Title: Ferromagnetic-article sensor
Application Number: 98100535 Application Date: 1998.02.17
Publication Number: 1191317 Publication Date: 1998.08.26
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01R33/07
Applicant(s) Name: NEC Corp. Address:
Inventor(s) Name: Hideto Konno
Attorney & Agent: mu dejun
Abstract:
    The present invention relates to a ferromagnetic-article sensor comprises a pathway-forming means for defining a pathway for a ferromagnetic-article; a magnet disposed adjacent to the pathway, forming a magnetic field; and a magnetic field detection element for detecting a part of a magnetic field formed by the magnet, the part of the magnetic field extending parallel to the plane of the magnetic field detection element; wherein the pathway-forming means, the magnet, and the magnetic field detection element are arranged such that the magnetic field detection element detects modification of magnetic fields by the ferromagnetic-article when the ferromagnetic-article travels through the pathway, distorting the magnetic field.
Time: 27
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