Study of measuring rotating angle with double-frequency laser and wedge-plate interference

Zuo Zhang; Zhigang Fan; Pengsheng Li

doi:10.1117/12.165476

10 December 1993 Study of measuring rotating angle with double-frequency laser and wedge-plate interference

Zuo Zhang, Zhigang Fan, Pengsheng Li

Proceedings Volume 2003, Interferometry VI: Techniques and Analysis; (1993) https://doi.org/10.1117/12.165476
Event: SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, 1993, San Diego, CA, United States

Abstract

The method of measuring rotating angle with double-frequency laser and wedge-plate interference based on the principle of equal-thickness interference is discussed in this paper. It makes good use of the features of good standing-interference and high sensitivity of double- frequency laser and turns the variation of rotating angle into the variation of interference fringes, so it makes measuring rotating angle with higher precision possible. It not only can determine the rotating direction automatically but also has the features of continuously measuring within 360 degree(s) and the unvarious precision of measuring angle at a higher rotating rate. It has regular theoretical and applied value.

Citation Download Citation

Zuo Zhang, Zhigang Fan, and Pengsheng Li "Study of measuring rotating angle with double-frequency laser and wedge-plate interference", Proc. SPIE 2003, Interferometry VI: Techniques and Analysis, (10 December 1993); https://doi.org/10.1117/12.165476

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