【作者】 王洪宇；

【导师】 王政平；

【作者基本信息】 哈尔滨工程大学 ， 光学工程， 2005， 硕士

【摘要】 光学电流传感器(Optical Current Sensor：OCS)是利用光学技术直接或间接地测量电流的装置。近年来光学电流传感器研究取得了可喜的进展。 光学玻璃电流传感头中反射相移与线性双折射对光学玻璃电流互感器性能的有害影响是阻碍其实用化的重要障碍。对此迄今尚未寻求出可以实际应用的解决办法。因此提出直接采用法拉第镜作为一次电流传感元件的无玻璃传感头设计方案，分析了该系统的工作原理，对输出光的偏振态进行了仿真，给出其光路设计、工作原理的理论推导，并进行了实验验证。实验结果表明该系统的线性良好，证明了我们的理论分析是合理的、可行的，并讨论了其优缺点。本研究结果对于改进现有块状玻璃电流互感器的性能，开发实用型光学电流互感器具有一定的参考意义。更多还原

【Abstract】 Optical Current Sensor, OCS for short, is the kind of equipment measuring current directly or indirectly by utilizing optical technology. And the research on it has good achievement in recent years.One of the predominant hinders for the practical applications of bulk glass optical current transformers is the harmful influences of the reflection-induced retardance and linear birefringence existing inside the glass current sensing elements. Up till now, there are not suitable solutions, which can be practically used. To solve this problem, a new design of optical current sensor without bulk glass current sensing head, using a Faraday Mirror directly as the primary current sensing element, is proposed, the theoretical analysis of the working principle, the simulation results of the polarization state of the output light are presented, the optical setup is shown, the mathematical expression of the working principle is derived, the experimental result is given. A linear system is proved by experiments. It is also shown that our new design is reasonable and feasible. The advantages and shortcomings of the design are discussed in this paper. The results reported here might be a reference on the performance improvement of the present bulk glass OCT and the development of practically applicable optical current transformers.更多还原