GB2292223B - Position measurement - Google Patents

Position measurement

Info

Publication number
GB2292223B
GB2292223B GB9519609A GB9519609A GB2292223B GB 2292223 B GB2292223 B GB 2292223B GB 9519609 A GB9519609 A GB 9519609A GB 9519609 A GB9519609 A GB 9519609A GB 2292223 B GB2292223 B GB 2292223B
Authority
GB
United Kingdom
Prior art keywords
position measurement
measurement
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
GB9519609A
Other versions
GB9519609D0 (en
GB2292223A (en
Inventor
Frank Philip Lund
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.)
Millstrong Ltd
Original Assignee
Millstrong 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 Millstrong Ltd filed Critical Millstrong Ltd
Priority to GB9519609A priority Critical patent/GB2292223B/en
Publication of GB9519609D0 publication Critical patent/GB9519609D0/en
Publication of GB2292223A publication Critical patent/GB2292223A/en
Application granted granted Critical
Publication of GB2292223B publication Critical patent/GB2292223B/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
    • G01D5/14—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
    • G01D5/2073—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 a single coil with respect to two or more coils
    • 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
    • G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
    • G01N27/9013—Arrangements for scanning
    • G01N27/902—Arrangements for scanning by moving the sensors
GB9519609A 1991-12-20 1991-12-20 Position measurement Expired - Fee Related GB2292223B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9519609A GB2292223B (en) 1991-12-20 1991-12-20 Position measurement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9519609A GB2292223B (en) 1991-12-20 1991-12-20 Position measurement
GB9127109A GB2262607B (en) 1991-12-20 1991-12-20 Probe

Publications (3)

Publication Number Publication Date
GB9519609D0 GB9519609D0 (en) 1995-11-29
GB2292223A GB2292223A (en) 1996-02-14
GB2292223B true GB2292223B (en) 1996-06-26

Family

ID=10706626

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9519609A Expired - Fee Related GB2292223B (en) 1991-12-20 1991-12-20 Position measurement
GB9127109A Expired - Fee Related GB2262607B (en) 1991-06-11 1991-12-20 Probe

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB9127109A Expired - Fee Related GB2262607B (en) 1991-06-11 1991-12-20 Probe

Country Status (1)

Country Link
GB (2) GB2292223B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7015690B2 (en) * 2004-05-27 2006-03-21 General Electric Company Omnidirectional eddy current probe and inspection system
DE102017107708A1 (en) 2017-04-10 2018-10-11 Prüftechnik Dieter Busch AG Differential probe, testing device and manufacturing process

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2098332A (en) * 1979-11-14 1982-11-17 Festo Maschf Stoll G Position sensor
EP0323094A2 (en) * 1987-12-28 1989-07-05 Ford Motor Company Limited High resolution digital suspension position sensor for automotive vehicle

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2007366B (en) * 1977-09-22 1982-03-24 Nippon Kokan Kk Eddycurrent flaw detection apparatus
US4292589A (en) * 1979-05-09 1981-09-29 Schlumberger Technology Corporation Eddy current method and apparatus for inspecting ferromagnetic tubular members
EP0027308B1 (en) * 1979-08-16 1984-10-24 Inoue-Japax Research Incorporated Manufacture and use of magnetic scale systems
US4757257A (en) * 1984-05-28 1988-07-12 Canon Kabushiki Kaisha Magnetoresistive displacement sensor and signal processing circuit
SE467711B (en) * 1987-02-09 1992-08-31 Bengt Hjalmar Toernblom DEVICE FOR Saturation / Testing with Invertebrate Flow Technology Medium Multiple Dynamically Compensated Sensors
US5068608A (en) * 1989-10-30 1991-11-26 Westinghouse Electric Corp. Multiple coil eddy current probe system and method for determining the length of a discontinuity
GB2256713B (en) * 1991-06-11 1993-08-18 Millstrong Ltd Eddy current flaw size detecting probe

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2098332A (en) * 1979-11-14 1982-11-17 Festo Maschf Stoll G Position sensor
EP0323094A2 (en) * 1987-12-28 1989-07-05 Ford Motor Company Limited High resolution digital suspension position sensor for automotive vehicle

Also Published As

Publication number Publication date
GB2262607B (en) 1996-06-26
GB9519609D0 (en) 1995-11-29
GB2292223A (en) 1996-02-14
GB2262607A (en) 1993-06-23
GB9127109D0 (en) 1992-02-19

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20031220