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FIBER OPTIC CURRENT SENSOR WITH SPUN FIBER AND TEMPERATURE COMPENSATION
FIBER OPTIC CURRENT SENSOR WITH SPUN FIBER AND TEMPERATURE COMPENSATION
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机译:具有旋转光纤和温度补偿功能的光纤电流传感器
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摘要
FIELD: physics.;SUBSTANCE: fiber optic current sensor with SPUN fiber with high birefringence contains a light source that generates light in the wavelength range, a first linear polarizer that receives light from the light source and forms polarized light. In this case, the phase plate receives light from the first linear polarizer and has a phase delay ρ=n 90°+ε, where n is an integer. In addition, the current sensor comprises a measuring spun fiber wound N times to form a loop placed around the current carrier, the spun fiber has a Verde V constant. Also, the device includes a detector unit configured to determine a phase shift Δφ between two polarized modes of light returning from said measuring fiber, and with the possibility of generating a signal indicative of mentioned current.;EFFECT: improving the temperature compensation and birefringence of the fiber optic sensor.;41 cl, 15 dwg
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机译:领域:物理;实质:具有高双折射SPUN光纤的光纤电流传感器包含一个产生波长范围内的光的光源,一个从光源接收光并形成偏振光的第一线性偏振器。在这种情况下,相板接收来自第一线性偏振器的光并且具有相位延迟ρ= n 90°+ε,其中n是整数。另外,电流传感器包括被缠绕N次以形成围绕电流载体放置的环路的测量的短纤维,该短纤维具有Verde V常数。而且,该设备包括检测器单元,该检测器单元被配置为确定从所述测量光纤返回的两种偏振光之间的相移Δφ,并且有可能产生指示所述电流的信号。效果:改善温度补偿和双折射。光纤传感器。; 41 cl,15 dwg
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