NASA NTRS · 19760000475
Infrared range sensor
Abstract
Sensor employs triangulation technique to locate objects that lie in intersections of four emitted beams of light and fields of view of four phototransistors. Signals from individual phototransistors are filtered and identified by individual synchronous detectors, one for each beam-intersection point.
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Hill, J. W., Woodbury, J. R.. 1977-03-01. Infrared range sensor. https://ntrs.nasa.gov/citations/19760000475
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