An inspection system has been developed to improve both the reliability and the yield of surface treated components. Digitized data streams from photo detectors are fed into a hybrid DSP/multi-processor transputer system. The photo detectors collect scattered light from twin laser scanners (one scanner for each side of the relay contact). For real time operation the system inspects up to 10 contacts per second, finding defects as small as 5 (mu) in raw combined data streams totaling approximately 20 Mbyte/sec. The inspection system is currently inspecting the surfaces of plated relay contacts on the factory floor. This paper describes the inspection system with emphasis on the constraints imposed by the requirement for real time processing of large volumes of data.

Date Published: 6 August 1993
PDF: 7 pages
Proc. SPIE 2064, Machine Vision Applications, Architectures, and Systems Integration II, (6 August 1993); doi: 10.1117/12.150296

Published in SPIE Proceedings Vol. 2064:
Machine Vision Applications, Architectures, and Systems Integration II
Bruce G. Batchelor; Susan Snell Solomon; Frederick M. Waltz, Editor(s)