Design and implementation of an integrated switched-oscillator impulse generator with application in wireless passive electric field sensors

近几十年来，电力需求的不断增长促使高压设备满负荷运行，而电力系统公用事业则期望提供高质量和可靠的电力。为了避免因设备故障和停电造成的停电和干扰，在线、分布式和低成本的状态监测、诊断和保护在现代电力系统中至关重要。无源无线传感器是增强现有状态监测方法的新兴设备。这些传感器不需要内部电源。它们被一种外部能量源激活并审问。使用询问器将信号发送到传感器，并分析从传感器反射的接收信号，该信号包含传感器收集的信息。

The increasing demand for electric power over the last decades has urged the high voltage apparatus to operate at full load while the power system utilities are expected to provide high quality and reliable electric power. In order to avoid power outages and disturbances caused by equipment failures and outages, online, distributed, and low-cost condition monitoring, diagnostics, and protection are crucial in modern power systems. Passive, wireless sensors are emerging devices to enhance the existing condition-monitoring methods. These sensors do not require an internal power source. They are activated and interrogated by an external source of energy. Using an interrogator, a signal is transmitted to the sensor and the received signal reflected from the sensor is analyzed that contains information collected by the sensor.