Process and apparatus for the non-contact measurement of the geo

Details Process and apparatus for the non-contact measurement of the geo Process and apparatus for the non-contact measurement of the geo

1988-12-09

1991-01-01

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356376, G01N 2186

Patent

active

049821032

ABSTRACT:
Process and apparatus for measuring or checking the geometric contours of a part without contact, wherein the part is illuminated by a focussed laser beam and a reflected ray is detected by means of an array of photo diodes, the position of the part and the position of the diode which receives the maximum intensity of the reflected ray being recorded by a computer at each step as the part is moved step by step relative to the incident beam, this data enabling the computer to reconstruct the scanned contour of the part.

REFERENCES:
patent: 4299491 (1981-11-01), Waters et al.
patent: 4473750 (1984-09-01), Oshida et al.
patent: 4674869 (1987-06-01), Pryor
patent: 4708483 (1987-11-01), Lorenz
patent: 4792698 (1988-12-01), Pryor
patent: 4794550 (1988-12-01), Greivenkamp
Patent Abstracts of Japan, vol. 11, No. 15 (P-536) [2462], Jan. 16, 1987.

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