Eur. Phys. J. Appl. Phys.
Volume 34, Number 1, April 2006
|Page(s)||67 - 70|
|Section||Instrumentation and Metrology|
|Published online||23 March 2006|
Dual-wavelength laser heterodyne interferometer for absolute displacement measurement
National Institute of Standards, Giza, Egypt
2 Helwan University, Faculty of Science, Egypt
Corresponding author: email@example.com
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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