Oscillation Suppression in the Sense Mode of a High-Q MEMS Gyroscope Using a Simplified Closed-Loop Control Method
The oscillation of the sense mode of the micro-machined Coriolis vibratory gyroscope (MCVG) with high quality factor (Q) is analyzed in this study and the corresponding force feedback control scheme is presented to suppress this oscillation. The controller consists of integrator and some filters, in...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-07-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/18/8/2443 |
| _version_ | 1811263056781508608 |
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| author | Qiang Shen Xinpeng Wang Yixuan Wu Jianbing Xie |
| author_facet | Qiang Shen Xinpeng Wang Yixuan Wu Jianbing Xie |
| author_sort | Qiang Shen |
| collection | DOAJ |
| description | The oscillation of the sense mode of the micro-machined Coriolis vibratory gyroscope (MCVG) with high quality factor (Q) is analyzed in this study and the corresponding force feedback control scheme is presented to suppress this oscillation. The controller consists of integrator and some filters, instead of the common but complicated demodulation and remodulation modules. Compared with using no oscillation suppression scheme, the proposed simplified oscillation suppression control scheme can achieve an improvement of the sense mode of the MCVG. The inband spectrum ripple of the angular rate output are improved from 51.4 dB to 4.23 × 10−4 dB. Correspondingly, these two performance parameters are improved by 370.4 and 186.2 times, which are higher than two orders of magnitude, respectively. Bias stability is improved from 9.72 deg/h to 2.5 deg/h. Test results prove that the proposed control scheme is effective in suppressing the oscillation. |
| first_indexed | 2024-04-12T19:38:00Z |
| format | Article |
| id | doaj.art-9f76dc99c7874e5c87c7527826d62de9 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-12T19:38:00Z |
| publishDate | 2018-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-9f76dc99c7874e5c87c7527826d62de92022-12-22T03:19:10ZengMDPI AGSensors1424-82202018-07-01188244310.3390/s18082443s18082443Oscillation Suppression in the Sense Mode of a High-Q MEMS Gyroscope Using a Simplified Closed-Loop Control MethodQiang Shen0Xinpeng Wang1Yixuan Wu2Jianbing Xie3Research & Development Institute, Northwestern Polytechnical University, Shenzhen 518057, ChinaResearch & Development Institute, Northwestern Polytechnical University, Shenzhen 518057, ChinaResearch & Development Institute, Northwestern Polytechnical University, Shenzhen 518057, ChinaResearch & Development Institute, Northwestern Polytechnical University, Shenzhen 518057, ChinaThe oscillation of the sense mode of the micro-machined Coriolis vibratory gyroscope (MCVG) with high quality factor (Q) is analyzed in this study and the corresponding force feedback control scheme is presented to suppress this oscillation. The controller consists of integrator and some filters, instead of the common but complicated demodulation and remodulation modules. Compared with using no oscillation suppression scheme, the proposed simplified oscillation suppression control scheme can achieve an improvement of the sense mode of the MCVG. The inband spectrum ripple of the angular rate output are improved from 51.4 dB to 4.23 × 10−4 dB. Correspondingly, these two performance parameters are improved by 370.4 and 186.2 times, which are higher than two orders of magnitude, respectively. Bias stability is improved from 9.72 deg/h to 2.5 deg/h. Test results prove that the proposed control scheme is effective in suppressing the oscillation.http://www.mdpi.com/1424-8220/18/8/2443MEMS gyroscopesense-mode oscillation suppressioncontrol circuit |
| spellingShingle | Qiang Shen Xinpeng Wang Yixuan Wu Jianbing Xie Oscillation Suppression in the Sense Mode of a High-Q MEMS Gyroscope Using a Simplified Closed-Loop Control Method Sensors MEMS gyroscope sense-mode oscillation suppression control circuit |
| title | Oscillation Suppression in the Sense Mode of a High-Q MEMS Gyroscope Using a Simplified Closed-Loop Control Method |
| title_full | Oscillation Suppression in the Sense Mode of a High-Q MEMS Gyroscope Using a Simplified Closed-Loop Control Method |
| title_fullStr | Oscillation Suppression in the Sense Mode of a High-Q MEMS Gyroscope Using a Simplified Closed-Loop Control Method |
| title_full_unstemmed | Oscillation Suppression in the Sense Mode of a High-Q MEMS Gyroscope Using a Simplified Closed-Loop Control Method |
| title_short | Oscillation Suppression in the Sense Mode of a High-Q MEMS Gyroscope Using a Simplified Closed-Loop Control Method |
| title_sort | oscillation suppression in the sense mode of a high q mems gyroscope using a simplified closed loop control method |
| topic | MEMS gyroscope sense-mode oscillation suppression control circuit |
| url | http://www.mdpi.com/1424-8220/18/8/2443 |
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