New method of large-scale absolute distance measurement

Yongjun Wu; Yang Zhao; Dacheng Li

doi:10.1117/12.162106

22 October 1993 New method of large-scale absolute distance measurement

Yongjun Wu, Yang Zhao, Dacheng Li

Proceedings Volume 2066, Industrial Optical Sensing and Metrology: Applications and Integration; (1993) https://doi.org/10.1117/12.162106
Event: Optical Tools for Manufacturing and Advanced Automation, 1993, Boston, MA, United States

Abstract

A frequency-modulation absolute distance measurement techniques using a external-cavity semiconductor laser is proposed. A reference interferometer was adopted in order to reduce the effect of the central frequency drift of the laser on the measurement accuracy. The principle of the measurement is described and the experimental setup is introduced. The measurable range is as large as ten meters.

Citation Download Citation

Yongjun Wu, Yang Zhao, and Dacheng Li "New method of large-scale absolute distance measurement", Proc. SPIE 2066, Industrial Optical Sensing and Metrology: Applications and Integration, (22 October 1993); https://doi.org/10.1117/12.162106

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