Wide Bandwidth Rogowski Current Transducers
Wide Bandwidth Rogowski Current Transducers
复制标题
宽带宽罗氏电流传感器
DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
R. Davis
中科院分区：
文献类型：
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作者：
W. F. Ray;R. Davis
摘要本文是三部分中的第二部分，全面考察了罗氏线圈在宽带宽电流波形测量中的使用。罗氏线圈以前曾用于电流测量的特殊应用，例如持续时间非常短的高电流脉冲，但直到最近才成为适用于电力电子设备的通用传感器。这需要 50 Hz 至至少 1 MHz 的带宽，以获得与标准同轴分流器相当的性能。第一部分研究了罗戈夫斯基线圈的设计和行为。第二部分检查积分器在低频率 (50 Hz) 和高频率 (1 MHz) 下的行为。它引入了一种反馈电路，克服了低频噪声和漂移的问题，并且还表明，通过适当选择运算放大器，带宽可以扩展到 1 MHz 以上。理论噪声含量被量化，并开发了整个传感器的传递函数模型。第三部分提供了...的结果
SummaryThis paper is the second of three parts giving a comprehensive examination of the use of Rogowski coils for wide bandwidth current waveform measurement. Rogowski coils have previously been used for special applications of current measurement such as very short duration high current pulses, but have only recently become available as general purpose transducers suitable for power electronic equipment. This requires a bandwidth of 50 Hz to at least 1 MHz for performance comparable to a standard co-axial shunt. Part I examined the Rogowski coil design and behaviour. Part II examines the integrator behaviour at both low (50 Hz) and high (1 MHz) frequencies. It introduces a feedback circuit which overcomes the problems of low frequency noise and drift and it also shows that with appropriate choice of operational amplifier the bandwidth can be extended beyond 1 MHz. Theoretical noise content is quantified and a transfer function model of the complete transducer is developed. Part III provides results of f...