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Content Provider | IEEE Xplore Digital Library |
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Author | Takayama, A. Umehara, T. Yuguchi, A. Kato, H. Mohri, K. Uchiyama, T. |
Copyright Year | 1965 |
Abstract | An integrated thin film MI (magneto-impedance) sensor head constructed with a combination of a thin film NiFe MI element and thin film bias and negative feedback coils using a micro-plating technology, has been developed in order to solve the problems of an amorphous wire MI head. The sensor head showed a very high field-detection sensitivity of about 0.41%/A/m (33%/Oe) magnetized with pulse current and a small hysteresis for the change of an external field. We have fabricated a differential type sensor module using a pair of the thin film MI sensor heads. The output voltage of the sensor has a good linearity within the range of /spl plusmn/80 A/m, and the voltage was 25mV/A/m(2.0V/Oe), and has small thermal drift within 0.1 A/m/spl deg/C. The consumption power of the sensor module was 165 mW. |
Sponsorship | IEEE Magnetics Society |
Starting Page | 3643 |
Ending Page | 3645 |
Page Count | 3 |
File Size | 278471 |
File Format | |
ISSN | 00189464 |
Volume Number | 35 |
Issue Number | 5 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 1999-09-01 |
Publisher Place | U.S.A. |
Access Restriction | One Nation One Subscription (ONOS) |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Thin film sensors Magnetic sensors Magnetic heads Amorphous magnetic materials Voltage Negative feedback Coils Amorphous materials Wire Hysteresis |
Content Type | Text |
Resource Type | Article |
Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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