Mind your P's and Q's

被引：5
|
作者：
Carnovale, D [1 ]
Ellis, D [1 ]
机构：
[1] Cutler Hammer, Pittsburgh, PA USA
来源：
IEEE INDUSTRY APPLICATIONS MAGAZINE | 2003年 / 9卷 / 02期
关键词：
Circuit resonance - Data acquisition - Electric frequency measurement - Electric potential - Harmonic generation - Laptop computers - Logic gates - Oscillographs - Phase shift - Q meters - Transients - Waveform analysis;
D O I：
10.1109/MIA.2003.1180950
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Twenty-five years ago, capturing multiple channels of simultaneous data required multiple channels or a very specialized, expensive, and customized data-acquisition system. In order to capture power-quality (PQ) events, very sophisticated methods are used to invoke simultaneous triggering across all recording channels. This paper discusses the evolution of triggering PQ instrumentation and the advanced triggering systems available for portable and fixed panel-mounted meters.
引用
收藏
页码：55 / 63
页数：9
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