Photoelectric property testing device for gyroscope

Abstract

The utility model discloses a photoelectric property testing device for a gyroscope, which comprises a base, a positioning module and an adjusting testing module, the positioning module and the adjusting testing module are oppositely arranged and are both slidably mounted on the base, the gyroscope to be tested is fixed on the positioning module, and the adjusting testing module comprises a testing support, an adjusting swing arm, a stepping motor and an encoder. The testing support is arranged on the base in a sliding mode, the stepping motor is fixedly installed on the testing support, a front end output shaft of the stepping motor is fixedly connected with the rear end of the adjusting swing arm, the front end of the adjusting swing arm is connected with a light barrier of a gyroscope to be tested, and a rear end output shaft of the stepping motor is connected with the encoder. And the detection system is positioned on one side of the base and is electrically connected with the detected gyroscope and the encoder. The stepping motor drives the adjusting swing arm to realize synchronous rotation of the light barrier, the opening angle and the compensation angle of the gyroscope are accurately measured through photoelectric signals of the encoder and the gyroscope, and the device has the advantages of automatic detection, high detection precision and low cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of photoelectric performance testing device of gyroscope. BACKGROUND

[0002] Gyroscope is one of the key factors to determine the hitting accuracy of aircraft, and its function is to convert the motion parameters such as angular velocity and angular displacement of the aircraft into detectable current signal output. Determining the opening angle and compensation angle of the gyroscope rotor shaft is the key zero position to determine the measurement accuracy of the gyroscope angular velocity, angular displacement and other motion parameters. Certain requirements are usually made on the opening angle and compensation angle of the gyroscope, and corresponding tests are required. The test method is usually to fix and power on the gyroscope, and test the opening angle and compensation angle during power on.

[0003] The common gyroscope test equipment is composed of a stabilized power supply, a gyroscope fixing bracket, a pointer and an angle disc. The entire operation process is completed by manual operation of mechanical equipment, and each parameter is controlled and interpreted by hand. The opening angle and compensation angle measurement accuracy and efficiency of the gyroscope rotor shaft are not high, the quality and production efficiency are difficult to guarantee, and it cannot meet the detection needs of large-scale production. SUMMARY

[0004] In order to solve the above technical problems, the utility model provides a kind of photoelectric performance testing device of gyroscope with simple structure and convenient operation.

[0005] The technical solution for solving the above technical problems is: a kind of photoelectric performance testing device of gyroscope, including base, positioning module, adjustment test module and detection system, the positioning module, adjustment test module are oppositely arranged and slidably installed on the base, the measured gyroscope is fixed on the positioning module, the adjustment test module includes test support, adjustment swing arm, stepper motor and encoder, the test support is slidably arranged on the base, the stepper motor is fixedly installed on the test support, the front end output shaft of the stepper motor is fixedly connected with the rear end of the adjustment swing arm, the front end of the adjustment swing arm is connected with the light barrier of the measured gyroscope in the form of crank thin wall interference contact, to realize synchronous rotation of the stepper motor and the light barrier, the rear end output shaft of the stepper motor is connected with the encoder; the detection system is located on one side of the base, and the detection system is electrically connected with the measured gyroscope and the encoder.

[0006] The above-mentioned photoelectric performance testing device of gyroscope, the base includes a bottom plate and a guide rail fixedly arranged on the bottom plate.

[0007] The photoelectric performance testing device of the gyroscope, the positioning module comprises a gyroscope support and a first guide rail base, the first guide rail base is slidably arranged on a guide rail, the gyroscope support is fixed on the first guide rail base, a groove with an L-shaped cross section is formed on the gyroscope support, two positioning surfaces of the groove are used for positioning the tested gyroscope in mechanical zero position, and the tested gyroscope is fastened through a screw.

[0008] The photoelectric performance testing device of the gyroscope, a second guide rail base is arranged below the testing support, the second guide rail base is slidably arranged on a guide rail, and the testing support is fixed on the second guide rail base.

[0009] The photoelectric performance testing device of the gyroscope, an opening angle W° is formed at the front end of the adjusting swing arm, so that the front end of the adjusting swing arm is in contact with the light barrier, and the front end of the adjusting swing arm has an interference amount N mm with the diameter of the light barrier; the middle part of the adjusting swing arm is recessed to form a thin-walled structure, so that the front end of the adjusting swing arm is in contact with the light barrier and is bent and deformed to exert a radial pressure on the light barrier.

[0010] The photoelectric performance testing device of the gyroscope, the rear end output shaft of the stepping motor is connected with the encoder through a shaft coupling.

[0011] The photoelectric performance testing device of the gyroscope, the testing system comprises a data processing and control module, a driving module, a data acquisition module and a display module, the encoder and the gyroscope are connected with the input end of the data acquisition module, the output end of the data acquisition module is connected with the data processing and control module, the display module is connected with the data processing and control module, and the data processing and control module is connected with the stepping motor through the driving module.

[0012] The photoelectric performance testing device of the gyroscope has the advantages that:

[0013] 1. The positioning module can be replaced to fix gyroscope with different sizes, and the adjusting swing arm with different specifications can be replaced to adapt to light barriers with different sizes, so that the purpose of modular measurement and rapid production change is achieved.

[0014] 2. The tested gyroscope is fixed on the positioning module, the adjusting swing arm of the testing module is used for fixing the light barrier of the gyroscope in a contact mode, the stepping motor drives the adjusting swing arm to realize synchronous rotation of the light barrier, and then the photoelectric signals of the encoder and the gyroscope are used to realize accurate measurement of the opening angle and the compensation angle of the gyroscope, so that the device has the advantages of automatic detection, high detection precision, low cost, modular design, rapid production change and the like. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The photoelectric performance testing device of the gyroscope has the advantages that:

[0016] Figure 2Structure diagram of base.

[0017] Figure 3 Structure diagram of positioning module.

[0018] Figure 4 Structure diagram of adjustment test module.

[0019] Figure 5 Structure diagram of adjustment swing arm.

[0020] Figure 6 Structure block diagram of detection system. DETAILED DESCRIPTION

[0021] The utility model will be further explained in connection with the drawings and embodiments.

[0022] As Figures 1-6 shown, an optoelectronic performance testing device of a gyroscope comprises a base 1, a positioning module 2, an adjustment test module 3 and a detection system 4, the positioning module 2 and the adjustment test module 3 are oppositely arranged and slidably installed on the base 1, a measured gyroscope 5 is fixed on the positioning module 2, the adjustment test module 3 comprises a test support 301, an adjustment swing arm 303, a stepping motor 304 and an encoder 305, the test support 301 is slidably arranged on the base 1, the stepping motor 304 is fixedly installed on the test support 301, the front end output shaft of the stepping motor 304 is fixedly connected with the rear end of the adjustment swing arm 303 through a set screw 307, the front end of the adjustment swing arm 303 is connected with the light barrier 204 of the measured gyroscope 5 in a way of crank thin wall interference contact, realizing synchronous rotation of the stepping motor 304 and the light barrier 204, and the rear end output shaft of the stepping motor 304 is connected with the encoder 305; the detection system 4 is located on one side of the base 1, and the detection system 4 is electrically connected with the measured gyroscope 5 and the encoder 305.

[0023] The base 1 comprises a bottom plate 101 and a guide rail 102 fixedly arranged on the bottom plate 101, and a screw hole matrix is processed on the bottom plate 101 in a fixed rule, and the guide rail 102 is fixed.

[0024] The positioning module 2 comprises a gyroscope support 201 and a first guide rail seat 202, the first guide rail seat 202 is slidably arranged on the guide rail 102, the gyroscope support 201 is fixed on the first guide rail seat 202 through a fixing screw 203, an L-shaped groove is formed on the gyroscope support 201, the two positioning surfaces A and B of the groove are used for positioning the mechanical zero position of the measured gyroscope 5, and the measured gyroscope 5 is fastened through a screw 205. When it is needed to test gyros of the same type but different sizes, the corresponding positioning module 2 can be replaced to fix gyros of different sizes.

[0025] The second guide rail base 302 is slidably arranged on the guide rail 102, and the test support 301 is fixed on the second guide rail base 302 through the screw 308.

[0026] The opening angle W° of the front end F of the adjusting swing arm 303 is adjusted so that the front end of the adjusting swing arm 303 is in contact with the light barrier 204, the diameter of the front end of the adjusting swing arm 303 and the diameter of the light barrier 204 have an interference amount of N mm, and the middle part E of the adjusting swing arm 303 is recessed to form a thin-walled structure. When the adjusting swing arm 303 is in contact with the light barrier 204, the E part of the adjusting swing arm 303 is bent and deformed due to the existence of the diameter interference amount, and a certain radial pressure is applied to the light barrier 204, which can drive the light barrier 204 to move synchronously, thereby completing the rotation of the light barrier 204 in the gyro photoelectric test process and ensuring the accuracy of the rotation angle in the test process. Replacing the adjusting swing arm 303 of different specifications can adapt to light barriers 204 of different sizes to achieve the purpose of modular measurement and rapid production change.

[0027] The rear end output shaft of the stepping motor 304 is connected to the encoder 305 through the shaft coupling 306 to realize real-time measurement of the rotation angle during the test process.

[0028] The test system includes a data processing and control module, a driving module, a data acquisition module, and a display module. The encoder 305, the gyroscope, and the input end of the data acquisition module are connected. The output end of the data acquisition module is connected to the data processing and control module. The display module is connected to the data processing and control module. The data processing and control module is connected to the stepping motor 304 through the driving module.

[0029] The test system provides an interface for users to input test condition requirements and manage test data and user permissions. Users input data such as number, angle requirement, and gyroscope type so that the test system can automatically test according to the requirements.

[0030] The data processing and control module controls the movement of the light barrier through the driving module to control the movement speed of the light barrier, so as to realize the test speed requirement and the measurement repeatability purpose.

[0031] The data acquisition module is used for dynamically collecting the encoder 305 and photoelectric detection data during the test process and correctly transmitting them to the data processing and control module through the interface.

[0032] The data processing and control module processes the collected data of the measured gyroscope 5 online, then dynamically displays and stores them in a certain format, displays them in the form of graphics through the display module, and calculates the test results to obtain the opening angle, compensation angle, photoelectric current, and dark current of the tested gyroscope, which are used for overall performance evaluation of the photoelectric performance of the gyroscope.

[0033] A photoelectric performance testing method of a gyroscope, comprising the following steps:

[0034] Step one: turn on the power of the photoelectric performance testing device, initialize and self-check the photoelectric performance testing device;

[0035] Step two: select the model of the tested gyroscope;

[0036] Step three: position the tested gyroscope 5 at the mechanical zero position through the two positioning surfaces of the groove on the gyroscope support 201, and fasten the tested gyroscope 5 on the gyroscope support 201 through screws;

[0037] Step four: ensure that the adjusting swing arm 303 is at the mechanical zero position, push the adjusting test module 3 to move along the guide rail 102, so that the adjusting swing arm 303 contacts with the light barrier 204; due to the interference contact design between the adjusting swing arm 303 and the light barrier 204, the adjusting swing arm 303 is deformed at the E position, and a certain radial pressure is applied to the light barrier 204, which can drive the light barrier 204 to move synchronously;

[0038] Step five: the testing system works, the driving module drives the stepper motor 304 to drive the light barrier 204 to rotate at an angle, the encoder 305 feeds back the rotation angle of the light barrier 204 to the data acquisition module, and the data acquisition module sends the data to the data processing and control module; at the same time, the testing system synchronously measures the photoelectric signal of the gyroscope, and real-time feedbacks the relationship between the photoelectric signal of the gyroscope and the rotation angle of the light barrier 204;

[0039] Step six: the testing system calculates the opening angle and compensation angle of the tested gyroscope 5, and evaluates the overall performance of the photoelectric performance of the gyroscope;

[0040] Step seven: process the test results to automatically form a detection report.

Claims

1. A device for optoelectronic performance testing of a gyroscope, characterized in that: The utility model relates to a kind of gyroscope test device, including base, positioning module, adjustment test module and detection system, the positioning module, adjustment test module are relatively arranged and can be slidably installed on base, measured gyroscope is fixed on positioning module, the adjustment test module includes test support, adjustment swing arm, stepper motor and encoder, the test support can be slidably arranged on base, stepper motor is fixedly installed on test support, the front end output shaft of stepper motor is fixedly connected with adjustment swing arm rear end, adjustment swing arm front end is connected with the light barrier of measured gyroscope using the way of crank thin wall interference contact, realizes stepper motor and the synchronous rotation of light barrier, the rear end output shaft of stepper motor is connected with encoder;The detection system is located in the side of base, and detection system is electrically connected with measured gyroscope, encoder.

2. The photoelectric performance testing device of the gyroscope according to claim 1, characterized in that: The base includes a bottom plate and a guide rail fixedly arranged on the bottom plate.

3. The photoelectric performance testing device of the gyroscope according to claim 2, characterized in that: The positioning module includes a gyroscope support and a first guide rail seat, the first guide rail seat is slidably arranged on the guide rail, and the gyroscope support is fixed on the first guide rail seat.

4. The photoelectric performance testing device of the gyroscope according to claim 2, characterized in that: The test support is provided with a second guide rail seat below, the second guide rail seat is slidably arranged on the guide rail, and the test support is fixed on the second guide rail seat.

5. The photoelectric performance testing device of the gyroscope according to claim 2, characterized in that: The adjustment swing arm is provided with an opening at the front end, and the opening has an angle W°, so that the front end of the adjustment swing arm is in contact with the light barrier.

6. The photoelectric performance testing device of the gyroscope according to claim 2, characterized in that: The rear end output shaft of the stepper motor is connected with the encoder through a coupling.

7. The photoelectric performance testing device of the gyroscope according to claim 2, characterized in that: The detection system includes a data processing and control module, a driving module, a data acquisition module and a display module, the encoder and the gyroscope are connected to the input end of the data acquisition module, the output end of the data acquisition module is connected to the data processing and control module, the display module is connected to the data processing and control module, and the data processing and control module is connected to the stepper motor through the driving module.

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