Target for calibrating and testing infrared detection devices

Details Target for calibrating and testing infrared detection devices Target for calibrating and testing infrared detection devices

1981-04-20

1983-06-07

Smith, Alfred E.

Radiant energy

Calibration or standardization methods

374 2, G01D 1800

Patent

active

043873014

ABSTRACT:
Apparatus for calibrating and testing infrared detection devices is provided. The apparatus comprises a substrate which supports a target pattern of dielectric material which is at least partially absorbing to infrared radiation. A heater is used to supply heat to the substrate. Since the substrate and dielectric material have different emissivities, an apparent temperature difference is perceived by an IR detection device. As a consequence, temperature differences as low as about 0.02.degree. C. and below can be generated for calibrating and testing IR imaging devices.

REFERENCES:
patent: 3283148 (1966-11-01), Schwarz et al.
patent: 3596096 (1971-07-01), Koehler
patent: 3694624 (1972-09-01), Buchta
patent: 3845295 (1974-10-01), Williams et al.
patent: 3971886 (1976-07-01), Chow
patent: 3986384 (1976-10-01), Giorgi
patent: 4047032 (1977-09-01), Judge et al.
patent: 4058734 (1977-11-01), Vroombout

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