SE8006315L - ELECTRONIC, DOUBLE-FREE WORKING SWITCH - Google Patents

ELECTRONIC, DOUBLE-FREE WORKING SWITCH

Info

Publication number
SE8006315L
SE8006315L SE8006315A SE8006315A SE8006315L SE 8006315 L SE8006315 L SE 8006315L SE 8006315 A SE8006315 A SE 8006315A SE 8006315 A SE8006315 A SE 8006315A SE 8006315 L SE8006315 L SE 8006315L
Authority
SE
Sweden
Prior art keywords
oscillator
electronic
double
ferrite pot
consist
Prior art date
Application number
SE8006315A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
Robert Buck
Gerd Marhofer
Original Assignee
Robert Buck
Gerd Marhofer
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 Robert Buck, Gerd Marhofer filed Critical Robert Buck
Publication of SE8006315L publication Critical patent/SE8006315L/en

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

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)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Electronic Switches (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)

Abstract

A contactless electronic switching device consisting of on oscillator (1) susceptible to external influence, an electronic switch (3) controllable by the oscillator, has the coil (5) of the oscillator electrically screened on all sides, so as to suppress interference surges. When the oscillator coil (5) is located in a ferrite pot (6) open on one side, the open side of the ferrite pot is provided with an "electrical" screen (7), which may consist of laminar distribution of electrically conducting material, e.g., carbon black and/or graphite, or it may consist of a very thin aluminium or copper foil, the "electrical" screen preferably being conductively connected to the ferrite pot. <IMAGE>
SE8006315A 1979-10-31 1980-09-10 ELECTRONIC, DOUBLE-FREE WORKING SWITCH SE8006315L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2943911A DE2943911B1 (en) 1979-10-31 1979-10-31 Electronic, non-contact switching device

Publications (1)

Publication Number Publication Date
SE8006315L true SE8006315L (en) 1981-05-01

Family

ID=6084787

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8006315A SE8006315L (en) 1979-10-31 1980-09-10 ELECTRONIC, DOUBLE-FREE WORKING SWITCH

Country Status (6)

Country Link
JP (1) JPS56107640A (en)
DE (1) DE2943911B1 (en)
FR (1) FR2469048A1 (en)
GB (1) GB2062242A (en)
IT (1) IT1149229B (en)
SE (1) SE8006315L (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982001630A1 (en) * 1980-10-29 1982-05-13 Harris Geoffrey J Proximity switch
DE3244507C2 (en) * 1981-12-08 1986-02-27 Werner Turck Gmbh & Co Kg, 5884 Halver Magnetic field dependent inductive proximity switch
US4678994A (en) * 1984-06-27 1987-07-07 Digital Products Corporation Methods and apparatus employing apparent resonant properties of thin conducting materials
DE3427498C2 (en) * 1984-07-26 1986-08-07 Ifm Electronic Gmbh, 4300 Essen Electronic, preferably non-contact switching device
DE3438998A1 (en) * 1984-10-25 1986-04-30 Werner Turck Gmbh & Co Kg, 5884 Halver Inductive proximity switch which can be installed flush in a metal wall
DE3722335A1 (en) * 1987-07-07 1989-01-19 Ifm Electronic Gmbh ELECTRONIC, PREFERABLY CONTACTLESS SWITCHGEAR
DE3722334A1 (en) 1987-07-07 1989-02-09 Ifm Electronic Gmbh ELECTRONIC, 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
DE4114763C1 (en) * 1991-05-06 1992-11-05 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

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3292052A (en) * 1963-09-19 1966-12-13 Cutler Hammer Inc Proximity switching system
GB1078176A (en) * 1964-10-13 1967-08-02 Tesla Np Inductive measuring device
US3469015A (en) * 1967-01-13 1969-09-23 Sierracin Corp Conductive panel
GB1195782A (en) * 1967-09-05 1970-06-24 Eltra Corp Electronic Conductor Detector and Indicator
FR1592392A (en) * 1968-11-20 1970-05-11
DE1966213B2 (en) * 1969-10-10 1974-01-17 Ifm Electronic Geraete Gmbh & Co Kg, 4300 Essen Electronic, contactless working distance indicator. Eliminated from: 1951137
US3659194A (en) * 1970-11-25 1972-04-25 Alfred A Blackerby Magnetic sensor having a heat treated housing for collimating the sensor{40 s flux
DE2220944C2 (en) * 1972-04-28 1974-02-14 Guenther Dipl.-Ing. 2209 Sushoern Weber Electronic, contactless switching device
JPS523706Y2 (en) * 1973-09-14 1977-01-26

Also Published As

Publication number Publication date
JPS56107640A (en) 1981-08-26
IT1149229B (en) 1986-12-03
FR2469048A1 (en) 1981-05-08
GB2062242A (en) 1981-05-20
IT8025523A0 (en) 1980-10-23
DE2943911B1 (en) 1981-06-04

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