Oscillation Control Algorithms for Resonant Sensors with Applications to Vibratory Gyroscopes
We present two oscillation control algorithms for resonant sensors such as vibratory gyroscopes. One control algorithm tracks the resonant frequency of the resonator and the other algorithm tunes it to the specified resonant frequency by altering the resonator dynamics. Both algorithms maintain the...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2009-07-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/9/8/5952/ |
| _version_ | 1798041732211802112 |
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| author | Sung Kyung Hong Haedong Kim Chin-Woo Tan Sungsu Park |
| author_facet | Sung Kyung Hong Haedong Kim Chin-Woo Tan Sungsu Park |
| author_sort | Sung Kyung Hong |
| collection | DOAJ |
| description | We present two oscillation control algorithms for resonant sensors such as vibratory gyroscopes. One control algorithm tracks the resonant frequency of the resonator and the other algorithm tunes it to the specified resonant frequency by altering the resonator dynamics. Both algorithms maintain the specified amplitude of oscillations. The stability of each of the control systems is analyzed using the averaging method, and quantitative guidelines are given for selecting the control gains needed to achieve stability. The effects of displacement measurement noise on the accuracy of tracking and estimation of the resonant frequency are also analyzed. The proposed control algorithms are applied to two important problems in a vibratory gyroscope. The first is the leading-following resonator problem in the drive axis of MEMS dual-mass vibratory gyroscope where there is no mechanical linkage between the two proof-masses and the second is the on-line modal frequency matching problem in a general vibratory gyroscope. Simulation results demonstrate that the proposed control algorithms are effective. They ensure the proof-masses to oscillate in an anti-phase manner with the same resonant frequency and oscillation amplitude in a dual-mass gyroscope, and two modal frequencies to match in a general vibratory gyroscope. |
| first_indexed | 2024-04-11T22:25:37Z |
| format | Article |
| id | doaj.art-7f7af4279d8d48a6a37a062ff99e3c60 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T22:25:37Z |
| publishDate | 2009-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-7f7af4279d8d48a6a37a062ff99e3c602022-12-22T03:59:44ZengMDPI AGSensors1424-82202009-07-01985952596710.3390/s90805952Oscillation Control Algorithms for Resonant Sensors with Applications to Vibratory GyroscopesSung Kyung HongHaedong KimChin-Woo TanSungsu ParkWe present two oscillation control algorithms for resonant sensors such as vibratory gyroscopes. One control algorithm tracks the resonant frequency of the resonator and the other algorithm tunes it to the specified resonant frequency by altering the resonator dynamics. Both algorithms maintain the specified amplitude of oscillations. The stability of each of the control systems is analyzed using the averaging method, and quantitative guidelines are given for selecting the control gains needed to achieve stability. The effects of displacement measurement noise on the accuracy of tracking and estimation of the resonant frequency are also analyzed. The proposed control algorithms are applied to two important problems in a vibratory gyroscope. The first is the leading-following resonator problem in the drive axis of MEMS dual-mass vibratory gyroscope where there is no mechanical linkage between the two proof-masses and the second is the on-line modal frequency matching problem in a general vibratory gyroscope. Simulation results demonstrate that the proposed control algorithms are effective. They ensure the proof-masses to oscillate in an anti-phase manner with the same resonant frequency and oscillation amplitude in a dual-mass gyroscope, and two modal frequencies to match in a general vibratory gyroscope.http://www.mdpi.com/1424-8220/9/8/5952/oscillation controlresonant sensorvibratory gyroscopeaveraging methodautomatic gain controlphase-locked loop |
| spellingShingle | Sung Kyung Hong Haedong Kim Chin-Woo Tan Sungsu Park Oscillation Control Algorithms for Resonant Sensors with Applications to Vibratory Gyroscopes Sensors oscillation control resonant sensor vibratory gyroscope averaging method automatic gain control phase-locked loop |
| title | Oscillation Control Algorithms for Resonant Sensors with Applications to Vibratory Gyroscopes |
| title_full | Oscillation Control Algorithms for Resonant Sensors with Applications to Vibratory Gyroscopes |
| title_fullStr | Oscillation Control Algorithms for Resonant Sensors with Applications to Vibratory Gyroscopes |
| title_full_unstemmed | Oscillation Control Algorithms for Resonant Sensors with Applications to Vibratory Gyroscopes |
| title_short | Oscillation Control Algorithms for Resonant Sensors with Applications to Vibratory Gyroscopes |
| title_sort | oscillation control algorithms for resonant sensors with applications to vibratory gyroscopes |
| topic | oscillation control resonant sensor vibratory gyroscope averaging method automatic gain control phase-locked loop |
| url | http://www.mdpi.com/1424-8220/9/8/5952/ |
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