Abstract:

A new method for measuring the high-voltage isolating parameters by using the LiNbO3 optical-intensity modulator on the HL-2A tokamak ECRH system is introduced. The measurement results indicate the isolation voltage more than 100kV, the responding time less than 0.1μs and the linearity error less than 1%. Some problems and the feasibility of the method are also discussed.

Key words: Gyrotrons, High-voltage isolation, LiNbO3 modulator

摘要：

介绍了用铌酸锂(LiNbO₃)高速光强度调制器测量HL-2A装置ECRH系统高压隔离电参数的新方法，测量结果表明：隔离100kV高压的响应时间小于0.1μs，线性误差小于1%，并对器件存在的问题和实际应用的可行性进行了分析。

关键词: 回旋管, 高压隔离, 铌酸锂调制器