Paper
16 July 1986 Thin Plate Counting Device
G. R. Bennett, R. M. Clement
Author Affiliations +
Proceedings Volume 0599, Optics in Engineering Measurement; (1986) https://doi.org/10.1117/12.952401
Event: 1985 International Technical Symposium/Europe, 1985, Cannes, France
Abstract
A simple, portable device is described which is able to count the number of sheets of metal or plastic plates in a stack. The device, for which patents have been applied, is capable of counting plates which are only 0.1 mm thick. The limiting resolution of the device is limited only by the quality of the optical system used and the relative stability between the plates to be counted and the measuring device itself.
© (1986) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
G. R. Bennett and R. M. Clement "Thin Plate Counting Device", Proc. SPIE 0599, Optics in Engineering Measurement, (16 July 1986); https://doi.org/10.1117/12.952401
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KEYWORDS
Photodiodes

Modulation

Reflectivity

Manufacturing

Helium neon lasers

Optical testing

Patents

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