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Dual-wavelength laser heterodyne interferometer for absolute displacement measurement

Published online by Cambridge University Press:  23 March 2006

I. Naeim ,
M. Amer  and
M. Nicklawy
I. Naeim*
Affiliation:
National Institute of Standards, Giza, Egypt
M. Amer
Affiliation:
National Institute of Standards, Giza, Egypt
M. Nicklawy
Affiliation:
Helwan University, Faculty of Science, Egypt
*
[email protected]
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Abstract

In order to meet absolute metrology of displacement in several axes simultaneously; the induced errors due to the fluctuation of atmospheric parameters and Doppler effect should be investigated. Measurements of phase dispersion and Doppler frequency shift over two different axes using dual-wavelength laser heterodyne interferometer (ZMI-1000A) are reported. The principle of this work is to study the induced parameters influences of an absolute measurement of a displacement over two different axes in a free atmosphere using laser heterodyne interferometer.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 34 , Issue 1 , April 2006 , pp. 67 - 70
Copyright
© EDP Sciences, 2006

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