共焦法布里-珀羅干涉儀靈敏度和穩定性研究

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共焦法布里-珀羅干涉儀靈敏度和穩定性研究

丁紅勝, 童莉葛, 尹紅, 龔育良

文章導航 > 工程科學學報 > 2001 > 23(5): 445-448

丁紅勝, 童莉葛, 尹紅, 龔育良. 共焦法布里-珀羅干涉儀靈敏度和穩定性研究[J]. 工程科學學報, 2001, 23(5): 445-448. doi: 10.13374/j.issn1001-053x.2001.05.016

引用本文:

丁紅勝, 童莉葛, 尹紅, 龔育良. 共焦法布里-珀羅干涉儀靈敏度和穩定性研究[J]. 工程科學學報, 2001, 23(5): 445-448. doi: 10.13374/j.issn1001-053x.2001.05.016

DING Hongsheng, TONG Lige, YIN Hong, GONG Yuliang. Methods to Improve the Sensitivity and Stability of CFPI for Surface Ultrasonic Vibration Detection[J]. Chinese Journal of Engineering, 2001, 23(5): 445-448. doi: 10.13374/j.issn1001-053x.2001.05.016

Citation:

DING Hongsheng, TONG Lige, YIN Hong, GONG Yuliang. Methods to Improve the Sensitivity and Stability of CFPI for Surface Ultrasonic Vibration Detection[J]. Chinese Journal of Engineering, 2001, 23(5): 445-448. doi: 10.13374/j.issn1001-053x.2001.05.016

丁紅勝, 童莉葛, 尹紅, 龔育良. 共焦法布里-珀羅干涉儀靈敏度和穩定性研究[J]. 工程科學學報, 2001, 23(5): 445-448. doi: 10.13374/j.issn1001-053x.2001.05.016

引用本文:

丁紅勝, 童莉葛, 尹紅, 龔育良. 共焦法布里-珀羅干涉儀靈敏度和穩定性研究[J]. 工程科學學報, 2001, 23(5): 445-448. doi: 10.13374/j.issn1001-053x.2001.05.016

DING Hongsheng, TONG Lige, YIN Hong, GONG Yuliang. Methods to Improve the Sensitivity and Stability of CFPI for Surface Ultrasonic Vibration Detection[J]. Chinese Journal of Engineering, 2001, 23(5): 445-448. doi: 10.13374/j.issn1001-053x.2001.05.016

Citation:

DING Hongsheng, TONG Lige, YIN Hong, GONG Yuliang. Methods to Improve the Sensitivity and Stability of CFPI for Surface Ultrasonic Vibration Detection[J]. Chinese Journal of Engineering, 2001, 23(5): 445-448. doi: 10.13374/j.issn1001-053x.2001.05.016

共焦法布里-珀羅干涉儀靈敏度和穩定性研究

doi: 10.13374/j.issn1001-053x.2001.05.016

1. 中國科學院低溫中心, 北京 100080;
2. 北京科技大學物理系, 北京 100083;
3. 北京科技大學機械工程學院, 北京 100083

作者簡介:
丁紅勝男,31歲,講師

中圖分類號: TB551;O434.12;O421⁺.5
計量
- 文章訪問數: 225
- HTML全文瀏覽量: 44
- PDF下載量: 11
- 被引次數: 0
出版歷程
- 收稿日期: 2001-01-12

Methods to Improve the Sensitivity and Stability of CFPI for Surface Ultrasonic Vibration Detection

1. Cryogenic Center, Chinese Acadymy of Science, Beijing 100080;
2. Department of Physics, UST seijing, Beijing 100083;
3. Mechanical Engineering School, UST Beijing Beijing 100083

摘要: 共焦法布里-珀羅干涉儀(Confocal Fabry-Perot Interferometer, CFPI)是用光學方法探測固體表面超聲振動的解調器件,它的靈敏度和穩定性決定了整個系統的靈敏度和穩定性.通過使用干涉儀的共軛輸出光,使系統探測超聲振動的靈敏度可提高至少2倍;同時詳細給出通過干涉環來粗調干涉儀的共焦點,并提出使用單片機(MCS-51)反饋控制系統來穩定最佳工作點的方法.利用該系統實現了對鋁樣品表面壓電超聲振動的檢測,得到了較好的實驗結果.
- 共焦法布里-珀羅干涉儀 /
- 超聲振動探測 /
- 靈敏度 /
- 穩定性
Abstract: Confocal Fabry-Perot Interferometer (CFPI) is the demdulation device for surfce ultrasonic vibration detection. Its sensitivity and stability play very driportant roles in whole system. In this paper, a new detection system is introduced. By using both conjugate rays, the system sensitivity is doubled. Moreover, a single chip microcomputer (MCS-51) feedback control loop is applied to stabilize the working point at optimum position. The system has performed in detecting piezoelectric ultrasonic on surface of an aluminum sample.
- Confocal Fabry-Perot Interferometer (CFPI) /
- ultrasonic vibraion deection /
- sensitivity /
- stability

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