Ultra-high-precision fiber optic shaft-rate electric field current transformer for ships

Le résumé fourni par la source

This paper analyzes the influencing factors of the output signal-to-noise ratio of the optical fiber current transformer (FOCT) used in SREFC, with the aim of improving the accuracy. A theoretical model of the output signal of the transformer was established. The output signal amplitude is maximized by optimizing the number of turns and the radius of the sensing ring, thereby improving the signal-to-noise ratio and providing a theoretical basis for the practical application of transformers. The experimental results show that by adopting the optimal parameter ratio scheme proposed in this paper, under the ratio of 1%-120% of the 40A rated current, the output signal-to-noise ratio of the transformer is all greater than 40dB, meeting the accuracy requirement of 1%FS. The experiment verifies that the optimal output parameter ratio scheme proposed in this paper can effectively improve the accuracy of the transformer. The optimal parameter matching scheme proposed in this paper can also be extended and applied to other fields of weak current detection.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.