Theoretical Study Of Effect Of Temperature Features Of Reflecting Medium Layer On Sensitivity Of Optical Current Transformers

In this paper the latest progress and existing problems in the field of optical current sensor is reviewed and analyzed, the effects of temperature features of polarization-preserving reflecting medium layer on sensitivity of a bulk glass optical current transformers(BGOCT) are investigated, the results are reported. The temperature features is one of the important factors that affect the sensitivity of OCS. The measurement of the temperature features of polarization-preserving reflecting medium layer is significant to the design of BGOCT. However, the report about the method of measuring the temperature features of polarization-preserving reflecting medium layer is rarely to seen. The aim of this paper is to fill the blank in this area of research. In this paper, the author proposes the method of measuring the temperature features of polarization-preserving reflecting medium layer and researches this method by means of theoretical analysis, computer simulation and experimental investigation. The results show that the system sensitivity changed in a certain range with the temperature varying. Therefore some technical means of temperature compensation of control to the BGOCT's sensing head should be taken in the design procedures for practical systems.