Miniaturized fiber-optic gyroscope based on time division multiplexing
A fiber optic gyroscope and time-division multiplexing technology, which is applied to Sagnac effect gyroscopes, gyroscopes/steering sensing equipment, and measuring devices, can solve the problems of large circuit board size, high cost, and high power consumption, and achieve The effect of small size, low cost and low power consumption
Pending Publication Date: 2022-01-25
上海傲世控制科技股份有限公司
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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.
Method used
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Embodiment 1
[0025] Such as figure 1 As shown, this embodiment provides a miniaturized fiber optic gyroscope based on time division multiplexing, including a light source 2, a coupling unit, a plurality of detection units, and a first multi-channel switch 12, a preamplifier 13, and an AD converter connected in sequence 14, signal processor 15, DA converter 16, post-amplifier 17 and the second multi-channel switch 18, the first multi-channel switch 12 also connects a plurality of detection units and signal processor 15 respectively, the second multi-channel switch 18 also Respectively connect a plurality of detection units and the signal processor 15, and the coupling unit is respectively connected with a plurality of detection units;
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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...
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Login to View More IPC IPC(8): G01C19/72
CPCG01C19/721
Inventor 李阳吴海林白亮虞翔杨涛施广飞俞岭
Owner 上海傲世控制科技股份有限公司