Absolute displacement measurement by using the synthesized modulation index of a frequency-modulated interferometer

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/28179

Title:	Absolute displacement measurement by using the synthesized modulation index of a frequency-modulated interferometer
Authors:	Chang,LW;Lee,CT;Chien,PY
Contributors:	光電科學研究所
Keywords:	DISTANCE MEASUREMENT;LASER
Date:	1997
Issue Date:	2010-06-29 19:43:04 (UTC+8)
Publisher:	中央大學
Abstract:	A novel absolute displacement measurement by using a heterodyne interferometer, with a frequency-modulated laser diode has been successfully implemented. In this signal processing scheme, the synthesized modulation index of a phase-modulated interferometer is used for measuring the displacement, which is independent of the variation of the modulation frequency. The error induced from the intensity modulation in the laser diode can be eliminated. (C) 1997 American Institute of Physics.
Relation:	REVIEW OF SCIENTIFIC INSTRUMENTS
Appears in Collections:	[Graduate Institute of Optics and Photonics] journal & Dissertation

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