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Influences of linear birefringence on bulk glass current sensors with return-back optical paths

机译:线性双折射对带有返回光路的块状玻璃电流传感器的影响

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The effects of linear birefringence (LB) upon Bulk Glass Optical Current Sensors (BGOCSs) with return-back optical path designs, such as the Orthoconjugate Reflection (OCR)-typed, the Direct Reflection (DR)-typed and the Roof-prism Reflection (RPR)-typed BGOCS design, are theoretically analyzed and compared with that of the BGOCS with a single-loop optical path in this paper. The results show that the return-back dual-loop current sensing designs with conventional signal processing scheme of "-/+" cannot eliminate the harmful effects of the LB thoroughly, if suitable signal processing schemes which can separate the LB from Faraday effect are not used.
机译:线性双折射(LB)对具有返回光路设计的大玻璃光学电流传感器(BGOCS)的影响,例如正交共轭反射(OCR)型,直接反射(DR)型和屋顶棱镜反射型本文从理论上分析了(RPR)型BGOCS设计,并将其与具有单回路光路的BGOCS设计进行了比较。结果表明,如果没有合适的能够将LB与法拉第效应区分开的信号处理方案,具有常规信号处理方案“-/ +”的返回双回路电流传感设计不能彻底消除LB的有害影响。用过的。

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