發(fā)布時間：2018-03-22 19:35

  本文選題：磁致旋光效應　切入點：光學電流互感器　出處：《中國電機工程學報》2017年08期 　論文類型：期刊論文

【摘要】：為解決不均勻磁場中磁光效應特性在數學上難以準確刻畫的問題,該文建立感應不均勻介質的瓊斯矩陣模型,并據此研究感應不均勻介質特性和不均勻磁場的Faraday旋光效應。研究發(fā)現,不均勻磁場和應力場共同作用下致使旋光介質感應角不守恒,感應不均勻介質瓊斯矩陣級聯形式是復非對角元酉矩陣,可通過本征變換為基于介質感應角、介質不均勻角和整體相移差為整體物理量的無冗余的三元解析式。建立不均勻磁場的Faraday旋光效應的光強測量模型并進行數值仿真與實驗驗證。與均勻磁場情形相比,不均勻磁場對瓊斯矩陣、輸出光強均有明顯影響:瓊斯矩陣出現了介質不均勻角,光強公式出現了不均勻系數。論證實際測量磁場是關于光程磁場的加權積分磁場,對提高光學電流互感器精準測量的實際應用具有參考價值。
[Abstract]:In order to solve the problem that the characteristics of magneto-optic effect in inhomogeneous magnetic field are difficult to describe mathematically, a Jones matrix model of inductive inhomogeneous medium is established in this paper. Based on this, the characteristics of induced inhomogeneous medium and the Faraday optical rotation effect of inhomogeneous magnetic field are studied. It is found that the joint action of inhomogeneous magnetic field and stress field leads to the nonconservation of the inductive angle of optical rotation medium. The inductive nonuniform dielectric Jones matrix cascade form is a complex non-diagonal unitary matrix, which can be converted to a dielectric inductive angle by intrinsic transformation. The dielectric inhomogeneity angle and the global phase shift difference are the non-redundant ternary analytical formulas of the whole physical quantity. The light intensity measurement model of the Faraday optical rotation effect of the inhomogeneous magnetic field is established, and the numerical simulation and experimental verification are carried out. The inhomogeneous magnetic field has obvious influence on the Jones matrix and the output light intensity: the Jones matrix has the medium inhomogeneity angle and the light intensity formula has the inhomogeneous coefficient. It is proved that the actual measurement magnetic field is the weighted integral magnetic field about the optical path magnetic field. It has reference value for improving the practical application of optical current transformer precision measurement.
【作者單位】： 哈爾濱工業(yè)大學電氣工程及自動化學院;遼寧省電力科學研究院;
【基金】：國家自然科學基金項目(11004040) 黑龍江省自然科學基金項目(E201237)~~
【分類號】：TM452
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本文編號：1650075