| 摘要 |
<p>PURPOSE: To obtain an optical current transformer which is hardly affected by such environmental influence as variation of temperature and vibration small in dimension, and capable of being produced by a simple method. CONSTITUTION: In the optical current transformer measuring the Faraday rotation of light in a wave transmission path 2 surrounding current, the wave transmission path 2 is designed as a unit type optical single mode wave transmission path. It is desirable to combine measuring device elements such as polarizers 9 and 13, a mirror 8, a Y-shape coupler 10, etc., with a base 1. By combining them, a sensor element SE capable of producing with a simple method and hardly affected by the environment such as temperature variation and vibration, etc., in wide range is obtained.</p> |
