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Optical Engineering

Accuracy Of An Optical Open Area Ratiometer
Author(s): Fred M. Dickey; Bruce W. Jones
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Paper Abstract

An optical open area ratiometer for measuring the percent open area of perforated sheet materials has been developed. The device uses a technique based on Fourier optics in which a detector is employed to measure a small central portion of the light in the Frau nhofer diffraction pattern of the perforated sheet. This paper discusses the associated problems and results of testing the accuracy of the device. The accuracy is shown to be on the order of 2% of the open area ratio.

Paper Details

Date Published: 1 April 1983
PDF: 1 pages
Opt. Eng. 22(2) 222275 doi: 10.1117/12.7973097
Published in: Optical Engineering Volume 22, Issue 2
Show Author Affiliations
Fred M. Dickey, Boeing Military Airplane Company (United States)
Bruce W. Jones, Boeing Military Airplane Company (United States)

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