Position gauge

Details Position gauge Position gauge

1975-06-24

1977-05-03

Corbin, John K.

Optics: measuring and testing

Angle measuring or angular axial alignment

With photodetection remote from measured angle

250239, 250578, 356199, G01B 1110

Patent

active

040211193

ABSTRACT:
An optical gauging apparatus includes structure defining a pair of light beams. One of the beams comprises a reference beam while the other is a measuring beam. An object to be gauged is positioned to partially interrupt the measuring beam. The partially interrupted measuring beam is compared with the reference beam as the object to be gauged is run through the gauging process.

REFERENCES:
patent: 3258686 (1966-06-01), Selgin
patent: 3730633 (1973-05-01), Kennedy
patent: 3749500 (1973-07-01), Carlson et al.
patent: 3900738 (1975-08-01), McKay, Sr.
Leonard, M. "Digital Noncontact Gages for the Metals Industry", Proc. 19th Intern. ISA Iron and Steel Instrumentation Symp., Pittsburgh, Pa. USA, 17-19, Mar. 1969, pp. 15-25.

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