Linearization of thermistor thermometer
Anwar A. Khan · International Journal of Electronics · 1985
A theoretical study of thermistor response linearization incorporating a logarithmic network-based scheme, as well as conventional methods, is presented. The logarithmic network-based scheme exhibits superior performance over the conventional methods. A novel and inexpensive circuit configuration for realizing the logarithmic transfer function suitable for response linearization is described. The proposed circuit offers linear temperature/voltage conversion over a wide dynamic range with an output which is independent of fluctuations in the ambient temperature. Test results are given to support the theoretical conclusions.