ATE223002T1 - PRESSURE-ACTUATED CYLINDER-PISTON ARRANGEMENT WITH A MAGNETIC FIELD SENSOR - Google Patents

PRESSURE-ACTUATED CYLINDER-PISTON ARRANGEMENT WITH A MAGNETIC FIELD SENSOR

Info

Publication number
ATE223002T1
ATE223002T1 AT95120518T AT95120518T ATE223002T1 AT E223002 T1 ATE223002 T1 AT E223002T1 AT 95120518 T AT95120518 T AT 95120518T AT 95120518 T AT95120518 T AT 95120518T AT E223002 T1 ATE223002 T1 AT E223002T1
Authority
AT
Austria
Prior art keywords
piston
magnetic field
field sensor
pressure
cylinder
Prior art date
Application number
AT95120518T
Other languages
German (de)
Inventor
Albert Dipl-Ing Beetz
Original Assignee
Beetz Hydraulik Gmbh
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 Beetz Hydraulik Gmbh filed Critical Beetz Hydraulik Gmbh
Application granted granted Critical
Publication of ATE223002T1 publication Critical patent/ATE223002T1/en

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
    • F15B15/2807—Position switches, i.e. means for sensing of discrete positions only, e.g. limit switches

Abstract

The piston-cylinder device has an annular permanent magnet (3) attached to the piston (11), cooperating with a magnetic field sensor (2) within the cylinder (10), for detecting the piston position. The permanent magnet is magnetised in the axial direction of the piston-cylinder device and provided by ferromagnetic discs (32,33) for guiding the magnetic flux. The piston has an open groove (31) receiving the permanent magnet, which has an outer dia. only slightly less than the inner dia. of the cylinder, which has a recess receiving a sleeve (21) of a non-magnetic material, incorporating the magnetic field sensor.
AT95120518T 1995-01-04 1995-12-23 PRESSURE-ACTUATED CYLINDER-PISTON ARRANGEMENT WITH A MAGNETIC FIELD SENSOR ATE223002T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19500137A DE19500137A1 (en) 1995-01-04 1995-01-04 Fluid-operated cylinder-piston arrangement with a magnetic field sensor

Publications (1)

Publication Number Publication Date
ATE223002T1 true ATE223002T1 (en) 2002-09-15

Family

ID=7750997

Family Applications (1)

Application Number Title Priority Date Filing Date
AT95120518T ATE223002T1 (en) 1995-01-04 1995-12-23 PRESSURE-ACTUATED CYLINDER-PISTON ARRANGEMENT WITH A MAGNETIC FIELD SENSOR

Country Status (3)

Country Link
EP (1) EP0721067B1 (en)
AT (1) ATE223002T1 (en)
DE (2) DE19500137A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29607993U1 (en) * 1996-05-03 1996-08-01 Festo Kg Piston for a working cylinder
DE19637296A1 (en) * 1996-09-13 1998-03-19 Wabco Gmbh Piston / cylinder arrangement
DE19712829B4 (en) * 1997-03-26 2005-02-17 Sick Ag Device for detecting the position of a moving object
DE19752671B4 (en) * 1997-11-28 2006-11-23 Ludwig Ehrhardt Gmbh Block cylinder for holding and guiding tools on a machine tool or on a work table
DE19756639A1 (en) 1997-12-19 1999-06-24 Zahnradfabrik Friedrichshafen Gear changing system for stepped reduction gearbox of vehicle
DE19756637A1 (en) * 1997-12-19 1999-06-24 Zahnradfabrik Friedrichshafen Gear selection control for transmission
DE10053995A1 (en) * 2000-10-31 2002-05-08 Continental Teves Ag & Co Ohg Signal generator with Hall sensor integrated in a master cylinder
DE10304551A1 (en) * 2003-02-04 2004-08-12 Mann + Hummel Gmbh Control element with position detection
DE10310428A1 (en) 2003-03-11 2004-09-30 Hydac Technology Gmbh piston accumulators
DE102005030722A1 (en) * 2005-07-01 2007-01-04 Bosch Rexroth Teknik Ab Actuating cylinder used in handling and transport systems comprises a measuring unit with a magnetic field sensor arranged relative to the magnetic field at a specified angle to the main measuring direction
CN102943784B (en) * 2012-11-19 2015-06-10 湖南特力液压有限公司 Cylinder barrel, hydraulic cylinder and pumping equipment comprising hydraulic cylinder
DE202013010056U1 (en) * 2013-11-07 2015-02-10 Bümach Engineering International B.V. working cylinder
DE102016210002A1 (en) * 2016-06-07 2017-12-07 Zf Friedrichshafen Ag Gearbox with a switching unit

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8209420U1 (en) * 1982-04-02 1983-09-15 Robert Bosch Gmbh, 7000 Stuttgart PISTON FOR CONTACTLESS PISTON POSITION SENSING
DE3510601A1 (en) * 1985-03-23 1986-09-25 Wabco Westinghouse Steuerungstechnik GmbH & Co, 3000 Hannover Piston unit for a working cylinder, with a device for detecting the piston position
CH674058A5 (en) * 1986-10-22 1990-04-30 Festo Kg
JPS63122902A (en) * 1986-11-13 1988-05-26 Ckd Controls Ltd Apparatus for confirming position of moving body
DE9010114U1 (en) * 1990-07-03 1990-09-06 Festo Kg, 7300 Esslingen, De
DE4122481C2 (en) * 1991-07-06 1995-08-31 Kuhnke Gmbh Kg H Piston-cylinder arrangement
DE9305640U1 (en) * 1993-04-15 1994-08-25 Hydraulik Techniek Pressure operated cylinder

Also Published As

Publication number Publication date
DE19500137A1 (en) 1996-07-11
EP0721067A3 (en) 1998-02-11
EP0721067A2 (en) 1996-07-10
DE59510348D1 (en) 2002-10-02
EP0721067B1 (en) 2002-08-28

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