Gun tube orientation sensor; target mirror

Details Gun tube orientation sensor; target mirror Gun tube orientation sensor; target mirror

1979-09-20

1981-12-22

Punter, William H.

Optics: measuring and testing

Angle measuring or angular axial alignment

356153, G01B 1126, G01B 1127

Patent

active

043068065

ABSTRACT:
Disclosed is an apparatus useful for obtaining mutual angular alignment of two remotely positioned objects about three orthogonal axes. The apparatus comprises essentially a collimated light source associated with one of the two objects, a prism associated with the other of the two objects, and a viewing screen or device for viewing images created by the light source and the prism. The face of the prism is partially reflective and partially transmissive of light received the light source, whereby the image projected by the light source is split into two distinct images by the prism. Together, the two images give an indication of the relative orientations of the two objects about three mutually orthogonal axes. The apparatus is useful for detecting and correcting changes in the orientation of a gun tube after firing. It is also useful for obtaining precise alignment of tools or precision manufacturing equipment.

REFERENCES:
patent: 3480367 (1969-11-01), Husted et al.
patent: 3486826 (1969-12-01), Colvin et al.
patent: 3891323 (1975-06-01), Ryan et al.
patent: 4126394 (1978-11-01), Ulrich
Bohlin, J. D., "Simultaneous Optical Monitoring of Angular & Translational lignment", Applied Optics, 4-1972, pp. 961-962.

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