Compare the ranges of applications of thermistors, thermocouples, and cold wires. Give examples of temperature measurements for...

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Mechanical Engineering

Compare the ranges of applications of thermistors,thermocouples, and cold wires.
Give examples of temperature measurements for which each of thethree methods would be suitable, but the other two would not.

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Answer:

Let us go to the basics first.

Thermistor temperature range:

Thermistors operate over a relatively limited temperature range, typically -50 to 300°C depending on type of construction and coating.

Example: Thermistor probes are generally used as resistance thermometers.

Thermocouple temperature range:

Depending on the metal wires used, a thermocouple is capable of measuring temperature in the range –200°C to +2500°C.

Example: Most practical temperature ranges, from cryogenics to jet-engine exhaust, can be served using thermocouples.

Cold wire temperature range: They are suitable for temperature ranges of 3°C to 180°C.

Example: For measurement of temperature fluctuations and its application in a thermo-acoustic system.

Thanks!!!


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