GB845712A - Improvements in or relating to the detection of ferrous particles in non-ferrous electric conductors - Google Patents

Improvements in or relating to the detection of ferrous particles in non-ferrous electric conductors

Info

Publication number
GB845712A
GB845712A GB224557A GB224557A GB845712A GB 845712 A GB845712 A GB 845712A GB 224557 A GB224557 A GB 224557A GB 224557 A GB224557 A GB 224557A GB 845712 A GB845712 A GB 845712A
Authority
GB
United Kingdom
Prior art keywords
ferrous
recording
relating
detection
thyratron
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
GB224557A
Inventor
Peter Graneau
Brian John Thompson
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.)
Balfour Beatty PLC
Original Assignee
BICC PLC
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 BICC PLC filed Critical BICC PLC
Priority to GB224557A priority Critical patent/GB845712A/en
Publication of GB845712A publication Critical patent/GB845712A/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
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
    • G01V3/104—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils
    • G01V3/105—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils forming directly coupled primary and secondary coils or loops
    • G01V3/107—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils forming directly coupled primary and secondary coils or loops using compensating coil or loop arrangements

Abstract

845,712. Recording-apparatus. BRITISH INSULATED CALLENDER'S CABLES Ltd. April 22, 1958 [Jan. 22, 1957], No. 2245/57. Class 106 (4). [Also in Group XXXVI] Apparatus for recording the distribution of ferrous particles along the length of a non- ferrous electric conductor comprises a thyratron, to the grid of which is supplied the output of ferrous particle detection apparatus (see Group XXXVI), said output consisting of unidirectional pulses which render the thyratron conductive, thus energizing a relay in its anode circuit to operate an electromagnetic plunger device 27, member 28 of which advances axially to punch a hole in the periphery of a circular record card 30 which is continuously rotated by a synchronous motor 31.
GB224557A 1957-01-22 1957-01-22 Improvements in or relating to the detection of ferrous particles in non-ferrous electric conductors Expired GB845712A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB224557A GB845712A (en) 1957-01-22 1957-01-22 Improvements in or relating to the detection of ferrous particles in non-ferrous electric conductors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB224557A GB845712A (en) 1957-01-22 1957-01-22 Improvements in or relating to the detection of ferrous particles in non-ferrous electric conductors

Publications (1)

Publication Number Publication Date
GB845712A true GB845712A (en) 1960-08-24

Family

ID=9736154

Family Applications (1)

Application Number Title Priority Date Filing Date
GB224557A Expired GB845712A (en) 1957-01-22 1957-01-22 Improvements in or relating to the detection of ferrous particles in non-ferrous electric conductors

Country Status (1)

Country Link
GB (1) GB845712A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3748576A (en) * 1970-02-27 1973-07-24 Smiths Industries Ltd Detection of particle-inclusions in fluid flow utilizing a divided fluid path with a sensing coil about each path
GB2140568A (en) * 1983-04-27 1984-11-28 Pall Corp Electromagnetic detector for metallic materials
US4593244A (en) * 1982-08-06 1986-06-03 Australian Wire Industries Pty. Ltd. Determination of the thickness of a coating on a highly elongated article

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3748576A (en) * 1970-02-27 1973-07-24 Smiths Industries Ltd Detection of particle-inclusions in fluid flow utilizing a divided fluid path with a sensing coil about each path
US4593244A (en) * 1982-08-06 1986-06-03 Australian Wire Industries Pty. Ltd. Determination of the thickness of a coating on a highly elongated article
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

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