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    • 7. 发明公开
    • 아크 감지 장치와 아크 감지 방법
    • 电弧检测装置和电弧监测方法
    • KR1020090042576A
    • 2009-04-30
    • KR1020070108417
    • 2007-10-26
    • 주식회사 플라즈마트
    • 김형준이상원김재현
    • H05H1/30H05H1/32
    • H01J37/32944H01J37/32082H05H1/46H05H2001/4645
    • An arc detecting apparatus and an arc sensing method is provided to monitor the abnormality of the plasma process by determining the generation of arc. An arc detecting apparatus comprises a sensor and a processing unit. The sensor measures the electric signal of the current or voltage of the transmission line. The processing unit processes the voltage signal or the current signal(SV',SI') which is the output signal of sensor and determines the generation of arc. The processing unit processes the voltage signal or the current signal, and produces the envelope signal, and determines the generation of arc by using the envelope signal corresponding to arc in the load. The processing unit comprises a pre-processing unit(25) and a determining unit(10). The pre-processing unit processes the voltage signal or the current signal, and produces the ARC detection signal(OUT), the voltage envelope signal, and the current envelope signal(Vrms,Irms). The determining unit determines the generation of arc by using width and/or the slope of the current envelope signal and/or the voltage envelope signal.
    • 提供电弧检测装置和电弧检测方法,通过确定电弧的产生来监测等离子体处理的异常。 电弧检测装置包括传感器和处理单元。 传感器测量传输线的电流或电压的电信号。 处理单元处理作为传感器的输出信号的电压信号或电流信号(SV',SI'),并确定电弧的产生。 处理单元处理电压信号或电流信号,并产生包络信号,并通过使用与负载中的电弧相对应的包络信号来确定电弧的产生。 处理单元包括预处理单元(25)和确定单元(10)。 预处理单元处理电压信号或电流信号,并产生ARC检测信号(OUT),电压包络信号和电流包络信号(Vrms,Irms)。 确定单元通过使用当前包络信号和/或电压包络信号的宽度和/或斜率来确定电弧的产生。