GB201106492D0 - Encoding device for determining an angular position - Google Patents

Encoding device for determining an angular position

Info

Publication number
GB201106492D0
GB201106492D0 GBGB1106492.0A GB201106492A GB201106492D0 GB 201106492 D0 GB201106492 D0 GB 201106492D0 GB 201106492 A GB201106492 A GB 201106492A GB 201106492 D0 GB201106492 D0 GB 201106492D0
Authority
GB
United Kingdom
Prior art keywords
transmitter
signals
elements
tracks
shifted
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.)
Granted
Application number
GBGB1106492.0A
Other versions
GB2490115A (en
GB2490115B (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.)
Agilent Technologies Inc
Original Assignee
Agilent Technologies Inc
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 Agilent Technologies Inc filed Critical Agilent Technologies Inc
Priority to GB1106492.0A priority Critical patent/GB2490115B/en
Publication of GB201106492D0 publication Critical patent/GB201106492D0/en
Publication of GB2490115A publication Critical patent/GB2490115A/en
Application granted granted Critical
Publication of GB2490115B publication Critical patent/GB2490115B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
    • 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
    • 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
    • G01D5/24—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 capacitance
    • G01D5/241—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 capacitance by relative movement of capacitor electrodes
    • G01D5/2412—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 capacitance by relative movement of capacitor electrodes by varying overlap
    • G01D5/2415—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 capacitance by relative movement of capacitor electrodes by varying overlap adapted for encoders
    • 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
    • G01D5/244—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 characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/249—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 characteristics of pulses or pulse trains; generating pulses or pulse trains using pulse code
    • G01D5/2497—Absolute encoders

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Reciprocating Pumps (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

A rotary encoder including a stator 610 with multiple concentric circular tracks 615, 625, each comprising a different prime number n1, n2 (preferably both greater than 1) of angular sectors bearing respective sets of transmitter elements 620, 630; and a rotor 600 comprising at least two receiver elements 640, 645 for picking up signals that are electrically coupled there-to from transmitter elements of the respective transmitter tracks. The transmitter and receiver elements may be electrodes or coils such that pick-up signals reflect their capacitive or inductive coupling respectively. Drive signals applied to the inner and outer transmitter element sets may have a common frequency or frequencies based thereon, thus avoiding interference. Alternatively the signals may phase-shifted or time-shifted relative to one another or different drive signals may be supplied to each transmitter element within an angular sector. Preferably the encoder determines a piston position in a fluid separation system (810, Fig.8) piston pump (820, Fig.8).
GB1106492.0A 2011-04-18 2011-04-18 Encoding device for determining an angular position Active GB2490115B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1106492.0A GB2490115B (en) 2011-04-18 2011-04-18 Encoding device for determining an angular position

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1106492.0A GB2490115B (en) 2011-04-18 2011-04-18 Encoding device for determining an angular position

Publications (3)

Publication Number Publication Date
GB201106492D0 true GB201106492D0 (en) 2011-06-01
GB2490115A GB2490115A (en) 2012-10-24
GB2490115B GB2490115B (en) 2015-09-16

Family

ID=44147135

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1106492.0A Active GB2490115B (en) 2011-04-18 2011-04-18 Encoding device for determining an angular position

Country Status (1)

Country Link
GB (1) GB2490115B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103528605B (en) * 2013-10-15 2015-11-11 北京航空航天大学 A kind of capacitive absolute rotary encoder
CN104634367B (en) * 2015-03-04 2017-06-13 哈尔滨工业大学 A kind of magneto-electric absolute position transducer of Large central aperture structure and the method for measurement absolute position
US11624362B2 (en) 2015-08-07 2023-04-11 Magpumps Limited Device for pumping fluid
GB2541031B (en) * 2015-08-07 2017-09-06 Magpumps Ltd Gear pump for pumping fluid
RU168335U1 (en) * 2016-07-25 2017-01-30 Акционерное общество "Научно-исследовательский институт Приборостроения имени В.В. Тихомирова" DEVICE FOR MONITORING ANGULAR SENSORS
CN111220186A (en) * 2020-02-10 2020-06-02 重庆中电天时精密装备技术有限公司 Two-channel differential absolute time grating angular displacement encoder
EP4209758A1 (en) * 2022-01-10 2023-07-12 Renesas Electronics America Inc. Inductive position sensor and method for detecting a movement of a conductive target

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7196527B2 (en) * 2004-02-17 2007-03-27 Stridsberg Innovation Ab Redundant compact encoders
US7385389B2 (en) * 2005-04-19 2008-06-10 Mitutoyo Corporation Absolute rotary encoder and micrometer
CN100547354C (en) * 2007-11-26 2009-10-07 桂林市晶瑞传感技术有限公司 The absolute type circle capacitor grid transducer measurement mechanism that is used for Absolute position measurement
US20100148802A1 (en) * 2008-12-15 2010-06-17 Fanuc Ltd Capacitance-type encoder

Also Published As

Publication number Publication date
GB2490115A (en) 2012-10-24
GB2490115B (en) 2015-09-16

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