GB864194A - An indirectly excited electromagnetic transducer - Google Patents

An indirectly excited electromagnetic transducer

Info

Publication number
GB864194A
GB864194A GB31179/58A GB3117958A GB864194A GB 864194 A GB864194 A GB 864194A GB 31179/58 A GB31179/58 A GB 31179/58A GB 3117958 A GB3117958 A GB 3117958A GB 864194 A GB864194 A GB 864194A
Authority
GB
United Kingdom
Prior art keywords
torsional member
ferromagnetic
casings
pick
casing
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.)
Expired
Application number
GB31179/58A
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.)
Vyzkumny A Zkusebni Letecky Ustav AS
Original Assignee
Vyzkumny A Zkusebni Letecky Ustav AS
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 Vyzkumny A Zkusebni Letecky Ustav AS filed Critical Vyzkumny A Zkusebni Letecky Ustav AS
Publication of GB864194A publication Critical patent/GB864194A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/04—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism
    • B06B1/045—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism using vibrating magnet, armature or coil system
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

864,194. Electrical measuring systems. VYZKUMNY A ZKUSEBNI LETECKY USTAV. Sept. 30, 1958 [Oct. 2, 1957], No. 31179/58. Class 40 (1). A transducer for torque measurement comprises an annular core, provided with a toroidal exciting winding and contained within a ferromagnetic casing to which is attached a ferromagnetic, tubular torsional member 1 the ends of the torsional member and of the casing being rigidly and conductively connected so as to form a conductive path around the core. As shown, a pair of annular ferromagnetic cores 5 carry toroidal exciting windings 6 connected to an alternating current source 8 so that an exciting current is induced around an electrical circuit comprising a ferromagnetic rod 3, two ferromagnetic casings 2 and a tubular torsional member 1, creating a rotational magnetic field around the torsional member 1. When a torque Mk is applied to the right-hand casing 2, a longitudinal magnetic component is set up in the torsional member 1 in accordance with the Wiedemann effect, thus inducing a voltage into the pick-up coil 4. Alternatively, the pick-up coil may be wound on the outside of the torsional member 1. In Fig. 2 (not shown), the two casings 2 are fixed and torque is applied to the centre of the torsional member 1 between a pair of pick-up coils 4. In Fig. 3 the casings 32 extend over the whole of the torsional member 31, which is provided with a lever 33 projecting through an aperture between the casings 32.
GB31179/58A 1957-10-02 1958-09-30 An indirectly excited electromagnetic transducer Expired GB864194A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS864194X 1957-10-02

Publications (1)

Publication Number Publication Date
GB864194A true GB864194A (en) 1961-03-29

Family

ID=5456281

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31179/58A Expired GB864194A (en) 1957-10-02 1958-09-30 An indirectly excited electromagnetic transducer

Country Status (1)

Country Link
GB (1) GB864194A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2543766A1 (en) * 1983-03-28 1984-10-05 Inst Francais Du Petrole METHOD FOR TRANSMITTING SIGNAL WITHOUT AN ELECTRICAL CONNECTION THROUGH A CONDUCTIVE WALL, THE SHELL OF A SHIP FOR EXAMPLE, AND DEVICE FOR IMPLEMENTING SAID METHOD

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2543766A1 (en) * 1983-03-28 1984-10-05 Inst Francais Du Petrole METHOD FOR TRANSMITTING SIGNAL WITHOUT AN ELECTRICAL CONNECTION THROUGH A CONDUCTIVE WALL, THE SHELL OF A SHIP FOR EXAMPLE, AND DEVICE FOR IMPLEMENTING SAID METHOD

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