ZA929691B - Linear position sensor using a coaxial resonant cavity. - Google Patents

Linear position sensor using a coaxial resonant cavity.

Info

Publication number
ZA929691B
ZA929691B ZA929691A ZA929691A ZA929691B ZA 929691 B ZA929691 B ZA 929691B ZA 929691 A ZA929691 A ZA 929691A ZA 929691 A ZA929691 A ZA 929691A ZA 929691 B ZA929691 B ZA 929691B
Authority
ZA
South Africa
Prior art keywords
position sensor
resonant cavity
linear position
coaxial resonant
coaxial
Prior art date
Application number
ZA929691A
Other languages
English (en)
Inventor
Ali A Bitar
Charles Bowman
Denny Edward Morgan
Original Assignee
Caterpillar 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 Caterpillar Inc filed Critical Caterpillar Inc
Publication of ZA929691B publication Critical patent/ZA929691B/xx

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
    • F15B15/2869—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT using electromagnetic radiation, e.g. radar or microwaves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/48—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using wave or particle radiation means

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Radar, Positioning & Navigation (AREA)
  • General Physics & Mathematics (AREA)
  • Toxicology (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Actuator (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Vehicle Body Suspensions (AREA)
ZA929691A 1991-12-23 1992-12-14 Linear position sensor using a coaxial resonant cavity. ZA929691B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1991/009559 WO1993013388A1 (en) 1991-12-23 1991-12-23 Linear position sensor using a coaxial resonant cavity

Publications (1)

Publication Number Publication Date
ZA929691B true ZA929691B (en) 1993-06-09

Family

ID=1239362

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA929691A ZA929691B (en) 1991-12-23 1992-12-14 Linear position sensor using a coaxial resonant cavity.

Country Status (9)

Country Link
EP (1) EP0619012B1 (ja)
JP (1) JPH07502338A (ja)
AU (1) AU665179B2 (ja)
BR (1) BR9107332A (ja)
CA (1) CA2122603A1 (ja)
DE (1) DE69120432T2 (ja)
MY (1) MY108322A (ja)
WO (1) WO1993013388A1 (ja)
ZA (1) ZA929691B (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5608332A (en) * 1995-05-09 1997-03-04 Caterpillar Inc. Dynamic gain adjustment in electromagnetic wave hydraulic cylinder piston position sensing
US7092840B2 (en) * 2004-02-26 2006-08-15 Honeywell International, Inc. High temperature resonant transmission line sensor and methods
WO2009148376A1 (en) * 2008-06-05 2009-12-10 Atlas Copco Rock Drills Ab Device and method for sensing a parameter related to a position of a displaceable element in a rock drill

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4035762A (en) * 1974-11-04 1977-07-12 The Charles Stark Draper Laboratory, Inc. Position sensing readout
US4588953A (en) * 1983-08-11 1986-05-13 General Motors Corporation Microwave piston position location
US4689553A (en) * 1985-04-12 1987-08-25 Jodon Engineering Associates, Inc. Method and system for monitoring position of a fluid actuator employing microwave resonant cavity principles

Also Published As

Publication number Publication date
WO1993013388A1 (en) 1993-07-08
JPH07502338A (ja) 1995-03-09
DE69120432D1 (de) 1996-07-25
EP0619012A1 (en) 1994-10-12
CA2122603A1 (en) 1993-07-08
EP0619012B1 (en) 1996-06-19
BR9107332A (pt) 1996-07-30
MY108322A (en) 1996-09-30
AU665179B2 (en) 1995-12-21
AU9123891A (en) 1993-07-28
DE69120432T2 (de) 1997-02-06

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