JPS504970A - - Google Patents

Info

Publication number
JPS504970A
JPS504970A JP745973A JP745973A JPS504970A JP S504970 A JPS504970 A JP S504970A JP 745973 A JP745973 A JP 745973A JP 745973 A JP745973 A JP 745973A JP S504970 A JPS504970 A JP S504970A
Authority
JP
Japan
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.)
Granted
Application number
JP745973A
Other languages
Japanese (ja)
Other versions
JPS5416837B2 (en
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 filed Critical
Publication of JPS504970A publication Critical patent/JPS504970A/ja
Publication of JPS5416837B2 publication Critical patent/JPS5416837B2/ja
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
    • G01V3/102—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 by measuring amplitude
    • 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
    • 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
    • H03K17/951—Measures for supplying operating voltage to the detector circuit
    • 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
    • H03K17/9542—Proximity switches using a magnetic detector using inductive coils in a resonant circuit forming part of an oscillator
    • H03K17/9547—Proximity switches using a magnetic detector using inductive coils in a resonant circuit forming part of an oscillator with variable amplitude

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)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Electronic Switches (AREA)
  • Power Conversion In General (AREA)
JP745973A 1972-01-22 1973-01-18 Expired JPS5416837B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722203038 DE2203038C3 (en) 1972-01-22 1972-01-22 Electronic, contactless switching device

Publications (2)

Publication Number Publication Date
JPS504970A true JPS504970A (en) 1975-01-20
JPS5416837B2 JPS5416837B2 (en) 1979-06-25

Family

ID=5833739

Family Applications (1)

Application Number Title Priority Date Filing Date
JP745973A Expired JPS5416837B2 (en) 1972-01-22 1973-01-18

Country Status (7)

Country Link
JP (1) JPS5416837B2 (en)
CH (1) CH564288A5 (en)
DE (1) DE2203038C3 (en)
FR (1) FR2169080B1 (en)
GB (1) GB1423311A (en)
IT (1) IT978329B (en)
SE (1) SE381543B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57188291A (en) * 1981-05-14 1982-11-19 Nippon Kentetsu Co Ltd Dehydration control system of washing machine

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2552310C3 (en) * 1974-11-22 1988-02-11 Square D Co., Park Ridge, Ill. Electrical proximity switch
DE2515654B2 (en) * 1975-04-10 1979-10-18 Klaschka, Walter, Dr.-Ing., 7531 Tiefenbronn Proximity switch
DE3321838A1 (en) * 1983-06-16 1984-12-20 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for a proximity switch with two connections
US4803418A (en) * 1986-09-02 1989-02-07 Ritchie Gordon S In-line electrical switch for AC power supply
GB2195441A (en) * 1986-09-02 1988-04-07 Ritchie Gordon S In-line proximity switch
DE3722335A1 (en) * 1987-07-07 1989-01-19 Ifm Electronic Gmbh ELECTRONIC, PREFERABLY CONTACTLESS SWITCHGEAR
DE4023529C3 (en) * 1990-06-11 1995-12-07 Ifm Electronic Gmbh Inductive, capacitive or optical proximity switch
DE4111297C1 (en) * 1991-04-08 1992-06-17 Ifm Electronic Gmbh, 4300 Essen, De
DE4023502A1 (en) * 1990-07-24 1992-02-06 Ifm Electronic Gmbh Electronic switch with e.g. opto-electronic proximity sensor
DE4114763C1 (en) * 1991-05-06 1992-11-05 Ifm Electronic Gmbh, 4300 Essen, De

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3254236A (en) * 1963-11-29 1966-05-31 Gen Electric Voltage sharing circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57188291A (en) * 1981-05-14 1982-11-19 Nippon Kentetsu Co Ltd Dehydration control system of washing machine

Also Published As

Publication number Publication date
GB1423311A (en) 1976-02-04
SE381543B (en) 1975-12-08
FR2169080A1 (en) 1973-09-07
FR2169080B1 (en) 1976-08-27
CH564288A5 (en) 1975-07-15
DE2203038C3 (en) 1975-10-09
DE2203038A1 (en) 1973-07-26
JPS5416837B2 (en) 1979-06-25
DE2203038B2 (en) 1975-03-06
IT978329B (en) 1974-09-20

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