JPS57100330A - Magnetic sensor - Google Patents

Magnetic sensor

Info

Publication number
JPS57100330A
JPS57100330A JP17684580A JP17684580A JPS57100330A JP S57100330 A JPS57100330 A JP S57100330A JP 17684580 A JP17684580 A JP 17684580A JP 17684580 A JP17684580 A JP 17684580A JP S57100330 A JPS57100330 A JP S57100330A
Authority
JP
Japan
Prior art keywords
magnetic
plate
gaps
structural member
magnetic sensor
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
JP17684580A
Other languages
Japanese (ja)
Inventor
Yoshikazu Takekoshi
Takeshi Yagisawa
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 JP17684580A priority Critical patent/JPS57100330A/en
Publication of JPS57100330A publication Critical patent/JPS57100330A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/12—Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
    • G01L1/127—Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress by using inductive means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Magnetic Variables (AREA)

Abstract

PURPOSE:To make the magnetical gaps between a structural member to be measured and a magnetic sensor constant and reduce the influence of the variance in the gaps by mounting a mon-magnetic insulator to each magnetic pole end of the magnetic sensor and providing a shealding plate thereto. CONSTITUTION:A thin plate 6 consisting of an abrasion resistant insulating material and a non-magnetic material is affixed to each magnetic pole end face of a U-shaped magnetic core 3 wound with excitation coils 1 and magnetic flux detection coils 2 to be put in abutment on a structural member 4 applied with a paint film 5 such as rust inhibitor. A shielding plate 7 consisting of a non- magnetic good conductor, for example, copper plate for shielding the magnetic flux leaking between magnetic flux legs is disposed between the magnetic pole legs.
JP17684580A 1980-12-15 1980-12-15 Magnetic sensor Pending JPS57100330A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17684580A JPS57100330A (en) 1980-12-15 1980-12-15 Magnetic sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17684580A JPS57100330A (en) 1980-12-15 1980-12-15 Magnetic sensor

Publications (1)

Publication Number Publication Date
JPS57100330A true JPS57100330A (en) 1982-06-22

Family

ID=16020827

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17684580A Pending JPS57100330A (en) 1980-12-15 1980-12-15 Magnetic sensor

Country Status (1)

Country Link
JP (1) JPS57100330A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150008908A1 (en) * 2012-02-08 2015-01-08 Maps Technology Limited Apparatus and method for measuring properties of a ferromagnetic material
CN104375100A (en) * 2013-08-12 2015-02-25 帅立国 Differential type initial permeability material detection probe
CN108645555A (en) * 2018-08-12 2018-10-12 西南大学 A method of realizing that tractor shear stress senses using magnetic induction

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150008908A1 (en) * 2012-02-08 2015-01-08 Maps Technology Limited Apparatus and method for measuring properties of a ferromagnetic material
US9851265B2 (en) * 2012-02-08 2017-12-26 Ge Oil & Gas Uk Limited Apparatus and method for measuring properties of a ferromagnetic material
CN104375100A (en) * 2013-08-12 2015-02-25 帅立国 Differential type initial permeability material detection probe
CN108645555A (en) * 2018-08-12 2018-10-12 西南大学 A method of realizing that tractor shear stress senses using magnetic induction

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