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Which of the following instrument can be used for the measurement of a temperature above 1500°K?

  • Thermoelectric pyrometer instrument can be used for the measurement of a temperature above 1500°K.
  • A thermoelectric pyrometer is an instrument that can be used for non-contact temperature measurement in high-temperature applications, typically above 1000°C (or 1273 K).
  • The principle behind thermoelectric pyrometry is based on the Seebeck effect, which is the generation of an electromotive force (EMF) in a circuit made of two dissimilar conductors when there is a temperature difference between the junctions of the conductors.
  • The advantage of thermoelectric pyrometry is that it can measure temperature without contact, which is useful for high-temperature applications where direct contact may not be possible or may affect the measurement.
  • Thermoelectric pyrometers can typically measure temperatures up to around 2500°C (or 2773 K) depending on the type of thermocouple used and the design of the instrument.