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

Lih Wuu Chang, Ching Ting Lee, Pie Yau Chien

研究成果: Article

1 引文 (Scopus)

摘要

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.

原文English
頁(從 - 到)3085-3087
頁數3
期刊Review of Scientific Instruments
68
發行號8
DOIs
出版狀態Published - 1997 一月 1

指紋

Displacement measurement
displacement measurement
Interferometers
Semiconductor lasers
interferometers
semiconductor lasers
Modulation
modulation
Frequency modulation
frequency modulation
signal processing
Signal processing

All Science Journal Classification (ASJC) codes

  • Instrumentation

引用此文

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