Non-contact dimensional measurement technique

Details Non-contact dimensional measurement technique Non-contact dimensional measurement technique

1974-10-31

1976-03-02

Smith, Alfred E.

Optics: measuring and testing

Angle measuring or angular axial alignment

With photodetection remote from measured angle

250560, 356157, 356167, G01B 1102, G01B 902

Patent

active

039414841

ABSTRACT:
A high-speed technique for making accurate dimensional measurements of objects without physically touching the objects. The technique involves generating a low-divergence, collimated light beam which acts to silhouette the object to be measured to produce an image thereof that can be viewed and analyzed by a programmed electro-optical scanner in a manner yielding highly accurate dimensional information substantially independent of the location of the object relative to the viewer.

REFERENCES:
patent: 3518007 (1970-06-01), Ito
patent: 3743428 (1973-07-01), Brown
patent: 3854822 (1974-12-01), Altman et al.

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