Satellite alignment sensor

Details Satellite alignment sensor Satellite alignment sensor

1984-01-03

1987-01-06

Buczinski, Stephen C.

Optics: measuring and testing

Angle measuring or angular axial alignment

With photodetection remote from measured angle

356141, 250203R, G01B 1126, G01C 100, G01J 120

Patent

active

H00001929

ABSTRACT:
An optical alignment sensor capable of receiving radiation from a collima light source and subsequently providing orientation attitude and alignment data. Collimated light from the source impinges an aperture plate causing a shadow of the aperture plate pattern to fall across a two-dimensional photodetector array. Since the aperture pattern is larger than the active area of the array, only a portion of the light spots forming the aperture plate pattern will fall on the array. By varying the spacing of the apertures in the aperture plate in a known way, the light spots on the array can be associated with specific apertures in the aperture plate. From the location of specific light spots on the array, the angular orientation of the alignment sensor may be determined with respect to the incident beam.

REFERENCES:
patent: 2411879 (1946-12-01), Holmes
patent: 3713740 (1973-01-01), Lillestrand et al.
patent: 3861801 (1975-01-01), Peters et al.
patent: 3864043 (1975-02-01), Russell
patent: 3951550 (1976-04-01), Slick
patent: 4309106 (1982-01-01), Smith
patent: 4314761 (1982-02-01), Reymond et al.
patent: 4325633 (1982-04-01), Gardner
patent: 4410270 (1983-10-01), Zuckerman

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