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Digital Acquisition, Storage and Processing System Research for Solid-State Micro-machined Modal Gyroscope

Author: ZhouXiaoLing
Tutor: WuXiaoSheng
School: Shanghai Jiaotong University
Course: Electronics and Communication Engineering
Keywords: Piezoelectricity Micro gyroscope Data acquisition Data storage Digital filtering
CLC: TP274.2
Type: Master's thesis
Year: 2012
Downloads: 26
Quote: 0
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Abstract


Special vibration mode piezoelectric piezoelectric micro solid modal gyroscope to work , it is a different micro- vibration gyro solid-state micro- gyroscope . The gyro based on the Coriolis force effect principle to realize the detection of the rotational angular velocity , by the amount of change of the induced charge on the detector sensing electrode . This study is mainly based on the results of the analysis of piezoelectric micro - solid modal gyroscope higher-order vibration mode simulation research as well as analog detection circuit performance . According to the characteristics of the gyro signal , the gyro signal data acquisition and storage system is designed and implemented . The careful analysis of the characteristics of the signal characteristics of the gyro , designed based on the performance requirements of the system , data acquisition and storage system for gyro system , the system uses TMS320F2812 DSP control platform , using 16-bit AD converter chip AD7656 and 128M × 8Bit the external expansion FLASH chip K9F1G08UOB achieve high-precision mass storage performance . Mainly to complete the preparation of the hardware circuit design and PCB circuit board production , as well as software control program , gyro demodulated signal digitization . After in the TMS320F2812 development platform , MATLAB software combined with CCS compiler software adaptive digital filter design , filter 's overall design concept and the design method is introduced , for the subsequent data processing One line of thought . A further attempt to research done for the digital processing of the gyro signal . Data acquisition and storage system as well as the performance of the adaptive filter validation , through the study of the subject , so that the piezoelectric micro solid modal gyroscope systems research further to determine the feasibility of the system . This article will also follow the gyroscope researchers to provide research data , at the same time , the research content with reference to the role of research and design work for the same type gyroscope .

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