Title :
A digital control system for micro-comb gyroscope
Author :
Shaohua, Niu ; Shiqiao, Gao ; Haipeng, Liu
Author_Institution :
Sch. of Mechatronical Eng., Beijing Inst. of Technol., Beijing, China
Abstract :
Vibratory gyroscope exploit a coriolis force coupling between two degree of freedom internal to the sensor for detection of the sensor´s angular rotation rate. The peripheral circuit is the key part to realize the function of the gyro system. The peripheral circuit traditionally adopts pure analog circuit. However, the analog circuit has some inherent shortcomings. These limit the accuracy of the gyro. In this paper, a digital control system for micro-comb is introduced. According to testing the gyro performance is much improved by means of the digital control system.
Keywords :
digital control; gyroscopes; coriolis force coupling; digital control system; microcomb gyroscope; peripheral circuit; sensor angular rotation rate; two degree of freedom; vibratory gyroscope; Analog circuits; Angular velocity; Circuit testing; Control systems; Digital control; Force measurement; Gyroscopes; Micromechanical devices; Sensor systems; System testing; C/V conversion; DSP; MEMS; angular velocity sensor; capacitive sensor; micro-comb gyroscope; self-exited drive; weak signal detection;
Conference_Titel :
Electronic Measurement & Instruments, 2009. ICEMI '09. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3863-1
Electronic_ISBN :
978-1-4244-3864-8
DOI :
10.1109/ICEMI.2009.5274461
