Wireless passive temperature and humidity monitoring device and method

The invention belongs to the field of temperature and humidity monitoring and evaluation, and particularly relates to a wireless passive temperature and humidity monitoring device and method. According to the wireless passive temperature and humidity monitoring device, a thermistor serves as a temperature sensitive element, an interdigital electrode capacitance sensor serves as a humidity sensitive element, impedance changes of the sensitive elements are received through an integrated instrument control end, and therefore monitoring of the temperature and the humidity of the sensor unit side is achieved; the method has the characteristics of no need of damaging a measured structure, high monitoring speed, high stability, low cost, miniaturization and strong field practicability. A wireless passive temperature and humidity monitoring device comprises a sensor unit and an instrument control end. The sensor unit comprises a sensing side multi-turn inductance coil, a thermistor connected in series with the sensin