The design of thermistor thermometers with linear calibration
W. R. Beakley · Journal of Scientific Instruments · 1951
Under certain circuit conditions a current or voltage may be obtained which varies almost exactly linearly with the temperature of a thermistor. Equations are given from which may be calculated ( a ) the extent of the range of temperature within which the departure from linearity is less than a specified value, ( b ) the circuit conditions which provide optimum linearity, ( c ) the sensitivity of the circuit in terms of current change per unit temperature change, and ( d ) the maximum permissible current through the thermistor.