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:
Apr. 06, 2004
Filed:
Oct. 24, 2001
Tomoaki Ito, Tokyo, JP;
Masami Tanaka, Tokyo, JP;
Tadashi Kubota, Tokyo, JP;
Yasuhiro Masuzaki, Tokyo, JP;
Hirose Electric Co., Ltd., Tokyo, JP;
Abstract
A pulse signal generator comprises a magnetic element ( ) capable of producing large Barkhausen jumps; a generating unit for generating a magnetic field, which is changed by the object to be detected ( ) to cause the magnetic element to produce the large Barkhausen jumps; the generating unit consists of a pair of elongated magnet/yoke combinations ( and ) provided on opposite sides of the magnetic element ( ) such that their poles are oriented in opposite directions, forming a detecting area at an end thereof ( A, A); a detecting unit ( ) for detecting the large Barkhausen jumps to produce a corresponding pulse signal; the magnetic element ( ) having a first length between a second length of the magnet/yoke combinations and a half of the second length and provided toward the detecting area; and an adjusting yoke ( ) movable along one of the elongated magnet/yoke combinations ( ).