Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1984-04-09
1985-10-22
Britton, Howard W.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
356381, 356387, 358100, 358101, 364563, H04N 718
Patent
active
045492077
ABSTRACT:
Apparatus is disclosed for optically measuring the width of a gap between abutting panel surfaces of a multilayered structure that is to be assembled by bolts or rivets inserted through fastener holes. A scanning video camera having an optical image input and a voltage wavetrain output through a coaxial cable is used. The camera mounts on a rigid side viewing borescope which via sleeve adapters is inserted down the fastener hole under test. A fiber optic bundle within the borescope provides illumination of the test surface containing the gap. The information gathered by the video camera is displayed on a TV monitor mounted in a test console. Superimposed on the camera-obtained image is a pair of vertical cursors generated by a video electronic micrometer. Circuitry is provided to produce a dimensional readout of the spacing between cursors when the leftmost cursor is made to coincide with the left edge of the gap image and the rightmost cursor coincides with the right edge of the gap image being displayed on the monitor. The test console also includes a keyboard and companion electronic circuitry for generating programmed instructions and cataloging measured data.
REFERENCES:
patent: 3229577 (1966-01-01), Ellinger
patent: 4287532 (1981-09-01), Moore
patent: 4411528 (1983-10-01), Newcomb
Avco Corporation
Britton Howard W.
Garfinkle Irwin P.
McNair, Jr. Robert J.
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