GB2135060B - Sensing rotation of a shaft electromagnetically - Google Patents

Sensing rotation of a shaft electromagnetically

Info

Publication number
GB2135060B
GB2135060B GB08401700A GB8401700A GB2135060B GB 2135060 B GB2135060 B GB 2135060B GB 08401700 A GB08401700 A GB 08401700A GB 8401700 A GB8401700 A GB 8401700A GB 2135060 B GB2135060 B GB 2135060B
Authority
GB
United Kingdom
Prior art keywords
sensing rotation
electromagnetically
shaft
shaft electromagnetically
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
Application number
GB08401700A
Other versions
GB2135060A (en
GB8401700D0 (en
Inventor
John Allison Hammond
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.)
NL Industries Inc
Original Assignee
NL Industries 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 NL Industries Inc filed Critical NL Industries Inc
Publication of GB8401700D0 publication Critical patent/GB8401700D0/en
Publication of GB2135060A publication Critical patent/GB2135060A/en
Application granted granted Critical
Publication of GB2135060B publication Critical patent/GB2135060B/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/10—Locating fluid leaks, intrusions or movements
    • E21B47/113—Locating fluid leaks, intrusions or movements using electrical indications; using light radiations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P13/00—Indicating or recording presence, absence, or direction, of movement
    • G01P13/02—Indicating direction only, e.g. by weather vane
    • G01P13/04—Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement
    • G01P13/045—Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement with speed indication
GB08401700A 1983-02-07 1984-01-23 Sensing rotation of a shaft electromagnetically Expired GB2135060B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US46464083A 1983-02-07 1983-02-07

Publications (3)

Publication Number Publication Date
GB8401700D0 GB8401700D0 (en) 1984-02-22
GB2135060A GB2135060A (en) 1984-08-22
GB2135060B true GB2135060B (en) 1986-06-11

Family

ID=23844710

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08401700A Expired GB2135060B (en) 1983-02-07 1984-01-23 Sensing rotation of a shaft electromagnetically

Country Status (3)

Country Link
CA (1) CA1238389A (en)
FR (1) FR2548373B1 (en)
GB (1) GB2135060B (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0020363D0 (en) * 2000-08-18 2000-10-04 Russell Michael Detector asssemblies and methods
US9823090B2 (en) 2014-10-31 2017-11-21 Allegro Microsystems, Llc Magnetic field sensor for sensing a movement of a target object
GB2466457B (en) * 2008-12-19 2011-11-16 Schlumberger Holdings Rotating flow meter
US8689903B2 (en) * 2010-04-14 2014-04-08 Baker Hughes Incorporated Coring apparatus and methods
GB2482021B (en) 2010-07-16 2017-09-20 Sondex Wireline Ltd Fluid flow sensor
US9817078B2 (en) 2012-05-10 2017-11-14 Allegro Microsystems Llc Methods and apparatus for magnetic sensor having integrated coil
US10495699B2 (en) * 2013-07-19 2019-12-03 Allegro Microsystems, Llc Methods and apparatus for magnetic sensor having an integrated coil or magnet to detect a non-ferromagnetic target
US10145908B2 (en) 2013-07-19 2018-12-04 Allegro Microsystems, Llc Method and apparatus for magnetic sensor producing a changing magnetic field
US9823092B2 (en) 2014-10-31 2017-11-21 Allegro Microsystems, Llc Magnetic field sensor providing a movement detector
US9720054B2 (en) 2014-10-31 2017-08-01 Allegro Microsystems, Llc Magnetic field sensor and electronic circuit that pass amplifier current through a magnetoresistance element
US10712403B2 (en) 2014-10-31 2020-07-14 Allegro Microsystems, Llc Magnetic field sensor and electronic circuit that pass amplifier current through a magnetoresistance element
US11428755B2 (en) 2017-05-26 2022-08-30 Allegro Microsystems, Llc Coil actuated sensor with sensitivity detection
US10324141B2 (en) 2017-05-26 2019-06-18 Allegro Microsystems, Llc Packages for coil actuated position sensors
US10641842B2 (en) 2017-05-26 2020-05-05 Allegro Microsystems, Llc Targets for coil actuated position sensors
US10837943B2 (en) 2017-05-26 2020-11-17 Allegro Microsystems, Llc Magnetic field sensor with error calculation
US10310028B2 (en) 2017-05-26 2019-06-04 Allegro Microsystems, Llc Coil actuated pressure sensor
US10996289B2 (en) 2017-05-26 2021-05-04 Allegro Microsystems, Llc Coil actuated position sensor with reflected magnetic field
US10823586B2 (en) 2018-12-26 2020-11-03 Allegro Microsystems, Llc Magnetic field sensor having unequally spaced magnetic field sensing elements
US11061084B2 (en) 2019-03-07 2021-07-13 Allegro Microsystems, Llc Coil actuated pressure sensor and deflectable substrate
US10955306B2 (en) 2019-04-22 2021-03-23 Allegro Microsystems, Llc Coil actuated pressure sensor and deformable substrate
US11280637B2 (en) 2019-11-14 2022-03-22 Allegro Microsystems, Llc High performance magnetic angle sensor
US11237020B2 (en) 2019-11-14 2022-02-01 Allegro Microsystems, Llc Magnetic field sensor having two rows of magnetic field sensing elements for measuring an angle of rotation of a magnet
US11262422B2 (en) 2020-05-08 2022-03-01 Allegro Microsystems, Llc Stray-field-immune coil-activated position sensor
US11493361B2 (en) 2021-02-26 2022-11-08 Allegro Microsystems, Llc Stray field immune coil-activated sensor
US11578997B1 (en) 2021-08-24 2023-02-14 Allegro Microsystems, Llc Angle sensor using eddy currents

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1052383A (en) * 1900-01-01
GB578860A (en) * 1944-04-13 1946-07-15 Westinghouse Electric Int Co Improvements in or relating to torque indicating or measuring devices
GB588677A (en) * 1945-02-12 1947-05-30 Siemens Brothers & Co Ltd Electrical arrangements for measuring small movements
GB1007271A (en) * 1960-10-14 1965-10-13 Albert Jefferies Baggott Improvements in or relating to a method of and apparatus for measuring and/or recording the displacement and/or rate of displacement of a movable member
FR2034272A1 (en) * 1969-03-06 1970-12-11 Schlumberger Prospection
US4095177A (en) * 1973-05-29 1978-06-13 Square D Company Transducer
DE2521163C2 (en) * 1975-05-13 1977-06-16 Frieseke & Hoepfner Gmbh DEVICE FOR DETERMINING A SIZE CORRESPONDING TO THE SPEED OR THE ROTATION ANGLE OF AN AXIS
CH608150A5 (en) * 1975-07-02 1978-12-15 Hartig Gunter

Also Published As

Publication number Publication date
GB2135060A (en) 1984-08-22
GB8401700D0 (en) 1984-02-22
FR2548373A1 (en) 1985-01-04
CA1238389A (en) 1988-06-21
FR2548373B1 (en) 1989-08-04

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Legal Events

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