JPS56150369A - Magnetic polarity measuring device - Google Patents

Magnetic polarity measuring device

Info

Publication number
JPS56150369A
JPS56150369A JP5338880A JP5338880A JPS56150369A JP S56150369 A JPS56150369 A JP S56150369A JP 5338880 A JP5338880 A JP 5338880A JP 5338880 A JP5338880 A JP 5338880A JP S56150369 A JPS56150369 A JP S56150369A
Authority
JP
Japan
Prior art keywords
ics
hall
measurement
character
operating
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
JP5338880A
Other languages
Japanese (ja)
Inventor
Isao Kishimoto
Toshio Uno
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP5338880A priority Critical patent/JPS56150369A/en
Publication of JPS56150369A publication Critical patent/JPS56150369A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
    • G01R33/07—Hall effect devices

Abstract

PURPOSE:To simplify measurement work and prevent the occurrence of measurement miss by disposing magnetism sensors and a high magnetic permeability yoke to a head part in a distance-variable manner, discriminating the polarity obtained by the output of this head and displaying the same. CONSTITUTION:If the leading end of the measuring head part 7 of a body is approached to the magnetic pole to be measured, and a switch 3 is closed by operating a push button 2, a power source is supplied from a battery 4 to respective Hall ICs 8, 9. At this time, a transistor 8f is turned on by the Hall voltage from the Hall element 8a and therefore an LED5 corresponding to a character N turns on a light. When the magnetic pole is of reverse polarity, the LED6 corresponding to a character S is lighted by the Hall voltage from the Hall element 9a. If a yoke 10 is moved closer to or apart from the ICs 8, 9 by operating a knob 13, the magnetic flux number of the ICs 8, 9 changes and this makes sensitivity adjustment possible. Hence, the adverse influence by the nearbly weak magnetic fields is eliminated by lowering the sensitivity and the measurement is made accurate.
JP5338880A 1980-04-21 1980-04-21 Magnetic polarity measuring device Pending JPS56150369A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5338880A JPS56150369A (en) 1980-04-21 1980-04-21 Magnetic polarity measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5338880A JPS56150369A (en) 1980-04-21 1980-04-21 Magnetic polarity measuring device

Publications (1)

Publication Number Publication Date
JPS56150369A true JPS56150369A (en) 1981-11-20

Family

ID=12941435

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5338880A Pending JPS56150369A (en) 1980-04-21 1980-04-21 Magnetic polarity measuring device

Country Status (1)

Country Link
JP (1) JPS56150369A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103308872A (en) * 2013-05-13 2013-09-18 华南理工大学 Combined type magnetic field sensor and weak magnetic field measuring device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103308872A (en) * 2013-05-13 2013-09-18 华南理工大学 Combined type magnetic field sensor and weak magnetic field measuring device

Similar Documents

Publication Publication Date Title
JPS5424073A (en) Magnetism detecting apparatus
EP0357013A3 (en) Magnetic field measuring circuit
JPS5772008A (en) Position sensor
CH640386GA3 (en)
JPS56150369A (en) Magnetic polarity measuring device
US3349323A (en) Apparatus and methods employing magnetic reed switches and static and varying bias fields for detecting magnetic phenomena
JPS57128808A (en) Distance measuring equipment
JPS56129873A (en) Magnetic polarity measuring apparatus
JPS56132502A (en) Fix detecting probe
SU524086A1 (en) Temperature indicator
SU842666A1 (en) Device for checking part demagnetization
JPS54127363A (en) Portable electronic watch
JPS5638755A (en) Sample location displaying device
SU744699A1 (en) Device for monitoring mechanism working member position
JPS5651681A (en) Measuring instrument for magnetic characteristic
JPS56132575A (en) Polarity measuring apparaus
JPS5349989A (en) Superconductive coil
SU1012164A1 (en) Ferromagnetic material magnetic permeability measuring device
JPS5679270A (en) Magnetic polarity-measuring apparatus
SU676957A1 (en) Automatic device for measuring maximum specific power of magnetic materials
JPS55144505A (en) Magnetic scale device
SU842649A1 (en) Method of measuring magnetic field strength
SU756466A1 (en) Device for non-destructive inspection of ferromagnetic materials
KR200199329Y1 (en) A compass join dosimeter
SU941915A1 (en) Device for measuring energy losses in super-conducting magnets