Automated testing system and method for index parameters of fiber optic gyro

Abstract

The invention discloses an automated testing system and method for index parameters of a fiber optic gyro, mainly solving the problems of low testing precision, operation complexity, non-visual testing results and low automation degree of the prior art. The method comprises the following implementation processes of: (1) setting parameters of a turntable and a temperature controller; (2) favorablyplacing liquid nitrogen and respectively acquiring static data and dynamic data of the fiber optic gyro by taking 20 seconds as a cycle; (3) cooling to -30 DEG C and interrupting a power supply for 5min fro the fiber optic gyro; (3) restarting a test, processing data acquired in a whole testing process, and displaying and saving the processed data in the form of images; and (4) fitting the data of the fiber optic gyro and displaying a fitting result. According to the invention, precise testing data of the fiber optic gyro can be obtained, equipment is simple to operate and is feasible, the complexity in manual operation is reduced, the testing time is shortened, the high-automation testing system is realized, and the system and the method disclosed by the invention can be applied to the aerospace field and aircraft control systems.

Description

technical field [0001] The invention belongs to the technical field of data collection and testing, in particular to an automatic testing system and method for fiber optic gyroscope index parameters, which can be used in the aerospace field and aircraft control systems. Background technique [0002] Fiber optic gyro has a series of advantages such as high precision, strong anti-interference ability, and short warm-up time. It has been widely used in aerospace and other fields. It determines the accuracy of aircraft navigation and attitude control, and its quality directly affects Reliability of aircraft control systems. Therefore, the performance parameter test of fiber optic gyroscope occupies a pivotal position for fiber optic gyroscope and becomes one of the most basic technologies in this field. Therefore, a set of high-precision test system becomes an indispensable equipment for fiber optic gyroscope parameter testing. [0003] At present, there are some fiber optic gy...

AI Technical Summary

Problems solved by technology

[0003] At present, there are some fiber optic gyroscope parameter acquisition and testing systems, such as USB-based fiber optic gyroscope test system, RS-232-based fiber optic gyroscope test system, etc. Although these test systems can complete the basic parameter testing of fiber optic gyroscope, there are some Inadequacies, such as the RS-232-based fiber optic gyroscope test system, although the connection is simple, but the data transmission rate is slow, making it a bottleneck for high-speed data transmission; although the USB-based fiber optic gyroscope test system can simultaneously solve the problem of transmission rate, unit time, etc. The problem of data throughput, but its hardware circuit is relatively complex, and the accuracy of test data is low

In addition, there is another shortcoming in these two test systems: the degree of automation is low, the temperature box and the turntable must be controlled manually, and the recording, processing and analysis of test data are also done manually, which takes a lot of time to make data The analysis makes the operation steps more complicated during the test, prolongs the test time, and the test results are not intuitive

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