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Proceedings Paper

Optical Distance Sensing For Robotics Applications
Author(s): V. Gerbig
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Paper Abstract

Technical possibilities and economic conditions have made robots a necessity. But most of todays "robots" lack sensors and hence they are not capable of really intelligent, flexible, adaptive and safe (but unsupervised) operation. Besides mechanical sensors for forces, moments, pressure etc., optical sensors are truly required to gain those capabilities. Optical sensing allows for fast, non-contact, force-free, remote, flexible, universally applicable, accurate, etc. measure-ments without wear of object or sensor. Optical distance sensing is a basic measurement function. Done in parallel (using moire e.g.) or performed serially (i.e. by scanning) it provides information about position, orientation, shape, dimensions, etc., and also about changes of these parameters with time (speed, vibration, etc.). Therefore, numerous applications are imaginable, esp. in robotics, e.g. tracking, approaching, grasping, guiding, assembling and inspection. Various methods for optical distance measurements will be presented. There are geometrical optical methods (like triangulation) as well as wave-optical ones (like interferometry), methods for smooth and rough targets, active and passive methods, etc. Many known and some new methods are to be discussed and evaluated in the light of robotics applications which mostly require fast, accurate, compact, robust and inexpensive systems.

Paper Details

Date Published: 18 January 1985
PDF: 2 pages
Proc. SPIE 0473, Symposium Optika '84, (18 January 1985); doi: 10.1117/12.942459
Show Author Affiliations
V. Gerbig, Institut fur Messtechnik I.M. der Univ. Hannover (Germany)

Published in SPIE Proceedings Vol. 0473:
Symposium Optika '84
Gabor Lupkovics; Andras Podmaniczky, Editor(s)

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