Research Article
Deflection Angle Detection of the Rotor and Signal Processing for a Novel Rotational Gyroscope
@INPROCEEDINGS{10.1007/978-3-030-00557-3_23, author={Dianzhong Chen and Zhongzhao Zhang}, title={Deflection Angle Detection of the Rotor and Signal Processing for a Novel Rotational Gyroscope}, proceedings={Machine Learning and Intelligent Communications. Third International Conference, MLICOM 2018, Hangzhou, China, July 6-8, 2018, Proceedings}, proceedings_a={MLICOM}, year={2018}, month={10}, keywords={Rotational gyroscope Differential capacitance detection pair}, doi={10.1007/978-3-030-00557-3_23} }- Dianzhong Chen
Zhongzhao Zhang
Year: 2018
Deflection Angle Detection of the Rotor and Signal Processing for a Novel Rotational Gyroscope
MLICOM
Springer
DOI: 10.1007/978-3-030-00557-3_23
Abstract
Differential capacitance detection, a common high resolution proof mass displacement detection scheme, is adopted in the gyroscope to measure the rotor deflection angle by installing an electrode with four poles under the rotor disk, which forms four detection capacitors and opposite ones form a differential capacitance detection pair. Theoretical inference explains the approximately proportional relationship between the capacitance difference and the rotor deflection angle. Simulation in Ansys Maxwell verifies the inference and confirms the differential capacitance detection range of the rotor deflection angle to 0–1°, limited by linearity. A signal processing system is constructed, obtaining a DC output voltage proportional to the measured input angular speed. Experiment shows the fabricated gyroscope with the designed differential capacitance detection pairs exhibits excellent performance with the resolution and the bias stability of 0.1 °/s and 0.5 °/h, respectively.