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Proceedings Paper

Range sensor based on a laser diode
Author(s): Ramani Seshamani; K. Vijaya; T. K. Alex
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Paper Abstract

A range sensor based on a laser diode has been developed. The laser diode transmitter and avalanche photodiode receiver are housed adjacently. The laser current monitor generates a 'start' pulse while the receiver generates a 'stop' pulse. The two pulses are input to a Schmitt trigger, monostable multivibrator, inverter and D flip-flop. The flip-flop output pulse train starts and stops a binary counter. The counter output is latched and displayed, giving the range in meters. The paper presents the results of the experiment, giving the flip-flop output pulse width versus the range to a mirror reflecting back the laser diode pulse.

Paper Details

Date Published: 1 June 1992
PDF: 5 pages
Proc. SPIE 1633, Laser Radar VII: Advanced Technology for Applications, (1 June 1992); doi: 10.1117/12.59218
Show Author Affiliations
Ramani Seshamani, ISRO Satellite Ctr. (India)
K. Vijaya, ISRO Satellite Ctr. (India)
T. K. Alex, ISRO Satellite Ctr. (India)

Published in SPIE Proceedings Vol. 1633:
Laser Radar VII: Advanced Technology for Applications
Richard J. Becherer, Editor(s)

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