Thermocouple temperature sensor and thermal resistor temperature sensor is the main difference

Thermocouple temperature sensor and thermal resistor temperature sensor are often confusing, xiamen branch's son today will give you with the difference:

in general, the thermal resistance for platinum thermal resistance, which are frequently used models of Pt100, other such as Cu50 usage. Thermal resistance is based on the principle of temperature resistance size changes over temperature measurement,

there is a conductor wiring resistance compensation, namely common three wire connection, have positive and negative side, respectively, a thread was right in the end, the other end compensation side two wires to connect. In - common temperature measurement range Between 50 to + 300.

thermocouple type are many, such as S, R, B, K, N, etc. , it is the principle of the different parallel metal plates according to the temperature change will produce a faint induction electric potential difference, this difference can be based on corresponding relationship into temperature values.

common model is K series, because it has a good linear relationship. General thermocouple temperature measurement range is wide, suitable for temperature at 500 degrees above, can meet the 0 1000 + temperature measurement, some can be up to 2000 +. Such as boiler with thermocouple temperature measurement. Its for the connection of two lines, have positive and negative side, is actually different temperature measurement range