GB2223590A - Inductive displacement sensors - Google Patents

Inductive displacement sensors

Info

Publication number
GB2223590A
GB2223590A GB8918754A GB8918754A GB2223590A GB 2223590 A GB2223590 A GB 2223590A GB 8918754 A GB8918754 A GB 8918754A GB 8918754 A GB8918754 A GB 8918754A GB 2223590 A GB2223590 A GB 2223590A
Authority
GB
United Kingdom
Prior art keywords
displacement sensors
inductive displacement
inductive
sensors
displacement
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
GB8918754A
Other versions
GB8918754D0 (en
GB2223590B (en
Inventor
Donald Lionel Hore
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.)
RADIODETECTION Ltd
Radiodetection Ltd
Original Assignee
RADIODETECTION Ltd
Radiodetection 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
Priority claimed from GB878704606A external-priority patent/GB8704606D0/en
Priority claimed from GB878718333A external-priority patent/GB8718333D0/en
Application filed by RADIODETECTION Ltd, Radiodetection Ltd filed Critical RADIODETECTION Ltd
Publication of GB8918754D0 publication Critical patent/GB8918754D0/en
Publication of GB2223590A publication Critical patent/GB2223590A/en
Application granted granted Critical
Publication of GB2223590B publication Critical patent/GB2223590B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01D5/2006—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 self-induction of one or more coils
    • G01D5/2013—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 self-induction of one or more coils by a movable ferromagnetic element, e.g. a core
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00—Measuring inclination, e.g. by clinometers, by levels
    • G01C9/02—Details
    • G01C9/06—Electric or photoelectric indication or reading means
GB8918754A 1987-02-27 1989-08-17 Inductive displacement sensors Expired - Lifetime GB2223590B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB878704606A GB8704606D0 (en) 1987-02-27 1987-02-27 Inclination sensor
GB878718333A GB8718333D0 (en) 1987-08-03 1987-08-03 Inductive displacement sensors
PCT/GB1988/000141 WO1988006716A1 (en) 1987-02-27 1988-02-26 Inductive displacement sensors

Publications (3)

Publication Number Publication Date
GB8918754D0 GB8918754D0 (en) 1989-10-04
GB2223590A true GB2223590A (en) 1990-04-11
GB2223590B GB2223590B (en) 1990-11-14

Family

ID=26291948

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8918754A Expired - Lifetime GB2223590B (en) 1987-02-27 1989-08-17 Inductive displacement sensors

Country Status (6)

Country Link
US (1) US4991301A (en)
EP (1) EP0349547B1 (en)
JP (1) JPH02502670A (en)
DE (1) DE3880829T2 (en)
GB (1) GB2223590B (en)
WO (1) WO1988006716A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5886519A (en) * 1997-01-29 1999-03-23 Mitutoyo Corporation Multi-scale induced current absolute position transducer
US5973494A (en) * 1996-05-13 1999-10-26 Mitutoyo Corporation Electronic caliper using a self-contained, low power inductive position transducer
US6002250A (en) * 1996-05-13 1999-12-14 Mitutoyo Corporation Electronic linear scale using a self-contained, low-power inductive position transducer
US6011389A (en) * 1995-05-16 2000-01-04 Mitutoyo Corporation Induced current position transducer having a low power electronic circuit
US7345486B2 (en) 1991-03-01 2008-03-18 Merlin Technology, Inc. Position and orientation locator/monitor

Families Citing this family (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5214378A (en) * 1988-10-11 1993-05-25 Radiodetection Limited Homopolar inductive displacement sensor
US5133417A (en) * 1990-06-18 1992-07-28 The Charles Machine Works, Inc. Angle sensor using thermal conductivity for a steerable boring tool
GB9110698D0 (en) * 1991-05-17 1991-07-10 Radiodetection Ltd Inductive displacement sensors
FR2684758B1 (en) * 1991-12-09 1997-03-28 Alcatel Satmam ANGULAR POSITION SENSOR WITH CLOSED CONTINUOUS RESISTIVE TRACK, AND CORRESPONDING MEASUREMENT METHOD.
US5385410A (en) * 1992-08-31 1995-01-31 General Motors Corporation Variable reluctance integral bearing sensor
DE4234277A1 (en) * 1992-10-10 1994-04-14 Steingroever Magnet Physik Magnetic accelerometer and displacement sensor - uses concentric, cylindrical magnets with central Hall sensor giving continued read=out after first displacement
GB9225971D0 (en) * 1992-12-12 1993-02-10 Penny & Giles Blackwood Ltd Rotary transducer
US5341678A (en) * 1993-05-12 1994-08-30 General Electric Company Method for determining thickness of ferromagnetic material deposition on nuclear fuel rods
US5632093A (en) * 1993-07-19 1997-05-27 Elias; Sharon A. Inductive sensor and method for detecting displacement of a body
US5456013A (en) * 1993-07-19 1995-10-10 Elias; Sharon A. Inductive tilt sensor and method for measuring tooth mobility
US5796248A (en) * 1994-09-19 1998-08-18 Ford Motor Company Method and apparatus for commutating a three-phase variable reluctance motor
US5642044A (en) * 1994-09-19 1997-06-24 Ford Motor Company Method and apparatus for exciting a three-phase variable reluctance position sensor
US5489845A (en) * 1994-09-19 1996-02-06 Ford Motor Company Encoder system and method for determining absolute rotor position by taking a mid value of the multiple coil output sinusoidal signals
US5717592A (en) * 1994-09-19 1998-02-10 Ford Motor Company Method and system for engine throttle control
DE59710762D1 (en) 1996-07-30 2003-10-23 Micro Epsilon Messtechnik CONTACTLESS WORKING SENSOR
US5955880A (en) * 1996-12-05 1999-09-21 Beam; Palmer H. Sealless pump rotor position and bearing monitor
US6039345A (en) * 1998-01-16 2000-03-21 Automotive Systems Laboratory, Inc. System and method for sensing vehicle door edge movement
EP0952938A4 (en) * 1997-01-17 2002-03-13 Automotive Systems Lab Vehicle door edge movement sensor system
IL123587A (en) 1998-03-06 2001-04-30 Kapro Ind Ltd Spirit level with multiple bubble vials
US5925951A (en) * 1998-06-19 1999-07-20 Sundstrand Fluid Handling Corporation Electromagnetic shield for an electric motor
US6470751B1 (en) * 1999-02-20 2002-10-29 Lg Electronics Inc. Vibration detecting apparatus and method thereof
DE19911958C2 (en) * 1999-03-17 2002-02-07 Precitec Kg Process for inductive distance measurement and working head for carrying out the process
US6170162B1 (en) * 1999-05-27 2001-01-09 Sarcos, L.C. Rotary displacement system using differential measuring
SI20390A (en) * 1999-08-13 2001-04-30 Boris Geršak Electronic scale for measuring inclination angles - application of electronic resistors and conductors
EP1206759B1 (en) 1999-08-26 2007-12-19 Automotive Systems Laboratory Inc. Magnetic sensor
EP1208549B1 (en) 1999-08-26 2008-03-19 Automotive Systems Laboratory Inc. Magnetic sensor
US6407660B1 (en) 1999-08-26 2002-06-18 Automotive Systems Laboratory, Inc. Magnetic sensor
AU7840500A (en) 1999-09-30 2001-04-30 Uab Research Foundation Implantable mechanical force sensor
JP2003515140A (en) 1999-11-04 2003-04-22 オートモーティブ システムズ ラボラトリー インコーポレーテッド Collision detection system
FI112278B (en) * 2000-01-20 2003-11-14 High Speed Tech Ltd Oy A method for determining the rotor position of an electrical machine and a position sensor
US6571483B1 (en) * 2000-04-14 2003-06-03 Gateway, Inc. Orientation sensor
DE10042602A1 (en) * 2000-08-30 2002-03-28 Bosch Gmbh Robert Method for expanding the absolute angle measuring range in magnetic field sensors
DE10130572B4 (en) * 2001-06-27 2010-01-07 Ifm Electronic Gmbh Inductive displacement sensor for determining the position of an influencing element and method for determining the position of an influencing element with an inductive displacement sensor
US6628017B1 (en) * 2002-08-06 2003-09-30 Jacob Chass Ferrofluidic, electromagnetic power supply
US7196527B2 (en) * 2004-02-17 2007-03-27 Stridsberg Innovation Ab Redundant compact encoders
US7561968B2 (en) * 2004-10-13 2009-07-14 The Boeing Company Scale factor calibration and compensation for angular position resolver
DE202004016751U1 (en) * 2004-10-28 2005-01-27 Pro-Micron Gmbh & Co. Kg Modular Systems Transponder system for non-contact inductive power transmission transfers power from a static side with a reading-coil on a stator onto a rotating side with a transponder coil on a spindle
EP1915585A2 (en) 2005-07-29 2008-04-30 Automotive Systems Laboratory Inc. Magnetic crash sensor
DE102008004454B4 (en) * 2008-01-15 2020-02-13 Asm Automation Sensorik Messtechnik Gmbh Angle sensor circuit
JP5184420B2 (en) 2009-03-31 2013-04-17 愛三工業株式会社 Resolver
US8264315B2 (en) * 2010-08-03 2012-09-11 Honeywell International Inc. Linear variable differential transformers
DE112012000422T5 (en) 2011-01-07 2013-10-17 Woodward Mpc, Inc. Method and apparatus for a half-bridge differential transformer position sensing system
US20150008906A1 (en) * 2013-07-03 2015-01-08 Dennis K. Briefer Position sensing device
US10323960B2 (en) 2014-12-31 2019-06-18 Ingersoll-Rand Company Method of making sensing mechanism and machine system using same
FR3031587B1 (en) * 2015-01-13 2018-11-16 Hutchinson INDUCTIVE DISPLACEMENT SENSORS
CN104753273B (en) * 2015-04-23 2017-06-13 清华大学 A kind of magnetic suspension momentum sphere
US10393618B2 (en) * 2016-06-22 2019-08-27 Nxp Usa, Inc. Controlled pulse generation methods and apparatuses for evaluating stiction in microelectromechanical systems devices

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3045227A (en) * 1958-01-27 1962-07-17 Minas Giorgio Electromagnetic devices for converting a movement of an electric value
GB2088562A (en) * 1980-11-18 1982-06-09 Lucas Industries Ltd Linear transducers
US4587741A (en) * 1983-09-27 1986-05-13 Develco, Inc. Ball inclinometer

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123785A (en) * 1964-03-03 Moller
US3001127A (en) * 1961-09-19 Electromagnetic pick-off devices
US2488734A (en) * 1946-03-07 1949-11-22 Research Corp Dynamo transformer
US2975384A (en) * 1954-09-24 1961-03-14 Sprague Electric Co Toroidal inductor combinations
US3059343A (en) * 1960-03-15 1962-10-23 David W Kermode Non-gyroscopic precision inclinometer
US3061805A (en) * 1961-03-07 1962-10-30 Gen Precision Inc Signal generator
US3184861A (en) * 1962-04-02 1965-05-25 Thompson Ramo Wooldridge Inc Position deviation sensing device utilizing skin effect
US3839904A (en) * 1972-09-18 1974-10-08 Us Army Magnetic fluid level detector and vibration transducer
US3911592A (en) * 1974-02-25 1975-10-14 Hydril Co Tilt detector and system
SU690288A1 (en) * 1977-09-30 1979-10-05 Московский Институт Электронного Машиностроения Device for determining object inclination angle
SU964695A1 (en) * 1981-03-23 1982-10-07 Тамбовский институт химического машиностроения Device for remote transmission of angular displacements
US4551708A (en) * 1982-06-04 1985-11-05 Motornetics Corporation Reactance-commutated high resolution servo motor system
JPS5967404A (en) * 1982-09-24 1984-04-17 Seiko Instr & Electronics Ltd Detector of radial displacement of rotary body
US4507965A (en) * 1982-09-24 1985-04-02 Columbia Research Laboratories Detector for determining both forces on and positions of a host device
SU1076748A2 (en) * 1982-12-23 1984-02-29 Подмосковный Научно-Исследовательский И Проектно-Конструкторский Угольный Институт Inductive displacement pickup
JPS59174702A (en) * 1983-03-24 1984-10-03 Yaskawa Electric Mfg Co Ltd Rotary-angle detecting device
JPH0665967B2 (en) * 1985-08-27 1994-08-24 株式会社エスジー Absolute rotational position detector
FR2601129B1 (en) * 1986-07-02 1994-06-03 Commissariat Energie Atomique ANGULAR POSITION SENSOR AND ANGULAR POSITION DETERMINATION ASSEMBLY PROVIDED WITH SEVERAL SAME
SU1439405A1 (en) * 1987-04-01 1988-11-23 Институт механики сплошных сред Уральского научного центра АН СССР Inclination meter
JPH02177411A (en) * 1988-12-28 1990-07-10 Toshiba Corp Terminal structure of electronic component

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3045227A (en) * 1958-01-27 1962-07-17 Minas Giorgio Electromagnetic devices for converting a movement of an electric value
GB2088562A (en) * 1980-11-18 1982-06-09 Lucas Industries Ltd Linear transducers
US4587741A (en) * 1983-09-27 1986-05-13 Develco, Inc. Ball inclinometer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Patent abstracts of Japan, vol9, no. *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7345486B2 (en) 1991-03-01 2008-03-18 Merlin Technology, Inc. Position and orientation locator/monitor
US7521933B2 (en) 1991-03-01 2009-04-21 Merlin Technology, Inc. Position and orientation locator/monitor
US6011389A (en) * 1995-05-16 2000-01-04 Mitutoyo Corporation Induced current position transducer having a low power electronic circuit
US5973494A (en) * 1996-05-13 1999-10-26 Mitutoyo Corporation Electronic caliper using a self-contained, low power inductive position transducer
US6002250A (en) * 1996-05-13 1999-12-14 Mitutoyo Corporation Electronic linear scale using a self-contained, low-power inductive position transducer
US5886519A (en) * 1997-01-29 1999-03-23 Mitutoyo Corporation Multi-scale induced current absolute position transducer

Also Published As

Publication number Publication date
DE3880829T2 (en) 1994-01-05
EP0349547B1 (en) 1993-05-05
JPH02502670A (en) 1990-08-23
WO1988006716A1 (en) 1988-09-07
EP0349547A1 (en) 1990-01-10
DE3880829D1 (en) 1993-06-09
GB8918754D0 (en) 1989-10-04
GB2223590B (en) 1990-11-14
US4991301A (en) 1991-02-12

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Legal Events

Date Code Title Description
746D Case decided by the comptroller (sect. 46(3)/1977)
7732 Case decided by the comptroller ** patent revoked (sect. 73(2)/1977)