Thermal measuring and testing – Temperature measurement – By electrical or magnetic heat sensor
Patent
1996-10-02
1998-04-07
Gutierrez, Diego F. F.
Thermal measuring and testing
Temperature measurement
By electrical or magnetic heat sensor
374183, G01K 704, G01K 714, G01K 700
Patent
active
057356050
ABSTRACT:
An apparatus is disclosed which adapts the output signal of a thermocouple temperature sensor to be electrically the same as the output signal of a thermistor temperature sensor. The disclosed apparatus, which consists of a conversion circuit, a translation circuit, and an output control circuit, makes the thermocouple temperature sensor compatible with a temperature measuring instrument which is designed for use with a thermistor temperature sensor. The conversion circuit converts the small electrical voltage produced by a thermocouple temperature sensor into a substantial electrical voltage representing the temperature at the location of the thermocouple temperature sensor. The translation circuit translates the electrical voltage at the output of the conversion circuit into an analog electrical signal which is proportional to an electrical voltage that would exist across the terminals of a thermistor temperature sensor exposed to the same temperature as the thermocouple temperature sensor. The output control circuit produces an output voltage at the output terminals of the apparatus which varies as a function of the electrical signal at the output of the translation circuit. This output voltage is equivalent to the electrical voltage which would exist across the terminals of a thermistor temperature sensor if the thermistor temperature sensor was connected to the temperature measuring instrument's input and was exposed to the same temperature as the thermocouple temperature sensor.
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DeRoyal Industries Inc.
Gutierrez Diego F. F.
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