Passive Wireless Temperature Online Detection System for Power Equipment based on SAW Technology

During the long-term operation of the switch box, the internal overheating phenomenon of the switch contacts and busbar joints may be caused by aging or excessive contact current, which can eventually cause major safety accidents and often lead to catastrophic consequences. The SAWSAW temperature measurement sensor studied in this paper adopts the passive mode, that is, there is no inductive battery to supply the working switching power supply for the sensor. If there is no power battery in the sensor, there is no danger of heat or explosion, and it is free of maintenance in the later stage, so it is anti-interference. Strong ability. It adopts an integrated structure, that is, the temperature sensing element and the launching device are integrated.