Microprocessor-based temperature indicator using platinum resistance as the sensor
C. RAMESHU, A. P. SHIVAPRASAD · International Journal of Electronics · 1987
A novel microprocessor-based platinum resistance temperature indicator has been developed and described. This indicator provides a linear performance over a wide dynamic temperature range of − 183.0°C to +200°C with an accuracy of better than ±0.05°C. To sasily carry out the linearization of platinum thermometer through software, the modified Callendar-Van Dusen equation is used. Test results are given to support the theory.