对于GIS局部放电的测量，超高频法是一种较为有效的方法。
The ultra-high-frequency(UHF) method has been proved an effective way for the measurement of partial discharge in GIS.
提出采用光学移相办法测量超高频调制光相位特性的一种方法。它具有精度高、实用性强等特点。
A method for measuring the phase characteristics of ultrahigh frequency modulating light by optical phase shift is proposed. It has the properties of high precision and strong practicability.
提出采用光学移相办法测量超高频调制光相位特性的一种方法。
A method for measuring the phase characteristics of ultrahigh frequency modulating light by optical phase shift is proposed.
通过大量的性能测试和试验证明，超高频传感器既能够有效的避开空气中的电晕干扰，又能够方便有效的测量到GIS内部局部放电的信号。
Experiments show that the UHF sensor can effectively avoid the effect from corona discharges in air, and can conveniently detect PD signals in GIS.
通过大量的性能测试和试验证明，超高频传感器既能够有效的避开空气中的电晕干扰，又能够方便有效的测量到GIS内部局部放电的信号。
Experiments show that the UHF sensor can effectively avoid the effect from corona discharges in air, and can conveniently detect PD signals in GIS.
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