DE69015336D1 - Hochdruck-Näherungsschalter. - Google Patents

Hochdruck-Näherungsschalter.

Info

Publication number
DE69015336D1
DE69015336D1 DE69015336T DE69015336T DE69015336D1 DE 69015336 D1 DE69015336 D1 DE 69015336D1 DE 69015336 T DE69015336 T DE 69015336T DE 69015336 T DE69015336 T DE 69015336T DE 69015336 D1 DE69015336 D1 DE 69015336D1
Authority
DE
Germany
Prior art keywords
high pressure
proximity switch
pressure proximity
switch
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 - Fee Related
Application number
DE69015336T
Other languages
English (en)
Other versions
DE69015336T2 (de
Inventor
Paul M Astrachan
Thomas A Fletcher
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.)
Honeywell Inc
Original Assignee
Honeywell Inc
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 Honeywell Inc filed Critical Honeywell Inc
Publication of DE69015336D1 publication Critical patent/DE69015336D1/de
Application granted granted Critical
Publication of DE69015336T2 publication Critical patent/DE69015336T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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

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)
  • Measuring Magnetic Variables (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Measuring Fluid Pressure (AREA)
DE69015336T 1989-12-07 1990-12-06 Hochdruck-Näherungsschalter. Expired - Fee Related DE69015336T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/447,288 US5173658A (en) 1989-12-07 1989-12-07 Inductive proximity sensor with force transferring support post for use in high pressure environments

Publications (2)

Publication Number Publication Date
DE69015336D1 true DE69015336D1 (de) 1995-02-02
DE69015336T2 DE69015336T2 (de) 1996-01-04

Family

ID=23775753

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69015336T Expired - Fee Related DE69015336T2 (de) 1989-12-07 1990-12-06 Hochdruck-Näherungsschalter.

Country Status (4)

Country Link
US (1) US5173658A (de)
EP (1) EP0431935B1 (de)
JP (1) JPH03259783A (de)
DE (1) DE69015336T2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5714881A (en) * 1996-03-12 1998-02-03 Patriot Sensors And Controls Corporation Position measurement apparatus using wire waveguide in shock resistant suspension
US5804961A (en) * 1996-10-28 1998-09-08 Patriot Sensors & Control, Corp. Magnetostrictive waveguide position measurement apparatus using piezoelectric sensor
DE20019542U1 (de) * 2000-11-17 2002-03-21 Werner Turck GmbH & Co. KG, 58553 Halver In einem Kunststoffgehäuse gekapselter Nährungsschalter mit Abschirmung
DE602005009726D1 (de) * 2005-12-02 2008-10-23 Vibro Meter Ag Wirbelstromsensor und Sensorspule dafür
US7631697B2 (en) * 2006-11-29 2009-12-15 Schlumberger Technology Corporation Oilfield apparatus comprising swellable elastomers having nanosensors therein and methods of using same in oilfield application

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2478983A (en) * 1946-07-01 1949-08-16 Runbaken Julian Henry Electrical apparatus
US2766427A (en) * 1952-02-18 1956-10-09 Phillips Petroleum Co Line fault detector
US3942045A (en) * 1974-06-05 1976-03-02 Fiat Societa Per Azioni Speed or angular position electromagnetic transducer
US4408159A (en) * 1981-04-02 1983-10-04 Abex Corporation Proximity sensing head
US4612501A (en) * 1984-07-26 1986-09-16 General Motors Corporation Self-adjusting magnetic sensor
FR2578018B1 (fr) * 1985-02-26 1990-04-27 Electricfil Perfectionnements aux capteurs electromagnetiques
JPH0789119B2 (ja) * 1986-05-30 1995-09-27 住友電気工業株式会社 電磁発電式回転センサ
FR2608770B1 (fr) * 1986-12-23 1989-04-28 Bendix Electronics Sa Capteur electromagnetique a reluctance variable et son procede de montage
GB2208716B (en) * 1987-08-12 1991-02-27 Smiths Industries Plc Speed and torque sensors
DE3730113C1 (en) * 1987-09-08 1989-03-16 Pepperl & Fuchs Inductive sensor

Also Published As

Publication number Publication date
EP0431935B1 (de) 1994-12-21
JPH03259783A (ja) 1991-11-19
EP0431935A3 (en) 1992-07-01
EP0431935A2 (de) 1991-06-12
US5173658A (en) 1992-12-22
DE69015336T2 (de) 1996-01-04

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Legal Events

Date Code Title Description
8332 No legal effect for de
8370 Indication of lapse of patent is to be deleted
8332 No legal effect for de
8370 Indication of lapse of patent is to be deleted
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee