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Proceedings Paper

The application of dual-wavelength 3.39 um HeNe laser on absolute distance interferometry
Author(s): Ren Weiming
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Paper Abstract

A dual-wavelength 3.39μm HeNe laser is used to construct a beat interferometer which can realize the measurements of absolute distances in this paper. With this laser the interferometer produces a series of spatial beat wave. By directly measuring the fractional orders of these beat waves, the accurate value of measured length can be calculated in terms of them. The experiments have shown that the measurement accuracy of fractional order is 32μm.

Paper Details

Date Published: 1 September 1996
PDF: 2 pages
Proc. SPIE 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 2778EZ (1 September 1996); doi: 10.1117/12.2316228
Show Author Affiliations
Ren Weiming, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 2778:
17th Congress of the International Commission for Optics: Optics for Science and New Technology
Joon-Sung Chang; Jai-Hyung Lee; ChangHee Nam, Editor(s)

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