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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Weihui Wang Zhang Luo Ming Wen Qiang Dan Sheng Liu |
| Copyright Year | 2014 |
| Description | Author affiliation: Cross-disciplinary Inst. of Eng. Sci., Wuhan Univ., Wuhan, China (Sheng Liu) || Sch. of Mech. Sci. & Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China (Weihui Wang; Zhang Luo; Ming Wen; Qiang Dan) |
| Abstract | The thermal effect on performance of micromachined hemispherical vibratory gyroscope subjected to environment temperature change was investigated comprehensively in this paper. Firstly, the structure and principle of typical micromachined hemispherical gyroscope were introduced, and its advantages over other micromachined gyroscopes were demonstrated Taking a typical micromachined hemispherical gyroscope as a model, then, the analysis of modes was implemented under varying environment temperature ranging from -40°C to 120°C, and the relation between resonant frequency shift and temperature change was given based on the reference temperature of 20°C. The results showed that all order resonant frequencies decreased when environment temperature increased, and the high order frequency shifted more than the low order frequency. Finally, the reference state was chosen when the micromachined hemispherical gyroscope was driven at the driving resonant frequency and at room temperature of 20°C, and the sensing vibration amplitude presented the angular rate output. The sensing vibration amplitudes were calculated with the angular rate input from 0/s to π/s and environment temperature changing from -40°C to 120°C, and it concluded that temperature change can seriously degrade the angular rate output. |
| Starting Page | 637 |
| Ending Page | 640 |
| File Size | 556893 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781479947072 |
| DOI | 10.1109/ICEPT.2014.6922736 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-08-12 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Gyroscopes Resonant frequency Temperature sensors Vibrations Electronics packaging Temperature angular rate out micromachined hemispherical gyroscope thermal effect resonant frequency shift |
| Content Type | Text |
| Resource Type | Article |
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