Tunable gyroscope chip for Internet of Things spatial orientation control system

Abstract

The invention discloses a tunable gyroscope chip for an Internet of Things spatial orientation control system. The tunable gyroscope chip comprises a first Y branch, wherein two output ports of the first Y branch are symmetrically and sequentially connected with a first embedded type polarization-maintaining optical fiber, a second embedded type polarization-maintaining optical fiber and a secondY branch respectively, which are used for conducting an optical signal and stabilizing a polarization state; the tunable gyroscope chip comprises two tunable surface plasmon couplers which are used for tuning a resonant cavity coupling ratio and realizing single-polarization transmission of the optical signal in a resonant cavity; the two adjacent oppositely-arranged tunable surface plasmon couplers form the resonant cavity through a common embedded type bent polarization-maintaining optical fiber. According to the tunable gyroscope chip for the Internet of Things spatial orientation control system, disclosed by the invention, polarization noises in a gyroscope system can be effectively inhibited, the gyroscope sensitivity is improved and the miniaturization is realized; the polarization noises are reduced, gyroscope chips with a higher integration degree are manufactured and an Internet of Things control system is optimized.

Description

technical field [0001] The invention relates to a gyro chip, in particular to a tunable gyro chip. Background technique [0002] The Internet of Things is the internet of connected things. This has two meanings: first, the core and foundation of the Internet of Things is still the Internet, which is an extended and expanded network based on the Internet; Exchange and communication, that is, things are connected, the most important thing in the Internet of Things is the control system, especially the gyroscope and other devices used to sense the operating status of the item, which is critical to the control system of the entire Internet of Things. In the instrument, the resonant optical gyroscope is one of the important development directions in the gyroscope field. It has the advantages of anti-electromagnetic interference and high sensitivity, and has broad application prospects in high-precision inertial guidance systems. The optical resonant cavity is the core component ...

AI Technical Summary

Problems solved by technology

This has two meanings: first, the core and foundation of the Internet of Things is still the Internet, which is an extended and expanded network based on the Internet; Exchange and communication, that is, things are connected, the most important thing in the Internet of Things is the control system, especially the gyroscope and other devices used to sense the operating status of the item, which is critical to the control system of the entire Internet of Things. In the instrument, the resonant optical gyroscope is one of the important development directions in the gyroscope field. It has the advantages of anti-electromagnetic interference and high sensitivity, and has broad application prospects in high-precision inertial guidance systems. The optical resonant cavity is the core component of the resonant optical gyroscope. The performance of the component directly determines the accuracy and stability of the gyroscope. The fiber resonator has the advantages of low loss and high definition, but the non-solid state characteristics seriously affect the stability of the gyroscope performance, and there is polarization noise. The integrated optical waveguide The resonator has the advantages of miniaturization, all solid-state and low cost. The loss of the integrated optical waveguide is large, which seriously limits the improvement of the sensitivity of the integrated optical waveguide resonator gyro, and there is polarization noise, which also seriously limits the miniaturization of the gyro system. Gyro chips with reduced polarization noise and higher integration, specifically, gyro chips can be used in automatic navigation, positioning and orientation, vehicle control of ground vehicles, attitude control of agricultural aircraft, seeding, spraying pesticides, and underground engineering maintenance. Positioning tools and rescue tools for damaged power lines, pipelines and communication optical cables, used for positioning and path surveying in geodesy, mineral exploration, oil exploration, oil drilling guidance, tunnel construction, etc.

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