CA2032584A1 - Compensation des champs magnetiques statiques ou quasi-statiques dans les transducteurs de force et de couple magnetoelastiques - Google Patents

Compensation des champs magnetiques statiques ou quasi-statiques dans les transducteurs de force et de couple magnetoelastiques

Info

Publication number
CA2032584A1
CA2032584A1 CA2032584A CA2032584A CA2032584A1 CA 2032584 A1 CA2032584 A1 CA 2032584A1 CA 2032584 A CA2032584 A CA 2032584A CA 2032584 A CA2032584 A CA 2032584A CA 2032584 A1 CA2032584 A1 CA 2032584A1
Authority
CA
Canada
Prior art keywords
static
quasi
compensation
magnetic fields
magnetization
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
CA2032584A
Other languages
English (en)
Other versions
CA2032584C (fr
Inventor
Bertil Hoffman
Sverker Nidmark
Jan Palmquist
Jarl Sobel
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.)
ABB AB
Original Assignee
Asea Brown Boveri AB
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 Asea Brown Boveri AB filed Critical Asea Brown Boveri AB
Publication of CA2032584A1 publication Critical patent/CA2032584A1/fr
Application granted granted Critical
Publication of CA2032584C publication Critical patent/CA2032584C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/02—Rotary-transmission dynamometers
    • G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
    • G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
    • G01L3/101—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means
    • G01L3/105—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means involving inductive 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
    • G01L1/125—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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/02—Rotary-transmission dynamometers
    • G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
    • G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
    • G01L3/101—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means
    • G01L3/102—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means involving magnetostrictive means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Measuring Magnetic Variables (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
CA002032584A 1989-12-21 1990-12-18 Compensation des champs magnetiques statiques ou quasi-statiques dans les transducteurs de force et de couple magnetoelastiques Expired - Lifetime CA2032584C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8904307A SE465185B (sv) 1989-12-21 1989-12-21 Foerfarande jaemte anordning foer detektering av och skydd mot inverkan av stoerande statiska och kvasistatiska magnetfaelt paa maetning med kraft- och vridmomentgivare
SE8904307-9 1989-12-21

Publications (2)

Publication Number Publication Date
CA2032584A1 true CA2032584A1 (fr) 1991-06-22
CA2032584C CA2032584C (fr) 1999-04-27

Family

ID=20377828

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002032584A Expired - Lifetime CA2032584C (fr) 1989-12-21 1990-12-18 Compensation des champs magnetiques statiques ou quasi-statiques dans les transducteurs de force et de couple magnetoelastiques

Country Status (7)

Country Link
US (1) US5122742A (fr)
EP (1) EP0434089B1 (fr)
JP (1) JP3030096B2 (fr)
CA (1) CA2032584C (fr)
DE (1) DE69012075T2 (fr)
ES (1) ES2063239T3 (fr)
SE (1) SE465185B (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5902934A (en) * 1990-12-10 1999-05-11 Sensortech, L.P. Phase magnitude signal detector
US5525907A (en) * 1995-03-17 1996-06-11 Hughes Missile Systems Company Active impulse magnetometer with bipolar magnetic impulse generator and fast fourier transform receiver to detect sub-surface metallic materials
EP0863728A4 (fr) * 1995-11-28 2000-11-08 Univ America Catholic Protection de systemes vivants contre les champs electromagnetiques
SE504842C2 (sv) * 1995-12-18 1997-05-12 Asea Brown Boveri Vridmomentgivare bestående av en givaraxel med en cirkulärpolariserad magnetisk ring fixerad vid givaraxelns periferi
US6422096B1 (en) 1998-08-06 2002-07-23 Blh Electronics, Inc. Load cell
GB9924046D0 (en) 1999-10-11 1999-12-15 Fast Technology Gmbh Torque measurement apparatus
US6341534B1 (en) * 2000-03-03 2002-01-29 Ford Motor Company Integrated two-channel torque sensor
SE517238C2 (sv) * 2000-09-27 2002-05-14 Abb Ab Vridmomentgivare och användning av en vridmomentgivare
DE10161803A1 (de) * 2001-12-15 2003-07-10 Hilti Ag Elektromagnetischer Drehmomentsensor
US7222034B2 (en) * 2003-09-19 2007-05-22 Tektronix, Inc. In-circuit measurement of saturation flux density Bsat, coercivity Hc, and permiability of magnetic components using a digital storage oscilloscope
DE102006017727A1 (de) * 2006-04-15 2007-10-25 Daimlerchrysler Ag Berührungslose Sensorvorrichtung und Verfahren zur Bestimmung von Eigenschaften einer Welle
GB2484458A (en) 2010-10-04 2012-04-18 Thorn Security Commissioning detector units of an alarm system by means of a remote infrared based communication tool
US9983073B2 (en) * 2013-07-05 2018-05-29 Torque And More (Tam) Gmbh Solid borne sound wave phase delay comparison

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3792348A (en) * 1971-11-19 1974-02-12 W Rollwitz Method of determining stress in a ferromagnetic member using magnetoabsorption
US3890564A (en) * 1972-07-04 1975-06-17 Okura Denki Co Ltd Apparatus for inducing eddy current in a semiconductor wafer for measuring the electric conductivity or resistivity thereof
US3925725A (en) * 1974-09-23 1975-12-09 Mogilevsky V M Oscilloscopic ferrometer
US4573012A (en) * 1983-02-14 1986-02-25 General Electric Company Method and apparatus for measuring core loss of a laminated ferromagnetic structure
US4506554A (en) * 1983-06-07 1985-03-26 Asea Aktiebolag Magnetoelastic torque transducer
CH664632A5 (de) * 1984-08-16 1988-03-15 Landis & Gyr Ag Schaltungsanordnung zur kompensation von schwankungen des uebertragungsfaktors eines magnetfeldsensors.
JPS61162726A (ja) * 1985-01-11 1986-07-23 Toyota Central Res & Dev Lab Inc 応力検出装置
US4760745A (en) * 1986-12-05 1988-08-02 Mag Dev Inc. Magnetoelastic torque transducer

Also Published As

Publication number Publication date
DE69012075D1 (de) 1994-10-06
SE8904307L (sv) 1991-06-22
CA2032584C (fr) 1999-04-27
SE465185B (sv) 1991-08-05
US5122742A (en) 1992-06-16
SE8904307D0 (sv) 1989-12-21
ES2063239T3 (es) 1995-01-01
JP3030096B2 (ja) 2000-04-10
EP0434089A1 (fr) 1991-06-26
EP0434089B1 (fr) 1994-08-31
DE69012075T2 (de) 1995-03-30
JPH04120431A (ja) 1992-04-21

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