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Proceedings Paper

Applications Of Structured Lighting For Volume Measurement
Author(s): Manouchehr Goharla ' ee; Maureen Raaberg
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Paper Abstract

The use of structured light techniques for obtaining three dimensional measurements of printed circuit board assemblies is examined, and a particular application for calculating the volume of solder paste that has been applied to each pad is described. The optical configuration for projecting parallel lines of light is discussed, along with machine vision algorithms for obtaining the volume measurement. By interpreting the translation of the lines with respect to a known reference point, a series of data points can be collected and used to estimate the total volume of the sample. Further investigation is made into the accuracy of the measurement, and techniques for applying LCD devices within the projection apparatus. It is concluded that these capabilities will allow for the accurate measure of solder paste volume within the manufacturing environment.

Paper Details

Date Published: 22 January 1987
PDF: 9 pages
Proc. SPIE 0728, Optics, Illumination, and Image Sensing for Machine Vision, (22 January 1987); doi: 10.1117/12.937825
Show Author Affiliations
Manouchehr Goharla ' ee, International Robomation Intelligence (United States)
Maureen Raaberg, International Robomation Intelligence (United States)

Published in SPIE Proceedings Vol. 0728:
Optics, Illumination, and Image Sensing for Machine Vision
Donald J. Svetkoff, Editor(s)

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