AU5508498A - Method and apparatus for sensing piston position - Google Patents

Method and apparatus for sensing piston position

Info

Publication number
AU5508498A
AU5508498A AU55084/98A AU5508498A AU5508498A AU 5508498 A AU5508498 A AU 5508498A AU 55084/98 A AU55084/98 A AU 55084/98A AU 5508498 A AU5508498 A AU 5508498A AU 5508498 A AU5508498 A AU 5508498A
Authority
AU
Australia
Prior art keywords
piston position
sensing piston
sensing
piston
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.)
Abandoned
Application number
AU55084/98A
Inventor
Alan A. Berger
Danley C. Chan
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.)
Case LLC
Original Assignee
Case LLC
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
Priority claimed from US08/758,092 external-priority patent/US5901633A/en
Priority claimed from US08/753,791 external-priority patent/US5977778A/en
Application filed by Case LLC filed Critical Case LLC
Publication of AU5508498A publication Critical patent/AU5508498A/en
Abandoned legal-status Critical Current

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
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/0209—Systems with very large relative bandwidth, i.e. larger than 10 %, e.g. baseband, pulse, carrier-free, ultrawideband
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Toxicology (AREA)
  • Electromagnetism (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Health & Medical Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
AU55084/98A 1996-11-27 1997-11-26 Method and apparatus for sensing piston position Abandoned AU5508498A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US08/758,092 US5901633A (en) 1996-11-27 1996-11-27 Method and apparatus for sensing piston position using a dipstick assembly
US08758092 1996-11-27
US08753791 1996-11-27
US08/753,791 US5977778A (en) 1996-11-27 1996-11-27 Method and apparatus for sensing piston position
PCT/US1997/021097 WO1998023867A1 (en) 1996-11-27 1997-11-26 Method and apparatus for sensing piston position

Publications (1)

Publication Number Publication Date
AU5508498A true AU5508498A (en) 1998-06-22

Family

ID=27115819

Family Applications (1)

Application Number Title Priority Date Filing Date
AU55084/98A Abandoned AU5508498A (en) 1996-11-27 1997-11-26 Method and apparatus for sensing piston position

Country Status (4)

Country Link
EP (1) EP0941409A1 (en)
JP (1) JP2001507105A (en)
AU (1) AU5508498A (en)
WO (1) WO1998023867A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19801054C1 (en) * 1998-01-14 1999-07-29 Mannesmann Sachs Ag Piston-cylinder unit e.g. for vibration damper or shock absorber
US6588313B2 (en) 2001-05-16 2003-07-08 Rosemont Inc. Hydraulic piston position sensor
DE10205904A1 (en) * 2002-02-13 2003-08-21 Mikrowellen Technologie Und Se Distance measuring device and method for determining a distance
US6722261B1 (en) * 2002-12-11 2004-04-20 Rosemount Inc. Hydraulic piston position sensor signal processing
DE102005052028A1 (en) * 2005-10-31 2007-05-03 Robert Bosch Gmbh Display device e.g. for positioning tool on workpiece, has transmitter for emitting signal that penetrates workpiece and receiver for receiving signal
DE102006021205A1 (en) * 2006-05-06 2007-11-15 Festo Ag & Co Microwave position measuring device and position measuring method
GB201015745D0 (en) * 2010-09-21 2010-10-27 Rolls Royce Goodrich Engine Co Position sensor system
DE102013018808A1 (en) * 2013-11-11 2015-05-13 Astyx Gmbh Distance measuring device for determining a distance and method for determining the distance

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3116333C2 (en) * 1981-04-24 1984-01-12 H. Kuhnke Gmbh Kg, 2427 Malente Measuring system for the contactless detection of the positions of the piston rod of a piston-cylinder unit
GB2172995A (en) * 1985-03-30 1986-10-01 Emhart Ind Monitoring the position of a member
US4749936A (en) * 1986-11-03 1988-06-07 Vickers, Incorporated Power transmission
US5000650A (en) 1989-05-12 1991-03-19 J.I. Case Company Automatic return to travel
US5345471A (en) 1993-04-12 1994-09-06 The Regents Of The University Of California Ultra-wideband receiver
US5457394A (en) 1993-04-12 1995-10-10 The Regents Of The University Of California Impulse radar studfinder
US5523760A (en) 1993-04-12 1996-06-04 The Regents Of The University Of California Ultra-wideband receiver
US5517198A (en) 1993-04-12 1996-05-14 The Regents Of The University Of California Ultra-wideband directional sampler
US5421416A (en) 1993-09-08 1995-06-06 Case Corporation Hitch assembly control system
US5455769A (en) 1994-06-24 1995-10-03 Case Corporation Combine head raise and lower rate control
DE9417204U1 (en) * 1994-10-26 1995-02-09 Alpine Westfalia Berg- und Tunneltechnik GmbH & Co., 44534 Lünen Device for detecting the position and / or the speed of a piston of a cylinder-piston unit
US5617034A (en) * 1995-05-09 1997-04-01 Caterpillar Inc. Signal improvement in the sensing of hydraulic cylinder piston position using electromagnetic waves

Also Published As

Publication number Publication date
WO1998023867A1 (en) 1998-06-04
JP2001507105A (en) 2001-05-29
EP0941409A1 (en) 1999-09-15

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