A three-float gyroscope calibration test system

Abstract

A three-floating gyro calibration test system is used for providing AC and DC power for gyro and various circuits and completing debugging, testing and calibration of the three-floating gyro, and comprises a test device and a digital universal meter. The test device comprises an AC power supply box, a test box, a magnetic levitation measurement and control box, a preamplifier, a gyro tool, a first digital universal meter, a second universal meter and a test data acquisition analyzer. The control of a gyro float in the spatial five degrees of freedom is realized by the magnetic levitation control circuit. A gyro temperature control loop is a premise of ensuring the normal work of the gyro in the set temperature point, a platinum resistor is taken as a sensitive element and a heating resistor is regarded as an actuator for heating the gyro. A force feedback loop and the gyro form a feedback system for testing gyro and calibrating each error factor. The gyro tool is controlled at a stable temperature point by an environmental temperature control circuit to provide a good temperature environment for the work of the gyro.

Description

technical field [0001] The invention relates to a three-float gyroscope calibration test system, in particular to a single-degree-of-freedom three-float gyroscope calibration test system, which can be used for debugging, testing and calibration of single-degree-of-freedom electromechanical liquid floats and three-float gyroscopes. When the gyroscope is subjected to a mechanical environment test, this device can ensure the gyroscope works normally, and belongs to the field of gyroscope testing. Background technique [0002] The development of domestic single-degree-of-freedom electromechanical gyroscopes has experienced hydrostatic air flotation, hydrostatic fluid flotation, liquid flotation, and triple flotation, and the circuits and calibration test systems supporting gyro tend to become more and more complex. For the gyroscope supported by hydrostatic fluid, the calibration test system provides few types of AC power supply, and the supporting circuit for the gyroscope is o...

AI Technical Summary

Problems solved by technology

The calibration test system of the above gyroscope has a single function, and the accuracy requirements are relatively low, so it is easier to implement

In addition, limited by the development of domestic analog electronic chips, in the past, the gyro force feedback loop and temperature control loop mostly used domestically produced secondary integrated chips, resulting in large circuit size, high cost, poor versatility, and difficult maintenance.

In the past, the design of the correction link of the gyro force feedback loop mainly considered the stability of the system, and did not emphasize the suppression of system noise

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