JPS6474476A - Magnetic detecting device - Google Patents

Magnetic detecting device

Info

Publication number
JPS6474476A
JPS6474476A JP23173787A JP23173787A JPS6474476A JP S6474476 A JPS6474476 A JP S6474476A JP 23173787 A JP23173787 A JP 23173787A JP 23173787 A JP23173787 A JP 23173787A JP S6474476 A JPS6474476 A JP S6474476A
Authority
JP
Japan
Prior art keywords
voltage
induced
sensor
coil
sensor coil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP23173787A
Other languages
Japanese (ja)
Inventor
Yukio Senda
Toshihiro Nomura
Hisaji Shinohara
Juichi Mitani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP23173787A priority Critical patent/JPS6474476A/en
Publication of JPS6474476A publication Critical patent/JPS6474476A/en
Pending legal-status Critical Current

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Landscapes

  • Measuring Magnetic Variables (AREA)

Abstract

PURPOSE:To perform magnetic detection with superior temperature characteristics by winding an exciting coil and a sensor coil around amorphous magnetic alloy and detecting the rising time and falling time of a voltage induced across the sensor coil. CONSTITUTION:A high frequency current is supplied from a high frequency current source to the exciting coil 2 wound around a magnetic core 1 made of amorphous magnetic alloy and when an external magnetic field Hex operates on the magnetic core 1, the voltage (e) is induced across the sensor coil 3. Differentiating circuits 11 and 12 generates a voltage obtained by differentiating the induced voltage (e) across a resistance 12 to which the input terminal of a comparator 12 is connected. The phase difference between the maximum point and minimum point of the induced voltage or time t1 is detected by the sensor 3 to detect the polarity and intensity of the external magnetic field Hex continuously.
JP23173787A 1987-09-16 1987-09-16 Magnetic detecting device Pending JPS6474476A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23173787A JPS6474476A (en) 1987-09-16 1987-09-16 Magnetic detecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23173787A JPS6474476A (en) 1987-09-16 1987-09-16 Magnetic detecting device

Publications (1)

Publication Number Publication Date
JPS6474476A true JPS6474476A (en) 1989-03-20

Family

ID=16928248

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23173787A Pending JPS6474476A (en) 1987-09-16 1987-09-16 Magnetic detecting device

Country Status (1)

Country Link
JP (1) JPS6474476A (en)

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