| 螺线管空心线圈电流传感器的研究 |
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| 引用本文： | 曹志辉,周有庆,彭春燕,龚伟.螺线管空心线圈电流传感器的研究[J].磁性材料及器件,2009,40(1). |
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| 作者姓名： | 曹志辉 周有庆 彭春燕 龚伟 |
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| 作者单位： | 湖南大学,电气与信息工程学院,湖南长沙,410082 |
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| 摘 要： | 提出了一种用于测量小电流、带补偿线圈的新型螺线管空心线圈电流传感器,阐述了螺线管空心线圈的基本结构,分析了其结构参数对电磁参数的影响,给出了相关参数的计算公式.螺线管空心线圈输出电压较小且与被测电流相位相差90°,需增加积分电路,以放大输出电压信号并保证相位的一致.利用Matlab对线圈动态特性随参数的变化情况进行了仿真,给出了相应的幅频、相频特性.制作了实验模型,并进行了相关的实验,给出了实验数据,验证了理论分析和实验结果的一致性.实验数据表明该新型带补偿线圈的螺线管空心线圈精度高,线性度较好,抗电磁干扰能力强.
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| 关 键 词： | 螺线管空心线圈 电流传感器 结构参数 电磁参数 频率特性 小电流测量 |
Research on the Spiral Air-core Coil Current Sensor |
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| CAO Zhi-hui,ZHOU You-qing,PENG Chun-yan,GONG Wei.Research on the Spiral Air-core Coil Current Sensor[J].Journal of Magnetic Materials and Devices,2009,40(1). |
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| Authors: | CAO Zhi-hui ZHOU You-qing PENG Chun-yan GONG Wei |
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| Affiliation: | CAO Zhi-hui,ZHOU You-qing,PENG Chun-yan,GONG Wei College of Electrical , Information Engineering,Hunan University,Changsha 410082,China |
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| Abstract: | A new type of spiral air-core coil current sensor with compensating coil was proposed,which could be used in measurement of low current.Its basic structure and relationship between electromagnetic parameters and structural parameters were described,the related formulas for parameter calculation also had been given.An integration circuit was adopted for a guarantee of high quality voltage output with the same phase of the input current.The influences of structural parameters on the dynamic performance of the... |
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| Keywords: | spiral air-core coil current sensor structural parameters electromagnetic parameters frequency characteristics low current measurement |
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