WO2008081572A1 - Magnetostriction torque sensor and torque detection method - Google Patents

Magnetostriction torque sensor and torque detection method Download PDF

Info

Publication number
WO2008081572A1
WO2008081572A1 PCT/JP2007/001430 JP2007001430W WO2008081572A1 WO 2008081572 A1 WO2008081572 A1 WO 2008081572A1 JP 2007001430 W JP2007001430 W JP 2007001430W WO 2008081572 A1 WO2008081572 A1 WO 2008081572A1
Authority
WO
WIPO (PCT)
Prior art keywords
torque
drive signal
resonance circuit
outputted
magnetostriction
Prior art date
Application number
PCT/JP2007/001430
Other languages
French (fr)
Japanese (ja)
Inventor
Kazuhiro Yamakawa
Tetsuo Kanda
Original Assignee
Azuma Systems 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 Azuma Systems Co., Ltd. filed Critical Azuma Systems Co., Ltd.
Priority to JP2008529393A priority Critical patent/JP4208206B2/en
Publication of WO2008081572A1 publication Critical patent/WO2008081572A1/en

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
    • G01L3/102—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
    • 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N35/00—Magnetostrictive devices
    • H10N35/101—Magnetostrictive devices with mechanical input and electrical output, e.g. generators, sensors

Abstract

Detection precision of a magnetostriction torque sensor is enhanced. A drive signal is outputted to a first resonance circuit (2) consisting of a first detection coil (L1) and a first capacitor (C1), variation in permeability is detected in a first direction based on the phase deviation component of a free vibration wave outputted from the first resonance circuit (2) in a damping manner after stopping of output of the drive signal. A drive signal is outputted to a second resonance circuit (3) consisting of a second detection coil (L2) and a second capacitor (C2), variation in permeability is detected in a second direction based on the phasedeviation component of a free vibration wave outputted from the second resonance circuit (3) in a damping manner after stopping of output of the drive signal, and then the torque of a rotating shaft (S) is detected based on the difference in permeability between the first direction and the second direction.
PCT/JP2007/001430 2007-01-02 2007-12-19 Magnetostriction torque sensor and torque detection method WO2008081572A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008529393A JP4208206B2 (en) 2007-01-02 2007-12-19 Magnetostrictive torque sensor and torque detection method

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2007000007 2007-01-02
JP2007-000007 2007-01-02
JP2007-019347 2007-01-30
JP2007019347 2007-01-30
JP2007125457 2007-05-10
JP2007-125457 2007-05-10

Publications (1)

Publication Number Publication Date
WO2008081572A1 true WO2008081572A1 (en) 2008-07-10

Family

ID=39588262

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/001430 WO2008081572A1 (en) 2007-01-02 2007-12-19 Magnetostriction torque sensor and torque detection method

Country Status (2)

Country Link
JP (1) JP4208206B2 (en)
WO (1) WO2008081572A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3301427A1 (en) * 2016-09-30 2018-04-04 Torque and More (TAM) GmbH Offset compensation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63317731A (en) * 1987-06-19 1988-12-26 Toyota Autom Loom Works Ltd Torque detector
JPH02501615A (en) * 1987-10-07 1990-05-31 アンドラエ　レオンベルク　ゲゼルシャフト　ミット　ベシュレンクテル　ハフツング Method and apparatus for exciting a resonant circuit
JPH04334115A (en) * 1990-12-21 1992-11-20 Detra Sa Inductive proximity sensor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63317731A (en) * 1987-06-19 1988-12-26 Toyota Autom Loom Works Ltd Torque detector
JPH02501615A (en) * 1987-10-07 1990-05-31 アンドラエ　レオンベルク　ゲゼルシャフト　ミット　ベシュレンクテル　ハフツング Method and apparatus for exciting a resonant circuit
JPH04334115A (en) * 1990-12-21 1992-11-20 Detra Sa Inductive proximity sensor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3301427A1 (en) * 2016-09-30 2018-04-04 Torque and More (TAM) GmbH Offset compensation

Also Published As

Publication number Publication date
JP4208206B2 (en) 2009-01-14
JPWO2008081572A1 (en) 2010-04-30

Similar Documents

Publication Publication Date Title
WO2009031285A1 (en) Inertia force sensor
WO2006053244A3 (en) Torque sensor assembly
EP1189023A3 (en) Inertial rate sensor and method with improved tuning fork drive
WO2004036147A3 (en) Position sensing apparatus and method
EP1857826A3 (en) Capacitance difference detecting circuit and mems sensor
WO2004072653A3 (en) Sensing apparatus and method
WO2006016144A3 (en) Sensing apparatus and method
WO2009051879A3 (en) Ultrasonic method to verify the interference fit of fasteners
FI20065484A (en) Process for manufacturing microelectromechanical component and micromechanical component
ATE488747T1 (en) AUTOMATIC TEST OF AN ELECTRONIC CIRCUIT ARRANGEMENT OF A CAPACITIVE SENSOR, AND ELECTRONIC CIRCUIT ARRANGEMENT FOR EXECUTING THE TEST
WO2008094809A3 (en) Magnetic speed, direction, and/or movement extent sensor
CN108761134A (en) A kind of linearisation output detecting method of weak coupling resonant transducer
EP2259074A3 (en) Magnetic speed sensor with cost effective and fast fabrication
WO2007003766A8 (en) Device for counting the rotations of an object in a referential, and method for controlling one such device
US20150276373A1 (en) Resolver excitation circuit
WO2008081573A1 (en) Magnetostriction torque sensor and torque detection method
WO2012109197A3 (en) Method for monitoring the condition of a vibration sensor
WO2012021485A3 (en) Method and apparatus for measuring fluid process variable in a well
WO2008081572A1 (en) Magnetostriction torque sensor and torque detection method
CN104931034B (en) Micro-mechanical gyroscope bandwidth broadning method based on dipole penalty method
JP2008271771A5 (en)
WO2009037607A3 (en) Magnetoresistive sensor device and method of processing a signal thereof
WO2009047887A1 (en) Composite sensor for detecting angular velocity and acceleration
WO2008081570A1 (en) Stress sensor and stress detection method
Wang et al. Wireless and passive gyroscope based on surface acoustic wave gyroscopic effect

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 2008529393

Country of ref document: JP

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07849860

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07849860

Country of ref document: EP

Kind code of ref document: A1