Miniature thin film infrared calibration source

Electric heating – Heating devices – With heating unit structure

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Details

219209, 2504931, 338309, H05B 316

Patent

active

043784895

ABSTRACT:
An evaporated thin-film platinum resistance thermometer interleaved with a nichrome heating element on a sapphire substrate so as to calibrate infrared detectors and allow accurate control of the output signals of such detectors.

REFERENCES:
patent: 3887785 (1975-06-01), Ahlport
patent: 3961155 (1976-06-01), Weldon et al.
patent: 4078178 (1978-03-01), Lowes
patent: 4099046 (1978-07-01), Boynton et al.
patent: 4256960 (1981-03-01), Snider

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