中国物理B ›› 2014, Vol. 23 ›› Issue (11): 114202-114202.doi: 10.1088/1674-1056/23/11/114202

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Non-contact angle measurement based on parallel multiplex laser feedback interferometry

张松, 谈宜东, 张书练   

  1. State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing 100084, China
  • 收稿日期:2014-03-11 修回日期:2014-04-04 出版日期:2014-11-15 发布日期:2014-11-15
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant No. 61036016).

Non-contact angle measurement based on parallel multiplex laser feedback interferometry

Zhang Song (张松), Tan Yi-Dong (谈宜东), Zhang Shu-Lian (张书练)   

  1. State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing 100084, China
  • Received:2014-03-11 Revised:2014-04-04 Online:2014-11-15 Published:2014-11-15
  • Contact: Zhang Shu-Lian E-mail:zsl-dpi@mail.tsinghua.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant No. 61036016).

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摘要：

We present a novel precise angle measurement scheme based on parallel multiplex laser feedback interferometry (PLFI), which outputs two parallel laser beams and thus their displacement difference reflects the angle variation of the target. Due to its ultrahigh sensitivity to the feedback light, PLFI realizes the direct non-contact measurement of non-cooperative targets. Experimental results show that PLFI has an accuracy of 8" within a range of 1400". The yaw of a guide is also measured and the experimental results agree with those of the dual-frequency laser interferometer Agilent 5529A.

关键词: laser feedback, angle measurement, non-cooperative targets

Abstract:

We present a novel precise angle measurement scheme based on parallel multiplex laser feedback interferometry (PLFI), which outputs two parallel laser beams and thus their displacement difference reflects the angle variation of the target. Due to its ultrahigh sensitivity to the feedback light, PLFI realizes the direct non-contact measurement of non-cooperative targets. Experimental results show that PLFI has an accuracy of 8" within a range of 1400". The yaw of a guide is also measured and the experimental results agree with those of the dual-frequency laser interferometer Agilent 5529A.

Key words: laser feedback, angle measurement, non-cooperative targets

中图分类号:  (Metrological applications; optical frequency synthesizers for precision spectroscopy)

  • 42.62.Eh
07.60.Ly (Interferometers) 42.55.Xi (Diode-pumped lasers)