Share Email Print

Proceedings Paper

Phase Detected Triangulation: A New Twist On An Old Technology
Author(s): Leonard H. Bieman; Kevin G. Harding; Mark Michniewicz; Robert Tait
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

A new approach to measuring range using triangulation is presented. In this approach, the triangulation angle is determined by spatially modulating the intensity of light in front of a single channel photodetector and then measuring the phase of the detector output signal. Using a single detector instead of the commonly used linear array or lateral effect photodivide, allows an increased signal to noise ratio and the possibility of faster measurement rates. Two possible application areas discussed are long range measurement (greater than one meter) and measurement of mirror like surfaces.

Paper Details

Date Published: 12 March 1988
PDF: 8 pages
Proc. SPIE 0850, Optics, Illumination, and Image Sensing for Machine Vision II, (12 March 1988); doi: 10.1117/12.942879
Show Author Affiliations
Leonard H. Bieman, Industrial Technology Institute (United States)
Kevin G. Harding, Industrial Technology Institute (United States)
Mark Michniewicz, Industrial Technology Institute (United States)
Robert Tait, Industrial Technology Institute (United States)

Published in SPIE Proceedings Vol. 0850:
Optics, Illumination, and Image Sensing for Machine Vision II
Donald J. Svetkoff, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?