Study on Passive Wireless Sensors for Safety Monitoring of Infrastructures

在这项工作中，我们开发了一种无线无源智能传感器，用于监测桥梁、隧道和电力设备等基础设施的安全状况。该传感器测量温度和应变等物理化学数据，并通过电磁波将其发送给阅读器。这种传感器可以工作在接收电磁能量的大约10微瓦的功率下。结果表明，该样机的通信距离可达10米左右，并能较高精度地传送被测温度。

In this work, we have developed a wireless passive smart sensor which monitors safety conditions of infrastructures such as bridges, tunnels and electrical power apparatuses. This sensor measures physical and chemical data such as temperature and strain and sends them to readers by electromagnetic waves. This sensor can work with about ten micro watts receiving electromagnetic energies. It is shown that the prototype has about ten meters communication distance and can send the measured temperature with good accuracy.