等离子体微波干涉仪借微波束经过等离子体,探测由于等离子体引起的相位变化,给出等离子体平均电子线密度.在目前多种高温等离子体诊断手段中,由于微波干涉仪对等离子体干扰小,结果显示直观,操作简单方便,因而它已经成为一种常规的诊断手段.传统的微波干涉仪的工作原理如图1所示 Plasma microwave interferometer by the microwave beam through the plasma to detect changes due to plasma phase, the plasma average electron density is given in a variety of high-temperature plasma diagnostic tools, the microwave interferometer on the plasma interference small , The results show that intuitive, easy to operate, so it has become a routine diagnostic tool. The traditional microwave interferometer works as shown in Figure 1