Write principal merit of a pt- resistance
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A platinum resistance thermometer (PRT) is a temperature sensor that determines temperature by measuring the electrical resistance of a platinum wire.
The electrical resistance of platinum increases linearly with temperature. This electrical resistance of a platinum wire is then measured by passing a current through it and by measuring the voltage across it.
The resistance of a platinum wire is calibrated to give a temperature reading.It has a wide range and is very accurate. It is best for measuring small steady temperatures.
The electrical resistance of platinum increases linearly with temperature. This electrical resistance of a platinum wire is then measured by passing a current through it and by measuring the voltage across it.
The resistance of a platinum wire is calibrated to give a temperature reading.It has a wide range and is very accurate. It is best for measuring small steady temperatures.
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