G - Physics – 08 – B
Patent
G - Physics
08
B
356/107, 340/159
G08B 21/00 (2006.01)
Patent
CA 1167546
CONTINUOUS STRIP COLD DETECTOR Abstract A continuous strip sensor for detecting extremely cold temperatures is disclosed. The sensor includes a plurality of series connected sections each of which exhibits a substantial increase in resistance upon exposure to an extremely cold temperature. A detection circuit utilizing the above sensor provides compensation for changes in ambient temperature by means of a compensation sensor having the same total resistance and resistance-temperature characteristic as the cold sensor. The detection circuit also detects the occurrence of faults in the cold sensor or the compensation-sensor. - - - - - - - -
372409
Belliveau Raymond E.
Larkin Simon J.
Kidde (walter) & Company Inc.
Ridout & Maybee Llp
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