DE3573968D1 - Proximity switch - Google Patents

Proximity switch

Info

Publication number
DE3573968D1
DE3573968D1 DE8585109522T DE3573968T DE3573968D1 DE 3573968 D1 DE3573968 D1 DE 3573968D1 DE 8585109522 T DE8585109522 T DE 8585109522T DE 3573968 T DE3573968 T DE 3573968T DE 3573968 D1 DE3573968 D1 DE 3573968D1
Authority
DE
Germany
Prior art keywords
oscillation
proximity switch
detecting
comparison circuit
proximity
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
DE8585109522T
Other languages
English (en)
Inventor
Fumio Omron Tateisi Ele Kamiya
Hisatoshi Omron Tateisi Nodera
Kenji Omron Tateisi Elect Ueda
Keinosuke Omron Tateisi Imazu
Hidehiro Omron Tateisi Tomioka
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.)
Omron Corp
Original Assignee
Omron Tateisi Electronics 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=15660188&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3573968(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Omron Tateisi Electronics Co filed Critical Omron Tateisi Electronics Co
Application granted granted Critical
Publication of DE3573968D1 publication Critical patent/DE3573968D1/de
Expired 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
    • H03K17/95—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
DE8585109522T 1984-07-27 1985-07-29 Proximity switch Expired DE3573968D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15791384A JPS6135620A (ja) 1984-07-27 1984-07-27 近接スイツチ

Publications (1)

Publication Number Publication Date
DE3573968D1 true DE3573968D1 (en) 1989-11-30

Family

ID=15660188

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585109522T Expired DE3573968D1 (en) 1984-07-27 1985-07-29 Proximity switch

Country Status (5)

Country Link
US (1) US4644298A (de)
EP (1) EP0171013B1 (de)
JP (1) JPS6135620A (de)
AT (1) ATE47636T1 (de)
DE (1) DE3573968D1 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61199328A (ja) * 1985-02-28 1986-09-03 Omron Tateisi Electronics Co 近接スイツチ
DE3704893A1 (de) * 1987-02-17 1988-08-25 Turck Werner Kg Anordnung fuer naeherungsschalter zum schutz gegen signalverfaelschung durch magnetische wechselfelder
DE3722334A1 (de) * 1987-07-07 1989-02-09 Ifm Electronic Gmbh Elektronisches, beruehrungslos arbeitendes schaltgeraet
DE68926829T2 (de) * 1988-04-11 1997-03-06 Omron Tateisi Electronics Co Zweidraht-Sensorsystem mit Mitteln zur Selbstdiagnose
JP2540923B2 (ja) * 1988-11-30 1996-10-09 オムロン株式会社 近接スイッチおよびその発振回路
EP0404065A1 (de) * 1989-06-21 1990-12-27 Omron Corporation Sensur mit einem Oszillator
EP0523563A1 (de) * 1991-07-15 1993-01-20 Omron Corporation Annäherungsschalter
DE4325406B4 (de) * 1992-09-02 2006-02-23 Tiefenbach Gmbh Näherungsschalter
US5469364A (en) * 1993-03-15 1995-11-21 Hughey; Bradley W. Apparatus and methods for measuring and detecting variations in the value of a capacitor
DE4317359A1 (de) * 1993-05-25 1994-12-01 Balluff Gebhard Feinmech Sensor
JP3440566B2 (ja) * 1993-11-08 2003-08-25 オムロン株式会社 近接スイッチ
US5801530A (en) * 1995-04-17 1998-09-01 Namco Controls Corporation Proximity sensor having a non-ferrous metal shield for enhanced sensing range
ATE466405T1 (de) * 1998-12-08 2010-05-15 Baumer Innotec Ag Verfahren und vorrichtung zur messung der dämpfung eines lc-schwingungskreises
ES2372968T3 (es) * 2006-07-27 2012-01-30 Pepperl + Fuchs Gmbh Detector de proximidad inductivo y procedimiento para su funcionamiento.
US8319500B2 (en) 2010-05-24 2012-11-27 Honeywell International Inc. Proximity sensor with health monitoring
JP5331246B2 (ja) * 2010-06-10 2013-10-30 パナソニック株式会社 ポジションセンサ
DE102013202573B3 (de) * 2013-02-18 2014-04-17 Ifm Electronic Gmbh Induktiver Näherungsschalter
DE102014202793A1 (de) 2014-02-17 2015-08-20 Ifm Electronic Gmbh Induktiver Näherungsschalter

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1272363B (de) * 1966-09-17 1968-07-11 Bosch Gmbh Robert Elektronischer Annaeherungsschalter
US3732503A (en) * 1972-02-11 1973-05-08 W Rapp Proximity switch including variable frequency oscillator with ferrite control element
DE2722510A1 (de) * 1977-05-18 1978-11-23 Voll Walter Induktiver initiator
DE2815711A1 (de) * 1978-04-12 1980-01-31 Merten Kg Pulsotronic Elektronisches, beruehrungslos wirkendes schaltgeraet
JPS562575A (en) * 1979-06-21 1981-01-12 Takeo Ueda Proximity detector
DE3004829C2 (de) * 1980-02-09 1982-04-29 Ifm Electronic Gmbh, 4300 Essen Elektronisches, berührungslos arbeitendes Schaltgerät
DE3016821C2 (de) * 1980-05-02 1982-08-12 Honeywell Gmbh, 6000 Frankfurt Elektronischer Näherungsschalter
JPS57157636A (en) * 1981-03-23 1982-09-29 Mitsubishi Electric Corp Proximity switch circuit
DE3120884C1 (de) * 1981-05-26 1982-11-04 Ifm Electronic Gmbh, 4300 Essen Elektronisches,beruehrungslos arbeitendes Schaltgeraet
JPS57199332A (en) * 1981-06-02 1982-12-07 Mitsubishi Electric Corp Proximity switch circuit
US4543527A (en) * 1982-04-12 1985-09-24 Eaton Corporation Proximity switch exhibiting improved start-up characteristics

Also Published As

Publication number Publication date
EP0171013A1 (de) 1986-02-12
JPH0510847B2 (de) 1993-02-10
EP0171013B1 (de) 1989-10-25
US4644298A (en) 1987-02-17
ATE47636T1 (de) 1989-11-15
JPS6135620A (ja) 1986-02-20

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8365 Fully valid after opposition proceedings
8320 Willingness to grant licences declared (paragraph 23)