A new hardware approach for the linearization of remote thermistor temperature-voltage characteristic
Tapan Kr. Maiti · International Journal of Electronics · 2008
Present active circuitry for the linearization of thermistor temperature-voltage characteristic has drawbacks concerning the effect of connecting lead wire resistances, self-heating effect due to continuous excitation current in the sensing thermistor, ambient temperature variations and temperature dependent reverse saturation current both in transistorized logarithmic amplifier and Field Effect Transistor. In order to overcome these problems, a new hardware approach for the linearization of remote thermistor has been proposed. The experimental results show the good linearity throughout the temperature range of thermistor.