【摘要】：針對ns級脈沖電流信號的測量,設(shè)計了一種帶磁芯的新型自積分式羅氏線圈,具有信噪比高、動態(tài)范圍廣等優(yōu)點。屏蔽盒開氣隙防止渦流。屏蔽盒外層采用聚氨酯進(jìn)行整體封裝,聚氨酯層厚度大于1.5mm,可耐受大于20kV的沖擊電壓。采用高壓方波發(fā)生器與Pearson4100線圈對羅氏線圈標(biāo)定。羅氏線圈的參數(shù)為:靈敏度0.018 8V/A,最高上升時間小于20ns,方波脈寬300ns,最大峰值電流300A。
[Abstract]:A new type of self-integrated Roche coil with magnetic core is designed for the measurement of ns pulse current signal, which has the advantages of high signal-to-noise ratio (SNR) and wide dynamic range. The shield box opens the air gap to prevent the eddy current. The outer layer of shield box is encapsulated by polyurethane. The thickness of polyurethane layer is more than 1.5 mm, which can withstand impulse voltage larger than 20kV. Roche coil was calibrated by high voltage square wave generator and Pearson4100 coil. The parameters of Roche coil are as follows: sensitivity 0.018 V / A, maximum rise time less than 20ns, square wave pulse width 300ns, maximum peak current 300A.
【作者單位】： 中國科學(xué)院電工研究所;中國科學(xué)院大學(xué);中國科學(xué)院電力電子與電氣驅(qū)動重點實驗室;
【基金】：國家重點基礎(chǔ)研究發(fā)展計劃項目 國家自然科學(xué)基金項目(51277171,51237007,51577178)
【分類號】：TM55
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本文編號：2391986