A New Method of Resistance Temperature Measurement Based on Zero-Input Response of RL Circuit

摘要

Pointing to the issue that the traditional resistance temperature measurement based on principle of bridge balance has disadvantages such as complex and high costs, A new method of temperature measurement based on zero-input response of The RL circuit is proposed. Microcontroller is used to control the zero-input response of the simple RL series circuit, so as to establish the relationship between the zero-input response time and the resistance. The complex hardware is replaced by the simple software.