| 摘要 |
<p>PURPOSE:To miniaturize the magnetic field sensor by using a specific Faraday effect material which exhibits a large Verdet's constant value. CONSTITUTION:The Faraday effect material essentially consisting of an HgS- MnS-ZnS alloy is prepd. Namely, ZnS is alloyed to an HgMnS alloy, by which the Faraday effect material having >=2.0min/Oe.cm Verdet's constant value is obtd. Then, the Verdet's constant tens to several tens times larger Verdet's constant than lead glass, BSO crystal, etc., which are the conventional Faraday effect materials is obtd. and, therefore, the magnetic field sensor formed by using this Faraday effect material can reduce the length of the Faraday rotating element to 1/10 to 1/several 10 the length of the conventional elements. The magnetic field sensor is, therefore, miniaturized and the magnetic field measurement is possible even in a narrow place.</p> |
