Surface quality analyzer apparatus and method

Details Surface quality analyzer apparatus and method Surface quality analyzer apparatus and method

1988-10-05

1990-05-29

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356371, G01N 2186

Patent

active

049298461

ABSTRACT:
Method and apparatus for measuring the quality of a finished surface by projecting a pair of parallel light beams onto the surface and reflecting the beams onto an image screen where they are electronically recorded and analyzed.

REFERENCES:
patent: 3922093 (1975-11-01), Dandliker et al.
patent: 4188544 (1980-02-01), Chasson
patent: 4853777 (1989-08-01), Hupp

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