| 一种新型光纤电流传感器的实验研究 |
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| 引用本文： | 田玉江,阙文修,刘蒙青,简水生.一种新型光纤电流传感器的实验研究[J].北京交通大学学报(自然科学版),1993(2). |
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| 作者姓名： | 田玉江 阙文修 刘蒙青 简水生 |
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| 作者单位： | 北方交通大学光波技术研究所，北方交通大学光波技术研究所，北方交通大学光波技术研究所，北方交通大学光波技术研究所 |
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| 摘 要： | 利用在感应线圈内加入带气隙的铁磁材料,将大电流线性地转换成感应电压。利用铌酸锂晶体(LN)在电场作用下的线性电光效应,测出感应电压的大小.实验研究表明:调整铁磁材料气隙的间隔和LN晶体的半波电压,可满足不同测量范围的要求,并具有较好的线性.
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| 关 键 词： | 光导纤维 电光效应 电流传感器/铁磁材料 |
A New Type of Fiber-Optic Current Sensor |
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| Tian Yujiang Que Wenxiu Liu Mengqing Jian Shuigheng.A New Type of Fiber-Optic Current Sensor[J].JOURNAL OF BEIJING JIAOTONG UNIVERSITY,1993(2). |
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| Authors: | Tian Yujiang Que Wenxiu Liu Mengqing Jian Shuigheng |
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| Institution: | Institute of Lightwave Technology |
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| Abstract: | A new type of fiber-optic high intensity current sensor is presented in this paper. The current intensity is changed into induction voltage by the induction coil in which the ferromagnetic substance with a gap is inserted. The induction voltage is detected based on the linear clectro-optic effect of LiNbO_3 Experimentallay, it is shown that the sensor can meet the requirements of different measuring ranges by changing the gap spacing and the half-wave voltage of LiNbO_3 crystal. The sensor system has rather good linearity. |
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| Keywords: | optical fiber electro-optic effect current senser/ferromagnetic subrtance |
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