Advantages and disadvantages of thermocouple

Advantages:

There are some advantages of thermocouple which are given below.

  • The thermocouple is less expensive than RTD.
  • It has wide temperature ranges.
  • It has good reproducibility.
  • The temperature range is 270 to 2700 degree Celsius.
  • It has rugged construction.
  • It does not required bridge circuit.
  • It has good accuracy.
  • It has high speed of response.

Disadvantages:

There are some disadvantages of thermocouple which are given below.

  • The stray voltage pick up is possible.
  • As output voltage is very small, it needs amplification.
  • The cold junction and lead compensation is essential.
  • It shows non linearity.
Thermocouple

Thermocouple

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