GB8405532D0 - Measurement using electrical transducers - Google Patents

Measurement using electrical transducers

Info

Publication number
GB8405532D0
GB8405532D0 GB848405532A GB8405532A GB8405532D0 GB 8405532 D0 GB8405532 D0 GB 8405532D0 GB 848405532 A GB848405532 A GB 848405532A GB 8405532 A GB8405532 A GB 8405532A GB 8405532 D0 GB8405532 D0 GB 8405532D0
Authority
GB
United Kingdom
Prior art keywords
measurement
electrical transducers
transducers
electrical
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.)
Pending
Application number
GB848405532A
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.)
Atherton E J
Original Assignee
Atherton E J
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 Atherton E J filed Critical Atherton E J
Priority to GB848405532A priority Critical patent/GB8405532D0/en
Publication of GB8405532D0 publication Critical patent/GB8405532D0/en
Priority to PCT/GB1985/000085 priority patent/WO1985004005A1/en
Priority to EP85901042A priority patent/EP0174328A1/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G01B7/28—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring contours or curvatures
    • G01B7/287—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring contours or curvatures using a plurality of fixed, simultaneously operating transducers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • E21B47/13—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency
    • 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
    • G01D1/00—Measuring arrangements giving results other than momentary value of variable, of general application
    • G01D1/16—Measuring arrangements giving results other than momentary value of variable, of general application giving a value which is a function of two or more values, e.g. product or ratio
    • 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
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G01D3/06—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for operation by a null method
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
    • G01V3/26—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device
    • G01V3/28—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device using induction coils

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Geophysics (AREA)
  • Mining & Mineral Resources (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
GB848405532A 1984-03-02 1984-03-02 Measurement using electrical transducers Pending GB8405532D0 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB848405532A GB8405532D0 (en) 1984-03-02 1984-03-02 Measurement using electrical transducers
PCT/GB1985/000085 WO1985004005A1 (en) 1984-03-02 1985-03-01 Measurement using electrical transducers
EP85901042A EP0174328A1 (en) 1984-03-02 1985-03-01 Measurement using electrical transducers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB848405532A GB8405532D0 (en) 1984-03-02 1984-03-02 Measurement using electrical transducers

Publications (1)

Publication Number Publication Date
GB8405532D0 true GB8405532D0 (en) 1984-04-04

Family

ID=10557487

Family Applications (1)

Application Number Title Priority Date Filing Date
GB848405532A Pending GB8405532D0 (en) 1984-03-02 1984-03-02 Measurement using electrical transducers

Country Status (3)

Country Link
EP (1) EP0174328A1 (en)
GB (1) GB8405532D0 (en)
WO (1) WO1985004005A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4849699A (en) * 1987-06-08 1989-07-18 Mpi, Inc. Extended range, pulsed induction logging tool and method of use
GB9116245D0 (en) * 1991-07-27 1991-09-11 Renishaw Metrology Ltd Sensing circuit for position-sensing probe
US5299359A (en) * 1992-05-01 1994-04-05 Computalog Research, Inc. Method and system for measurement of internal tube dimensions within a wellbore
JPH0886241A (en) * 1994-09-16 1996-04-02 Hitachi Ltd Drive device for sensor and actuator
DE19549710C2 (en) * 1994-09-16 2003-07-03 Hitachi Ltd Control assembly for sensors and actuators of IC engined vehicle
DE19834433A1 (en) * 1998-07-30 2000-02-03 Delco Electronics Corp Device for offset compensation in analog signal measurements
US9720127B2 (en) * 2014-05-09 2017-08-01 Probe Holdings, Inc. Caliper tool with in-situ temperature compensation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2298085A1 (en) * 1975-01-17 1976-08-13 Erap DEVICE FOR TAKING AN IMPRESSION AND DISPLAYING THIS IMPRESSION
US4065715A (en) * 1975-12-18 1977-12-27 General Motors Corporation Pulse duration modulated signal transducer
US4190797A (en) * 1978-03-31 1980-02-26 Gould Inc. Capacitive gauging system utilizing a low internal capacitance, high impedance amplifier means
US4181958A (en) * 1978-04-21 1980-01-01 The Valeron Corporation Multiple probe gage system
DE2942134A1 (en) * 1979-10-18 1981-04-30 Robert Bosch Gmbh, 7000 Stuttgart EVALUATION FOR AN INDUCTIVE ENCODER
US4392106A (en) * 1980-12-24 1983-07-05 Yakovlev Nikolai I Non-contact device for monitoring electrical pulse signals
JPS58100702A (en) * 1981-12-11 1983-06-15 Omron Tateisi Electronics Co Thickness detector for paper sheet
FR2518738B1 (en) * 1981-12-23 1985-10-18 Flopetrol Etu Fabrications DEVICE FOR MEASURING INTERNAL DIMENSIONS OF A TUBE, PARTICULARLY IN A WELL AND METHOD OF MEASURING DISPLACEMENT APPLICABLE TO SUCH A DEVICE

Also Published As

Publication number Publication date
WO1985004005A1 (en) 1985-09-12
EP0174328A1 (en) 1986-03-19

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