Multiple aperture ir sensor

Details Multiple aperture ir sensor Multiple aperture ir sensor

1987-09-17

1990-10-23

Tarcza, Thomas H.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

244 316, 356152, 2502033, 250342, G01C 100, G01J 120

Patent

active

049654535

ABSTRACT:
A multi-aperture, non-imaging sensing system is disclosed, for guiding a moving projectile toward a source of infrared energy. The detectors are arranged peripherally about a forward portion of the projectile, with their individual fields of view overlapping one another to selectively separate a composite field of view into a plurality of separate sectors, with a central sector including all individual fields of view. Infrared sensing elements and electrical circuitry are operatively associated with the detectors, for generating a binary one or zero, depending upon whether an infrared energy source is sensed by the associated detector. The combined results are generated as a digital word, utilized to indicate the location of the source within the composite field of view, and to generate a control signal. The control signal adjusts the projectile orientation to locate and maintain the source within the central sector of the composite field of view.

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patent: 4625108 (1986-11-01), Nestel et al.
patent: 4796834 (1989-01-01), Ahlstrom

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