A realization method for fiber optic gyroscope test circuit fpga

Abstract

The invention discloses a realization method for an FPGA used for an optical fiber gyroscope test circuit. Through modularized design, the FPGA achieves the functions of serial port receiving, data smoothing, temperature collecting, data buffering and serial port transmitting. A serial port receiving baud rate, a serial port receiving check bit, data smoothing frequency, the width and depth of buffering FIFO and the baud rate and check bit of data sending are realized through parameter setting in design codes of the FPGA, and after parameter setting is completed, serial port output of optical fiber gyroscopes of different time sequences can be received. The realization method is high in generality and achieves testing for the optical fiber gyroscopes of different output time sequences.

Description

technical field [0001] The invention relates to a method for realizing an FPGA test circuit for an optical fiber gyroscope. Background technique [0002] The fiber optic gyroscope is used to measure the angular rate of the inertial space. One of the output forms of the angular rate data is the serial port form. The baud rate and check digit sent by the fiber optic gyroscope are different under different circumstances, which makes the test work of the fiber optic gyroscope difficult. At the same time, because the fiber optic gyroscope is a temperature-sensitive device, it is necessary to analyze the angular rate data in combination with the temperature data during the test. Therefore, a flexible and general testing method is urgently needed to receive different timing output from the fiber optic gyroscope, and at the same time be able to collect temperature data. . There is no such method in the prior art. Contents of the invention [0003] The purpose of the present inve...

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Problems solved by technology

[0002] The fiber optic gyroscope is used to measure the angular rate of the inertial space. One of the output forms of the angular rate data is the serial port form. The baud rate and check digit sent by the fiber optic gyroscope are different under different circumstances, which makes the test work of the fiber optic gyroscope difficult. At the same time, because the fiber optic gyroscope is a temperature-sensitive device, it is necessary to analyze the angular rate data in combination with the temperature data during the test. Therefore, a flexible and general testing method is urgently needed to receive different timing output from the fiber optic gyroscope, and at the same time be able to collect temperature data.

There is no such method in the prior art

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