基于等效局域表面等离激元的无源无线温度传感器

Passive wireless temperature sensor based on equivalent localized surface plasmons

温度是电力系统中设备运行状态的关键参数,高压变电器、电缆接头等电力设备故障的发生常伴随着温度异常升高。对电力设备的温度进行无线实时监测,可以快速发现温度异常变化,有效防止事故发生。无源无线传感器不采用电池供电,有利于降低成本和提高系统的鲁棒性和稳定性。基于等效局域表面等离激元(ELSPs)的无源无线温度传感器,对环境温度变化敏感,可实现对温度变化的实时监测。仿真结果表明:该无源无线温度传感器可有效感知温度变化,保障电力系统安全运行。

Temperature is the key parameter of the operating state in the power system.The occurrence of faults of high-voltage transformer,cable joint and other power equipment is often accompanied by abnormal temperature rise.Wireless real-time monitoring of the temperature can effectively prevent accidents and ensure the safe and stable operation of the equipments.Passive wireless sensors without batteries help reduce costs and improve the robustness and stability of the system.The passive wireless temperature sensor based on the effective localized surface plasmons(ELSPs)is sensitive to the environmental temperature changes,which can realize the real-time monitoring of the temperature changes and ensure the safe operation of the power system.The simulation results verify the feasibility of the scheme and show that the sensor can effectively measure the temperature change.