*B* or *β* Parameter Equation

NTC thermistors can also be characterised with the *B* (or *β*) parameter equation, which is essentially the Steinhart Hart equation with, and ,

Where the temperatures are in kelvins and *R*_{0} is the resistance at temperature *T*_{0} (25 °C = 298.15 K). Solving for *R* yields:

or, alternatively,

where .

This can be solved for the temperature:

The B-parameter equation can also be written as . This can be used to convert the function of resistance vs. temperature of a thermistor into a linear function of vs. . The average slope of this function will then yield an estimate of the value of the *B* parameter.

Read more about this topic: Thermistor

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