제어로봇시스템학회:학술대회논문집
- 1990.10b
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- Pages.1021-1026
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- 1990
Accuracy-improvement simulation of self-mixing semiconductor laser range finder driven by reshaped modulation current
- Shinohara, Shigenobu (Shizuoka Univ.) ;
- Nobunaga, Kazuhiko (Shizuoka Univ.) ;
- Yoshida, Hirofumi (Shizuoka Univ.) ;
- Ikeda, Hiroaki (Shizuoka Univ.) ;
- Miyata, Masafumi (Tokyo Aircraft Instrument Co.Ltd) ;
- Nishide, Ken-ichi (Tokyo Aircraft Instrument Co.Ltd) ;
- Sumi, Masao (Chiba Institute of Technology)
- Published : 1990.10.01
Abstract
Accuracy improvement of a self-mixing semiconductor laser range finder is predicted by simulation, in which the laser modulation current is reshaped to give an ideal triangular waveform of the optical frequency change. The maximum range measurement error of less than 0.1% in a wide range of O.1m to 1m is expected by the reshaping of the modulation current. Experimental verification of the effect of current reshaping on the linearization of the derivative of the optical frequency change curve is given.
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