標題: | Transforming an Optical Pick-up-Head into an Accelerometer With UltraHigh Sensitivity |
作者: | Hung, Shao-Kang Cheng, Chiao-Hua Chiang, Ming-Li Chieh, Jih-Wei 機械工程學系 Department of Mechanical Engineering |
關鍵字: | Acceleration measurement;CD recording;dynamic response;optical position measurement;vibration measurement |
公開日期: | 1-三月-2014 |
摘要: | This paper proposes an accelerometer based on a commercial optical pick-up-head (PUH). An optical PUH is used to be part of an accelerometer by transforming the astigmatic measuring mechanism, the suspending wires, and the objective lens as the displacement sensor, the spring, and the seismic mass, respectively. Instead of adding an extra mass-damper-spring subsystem into the system in previous works, in our design we utilize the four suspending metal wires and the objective lens in an optical PUH. Thus, no extra component is needed and the system is more compact and easy to implement. Experimental results demonstrate that this cost-effective accelerometer has excellent linearity, ultrahigh sensitivity of 114 V/g, and an operating frequency of 20 Hz. |
URI: | http://dx.doi.org/10.1109/TIM.2013.2282427 http://hdl.handle.net/11536/23769 |
ISSN: | 0018-9456 |
DOI: | 10.1109/TIM.2013.2282427 |
期刊: | IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT |
Volume: | 63 |
Issue: | 3 |
起始頁: | 687 |
結束頁: | 693 |
顯示於類別: | 期刊論文 |