GB201113631D0 - Position sensing apparatus and method - Google Patents

Position sensing apparatus and method

Info

Publication number
GB201113631D0
GB201113631D0 GBGB1113631.4A GB201113631A GB201113631D0 GB 201113631 D0 GB201113631 D0 GB 201113631D0 GB 201113631 A GB201113631 A GB 201113631A GB 201113631 D0 GB201113631 D0 GB 201113631D0
Authority
GB
United Kingdom
Prior art keywords
magnetic field
region
relative
field generators
measurement
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Withdrawn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
GBGB1113631.4A
Other versions
GB2493399A (en
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.)
AVX Electronics Technology Ltd
Original Assignee
TT Electronics Technology 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 TT Electronics Technology Ltd filed Critical TT Electronics Technology Ltd
Priority to GB1113631.4A priority Critical patent/GB2493399A/en
Publication of GB201113631D0 publication Critical patent/GB201113631D0/en
Publication of GB2493399A publication Critical patent/GB2493399A/en
Withdrawn legal-status Critical Current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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • 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
    • G01D5/2086—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 two or more coils with respect to two or more other coils
    • 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
    • G01D5/22—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 differentially influencing two coils
    • G01D5/225—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 differentially influencing two coils by influencing the mutual induction between the two coils

Landscapes

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

Abstract

Sensor 1 for sensing the relative position of relatively moveable members (e.g. portions 5,7 of a robot arm 3) wherein: multiple magnetic field generators 13 (e.g. resonant circuits) are fixed relative to the first member and spaced apart over a measurement path or region; receive aerial 17a,b is fixed relative to the second member and defines a detection path or region which overlaps part of the measurement region in dependence on the relative position of the two members (Fig.11); a signal induced in the receive aerial by one of the magnetic field generators is processed to determine the position of that magnetic field generator relative to the detection region; the magnetic field generation properties (e.g. resonant frequencies) of some of the magnetic field generators differ and their arrangement is such that the induced signal indicates the part of the measurement region overlapped by the detection region.
GB1113631.4A 2011-08-05 2011-08-05 Inductive position sensor with multiple resonant circuits of differing resonant frequencies Withdrawn GB2493399A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1113631.4A GB2493399A (en) 2011-08-05 2011-08-05 Inductive position sensor with multiple resonant circuits of differing resonant frequencies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1113631.4A GB2493399A (en) 2011-08-05 2011-08-05 Inductive position sensor with multiple resonant circuits of differing resonant frequencies

Publications (2)

Publication Number Publication Date
GB201113631D0 true GB201113631D0 (en) 2011-09-21
GB2493399A GB2493399A (en) 2013-02-06

Family

ID=44735585

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1113631.4A Withdrawn GB2493399A (en) 2011-08-05 2011-08-05 Inductive position sensor with multiple resonant circuits of differing resonant frequencies

Country Status (1)

Country Link
GB (1) GB2493399A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2520981A (en) * 2013-12-05 2015-06-10 Tt Electronics Technology Ltd Self-calibrating position sensor
DE102013225897A1 (en) * 2013-12-13 2015-06-18 Continental Teves Ag & Co. Ohg Inductive sensor with an arbitrarily long measuring path
DE102013225921A1 (en) * 2013-12-13 2015-07-02 Continental Teves Ag & Co. Ohg Inductive rotation angle and torque sensor with a position transducer unit equipped with oscillating circuits

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2426591B (en) * 2005-05-27 2009-12-30 Tt Electronics Technology Ltd Sensing apparatus and method
DE102006055409A1 (en) * 2006-11-22 2008-05-29 Ab Elektronik Gmbh Inductive sensor for the detection of two coupling elements

Also Published As

Publication number Publication date
GB2493399A (en) 2013-02-06

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)