公开(公告)号：WO1984003010A1

公开(公告)日：1984-08-02

申请号：PCT/US1983002025

申请日：1983-12-23

Applicant: WESTERN ELECTRIC COMPANY, INC.

Inventor： WESTERN ELECTRIC COMPANY, INC. ,  CHEN, Ho-Sou ,  INOUE, Akihisa ,  JIN, Sungho ,  SHERWOOD, Richard, Curry

IPC: H03K03/00

CPC classification number: H03K17/97 ,  G06K7/082 ,  H01F1/0304 ,  H03K3/45

Abstract: Magneto-electric devices producing an electrical signal in response to a change in a magnetic field may preferably produce uniform pulses independent of the rate of change of the magnetic field. Devices of this type have been made using the so-called Wiegand effect, but such devices are not as sensitive as those used having amorphous magnetic material. Devices made of ferromagnetic metallic element (13) usually have essentially amorphous structure which has been plastically deformed by cold deformation, are more likely to prevent a device from responding to strong magnetic fields such that these devices are more sensitive. Among those devices having a ferromagnetic element are keys, credit cards and proximity sensors.