What is a thermocouple application?

Thermocouple is the most widely used temperature measurement equipment. Research the most popular heat suite application in the industry.

Typical application of thermoelectric puppet
● The R and B thermocouples are suitable for oxidative atmosphere and are easily polluted in other environments.
● T -type can be used for oxidation or restore atmosphere.
● Type J can be used for restore atmosphere. cheapest.
● K type can be used for oxidation atmosphere.
● Type E is the most sensitive. It can be used in the oxidation atmosphere.

Thermocouple advantage
● Low cost
● Small size
● strong
● Wide operation range
● Accurate data
● The large temperature is accurate. Variety
● Fast response

Disadvantage of thermocouple
● Weak output, MV
● The precision of small temperature changes is limited.
● Sensitive to electrical noise
● Non -linear
● Complex conversion from electric potential to temperature.
● Small temperature changes means a small voltage change
● Easy to be affected by noise
● Non -linear
● Calibration changes over time
● Can't use it in the conductivity and use it

Thermocouple summary
● Thermocouple is the most economical component used to measure temperature, and it also provides the highest range.
● The electric momentum generated has nothing to do with the length and diameter of the wire, but noise may be a factor.
● It is not recommended to use the thermocouple for narrow span or small temperature difference measurement.
● For critical temperature measurement, the reference temperature of accurate reference knot is required for measurement and compensation.
● The cost of T/C'S is low, but it should only be used in the case where other elements are not practical.

Thermocouple fault detection
● It may not be detected to be short -circuited on the extension line
● Continuous measurement resistance to pay attention to any changes

Thermocouple voltage curve