A High Sensitive Online Diagnosis System of Vacuum Degree in Vacuum Interrupter
Instrumentation, Measurement, Computer, Communication and Control（2013）
Abstract
Aiming to improve the on-line monitoring sensitivity of vacuum degree in vacuum interrupter, a new detection device has been proposed relied on the theory of shield potential method. The device adopts a rotary electric field sensor to detect the change of direct potential for obtaining the changing information of vacuum degree. The sensitivity of detection system has been improved through modifying the front-end signal collection circuit and handling digital filter processing. Using MATLAB-DSP integrated development environment makes the designed system more convenient and flexible and shortens the development cycle. The results show that the detection system has high sensitivity and strong anti-interference ability.
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Key words
on-line monitoring,high sensitivity,electromagnetic shielding,anti-interference ability,signal conditioning circuits,on-line monitoring sensitivity,new detection device,direct potential change detection,matlab-dsp integrated development environment,computerised monitoring,online diagnosis system,electric sensing devices,vacuum interrupter,digital signal processing chips,rotary electric field sensor,high sensitive online diagnosis,digital filters,shield potential method,detection system,detection device,frontend signal collection circuit,vacuum degree,vacuum interrupters,online monitoring sensitivity,development cycle,digital filter processing,direct potential,shield potential,electric potential,electric fields
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