| Issue |
Eur. Phys. J. Appl. Phys.
Volume 34, Number 1, April 2006
|
|
|---|---|---|
| Page(s) | 67 - 70 | |
| Section | Instrumentation and Metrology | |
| DOI | https://doi.org/10.1051/epjap:2006030 | |
| Published online | 23 March 2006 | |
https://doi.org/10.1051/epjap:2006030
Dual-wavelength laser heterodyne interferometer for absolute displacement measurement
1
National Institute of Standards, Giza, Egypt
2
Helwan University, Faculty of Science, Egypt
Corresponding author: ihabix@yahoo.com
Received:
25
July
2005
Revised:
8
December
2005
Accepted:
13
December
2005
Published online:
23
March
2006
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.
PACS: 06.30.Bp – Spatial dimensions (e.g., position, lengths, volume, angles, and displacements)
© EDP Sciences, 2006
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