FR2084172A6 - - Google Patents

Info

Publication number
FR2084172A6
FR2084172A6 FR7107438A FR7107438A FR2084172A6 FR 2084172 A6 FR2084172 A6 FR 2084172A6 FR 7107438 A FR7107438 A FR 7107438A FR 7107438 A FR7107438 A FR 7107438A FR 2084172 A6 FR2084172 A6 FR 2084172A6
Authority
FR
France
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
FR7107438A
Other languages
French (fr)
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.)
Schneider Electric USA Inc
Original Assignee
Square D Co
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 Square D Co filed Critical Square D Co
Application granted granted Critical
Publication of FR2084172A6 publication Critical patent/FR2084172A6/fr
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
    • G01V3/101—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 by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/945—Proximity switches
    • H03K17/95—Proximity switches using a magnetic detector
    • H03K17/9505—Constructional details
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/945—Proximity switches
    • H03K17/95—Proximity switches using a magnetic detector
    • H03K17/952—Proximity switches using a magnetic detector using inductive coils
    • H03K17/9522—Proximity switches using a magnetic detector using inductive coils with a galvanically isolated probe
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/945—Proximity switches
    • H03K17/95—Proximity switches using a magnetic detector
    • H03K17/952—Proximity switches using a magnetic detector using inductive coils
    • H03K17/9537—Proximity switches using a magnetic detector using inductive coils in a resonant circuit
    • H03K17/954—Proximity switches using a magnetic detector using inductive coils in a resonant circuit controlled by an oscillatory signal

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Electromagnetism (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
FR7107438A 1970-03-05 1971-03-04 Expired FR2084172A6 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB00567/70A GB1270346A (en) 1970-03-05 1970-03-05 Proximity switch

Publications (1)

Publication Number Publication Date
FR2084172A6 true FR2084172A6 (it) 1971-12-17

Family

ID=9970233

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7107438A Expired FR2084172A6 (it) 1970-03-05 1971-03-04

Country Status (4)

Country Link
US (1) US3719898A (it)
FR (1) FR2084172A6 (it)
GB (1) GB1270346A (it)
IT (1) IT988314B (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990013180A1 (en) * 1989-04-14 1990-11-01 Eja Engineering Company Limited Safety switch assembly

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4583006A (en) * 1983-06-09 1986-04-15 Toshio Okada High frequency oscillation type proximity switch
EP1264403B1 (de) * 2000-03-02 2007-10-17 Abb Research Ltd. Näherungssensor und baukastensystem zur bildung von näherungssensoren
DE102006003993A1 (de) * 2006-01-24 2007-07-26 Balluff Gmbh Sensorvorrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2379664A (en) * 1942-08-29 1945-07-03 Rca Corp Electrical connector for loudspeakers and the like
US3013256A (en) * 1957-05-01 1961-12-12 Acoustica Associates Inc Electronic apparatus for sensing the presence or absence of material
GB1118235A (en) * 1965-11-23 1968-06-26 Tateisi Electronics Company A proximity switch
GB1173186A (en) * 1967-03-23 1969-12-03 Square D Co Proximity Switch
US3601691A (en) * 1969-09-29 1971-08-24 Robert F Gardiner Metal detector responsive to small metallic objects for differentiating between ferrous and nonferrous objects

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990013180A1 (en) * 1989-04-14 1990-11-01 Eja Engineering Company Limited Safety switch assembly
GB2247320A (en) * 1989-04-14 1992-02-26 Eja Eng Co Safety switch assembly
US5254879A (en) * 1989-04-14 1993-10-19 Eja Engineering Plc Safety switch assembly
GB2247320B (en) * 1989-04-14 1994-01-05 Eja Eng Co Safety switch assembly

Also Published As

Publication number Publication date
DE2110514A1 (de) 1971-12-16
US3719898A (en) 1973-03-06
DE2110514B2 (de) 1972-09-21
IT988314B (it) 1975-04-10
GB1270346A (en) 1972-04-12

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