Miniaturized fiber-optic gyroscope based on time division multiplexing

Abstract

The invention relates to a miniaturized fiber-optic gyroscope based on time division multiplexing, which comprises a light source, a coupling unit, a plurality of detection units, and a first multi-channel switch, a pre-amplifier, an AD converter, a signal processor, a DA converter, a post-amplifier and a second multi-channel switch which are connected in sequence, the first multi-channel switch is further connected with the multiple detection units and the signal processor, the second multi-channel switch is further connected with the multiple detection units and the signal processor, and the coupling unit is connected with the multiple detection units. The signal processor controls the first multi-channel switch and the second multi-channel switch based on a time division multiplexing method, and the detection unit is switched on or switched off to perform angular frequency detection. Compared with the prior art, the miniaturized fiber-optic gyroscope has the advantages of small size, low cost, low power consumption, capability of meeting application environments with very harsh requirements on the size of the fiber-optic gyroscope and the like.

Description

technical field [0001] The invention relates to the field of fiber optic gyroscopes, in particular to a miniaturized fiber optic gyroscope based on time division multiplexing. Background technique [0002] Gyroscope is an angular rate sensor, a device sensitive to angular motion in relative inertial space, and is currently the main sensor used to determine the spatial motion attitude of moving bodies. It can be applied to various fields of sea, land, air and sky. A traditional dual-axis fiber optic gyroscope needs to be equipped with a high-speed AD chip and a high-speed DA chip for each axis, resulting in a large circuit board size, high power consumption, and high cost of the fiber optic gyroscope. The fiber optic gyroscope is generally installed on a rotating carrier, which has very strict requirements on volume and power consumption. Contents of the invention [0003] The object of the present invention is to provide a miniaturized optical fiber gyroscope based on ti...

AI Technical Summary

Problems solved by technology

The traditional dual-axis fiber optic gyroscope needs to be equipped with a high-speed AD chip and a high-speed DA chip for each axis, resulting in a large circuit board size, high power consumption and high cost of the fiber optic gyroscope.

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