Thermal measuring and testing – Housing – support – or adjunct
Patent
1985-10-21
1987-04-21
Frankfort, Charles
Thermal measuring and testing
Housing, support, or adjunct
236DIG12, 236 94, 307310, 374100, 374173, 374170, G01K 114, G01K 116
Patent
active
046592369
ABSTRACT:
A temperature sensor which is flush mounted on a wall of a room in which the temperature is sensed. A mounting plate secured to the wall has a cavity in its face which receives an aluminum sensor plate and an insulating block which thermally insulates the sensor plate from the mounting plate. A temperature sensing integrated circuit contacts the back side of the sensor plate and has electrical leads which extend to the back side of a printed circuit board mounted in a pocket on the back side of the mounting plate. The integrated circuit acts as a current source having its output signal enhanced by active solid state circuit components mounted on the back side of the circuit board where their heat is dissipated by conduction through the mounting plate and wall and by convection and radiation into the wall cavity to avoid affecting the sensor plate. The circuitry allows active factory calibration and eliminates adverse effects on the signal caused by background environmental noise.
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patent: 4282591 (1981-08-01), Andreuccetti
patent: 4480312 (1984-10-01), Wingate
Frankfort Charles
Tempmaster Corporation
Will Thomas B.
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