Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1989-03-08
1990-08-21
Hannaher, Constantine
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
2503383, 250343, 250352, G01N 2117, G01N 2171, G01J 100
Patent
active
049509004
ABSTRACT:
An infrared gas analyzer using a pyroelectric infrared sensor, which includes a heating unit for heating the infrared sensor, a heating sensor for detecting its heating temperature and a temperature sensor for detecting the ambient temperature of the infrared sensor, and controls the heating unit so as to retain the ambient temperature of the infrared sensor at a constant so that the output error is small irrespective of the change in ambient temperature.
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patent: 4501968 (1985-02-01), Edi et al.
patent: 4516027 (1985-05-01), Schimmelpfennig et al.
"Modulation Typed Micro Noncontact Temperature Sensor", Kuwano et al., Electronic Parts and Materials, vol. 23, No. 8, pp. 96-100.
Kuroki Kazuhiko
Nakano Shoichi
Nishikawa Seiji
Shibata Kenichi
Takeuchi Kousuke
Eisenberg J.
Hannaher Constantine
Sanyo Electric Co,. Ltd.
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