GB875567A - Improvements in electromagnetic probes - Google Patents

Improvements in electromagnetic probes

Info

Publication number
GB875567A
GB875567A GB2738658A GB2738658A GB875567A GB 875567 A GB875567 A GB 875567A GB 2738658 A GB2738658 A GB 2738658A GB 2738658 A GB2738658 A GB 2738658A GB 875567 A GB875567 A GB 875567A
Authority
GB
United Kingdom
Prior art keywords
lamps
aug
ferrite
output
electromagnetic probes
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
GB2738658A
Inventor
John Hugh Davey Walton
Cleavnor Horne
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.)
MEC TEST Ltd
Original Assignee
MEC TEST 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 MEC TEST Ltd filed Critical MEC TEST Ltd
Priority to GB2738658A priority Critical patent/GB875567A/en
Publication of GB875567A publication Critical patent/GB875567A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01V3/15—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for use during transport, e.g. by a person, vehicle or boat

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

875,567. Locating foreign bodies. MECTEST Ltd. Aug. 17, 1959 [Aug. 26, 1958], No. 27386/58. Class 81 (2). [Also in Group XXXVI] In a probe for detecting metallic particles e.g. in the eye, coils 12, 14, 16 on a ferrite rod 10 are energized by A.C. from a source 22 the output resulting from detection being passed to a phasesensitive detector 24. The output operates a differential transistor amplifier 26 to cause one or other of two lamps 18, 20 to glow more brightly, a more accurate indication being given on meter 34. Before use, a cap 38 containing metal or ferrite is rotated until the brilliance of the lamps is equal.
GB2738658A 1958-08-26 1958-08-26 Improvements in electromagnetic probes Expired GB875567A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2738658A GB875567A (en) 1958-08-26 1958-08-26 Improvements in electromagnetic probes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2738658A GB875567A (en) 1958-08-26 1958-08-26 Improvements in electromagnetic probes

Publications (1)

Publication Number Publication Date
GB875567A true GB875567A (en) 1961-08-23

Family

ID=10258759

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2738658A Expired GB875567A (en) 1958-08-26 1958-08-26 Improvements in electromagnetic probes

Country Status (1)

Country Link
GB (1) GB875567A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3362002A (en) * 1965-12-01 1968-01-02 Tesla Np Inductive measuring device having a conductive shield
US3436649A (en) * 1964-06-24 1969-04-01 Omron Tateisi Electronics Co Electrical sensing apparatus for sensing the presence of a conductive or magnetic object with compensation for supply voltage fluctuations
US3634799A (en) * 1969-04-18 1972-01-11 Henrich Strauch Inductive transducers
GB2140568A (en) * 1983-04-27 1984-11-28 Pall Corp Electromagnetic detector for metallic materials
GB2165650A (en) * 1984-04-09 1986-04-16 Dennis Amerena Parker Method and apparatus for the quantative and qualitative measurement of small metal particles
GB2186978A (en) * 1985-10-10 1987-08-26 Dennis Amerena Parker A high resolution magnetometer for sensing metallic samples
GB2204133A (en) * 1987-04-21 1988-11-02 Mccormick Lab Inc A device for accurately detecting the position of a ferromagnetic material inside biological tissue
CN112504921A (en) * 2020-12-24 2021-03-16 爱德森（厦门）电子有限公司 Phase amplitude analysis method for electromagnetically detecting oil abrasive particles and detection device thereof

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3436649A (en) * 1964-06-24 1969-04-01 Omron Tateisi Electronics Co Electrical sensing apparatus for sensing the presence of a conductive or magnetic object with compensation for supply voltage fluctuations
US3362002A (en) * 1965-12-01 1968-01-02 Tesla Np Inductive measuring device having a conductive shield
US3634799A (en) * 1969-04-18 1972-01-11 Henrich Strauch Inductive transducers
GB2140568A (en) * 1983-04-27 1984-11-28 Pall Corp Electromagnetic detector for metallic materials
US4613815A (en) * 1983-04-27 1986-09-23 Pall Corporation Electromagnetic detector for metallic materials having an improved phase detection circuit
GB2165650A (en) * 1984-04-09 1986-04-16 Dennis Amerena Parker Method and apparatus for the quantative and qualitative measurement of small metal particles
GB2186978A (en) * 1985-10-10 1987-08-26 Dennis Amerena Parker A high resolution magnetometer for sensing metallic samples
GB2186978B (en) * 1985-10-10 1990-06-13 Dennis Amerena Parker High resolution magnetometer
GB2204133A (en) * 1987-04-21 1988-11-02 Mccormick Lab Inc A device for accurately detecting the position of a ferromagnetic material inside biological tissue
CN112504921A (en) * 2020-12-24 2021-03-16 爱德森（厦门）电子有限公司 Phase amplitude analysis method for electromagnetically detecting oil abrasive particles and detection device thereof
CN112504921B (en) * 2020-12-24 2022-06-24 爱德森（厦门）电子有限公司 Phase amplitude analysis method for electromagnetically detecting oil abrasive particles and detection device thereof

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