GB2005422A - Proximity switches - Google Patents

Proximity switches

Info

Publication number
GB2005422A
GB2005422A GB7838505A GB7838505A GB2005422A GB 2005422 A GB2005422 A GB 2005422A GB 7838505 A GB7838505 A GB 7838505A GB 7838505 A GB7838505 A GB 7838505A GB 2005422 A GB2005422 A GB 2005422A
Authority
GB
United Kingdom
Prior art keywords
electrode
oscillator
response
screening
response electrode
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.)
Withdrawn
Application number
GB7838505A
Other languages
English (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB2005422A publication Critical patent/GB2005422A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H03K17/955—Proximity switches using a capacitive detector

Landscapes

  • Electronic Switches (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
GB7838505A 1977-10-05 1978-09-28 Proximity switches Withdrawn GB2005422A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2744785A DE2744785B2 (de) 1977-10-05 1977-10-05 Elektronischer Annäherungsschalter

Publications (1)

Publication Number Publication Date
GB2005422A true GB2005422A (en) 1979-04-19

Family

ID=6020716

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7838505A Withdrawn GB2005422A (en) 1977-10-05 1978-09-28 Proximity switches

Country Status (6)

Country Link
JP (1) JPS5461677A (de)
DE (1) DE2744785B2 (de)
FR (1) FR2405594A1 (de)
GB (1) GB2005422A (de)
IT (1) IT1099239B (de)
SE (1) SE7809630L (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0191137A2 (de) * 1984-09-22 1986-08-20 Heinrich Jores Kapazitiver Annäherungssensor hoher Ansprechempfindlichkeit
WO1989008352A1 (en) * 1988-03-03 1989-09-08 Setec Messgeräte Gesellschaft M.B.H. Capacitive proximity detector
WO1990014604A1 (en) * 1989-05-17 1990-11-29 Moonstone Designs Limited Proximity sensor
GB2250822A (en) * 1989-05-17 1992-06-17 Moonstone Designs Ltd Proximity sensor
GB2279757A (en) * 1990-11-16 1995-01-11 Moonstone Technology Ltd Device for determining the presence and/or characteristics of an object or a substance
GB2265720B (en) * 1990-11-16 1995-06-14 Moonstone Designs Ltd Device for determining the presence and/or characteristics of an object or a substance
US5757196A (en) * 1995-09-28 1998-05-26 Endress + Hauser Gmbh + Co. Capacitive switch actuated by changes in a sensor capacitance
US6486680B1 (en) 2000-06-13 2002-11-26 The North American Manufacturing Company Edge detector
GB2404443A (en) * 2003-07-28 2005-02-02 Automotive Electronics Ltd Ab Capacitive proximity sensor
DE102005041114A1 (de) * 2005-08-30 2007-03-01 BSH Bosch und Siemens Hausgeräte GmbH Kapazitiver Stellstreifen und Haushaltsgerät mit einem solchen
WO2009018354A1 (en) * 2007-07-31 2009-02-05 Vermeer Manufacturing Company Apparatus and method of capacitively sensing operator presence for a stump cutter
EP2254247A1 (de) * 2009-05-18 2010-11-24 Osram Gesellschaft mit Beschränkter Haftung Sensorschaltung
US8257227B2 (en) 2007-07-31 2012-09-04 Vermeer Manufacturing Company Method and apparatus for decelerating a material reduction tool
US10039239B2 (en) 2007-07-31 2018-08-07 Vermeer Manufacturing Company Method and apparatus for controlling the operation of a stump cutter
US10205035B2 (en) 2011-04-01 2019-02-12 Oerlikon Surface Solutions Ag, Pfäffikon Proximity sensor

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3221223A1 (de) * 1982-06-04 1983-12-08 Endress U. Hauser Gmbh U. Co, 7867 Maulburg Kapazitiver naeherungsinitiator
DE3427498C2 (de) * 1984-07-26 1986-08-07 Ifm Electronic Gmbh, 4300 Essen Elektronisches, vorzugsweise berührungslos arbeitendes Schaltgerät
DE3544187A1 (de) * 1985-12-13 1987-06-19 Flowtec Ag Kapazitaetsmessschaltung
DE3722335A1 (de) * 1987-07-07 1989-01-19 Ifm Electronic Gmbh Elektronisches, vorzugsweise beruehrungslos arbeitendes schaltgeraet
DE3722334A1 (de) 1987-07-07 1989-02-09 Ifm Electronic Gmbh Elektronisches, beruehrungslos arbeitendes schaltgeraet
DE3815698A1 (de) * 1988-05-07 1989-11-16 Balluff Gebhard Feinmech Selbstpruefender, kapazitiver naeherungsschalter
DE3911009A1 (de) * 1989-04-05 1990-10-11 Ifm Electronic Gmbh Elektronischer annaeherungsschalter
DE4009697A1 (de) * 1990-03-27 1991-10-02 Fife Gmbh Vorrichtung zum beruehrungslosen erfassen der lage eines sich bewegenden materialbandes
DE4023529C3 (de) * 1990-06-11 1995-12-07 Ifm Electronic Gmbh Induktiver, kapazitiver oder optischer Näherungsschalter
DE4111297C1 (de) * 1991-04-08 1992-06-17 Ifm Electronic Gmbh, 4300 Essen, De
DE4114763C1 (de) * 1991-05-06 1992-11-05 Ifm Electronic Gmbh, 4300 Essen, De
DE4023502A1 (de) * 1990-07-24 1992-02-06 Ifm Electronic Gmbh Elektronisches schaltgeraet
DE4238992C2 (de) * 1992-11-19 1996-03-21 Ifm Electronic Gmbh Verfahren und Vorrichtung zum berührungslosen Nachweis der Annäherung eines Ansprechkörpers
DE19511646C2 (de) * 1995-03-30 1999-01-07 Fife Gmbh Vorrichtung zum berührungslosen Erfassen der Lage eines laufenden Materialbandes
DE59803939D1 (de) * 1997-11-28 2002-05-29 Iee Sarl Kapazitive distanzmessung mit einer nicht idealen messelektrode
LU90237B1 (de) * 1998-04-30 1999-11-03 Iee Sarl Kapazitive distanzmessung mit einer nicht idealen messelektrode
DE10156580B4 (de) * 2001-11-20 2005-08-11 Sie Sensorik Industrie-Elektronik Gmbh Oszillatorschaltungen zur Detektion kleiner Kapazitäten oder Kapazitätsunterschiede zum Einsatz in kapazitiven Sensoren
EP2676491B1 (de) 2011-02-18 2018-08-08 Deutsche Telekom AG Verfahren zum energiesparen beim betrieb eines ersten und eines zweiten mobilkommunikationsnetzwerks sowie mobilkommunikationsnetzwerke
DE102013201704A1 (de) * 2013-02-01 2014-08-07 Di-Soric Gmbh & Co. Kg Kapazitive Sensoranordnung und kapazitives Messverfahren mit Kompensation parasitärer Kapazitäten

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1436069A (fr) * 1965-03-12 1966-04-22 Saxby Détecteur de proximité
DE1673841C3 (de) * 1968-03-18 1978-04-20 Werner Dipl.-Ing. 6840 Lampertheim Schaller Berührungsloser kapazitiver
DE2203039C3 (de) * 1972-01-22 1974-10-10 Robert 7995 Neukirch Buck Elektronisches, berührungslos arbeitendes Schaltgerät
US3852768A (en) * 1973-08-17 1974-12-03 Ibm Charge detection for ink jet printers

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0191137A2 (de) * 1984-09-22 1986-08-20 Heinrich Jores Kapazitiver Annäherungssensor hoher Ansprechempfindlichkeit
EP0191137A3 (de) * 1984-09-22 1987-06-03 Heinrich Jores Kapazitiver Annäherungssensor hoher Ansprechempfindlichkeit
WO1989008352A1 (en) * 1988-03-03 1989-09-08 Setec Messgeräte Gesellschaft M.B.H. Capacitive proximity detector
WO1990014604A1 (en) * 1989-05-17 1990-11-29 Moonstone Designs Limited Proximity sensor
GB2250822A (en) * 1989-05-17 1992-06-17 Moonstone Designs Ltd Proximity sensor
GB2250822B (en) * 1989-05-17 1993-08-11 Moonstone Designs Ltd Proximity sensor
GB2279757A (en) * 1990-11-16 1995-01-11 Moonstone Technology Ltd Device for determining the presence and/or characteristics of an object or a substance
GB2279757B (en) * 1990-11-16 1995-06-07 Moonstone Technology Ltd Device for determining the presence and/or characteristics of an object or a substance
GB2265720B (en) * 1990-11-16 1995-06-14 Moonstone Designs Ltd Device for determining the presence and/or characteristics of an object or a substance
US5757196A (en) * 1995-09-28 1998-05-26 Endress + Hauser Gmbh + Co. Capacitive switch actuated by changes in a sensor capacitance
US6486680B1 (en) 2000-06-13 2002-11-26 The North American Manufacturing Company Edge detector
GB2404443A (en) * 2003-07-28 2005-02-02 Automotive Electronics Ltd Ab Capacitive proximity sensor
GB2404443B (en) * 2003-07-28 2007-08-01 Automotive Electronics Ltd Ab Capacitive sensor
DE102005041114A1 (de) * 2005-08-30 2007-03-01 BSH Bosch und Siemens Hausgeräte GmbH Kapazitiver Stellstreifen und Haushaltsgerät mit einem solchen
WO2009018354A1 (en) * 2007-07-31 2009-02-05 Vermeer Manufacturing Company Apparatus and method of capacitively sensing operator presence for a stump cutter
US7999562B2 (en) 2007-07-31 2011-08-16 Vermeer Manufacturing Company Apparatus and method of capacitively sensing operator presence for a stump cutter
US8257227B2 (en) 2007-07-31 2012-09-04 Vermeer Manufacturing Company Method and apparatus for decelerating a material reduction tool
US10039239B2 (en) 2007-07-31 2018-08-07 Vermeer Manufacturing Company Method and apparatus for controlling the operation of a stump cutter
EP2254247A1 (de) * 2009-05-18 2010-11-24 Osram Gesellschaft mit Beschränkter Haftung Sensorschaltung
US10205035B2 (en) 2011-04-01 2019-02-12 Oerlikon Surface Solutions Ag, Pfäffikon Proximity sensor

Also Published As

Publication number Publication date
FR2405594A1 (fr) 1979-05-04
JPS5461677A (en) 1979-05-18
IT7828446A0 (it) 1978-10-05
SE7809630L (sv) 1979-04-06
DE2744785B2 (de) 1981-05-21
IT1099239B (it) 1985-09-18
DE2744785A1 (de) 1979-04-12

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)