Thermocouple-to-extension wire ambient temperature error correct

Details Thermocouple-to-extension wire ambient temperature error correct Thermocouple-to-extension wire ambient temperature error correct

1998-06-18

2000-12-12

Gutierrez, Diego

Thermal measuring and testing

Temperature measurement

By electrical or magnetic heat sensor

374181, 374182, 374164, G01K 702

Patent

active

061588857

ABSTRACT:
The invention relates to a device for correcting error in temperature readings caused by thermocouple-to-extension wire ambient temperature fluctuations. The device creates an isothermal mass which raises the temperature of terminals to higher than ambient temperature. The isothermal mass consists of a self heating thermistor surrounded by thermal conductive epoxy inside an isothermal mass which contains the terminals. The isothermal mass is enclosed within insulating discs using a closure casing to complete the assembly. Using these higher than ambient temperature terminals for the connection between a thermocouple and extension wires, any error due to ambient temperature fluctuations is minimized.

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