论文标题
FARADAY效应和法拉第旋转仪表的研究，这是一项高级项目论文
The Study of the Faraday Effect and the Faraday Rotation Ammeter, a Senior Project Thesis
论文作者
论文摘要
Faraday旋转电流表（FRA）实验利用了法拉第效应，以测量给定环境中的电流密度。法拉第效应解释了极化电场通过磁场传播时的旋转。 FRA使用偏振激光源，该激光源耦合到光纤电缆中，然后放置在所需的环境中，以测量由磁场引起的极化角的变化。极化角度的变化可用于找到磁场的强度以及最终创建它的电流水平。 Faraday效应被Verdet常数放大，Verdet常数是一种材料特性，描述了给定培养基的极化角度的度数。该设备旨在测量极光中看到的电流密度。对于该应用，预计估计的电流值约为较低的微型AMPS范围（10-100mA/m^2）。该项目的主要目标是模拟法拉第对线性极化光波传播的效果，测量verdet常数，重建先前的设计，并确定如果改进或替换为新技术，则确定设计的哪些组件可以为FRA提供所需的敏感性。
The Faraday Rotation Ammeter (FRA) experiment takes advantage of the Faraday Effect in order to measure the current density in a given environment. The Faraday Effect explains a rotation of a polarized electric field as it propagates through a magnetic field. The FRA uses a polarized laser source that is coupled into fiber optic cable, then placed in the desired environment to measure the change of polarization angle caused by the magnetic field. The change in the angle of polarization can be used to then find the strength of the magnetic field and ultimately the level of current that created it. The Faraday Effect is amplified by the Verdet Constant, a material property that describes the number of degrees the angle of polarization rotates for a given medium. The device is intended to measure the current density seen in the Aurora. Estimated current values are expected to be around the lower micro-amps range (10-100mA/m^2) for that application. The main goals of the project were to simulate the Faraday Effect on the propagation of the linear polarized light wave, measure the Verdet Constant, re-build the previous design and determine what components of the design if improved or replaced with newer technology could provide the FRA the required sensitivity.
