| 干涉仪自适应抗振的空间移相术 |
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| 引用本文： | 吴栋,陈磊,陈进榜,朱日宏,高志山.干涉仪自适应抗振的空间移相术[J].光子学报,2003,32(8):969-972. |
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| 作者姓名： | 吴栋 陈磊 陈进榜 朱日宏 高志山 |
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| 作者单位： | 1. 解放军镇江船艇学院教研室,镇江,212003;南京理工大学电光学院,南京,210094
2. 南京理工大学电光学院,南京,210094 |
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| 基金项目： | 国防军工计量“十五”重点项目资助 (项目编号 :6 0 80 3134) |
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| 摘 要： | 根据时域移相算法的概念,提出了一种空间移相术,它能够检测因外界振动导致条纹抖动而引起的干涉图样的空间相位变化.运用这种技术在TwymanGreen移相式干涉仪中建立了一套自适应抗振系统,它可以实时测量振动引起的相位变化大小,并通过反馈器件PZT实时校正干涉条纹的相位,使得干涉条纹稳定以保证光学测量的正常进行,与此同时PZT还作为移相器件.
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| 关 键 词： | 空间移相术 自适应抗振 移相式干涉仪 |
| 收稿时间： | 2002/9/24 |
| 修稿时间： | 2002年9月24日 |
Spatial Phase-shifting Method for Adaptive Vibration-resistant Interferometer |
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| Wu Dong ,Chen Lei,Chen Jinbang,Zhu Rihong,Gao Zhishan School of Electronic Engineering and Photoelectric Technology,Nanjing University of Science & Technology,Nanjing.Spatial Phase-shifting Method for Adaptive Vibration-resistant Interferometer[J].Acta Photonica Sinica,2003,32(8):969-972. |
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| Authors: | Wu Dong Chen Lei Chen Jinbang Zhu Rihong Gao Zhishan School of Electronic Engineering and Photoelectric Technology Nanjing University of Science & Technology Nanjing |
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| Institution: | Wu Dong 1,2,Chen Lei2,Chen Jinbang2,Zhu Rihong2,Gao Zhishan2 1 2 School of Electronic Engineering and Photoelectric Technology,Nanjing University of Science & Technology,Nanjing,210094 |
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| Abstract: | Based on the conception of the phase-shifting method in time domain, a new technique named spatial phase-shifting method is presented. It can detect the phase variation caused by fringe movement due to the external perturbations. This method is applied to a Twyman-Green phase shifting interferometer in which an adaptive vibration-resistant system has been built. In this interferometer, the fringe phase is calibrated in real time by a piezoelectric transducer (PZT) used as both phase-shifting and motional feedback device, thus fringe pattern is stabilized and the optical testing can be carried out. |
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| Keywords: | Phase-shifting interferometer Vibration-resistance Spatial phase-shifting method |
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