Title:
【発明の名称】パルス信号発生装置
Document Type and Number:
Japanese Patent JP3352366
Kind Code:
B2
Abstract:
A pulse signal generator comprises a magnetic element (1) capable of causing a large Barkhausen jump, a detector (2) provided in relation to the magnetic element, a magnetic field source (3) provided in the vicinity of the magnetic element to produce a biasing magnetic field which causes a predetermined magnetization of the magnetic element, and a magnetic circuit forming member (4) provided in the vicinity of the magnetic element to produce a main magnetic field which cause a large Barkhausen jump in the magnetic element such that movement of the object to be detected (10) changes the main magnetic field of the magnetic circuit forming member thereby causing a large Barkhausen jump to provide a pulse signal.
Inventors:
Akihiro Goto
Shoji Koyama
Tomoaki Ito
Shoji Koyama
Tomoaki Ito
Application Number:
JP25154097A
Publication Date:
December 03, 2002
Filing Date:
September 17, 1997
Export Citation:
Assignee:
Hirose Cherry Precision Co., Ltd.
Hirose Electric Co., Ltd.
Hirose Electric Co., Ltd.
International Classes:
G01P3/481; G01D5/18; G01D5/20; G01D5/245; G01R33/02; G01V3/08; H01L43/00; H03K3/45; H03K17/95; (IPC1-7): G01D5/245; G01P3/481; G01R33/02; H01L43/00
Domestic Patent References:
| JP5264686A | ||||
| JP4122378U |
Other References:
【文献】英国特許出願公開2125970(GB,A)
Attorney, Agent or Firm:
Minoru Nakamura (6 outside)