FR2380545A1 - Procede de mesure de l'effort axial applique a un corps ferromagnetique et montage electromagnetique pour la mise en oeuvre de ce procede - Google Patents

Procede de mesure de l'effort axial applique a un corps ferromagnetique et montage electromagnetique pour la mise en oeuvre de ce procede

Info

Publication number
FR2380545A1
FR2380545A1 FR7803540A FR7803540A FR2380545A1 FR 2380545 A1 FR2380545 A1 FR 2380545A1 FR 7803540 A FR7803540 A FR 7803540A FR 7803540 A FR7803540 A FR 7803540A FR 2380545 A1 FR2380545 A1 FR 2380545A1
Authority
FR
France
Prior art keywords
wire
axial force
standard
standard wire
magneto
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.)
Granted
Application number
FR7803540A
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English (en)
Other versions
FR2380545B1 (fr
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Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2380545A1 publication Critical patent/FR2380545A1/fr
Application granted granted Critical
Publication of FR2380545B1 publication Critical patent/FR2380545B1/fr
Granted 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
    • G01L1/14—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
    • 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
    • G01L1/125—Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress by using magnetostrictive means
    • 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

Mesure de l'effort axial appliqué à un corps ferromagnétique. Au moyen d'un montage comprenant un solénoïde inducteur 1 et un solénoïde récepteur 2, disposés autour du fil 6 dont l'effort axial est mesuré, l'on mesure la force électromotrice induite dans le solénoïde récepteur 2 par l'induction magnétique engendrée par un champ magnétique périodique dû à un courant alimentant le solénoïde inducteur 1 et l'on extrapole l'indication de l'effort axial appliqué sur base d'une caracteristique magnéto-élastique dressée, dans des conditions électromagnétiques similaires, au cours d'une phase d'étalonnage. Application aux bétons pré-contraints.
FR7803540A 1977-02-09 1978-02-08 Procede de mesure de l'effort axial applique a un corps ferromagnetique et montage electromagnetique pour la mise en oeuvre de ce procede Granted FR2380545A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE851220 1977-02-09

Publications (2)

Publication Number Publication Date
FR2380545A1 true FR2380545A1 (fr) 1978-09-08
FR2380545B1 FR2380545B1 (fr) 1982-02-12

Family

ID=3861481

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7803540A Granted FR2380545A1 (fr) 1977-02-09 1978-02-08 Procede de mesure de l'effort axial applique a un corps ferromagnetique et montage electromagnetique pour la mise en oeuvre de ce procede

Country Status (1)

Country Link
FR (1) FR2380545A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1906551A (en) * 1930-01-08 1933-05-02 Forest Alfred V De Magnetic testing method and means
US3311818A (en) * 1963-03-11 1967-03-28 Api Instr Company Non-contact apparatus for magnetically measuring strain
FR2275761A1 (fr) * 1974-06-20 1976-01-16 Asea Ab Procede pour l'alimentation de capteurs magnetiques

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1906551A (en) * 1930-01-08 1933-05-02 Forest Alfred V De Magnetic testing method and means
US3311818A (en) * 1963-03-11 1967-03-28 Api Instr Company Non-contact apparatus for magnetically measuring strain
FR2275761A1 (fr) * 1974-06-20 1976-01-16 Asea Ab Procede pour l'alimentation de capteurs magnetiques

Also Published As

Publication number Publication date
FR2380545B1 (fr) 1982-02-12

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