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Compact and versatile self-mixing type semiconductor laser Doppler velocimeters with direction-discrimination circuit

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5 Author(s)
Shinohara, S. ; Dept. of Electr. Eng., Shizuoka Univ., Hamamatsu, Japan ; Naito, H. ; Yoshida, H. ; Ikeda, H.
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A compact vector-velocimeter is described which uses a self-mixing type laser Doppler velocimeter (SM-LDV). It electrically identifies features of the sawtooth-like Doppler beat signal waveform to determine the direction of target motion within a velocity range of 23 mm/s-23 m/s. The range of velocity measured is 0.2 mm/s-34 m/s. The measured vector velocity of a reciprocally moving target as well as a rotating target agrees well with the theoretical value

Published in:

Instrumentation and Measurement, IEEE Transactions on  (Volume:38 ,  Issue: 2 )

Date of Publication:

Apr 1989

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