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The platinum resistance temperature sensor is a thermometer that measures temperature by adjusting its resistance. The resistance-temperature polynomial function R expresses the standard relationship between resistance and temperature, which is supplied in the form of a graduated table because the characteristic curve of the platinum resistor is non-linear (t).
The platinum resistance temperature sensor is a temperature sensor made by using its resistance as a function of temperature. Since the characteristic curve of the platinum resistor is non-linear, the standard relationship between resistance and temperature is given in the form of a graduated table, and is expressed by the resistance-temperature polynomial function R(t). But in the actual measurement, it is convenient to use the temperature-resistance function T(r) for measurement and calculation. The actual use shows that the calculation of this method produces less error, and can improve the running speed and control precision of the temperature measurement and control system well.
The Features of RTD Air Water Temperature Sensor