The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 23, 1990
Filed:
Apr. 11, 1988
Senji Shimanuki, Atsugi, JP;
Susumu Hashimoto, Tokyo, JP;
Shunji Nomura, Yokohama, JP;
Tomohisa Yamashita, Kawasaki, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
The magnetic field sensor is described for sensing the magnetic field, which comprises a light source part, a magnetic field detection part which contains a magnetooptic element consisting of a magnetic materials having a magnetooptic effect, and a light measurement part which measures the light that has been radiated from the light source part and has passed through the magnetic field detection part, is characterized in that the magnetooptic element is arranged such that its easy axis of magnetization is at substantially right angles to the direction of the magnetic field to be measured. The sensor can measure in a wide range of magnetic field with a high degree of accuracy and high sensitivity.