2019年
AUTOMATED FREQUENCY AND QUALITY FACTOR MISMATCH COMPENSATION METHOD FOR MEMS RATE INTEGRATING GYROSCOPE
2019 20TH INTERNATIONAL CONFERENCE ON SOLID-STATE SENSORS, ACTUATORS AND MICROSYSTEMS & EUROSENSORS XXXIII (TRANSDUCERS & EUROSENSORS XXXIII)
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- 開始ページ
- 1831
- 終了ページ
- 1834
- 記述言語
- 英語
- 掲載種別
- 研究論文(国際会議プロシーディングス)
- 出版者・発行元
- IEEE
This paper reports an automated mismatch compensation method for a rate integrating gyroscope (RIG). The eigenmodes of an ideal degenerated resonator are clockwise (CW) and counterclockwise (CCW) modes, which are independent each other. However, the frequency and Q-factor mismatches of the resonator, which are generally unavoidable because of fabrication imperfectness, entangles these eigenmodes. This cross-coupling effect between CW and CCW modes deteriorate the linearity and causes the angle locking [1]. Thus, in this paper, a method to detects the cross-coupling terms (i.e. the frequency and Q mismatches) and tunes the driving signals to compensate these mismatches was proposed. The proposed method was experimentally confirmed using an electromagnetic ring resonator. The cross-coupling terms, which come from the frequency and Q-factor mismatches, were reduced to be 3 orders of magnitude by this method.
- リンク情報
- ID情報
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- Web of Science ID : WOS:000539487000463