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.

Date of Patent:
May. 20, 2003

Filed:

Nov. 07, 2001
Applicant:
Inventors:

Tomoaki Ito, Tokyo, JP;

Masami Tanaka, Tokyo, JP;

Tadashi Kubota, Tokyo, JP;

Yasuhiro Masuzaki, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B 7/14 ; G01B 7/30 ;
U.S. Cl.
CPC ...
G01B 7/14 ; G01B 7/30 ;
Abstract

According to the invention there is provided a pulse signal generator comprising a plurality of magnetic elements arranged in an imaginable plane and capable of producing large Barkhausen jumps; a first unit for generating a magnetic field, which is changed by the object to be detected to cause the magnetic elements to produce the large Barkhausen jumps, the first unit consisting of a pair of magnet/yoke combinations provided on opposite sides of said imaginable plane such that their poles are oriented in opposite directions, forming a detecting area at an end thereof; a second unit for detecting the large Barkhausen jumps to produce corresponding pulse signals; and first and second adjusting yokes being movable on one of the magnet/yoke combinations along one of the magnetic elements and on the other of the magnet/yoke combinations along the other of said magnetic elements, respectively.


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