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介绍了磁通环法测量等离子体位移的原理。通过计算由磁通环及其附近小磁探针得到的数据,给出了位移随时间变化的曲线。通过将所得到的等离子体位移的变化趋势与非对称探针和CCD相机的测量结果进行比较,验证了磁通环法测量的正确性。该测量方法已用于HL-2A等离子体位移反馈控制系统。
The principle of magnetic flux ring method for measuring plasma displacement is introduced. By calculating the data obtained from the flux ring and the small magnetic probe nearby, a curve of the displacement with time is given. By comparing the trend of the obtained plasma displacement with that of the asymmetric probe and the CCD camera, the correctness of the flux ring method is verified. This measurement method has been used in the HL-2A plasma displacement feedback control system.