GB2394295B - Sensing apparatus and method - Google Patents

Sensing apparatus and method

Info

Publication number
GB2394295B
GB2394295B GB0308257A GB0308257A GB2394295B GB 2394295 B GB2394295 B GB 2394295B GB 0308257 A GB0308257 A GB 0308257A GB 0308257 A GB0308257 A GB 0308257A GB 2394295 B GB2394295 B GB 2394295B
Authority
GB
United Kingdom
Prior art keywords
sensing apparatus
sensing
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 - Fee Related
Application number
GB0308257A
Other versions
GB2394295A (en
GB0308257D0 (en
Inventor
Mark Anthony Howard
Colin Stuart Sills
Darran Kreit
David Alun James
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
Sensopad Technologies Ltd
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 Sensopad Technologies Ltd, TT Electronics Technology Ltd filed Critical Sensopad Technologies Ltd
Publication of GB0308257D0 publication Critical patent/GB0308257D0/en
Priority to PCT/GB2003/004504 priority Critical patent/WO2004036147A2/en
Priority to EP03753812A priority patent/EP1552249A2/en
Priority to US10/531,499 priority patent/US7298137B2/en
Priority to AU2003271973A priority patent/AU2003271973A1/en
Publication of GB2394295A publication Critical patent/GB2394295A/en
Application granted granted Critical
Publication of GB2394295B publication Critical patent/GB2394295B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01D5/243—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 phase or frequency of ac
    • 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
    • G01D5/2093—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 using polyphase currents

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)
GB0308257A 2002-10-16 2003-04-09 Sensing apparatus and method Expired - Fee Related GB2394295B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/GB2003/004504 WO2004036147A2 (en) 2002-10-16 2003-10-16 Position sensing apparatus and method
EP03753812A EP1552249A2 (en) 2002-10-16 2003-10-16 Position sensing apparatus and method
US10/531,499 US7298137B2 (en) 2002-10-16 2003-10-16 Position sensing apparatus and method
AU2003271973A AU2003271973A1 (en) 2002-10-16 2003-10-16 Position sensing apparatus and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0224090A GB0224090D0 (en) 2002-10-16 2002-10-16 Sensing apparatus & method

Publications (3)

Publication Number Publication Date
GB0308257D0 GB0308257D0 (en) 2003-05-14
GB2394295A GB2394295A (en) 2004-04-21
GB2394295B true GB2394295B (en) 2005-02-16

Family

ID=9946034

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0224090A Ceased GB0224090D0 (en) 2002-10-16 2002-10-16 Sensing apparatus & method
GB0308257A Expired - Fee Related GB2394295B (en) 2002-10-16 2003-04-09 Sensing apparatus and method

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0224090A Ceased GB0224090D0 (en) 2002-10-16 2002-10-16 Sensing apparatus & method

Country Status (1)

Country Link
GB (2) GB0224090D0 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4324012B2 (en) 2004-05-20 2009-09-02 日立オムロンターミナルソリューションズ株式会社 Displacement detection device and displacement detection method
GB2426591B (en) * 2005-05-27 2009-12-30 Tt Electronics Technology Ltd Sensing apparatus and method
US11537242B2 (en) 2018-03-29 2022-12-27 Cirrus Logic, Inc. Q-factor enhancement in resonant phase sensing of resistive-inductive-capacitive sensors
US20200064160A1 (en) * 2018-08-22 2020-02-27 Cirrus Logic International Semiconductor Ltd. Detecting and adapting to changes in a resonant phase sensing system having a resistive-inductive-capacitive sensor
US11402946B2 (en) 2019-02-26 2022-08-02 Cirrus Logic, Inc. Multi-chip synchronization in sensor applications
US10948313B2 (en) 2019-02-26 2021-03-16 Cirrus Logic, Inc. Spread spectrum sensor scanning using resistive-inductive-capacitive sensors
US11536758B2 (en) 2019-02-26 2022-12-27 Cirrus Logic, Inc. Single-capacitor inductive sense systems
US11579030B2 (en) 2020-06-18 2023-02-14 Cirrus Logic, Inc. Baseline estimation for sensor system
US11835410B2 (en) 2020-06-25 2023-12-05 Cirrus Logic Inc. Determination of resonant frequency and quality factor for a sensor system
US11868540B2 (en) 2020-06-25 2024-01-09 Cirrus Logic Inc. Determination of resonant frequency and quality factor for a sensor system
US11619519B2 (en) 2021-02-08 2023-04-04 Cirrus Logic, Inc. Predictive sensor tracking optimization in multi-sensor sensing applications
US11821761B2 (en) 2021-03-29 2023-11-21 Cirrus Logic Inc. Maximizing dynamic range in resonant sensing
US11808669B2 (en) 2021-03-29 2023-11-07 Cirrus Logic Inc. Gain and mismatch calibration for a phase detector used in an inductive sensor
US11507199B2 (en) 2021-03-30 2022-11-22 Cirrus Logic, Inc. Pseudo-differential phase measurement and quality factor compensation
US11979115B2 (en) 2021-11-30 2024-05-07 Cirrus Logic Inc. Modulator feedforward compensation
US11854738B2 (en) 2021-12-02 2023-12-26 Cirrus Logic Inc. Slew control for variable load pulse-width modulation driver and load sensing

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2359139A (en) * 1999-06-15 2001-08-15 Scient Generics Ltd Position encoder
GB2374424A (en) * 2001-10-30 2002-10-16 Gentech Invest Group Ag Induction sensing apparatus and method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2359139A (en) * 1999-06-15 2001-08-15 Scient Generics Ltd Position encoder
GB2374424A (en) * 2001-10-30 2002-10-16 Gentech Invest Group Ag Induction sensing apparatus and method

Also Published As

Publication number Publication date
GB2394295A (en) 2004-04-21
GB0224090D0 (en) 2002-11-27
GB0308257D0 (en) 2003-05-14

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20130409