Statistical Analysis of the Reliability of Current Measurement Results with the “Current—Polarization-Dependent Loss” Optical Fiber Sensor

In this paper, selected methods for the statistical assessment of distribution parameters using estimators were briefly described. Selected aspects of the theory of measurement uncertainty, the determination of standard uncertainty of type A, type B, total and expanded were discussed. The structure of the “current—polarization-dependent loss” optical fiber sensor is presented, which can be used to measure current in power lines. The method of measuring polarizing attenuation using an optical reflectometer OTDR is discussed. The results of research deal with the influence of the light wave, optical fiber length and the angle of rotation of the plane of polarization (polarization angle) on the value of polarizing attenuation are presented. Conclusions from the experiment were formulated regarding the selection of optical fiber and optical window so that the polarization angle was within a specific interval.