Electric heating – Heating devices – With power supply and voltage or current regulation or...
Patent
1994-12-30
1998-07-21
Paschall, Mark H.
Electric heating
Heating devices
With power supply and voltage or current regulation or...
219483, 219486, 219502, 219543, 324106, 324132, 136225, 136230, 136239, H05B 102, G01R 526
Patent
active
057838054
ABSTRACT:
Electrothermal conversion elements, apparatus and methods for use in comparing, calibrating and measuring electrical signals utilizing a thin film heater on a thin, low mass, low thermal conductivity substrate and low mass thermoresistive or PN junction thermal radiation sensors. The element emits IR radiation in response to electrical input. The radiation is collected and converted to an electrical signal proportional to the RMS value of the input signal. Isothermal operation enhances both IR and electrical operation.
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