JPS57165717A - Detecting device for stress - Google Patents

Detecting device for stress

Info

Publication number
JPS57165717A
JPS57165717A JP4941581A JP4941581A JPS57165717A JP S57165717 A JPS57165717 A JP S57165717A JP 4941581 A JP4941581 A JP 4941581A JP 4941581 A JP4941581 A JP 4941581A JP S57165717 A JPS57165717 A JP S57165717A
Authority
JP
Japan
Prior art keywords
sensitive body
exciting
coil
core
detecting
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
JP4941581A
Other languages
Japanese (ja)
Inventor
Shigeru Kamiya
Kiyoshi Fukui
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.)
Yazaki Corp
Original Assignee
Yazaki Corp
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 Yazaki Corp filed Critical Yazaki Corp
Priority to JP4941581A priority Critical patent/JPS57165717A/en
Publication of JPS57165717A publication Critical patent/JPS57165717A/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)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

PURPOSE:To avoid the direct detection of the leaking component of the magnetic flux which is imparted from an exciting coil by a detecting coil, by providing the end part of an exciting core for a sensitive body and the end part of a detecting core so that they face to each other and are shifted, and winding the exciting coil and the detecting coil at a right angle to each other. CONSTITUTION:A first closed magnetic path is constituted by combining the exciting core 12 and the sensitive body 11, and a second closed magnetic path is constituted by combining the exciting core 14 and the sensitive body 11. Part of the magnetic flux imparted by the exciting coil 13 is supplied to the second closed magnetic path. When tensile stress is acted on applying points P1 and P2 of the sensitive body 11, the sensitive body 11 is deformed, and its cross sectional are is reduced. Said reduction results in the reduction in magnetic resistance, and the magnetic flux passing the detecting coil 15 is changed. Said change is detected across both ends t3 and t4 of the detecting coil as a change in the value of an induced voltage. Thus the value of the tensile stress imparted to the sensitive body 11 can be measured.
JP4941581A 1981-04-03 1981-04-03 Detecting device for stress Pending JPS57165717A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4941581A JPS57165717A (en) 1981-04-03 1981-04-03 Detecting device for stress

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4941581A JPS57165717A (en) 1981-04-03 1981-04-03 Detecting device for stress

Publications (1)

Publication Number Publication Date
JPS57165717A true JPS57165717A (en) 1982-10-12

Family

ID=12830428

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4941581A Pending JPS57165717A (en) 1981-04-03 1981-04-03 Detecting device for stress

Country Status (1)

Country Link
JP (1) JPS57165717A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008241614A (en) * 2007-03-28 2008-10-09 Nissan Motor Co Ltd Magnetostrictive stress sensor and its manufacturing method
JP2010078480A (en) * 2008-09-26 2010-04-08 Nissan Motor Co Ltd Magnetostrictive stress sensor
JP2010078481A (en) * 2008-09-26 2010-04-08 Nissan Motor Co Ltd Magnetostrictive stress sensor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008241614A (en) * 2007-03-28 2008-10-09 Nissan Motor Co Ltd Magnetostrictive stress sensor and its manufacturing method
JP2010078480A (en) * 2008-09-26 2010-04-08 Nissan Motor Co Ltd Magnetostrictive stress sensor
JP2010078481A (en) * 2008-09-26 2010-04-08 Nissan Motor Co Ltd Magnetostrictive stress sensor

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