GB1386035A - Eddy current sensor - Google Patents

Eddy current sensor

Info

Publication number
GB1386035A
GB1386035A GB1440773A GB1440773A GB1386035A GB 1386035 A GB1386035 A GB 1386035A GB 1440773 A GB1440773 A GB 1440773A GB 1440773 A GB1440773 A GB 1440773A GB 1386035 A GB1386035 A GB 1386035A
Authority
GB
United Kingdom
Prior art keywords
current sensor
eddy current
eddy
sensor
current
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
GB1440773A
Other languages
English (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.)
Simmonds Precision Products Inc
Original Assignee
Simmonds Precision Products 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 Simmonds Precision Products Inc filed Critical Simmonds Precision Products Inc
Publication of GB1386035A publication Critical patent/GB1386035A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/028—Electrodynamic magnetometers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/484—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by contact-making switches
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/49—Devices characterised by the use of electric or magnetic means for measuring angular speed using eddy currents
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/025—Compensating stray fields

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
GB1440773A 1972-04-20 1973-03-26 Eddy current sensor Expired GB1386035A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24586372A 1972-04-20 1972-04-20

Publications (1)

Publication Number Publication Date
GB1386035A true GB1386035A (en) 1975-03-05

Family

ID=22928395

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1440773A Expired GB1386035A (en) 1972-04-20 1973-03-26 Eddy current sensor

Country Status (7)

Country Link
JP (1) JPS4947807A (enExample)
CA (1) CA984463A (enExample)
CH (1) CH558532A (enExample)
DE (1) DE2319927A1 (enExample)
FR (1) FR2181078B1 (enExample)
GB (1) GB1386035A (enExample)
IT (1) IT984760B (enExample)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2029577A (en) * 1978-09-05 1980-03-19 Coburn O Magnetic sensor assembly
GB2265221A (en) * 1992-03-21 1993-09-22 Schlumberger Ind Ltd Inductive sensors
GB2408802A (en) * 2003-12-03 2005-06-08 Weston Aerospace Eddy current sensors
EP2073021A1 (en) 2007-12-21 2009-06-24 Weston Aerospace Limited Method and apparatus for monitoring the rotational speed of a shaft
EP2073019A2 (en) 2007-12-21 2009-06-24 Weston Aerospace Limited Method and apparatus for monitoring gas turbine blades
EP2073020A1 (en) 2007-12-21 2009-06-24 Weston Aerospace Limited Method and apparatus for monitoring the rotational speed of the shaft of a gas turbine
EP2073022A1 (en) 2007-12-21 2009-06-24 Weston Aerospace Limited Method and apparatus for monitoring the rotational speed of a gas turbine shaft
US7840370B2 (en) 2007-12-21 2010-11-23 Weston Aerospace Limited Method and apparatus for monitoring the rotational speed of shaft
DE102010061955A1 (de) 2010-11-25 2012-05-31 Rolls-Royce Deutschland Ltd & Co Kg Induktiver Sensor
US10976221B2 (en) 2018-01-09 2021-04-13 Weston Aerospace Limited Magnetic gas turbine sensor

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2288313A1 (fr) * 1974-10-17 1976-05-14 Jaeger Perfectionnement aux capteurs magnetiques
DE3582783D1 (de) * 1984-11-20 1991-06-13 S G Kk Einrichtung zum erfassen der drehlage.
US7948229B2 (en) * 2008-08-29 2011-05-24 General Electric Company High temperature electronics for passive eddy current sensors
JP2012501445A (ja) * 2008-08-29 2012-01-19 ゼネラル・エレクトリック・カンパニイ 対象物の周期的位置を検知するためのシステムおよび方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE933173C (de) * 1950-10-14 1955-09-22 Siemens Ag Pruefeinrichtung, insbesondere fuer elektrische Triebfahrzeuge, zur Anzeige der Drehbewegung einer Welle

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2029577A (en) * 1978-09-05 1980-03-19 Coburn O Magnetic sensor assembly
GB2029577B (en) * 1978-09-05 1983-03-23 Coburn Wesley Orin Magnetic sensor assembly
GB2265221A (en) * 1992-03-21 1993-09-22 Schlumberger Ind Ltd Inductive sensors
GB2265221B (en) * 1992-03-21 1995-04-26 Schlumberger Ind Ltd Inductive sensors
GB2408802A (en) * 2003-12-03 2005-06-08 Weston Aerospace Eddy current sensors
EP2073019A2 (en) 2007-12-21 2009-06-24 Weston Aerospace Limited Method and apparatus for monitoring gas turbine blades
EP2073021A1 (en) 2007-12-21 2009-06-24 Weston Aerospace Limited Method and apparatus for monitoring the rotational speed of a shaft
EP2073020A1 (en) 2007-12-21 2009-06-24 Weston Aerospace Limited Method and apparatus for monitoring the rotational speed of the shaft of a gas turbine
EP2073022A1 (en) 2007-12-21 2009-06-24 Weston Aerospace Limited Method and apparatus for monitoring the rotational speed of a gas turbine shaft
US7840370B2 (en) 2007-12-21 2010-11-23 Weston Aerospace Limited Method and apparatus for monitoring the rotational speed of shaft
US7856337B2 (en) 2007-12-21 2010-12-21 Weston Aerospace Limited Method and apparatus for monitoring the rotational speed of the shaft of a gas turbine
US8229646B2 (en) 2007-12-21 2012-07-24 Weston Aerospace Limited Method and apparatus for monitoring gas turbine blades
DE102010061955A1 (de) 2010-11-25 2012-05-31 Rolls-Royce Deutschland Ltd & Co Kg Induktiver Sensor
DE102010061955B4 (de) * 2010-11-25 2014-03-13 Rolls-Royce Deutschland Ltd & Co Kg Induktiver Sensor
US10976221B2 (en) 2018-01-09 2021-04-13 Weston Aerospace Limited Magnetic gas turbine sensor

Also Published As

Publication number Publication date
IT984760B (it) 1974-11-20
CH558532A (de) 1975-01-31
FR2181078B1 (enExample) 1977-09-02
CA984463A (en) 1976-02-24
DE2319927A1 (de) 1973-10-31
JPS4947807A (enExample) 1974-05-09
FR2181078A1 (enExample) 1973-11-30

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Legal Events

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