[go: up one dir, main page]

GB1406217A - Position determining devices - Google Patents

Position determining devices

Info

Publication number
GB1406217A
GB1406217A GB5314971A GB5314971A GB1406217A GB 1406217 A GB1406217 A GB 1406217A GB 5314971 A GB5314971 A GB 5314971A GB 5314971 A GB5314971 A GB 5314971A GB 1406217 A GB1406217 A GB 1406217A
Authority
GB
United Kingdom
Prior art keywords
coils
phase
coil
conductors
emf
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
GB5314971A
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.)
NAT RES DEV
National Research Development Corp UK
Original Assignee
NAT RES DEV
National Research Development Corp UK
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 NAT RES DEV, National Research Development Corp UK filed Critical NAT RES DEV
Priority to GB5314971A priority Critical patent/GB1406217A/en
Publication of GB1406217A publication Critical patent/GB1406217A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
    • G01D5/204—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the mutual induction between two or more coils
    • G01D5/2073—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the mutual induction between two or more coils by movement of a single coil with respect to two or more coils
    • G01D5/208—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the mutual induction between two or more coils by movement of a single coil with respect to two or more coils using polyphase currents

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Linear Motors (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

1406217 Measuring displacements electrically NATIONAL RESEARCH DEVELOPMENT CORP 8 Nov 1972 [16 Nov 1971] 53149/71 Heading G1N A linear displacement transducer comprises a series of parallel conductors 10, Fig.1, connected to a 3-phase A.C. supply to produce a linear developed 3-phase magnetic field, in which is located a base plate 18 carrying two elongate coils 14, 16 with their long sides arranged parallel to the magnetic lines of force. Hence no EMF is induced in these sides and the EMF's in the end parts are neutralized by connecting coils 14, 16 in series. A loop 20 of magnetic material is disposed round the adjacent long sides of coils 14, 16 and is skewed so that it extends diagonally between two adjacent conductors 10. Thus a current is induced in coil 20 which induces a voltage in coils 14, 16, whose phase is indicative of the position of coil 20 within one pitch of six conductors 10. The coil 20 is attached by a rod 26 to a test member whose longitudinal position is therefore indicated by the phase of the voltage in coils 14, 16. Other embodiments are described using a different magnetic member 20 and a single coil 14, 16.
GB5314971A 1971-11-16 1971-11-16 Position determining devices Expired GB1406217A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5314971A GB1406217A (en) 1971-11-16 1971-11-16 Position determining devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5314971A GB1406217A (en) 1971-11-16 1971-11-16 Position determining devices

Publications (1)

Publication Number Publication Date
GB1406217A true GB1406217A (en) 1975-09-17

Family

ID=10466811

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5314971A Expired GB1406217A (en) 1971-11-16 1971-11-16 Position determining devices

Country Status (1)

Country Link
GB (1) GB1406217A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4282485A (en) 1978-05-22 1981-08-04 Pneumo Corporation Linear variable phase transformer with constant magnitude output
US4697144A (en) * 1984-04-19 1987-09-29 Verify Electronics Limited Position sensing apparatus
EP0443148A1 (en) * 1990-02-09 1991-08-28 Robert Bosch Gmbh Position sensor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4282485A (en) 1978-05-22 1981-08-04 Pneumo Corporation Linear variable phase transformer with constant magnitude output
US4697144A (en) * 1984-04-19 1987-09-29 Verify Electronics Limited Position sensing apparatus
EP0443148A1 (en) * 1990-02-09 1991-08-28 Robert Bosch Gmbh Position sensor

Similar Documents

Publication Publication Date Title
GB1377953A (en) Electro-inductive transducers for measurement of displacement
GB1482131A (en) Transducers
GB1122763A (en) Inductive angular position transmitter
US3247456A (en) Directional electric tachometer including means for producing asymmetrical pulses
ES470479A1 (en) Device for detecting magnetic fields and method of making same
GB1406217A (en) Position determining devices
GB1413688A (en) Analogue function generator
GB1357867A (en) Angular position transducers
IT974102B (en) RESONANCE CIRCUIT FOR MEASURING THE CHARACTERISTICS OF MAGNETS AND CONDUCTIVE MATERIAL MAGNETS CO OR EDDY CURRENT
GB1228590A (en)
SU473899A1 (en) Contactless linear motion transducer
GB1336311A (en) Measurement of the change in longitudinal force in a rail
ES193633U (en) Device for measuring tensions inside a structure. (Machine-translation by Google Translate, not legally binding)
SU1525595A1 (en) Contactless converter of strong d.c.
SU525111A1 (en) Device for multiplying angles
SU462083A1 (en) Linear displacement transducer
SU399878A1 (en) FUNCTIONAL TRANSFORMER TRANSFER IN THE PHASE OF THE OUTPUT SIGNAL
SU412499A1 (en) DEVICE FOR MEASURING DEFORMATION OF EFFORTS
SU446892A1 (en) Induction linear displacement sensor
SU555277A1 (en) Angular displacement transducer to electrical signal
SU586314A1 (en) Displacement transducer
SU702235A1 (en) Linear motion transducer
SU521534A1 (en) The method of measuring the magnetic flux in the gap of the electrodynamic vibrator magnetic circuit
JPS6435728A (en) Optical head device
SU475096A1 (en) Device for measuring variations of the earth's magnetic field

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees