The characteristics of the platinum rhodium thermocouple and the nature of the work

Platinum-rhodium thermocouple actually can also be used in the industrial thermocouple as precious metal, used mainly for temperature measurement sensors, normally need and temperature transmitter, controller and display instrument etc. Used in conjunction, can form of process control system, directly to measure or control is in the production of steam, gas and fluid medium or the solid surface temperature is measured.

platinum-rhodium thermocouple is mainly made up of two completely different conductor, the two ends together become a loop, if the two junction temperature is different, so is sure to appear thermal electrical currents in the circuit, but if the whole end of thermocouple and the reference side also exists certain temperature, then display on the instrument will instructions out of the thermocouple for temperature of thermoelectric potential and appear. And platinum rhodium thermocouple heat of electric heat, will appear because of measuring the temperature increase and change, its size also will only and thermoelectric materials, as well as the different temperatures at the ends of the relationship, but there is no relationship between hot electrode diameter and length. Although platinum rhodium thermocouple in shape each are not identical, but its basic structure is the same, basic it is by protecting tube, thermal insulation sleeve electrode combination and junction box, etc.