Abstract

A highly sensitive ten junction thermopile sensor comprising of twenty K type thermocouples (Alumel/Chromel)with the thermo power of 0.040002 mv/°C fabricated on a barrier terminal with terminal lugs of speciic material havingthickness of 25.4 mm. The developed sensor can measure the temperature difference ΔT (°C) up to 0.01°C. An errorof 15.73% recorded when the thermopile sensor junction is placed under high humidity and the relative humidity (RHvalue) goes to 100%. The generation of humidity is through the Marcet boiler steam process and control with gatevalve. High temperatures have no significant effect on the junction of thermopile sensor

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