a signal generator, 6-an excitation oscillator, 7-a sensor interface, 8-a data acquisition card, 9-a constant current adapter, 10-a standard acceleration sensor, 11-an acceleration sensor to be tested, 12-a first switching power supply, 13-a second switching power supply, 14-a power switch, 15-a touch display screen, 16-a data interface, 17-a power input interface, 18-a power indicator, 19-a starting button, 20-a storage tank and 21-a power amplifier.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Example 1

As shown in fig. 1-3, an acceleration sensor testing arrangement, including test box 1, be equipped with operating panel 2 and test circuit in the test box 1, operating panel 2 with the test circuit electricity is connected, test circuit includes host system, signal generation module and collection module, host system includes host system 3, collection module includes power strip 4, operating panel 2, host system 3 and power strip 4 tiles respectively and locates in the test box 1, operating panel 2 arranges the top in the signal generation module is including signal generator 5 and the power amplifier 21 that connects gradually, signal generator 5's input is connected host system 3.

This application divides test circuit into a plurality of modules, and when acceleration sensor testing arrangement damaged or abnormal phenomenon appeared, the maintainer of being convenient for inspects the maintenance fast. The operation panel 2, the main control board 3 and the power panel 4 are horizontally laid in the test box body 1 respectively, the structure is simple, and the size is reduced.

The test circuit further comprises a drive oscillator 6, and an input end of the drive oscillator 6 is connected with the power amplifier 21.

Specifically, the excitation oscillator is used to provide acceleration signals for the measured acceleration sensor and the standard acceleration sensor 10. The measured acceleration sensor and the standard acceleration sensor 10 output respective voltage signals to the acquisition module, the acquisition module performs analog-to-digital conversion on the voltage signals, the voltage signals are converted into digital signals, the digital signals are output to the main control module, and the main control module receives the digital signals of the measured acceleration sensor and the standard acceleration sensor and acquires the sensitivity of the measured acceleration sensor.

The input end of the signal generator 5 is connected with the main control board 3. The tester inputs the frequency and the amplitude of the driving signal into the main control board 3, the main control board 3 sends the frequency and the amplitude of the driving signal to the signal generator 5, and the signal generator 5 generates a sinusoidal driving signal with corresponding frequency and amplitude according to the frequency and the amplitude. The signal generator 5 outputs a sinusoidal driving signal to the power amplifier 21, the power amplifier 21 amplifies the sinusoidal driving signal and generates a constant current output, and then the constant current output is transmitted to the excitation oscillator 6, and the excitation oscillator 6 generates vibration according to the sinusoidal driving signal to provide acceleration signals for the acceleration sensor 11 to be measured and the standard acceleration sensor 10. The measured acceleration sensor and the standard acceleration sensor 10 output respective voltage signals according to the acceleration signals, and are collected by the collection module.

The acquisition module further comprises a sensor interface 7, a data acquisition card 8, a constant current adapter 9 and a standard acceleration sensor 10, wherein the output end of the standard acceleration sensor 10 is connected with the input end of the constant current adapter 9, the output end of the constant current adapter 9 is connected with the first input end of the data acquisition card 8, the input end of the sensor interface 7 is connected with an acceleration sensor 11 to be detected, the output end of the sensor interface 7 is connected with the second output end of the data acquisition card 8, and the output end of the power panel 4 is respectively connected with the constant current adapter 9 and the sensor interface 7.

In this embodiment, the sensor interface 7 is disposed on the operation panel 2, the measured acceleration sensor is mounted on the operation panel 2 through the sensor interface 7, and the data acquisition card 8 acquires a voltage signal output by the measured acceleration sensor and performs analog-to-digital conversion on the voltage signal of the acceleration sensor. The standard acceleration sensor 10 receives the acceleration signal to generate a charge signal, the charge signal passes through the constant current adapter 9 to generate a voltage signal of the standard acceleration sensor 10 and is transmitted to the data acquisition card 8, and the data acquisition card 8 performs analog-to-digital conversion on the voltage signal of the standard acceleration sensor 10. The power supply board 4 is used for supplying power to the constant current adapter 9 and the sensor interface 7.

Acceleration sensor testing arrangement still includes power module, power module includes first switching power supply 12, second switching power supply 13 and switch 14, switch 14's output is connected first switching power supply 12's input, first switching power supply 12's output is connected power amplifier 21, main control panel 3 and power strip 4, second switching power supply 13's output is connected signal generator 5. The power switch 14 is used for controlling the on/off of the power input interface 17 and the first switching power supply 12.

In this embodiment, the first switching power supply 12 is a 12V switching power supply, and the second switching power supply 13 is a 5V switching power supply.

Still be equipped with touch display screen 15, data interface 16, start button 19, power indicator 18 and power input interface 17 on the operating panel 2, main control panel 3 connects respectively touch display screen 15, data interface 16 and start button 19, power input interface 17 connects respectively second switching power supply 13 and switch 14, power indicator 18 connects power input interface 17 and switch 14 respectively. The frequency and the amplitude of a driving signal are input to the main control panel 3 through the touch display screen 15, the touch display screen 15 is further used for displaying a sensitivity test result of the tested acceleration sensor, the data interface 16 is used for outputting the test result of the tested acceleration sensor, the start button 19 is used for starting or closing the acceleration sensor test device, the power indicator 18 is used for displaying the on-off condition of a power supply, and the power input interface 17 is used for providing an input power supply for the first switching power supply 12 and the second switching unit.

The operation panel 2 is further provided with a storage groove 20 downward, and the storage groove 20 is used for placing a connecting wire.

The acceleration sensor testing device further comprises a box body cover, and the box body cover is connected with the testing box body 1 in a hinge mode.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an acceleration sensor testing arrangement, its characterized in that, includes test box (1), be equipped with operating panel (2) and test circuit in test box (1), operating panel (2) with the test circuit electricity is connected, test circuit includes host system, signal generation module and collection module, host system includes main control board (3), collection module includes power strip (4), operating panel (2), main control board (3) and power strip (4) tiling respectively are located in test box (1), operating panel (2) are arranged in the top, signal generation module is including signal generator (5) and power amplifier (21) that connect gradually, the input of signal generator (5) is connected main control board (3).

2. Acceleration sensor testing device according to claim 1, characterized in, that the test circuit further comprises a stimulus oscillator (6), the input of the stimulus oscillator (6) being connected to the power amplifier (21).

3. The acceleration sensor testing device according to claim 2, wherein the collecting module further comprises a sensor interface (7), a data collecting card (8), a constant current adapter (9) and a standard acceleration sensor (10), an output end of the standard acceleration sensor (10) is connected to an input end of the constant current adapter (9), an output end of the constant current adapter (9) is connected to a first input end of the data collecting card (8), an input end of the sensor interface (7) is connected to an acceleration sensor (11) to be tested, an output end of the sensor interface (7) is connected to a second output end of the data collecting card (8), and an output end of the power board (4) is respectively connected to the constant current adapter (9) and the sensor interface (7).

4. The acceleration sensor testing device of claim 3, further comprising a power module, wherein the power module comprises a first switching power supply (12), a second switching power supply (13) and a power switch (14), an output terminal of the power switch (14) is connected to an input terminal of the first switching power supply (12), an output terminal of the first switching power supply (12) is connected to the power amplifier (21), the main control board (3) and the power board (4), and an output terminal of the second switching power supply (13) is connected to the signal generator (5).

5. The acceleration sensor testing device of claim 4, wherein a touch display screen (15), a data interface (16), a start button (19), a power indicator (18) and a power input interface (17) are further disposed on the operation panel (2), the main control panel (3) is respectively connected to the touch display screen (15), the data interface (16) and the start button (19), the power input interface (17) is respectively connected to the second switching power supply (13) and the power switch (14), and the power indicator (18) is respectively connected to the power input interface (17) and the power switch (14).

6. The acceleration sensor testing device of claim 1, characterized in that the operation panel (2) is further provided with a storage groove (20) downwards, the storage groove (20) is used for placing a connecting wire.

7. The acceleration sensor testing device of claim 1, further comprising a case cover, said case cover being hinge-connected to said test case (1).