Microgyroscope driving and detecting device and method based on digitization embedded system

Abstract

The invention provides a microgyroscope driving and detecting device and method based on a digitization embedded system. The device comprises an embedded data unit, a simulation circuit unit and a wireless module. The embedded data unit is connected with the simulation circuit unit, the simulation circuit unit is connected with a bulk-acoustic-wave solid fluctuation microgyroscope, and the wireless module is integrated on the embedded data unit; a driving signal is sent to the simulation circuit unit through the embedded data unit and then sent to the bulk-acoustic-wave solid fluctuation microgyroscope, a signal of the bulk-acoustic-wave solid fluctuation microgyroscope is output to the simulation circuit unit, and then is preprocessed through the simulation circuit unit and output to the embedded data unit, and signal processing is carried out; the wireless module is responsible for outputting a control instruction between the device and the outside and a final signal. By means of the microgyroscope driving and detecting device and method based on the digitization embedded system, a gyroscope signal can be effectively detected and output, the accuracy is high, and the stability is good.

Description

technical field [0001] The invention relates to the technical field of micro-electro-mechanical systems, in particular to a micro-gyro drive and detection device and method based on a digital embedded system. Background technique [0002] As a carrier angular velocity sensitive inertial sensor, the gyroscope is the core device in the inertial measurement unit (IMU), and plays a very important role in attitude control, navigation and positioning in traditional industrial fields such as aviation, aerospace, and ships. MEMS micro-gyroscopes have the advantages of small size and mass, low power consumption, low cost, good environmental adaptability, and high integration, which not only partially replace traditional gyroscopes in traditional industrial fields such as aviation, aerospace, and ships, but also can be used in the automotive industry. , industrial automation control, consumer electronics attitude stability control and other market areas are expanding at an alarming ra...

AI Technical Summary

Problems solved by technology

[0005] The driving and detection circuit of the bulk acoustic wave solid wave micro-gyroscope is an important part of the gyroscope system. At present, the driving circuit of the domestic gyroscope is mostly an analog circuit, and the single-closed-loop AGC method with stable control amplitude is often used. It has large noise and cannot Defects such as self-calibration and large demodulation errors, based on the digital closed-loop circuit system can complete the frequency phase and amplitude stabilization that cannot be achieved by analog circuits, effectively reduce pure analog circuit errors, and complete system self-stabilization and demodulation of digital chip signals

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