GB2054157B - Electro-magnetic detector - Google Patents

Electro-magnetic detector

Info

Publication number
GB2054157B
GB2054157B GB8016251A GB8016251A GB2054157B GB 2054157 B GB2054157 B GB 2054157B GB 8016251 A GB8016251 A GB 8016251A GB 8016251 A GB8016251 A GB 8016251A GB 2054157 B GB2054157 B GB 2054157B
Authority
GB
United Kingdom
Prior art keywords
electro
magnetic detector
detector
magnetic
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
GB8016251A
Other languages
English (en)
Other versions
GB2054157A (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.)
Tokico Ltd
Original Assignee
Tokico 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 Tokico Ltd filed Critical Tokico Ltd
Publication of GB2054157A publication Critical patent/GB2054157A/en
Application granted granted Critical
Publication of GB2054157B publication Critical patent/GB2054157B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Electronic Switches (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
GB8016251A 1979-05-18 1980-05-16 Electro-magnetic detector Expired GB2054157B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54061634A JPS6041815B2 (ja) 1979-05-18 1979-05-18 近接スイツチ

Publications (2)

Publication Number Publication Date
GB2054157A GB2054157A (en) 1981-02-11
GB2054157B true GB2054157B (en) 1983-09-21

Family

ID=13176816

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8016251A Expired GB2054157B (en) 1979-05-18 1980-05-16 Electro-magnetic detector

Country Status (3)

Country Link
JP (1) JPS6041815B2 (US06582424-20030624-M00016.png)
DE (1) DE3017577C2 (US06582424-20030624-M00016.png)
GB (1) GB2054157B (US06582424-20030624-M00016.png)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4408159A (en) * 1981-04-02 1983-10-04 Abex Corporation Proximity sensing head
JPH0677423B2 (ja) * 1984-05-17 1994-09-28 オムロン株式会社 近接センサ
IT1199159B (it) * 1984-07-13 1988-12-30 Centro Speriment Metallurg Sonda per il controllo dei difetti superficiali di corpi metallici ad alta temperatura
JPH02228519A (ja) * 1989-03-02 1990-09-11 Murata Mfg Co Ltd 振動子の支持構造
DE4038017A1 (de) * 1990-11-29 1992-06-04 Ego Elektro Blanc & Fischer Elektrokochplatte

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE822169C (de) * 1950-03-22 1951-11-22 Eduard Vogel Dipl Ing Wasser- und luftdichtes Gehaeuse fuer Uhren und andere Instrumente
DE1111706B (de) * 1958-07-07 1961-07-27 Elektro App Werke J W Stalin V Elektrisches Relais oder elektrischer Schalter in gekapselter Ausfuehrung
GB1040693A (en) * 1961-09-15 1966-09-01 English Electric Co Ltd Improvements in and relating to electro-magnetic proximity devices and apparatus incorporating such devices
US3349323A (en) * 1964-08-19 1967-10-24 Robert D Mullen Apparatus and methods employing magnetic reed switches and static and varying bias fields for detecting magnetic phenomena
LU61012A1 (US06582424-20030624-M00016.png) * 1969-06-03 1970-07-28
JPS4845653U (US06582424-20030624-M00016.png) * 1971-09-30 1973-06-14
DE2509787C2 (de) * 1975-03-06 1982-06-16 Hans Heinrich Prof. Dr.-Ing. 3300 Braunschweig Emschermann Temperatur-Schutzgefäß für Meßeinrichtungen oder Teile von Meßeinrichtungen

Also Published As

Publication number Publication date
DE3017577A1 (de) 1980-11-20
JPS6041815B2 (ja) 1985-09-19
GB2054157A (en) 1981-02-11
DE3017577C2 (de) 1987-01-02
JPS55154023A (en) 1980-12-01

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Legal Events

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

Effective date: 19930516