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FR2238923A1 - Measurement of shaft transmitted torque - is by use of two magnetic tracks and four pickups - Google Patents

Measurement of shaft transmitted torque - is by use of two magnetic tracks and four pickups

Info

Publication number
FR2238923A1
FR2238923A1 FR7327612A FR7327612A FR2238923A1 FR 2238923 A1 FR2238923 A1 FR 2238923A1 FR 7327612 A FR7327612 A FR 7327612A FR 7327612 A FR7327612 A FR 7327612A FR 2238923 A1 FR2238923 A1 FR 2238923A1
Authority
FR
France
Prior art keywords
tracks
shaft
pickups
measurement
rotation
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.)
Withdrawn
Application number
FR7327612A
Other languages
French (fr)
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.)
TOUTAIN GERARD
Original Assignee
TOUTAIN GERARD
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 TOUTAIN GERARD filed Critical TOUTAIN GERARD
Priority to FR7327612A priority Critical patent/FR2238923A1/en
Publication of FR2238923A1 publication Critical patent/FR2238923A1/en
Withdrawn legal-status Critical Current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
    • G01L3/109—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving measuring phase difference of two signals or pulse trains
    • 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
    • G01L3/104—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 permanent magnets

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

The torque transmitted by a rotating shaft is measured by placing two tracks 22, 21, with identical markings onto the shaft, well apart and perpendicular to the axis of rotation. Two or more reading heads, preferably four, are placed in the same line parallel to the axis of the shaft and one opposite each track. In rotation the outputs will differ in time according to the relative twist between the two tracks-and hence on the torque. Preferably the tracks and heads are magnetic and the signals applied to two dual input ORs whose outputs drive the set and reset inputs of a flip flop. Its output is integrated and applied to an opamp with a preset offset voltage to allow for alignment errors.
FR7327612A 1973-07-27 1973-07-27 Measurement of shaft transmitted torque - is by use of two magnetic tracks and four pickups Withdrawn FR2238923A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7327612A FR2238923A1 (en) 1973-07-27 1973-07-27 Measurement of shaft transmitted torque - is by use of two magnetic tracks and four pickups

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7327612A FR2238923A1 (en) 1973-07-27 1973-07-27 Measurement of shaft transmitted torque - is by use of two magnetic tracks and four pickups

Publications (1)

Publication Number Publication Date
FR2238923A1 true FR2238923A1 (en) 1975-02-21

Family

ID=9123255

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7327612A Withdrawn FR2238923A1 (en) 1973-07-27 1973-07-27 Measurement of shaft transmitted torque - is by use of two magnetic tracks and four pickups

Country Status (1)

Country Link
FR (1) FR2238923A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4208904A (en) * 1978-07-17 1980-06-24 Resco, Inc. Method of measuring long shaft torque
DE3821083A1 (en) * 1987-06-22 1989-01-12 Hitachi Ltd TORQUE DETECTING DEVICE
US4805465A (en) * 1986-06-09 1989-02-21 Battelle-Institut E.V. Arrangement for the production of straight-line symmetrical signals

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4208904A (en) * 1978-07-17 1980-06-24 Resco, Inc. Method of measuring long shaft torque
US4805465A (en) * 1986-06-09 1989-02-21 Battelle-Institut E.V. Arrangement for the production of straight-line symmetrical signals
DE3821083A1 (en) * 1987-06-22 1989-01-12 Hitachi Ltd TORQUE DETECTING DEVICE
DE3844577C2 (en) * 1987-06-22 1990-12-06 Hitachi, Ltd., Tokio/Tokyo, Jp

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Legal Events

Date Code Title Description
ST Notification of lapse