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Sensors 2014, 14(3), 5254-5277; doi:10.3390/s140305254
Article

Research on the Signal Process of a Bell-Shaped Vibratory Angular Rate Gyro

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Received: 16 December 2013; in revised form: 5 February 2014 / Accepted: 7 February 2014 / Published: 13 March 2014
(This article belongs to the Section Physical Sensors)
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Abstract: A bell-shaped vibratory angular rate gyro, which is inspired by the Chinese traditional bell, is a kind of axisymmetric shell resonator gyroscope. Its sensitive element is a vibratory-like Chinese traditional bell, using a piezoelectric element on the wall of the vibrator to detect the standing wave’s precession to solve the input angular rate. This work mainly studies the circuit system of a bell-shaped vibratory angular rate gyro. It discusses the process of circuit system design, analysis and experiment, in detail, providing the foundation to develop a bell-shaped vibratory angular rate gyro. Since the bell-shaped resonator’s curved structure has the characteristics of large noise in the piezoelectric signal and large harmonics, this paper analyzes its working and signal detection method, then gives the whole plan of the circuit system, including the drive module, the detection module and the control loop. It also studies every part of the whole system, gives a detailed design and analysis process and proves part of the circuit system using digital simulation. At the end of the article, the test result of the circuit system shows that it can remove the disadvantages of the curved structure having large noise in the piezoelectric signal and large harmonics and is more effective at solving the input angular rate.
Keywords: bell-shaped vibratory angular rate gyro; Coriolis vibrating gyro; bell-shaped vibratory angular rate gyro circuit system; axisymmetric shell resonator gyroscopes; signal process of bell-shaped vibratory angular rate gyro bell-shaped vibratory angular rate gyro; Coriolis vibrating gyro; bell-shaped vibratory angular rate gyro circuit system; axisymmetric shell resonator gyroscopes; signal process of bell-shaped vibratory angular rate gyro
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Su, Z.; Liu, N.; Li, Q.; Fu, M.; Liu, H.; Fan, J. Research on the Signal Process of a Bell-Shaped Vibratory Angular Rate Gyro. Sensors 2014, 14, 5254-5277.

AMA Style

Su Z, Liu N, Li Q, Fu M, Liu H, Fan J. Research on the Signal Process of a Bell-Shaped Vibratory Angular Rate Gyro. Sensors. 2014; 14(3):5254-5277.

Chicago/Turabian Style

Su, Zhong; Liu, Ning; Li, Qing; Fu, Mengyin; Liu, Hong; Fan, Junfang. 2014. "Research on the Signal Process of a Bell-Shaped Vibratory Angular Rate Gyro." Sensors 14, no. 3: 5254-5277.



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