EP0268030A3 - Potentiometer or adjustable resistorce - Google Patents

Potentiometer or adjustable resistorce Download PDF

Info

Publication number
EP0268030A3
EP0268030A3 EP87112533A EP87112533A EP0268030A3 EP 0268030 A3 EP0268030 A3 EP 0268030A3 EP 87112533 A EP87112533 A EP 87112533A EP 87112533 A EP87112533 A EP 87112533A EP 0268030 A3 EP0268030 A3 EP 0268030A3
Authority
EP
European Patent Office
Prior art keywords
operating member
contact member
contact
joint
potentiometer
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.)
Granted
Application number
EP87112533A
Other languages
German (de)
Other versions
EP0268030A2 (en
EP0268030B1 (en
Inventor
Helmut Gottling
Ralf Kook
Rudolf Ing. Grad. Moller
Peter Muller
Gerhard Ing. Grad. Scharnowski
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.)
Aventics GmbH
Original Assignee
Wabco Westinghouse Steuerungstechnik and Co 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 Wabco Westinghouse Steuerungstechnik and Co GmbH filed Critical Wabco Westinghouse Steuerungstechnik and Co GmbH
Priority to AT87112533T priority Critical patent/ATE77711T1/en
Publication of EP0268030A2 publication Critical patent/EP0268030A2/en
Publication of EP0268030A3 publication Critical patent/EP0268030A3/en
Application granted granted Critical
Publication of EP0268030B1 publication Critical patent/EP0268030B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F15B15/2853—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT using potentiometers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H01C10/14—Adjustable resistors adjustable by auxiliary driving means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H01C10/30—Adjustable resistors the contact sliding along resistive element
    • H01C10/38—Adjustable resistors the contact sliding along resistive element the contact moving along a straight path

Abstract

In a potentiometer, for reliability reasons it is necessary for the contact member, which interacts with the resistance track and can be driven by an operating member, to be supported such that it cannot rotate with respect to the resistance track. In order that the operating member can be rotated with respect to the contact member, known potentiometers have a joint between the contact member and the operating member. Such a joint is costly to manufacture. <??>In order to permit a rotational movement between the contact member and the operating member, without a joint having to be provided between these two parts, a permanent magnet (10) is arranged on the operating member, as shown in Fig. 1, which permanent magnet (10) interacts with a part (22) of the contact member (15, 16, 22) consisting of a ferro-magnetic material. In the case of a shifting movement of the operating member, the contact member (15, 16, 22) is driven by magnetic force without contact, i.e. is driven along the resistance track. <IMAGE>
EP87112533A 1986-11-15 1987-08-28 Potentiometer or adjustable resistorce Expired - Lifetime EP0268030B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87112533T ATE77711T1 (en) 1986-11-15 1987-08-28 POTENTIOMETER OR VARIABLE RESISTANCE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3639150 1986-11-15
DE19863639150 DE3639150A1 (en) 1986-11-15 1986-11-15 POTENTIOMETER OR CHANGEABLE RESISTANCE

Publications (3)

Publication Number Publication Date
EP0268030A2 EP0268030A2 (en) 1988-05-25
EP0268030A3 true EP0268030A3 (en) 1989-11-29
EP0268030B1 EP0268030B1 (en) 1992-06-24

Family

ID=6314078

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87112533A Expired - Lifetime EP0268030B1 (en) 1986-11-15 1987-08-28 Potentiometer or adjustable resistorce

Country Status (4)

Country Link
US (1) US4910491A (en)
EP (1) EP0268030B1 (en)
AT (1) ATE77711T1 (en)
DE (2) DE3639150A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4015720A1 (en) * 1990-05-16 1992-04-09 Helag Electronic Gmbh ELECTRICAL TRAVEL OR ANGLE SENSOR
DE4105703A1 (en) * 1991-02-21 1992-08-27 Mannesmann Ag POTENTIOMETER DEVICE
DE4105702A1 (en) * 1991-02-21 1992-09-03 Mannesmann Ag LINEAR SENSOR
DE4141739A1 (en) * 1991-12-13 1993-06-17 Mannesmann Ag Method for operating resistive displacement measuring unit e.g. potentiometer - using movable system elements e.g. piston and rods in cylinder and measuring unit before first working operation is calibrated positionally
US5589664A (en) * 1993-09-21 1996-12-31 Temper Corporation Apparatus for containing electrical components for sensing or measuring magnetic fields
DE19606609A1 (en) * 1996-02-22 1997-08-28 Claas Ohg Hydraulic steering device for self propelled drive machines e.g. forest harvesters or lawn mowers
DE60140295D1 (en) * 2001-06-07 2009-12-10 Gefran Spa Arrangement of a position sensor in a piston-cylinder unit
DE102007046139A1 (en) * 2007-09-27 2009-04-02 Deere & Company, Moline Measuring device and measuring method
US11248427B2 (en) 2018-08-06 2022-02-15 Schlumberger Technology Corporation Systems and methods for manipulating wellbore completion products

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0082933A1 (en) * 1981-12-14 1983-07-06 WABCO Westinghouse Steuerungstechnik GmbH &amp; Co. Device for sensing the position of a piston in a cylinder
DE3342492A1 (en) * 1982-11-24 1984-05-24 CTS Corp., 46514 Elkhart, Ind. LINEAR POTENTIOMETER AND METHOD FOR THE PRODUCTION THEREOF
EP0128881A2 (en) * 1983-03-22 1984-12-19 Hara Production Aktiebolag Potentiometer device for determining the position of hydraulic pistons and the like
DE3325400A1 (en) * 1983-07-14 1985-02-14 Integral Hydraulik & Co, 4000 Düsseldorf Hydraulic cylinder with internal displacement conversion
EP0177693A2 (en) * 1984-10-05 1986-04-16 WABCO Westinghouse Steuerungstechnik GmbH &amp; Co. Potentiometer

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5821126Y2 (en) * 1976-08-06 1983-05-04 電気音響株式会社 potentiometer
US4125821A (en) * 1977-08-05 1978-11-14 Denki Onkyo Company, Limited Potentiometer providing a non-linear output
JPS5487561A (en) * 1977-12-23 1979-07-12 Aisin Seiki Oil level detector
JPS57162405A (en) * 1981-03-31 1982-10-06 Kogyo Gijutsuin Noncontact potentiometer
DE3241525A1 (en) * 1982-11-10 1984-05-10 Wabco Westinghouse Steuerungstechnik GmbH & Co, 3000 Hannover DEVICE FOR DETECTING THE POSITION OR / AND SPEED OF THE PISTON OF A WORK CYLINDER
JPS6160135U (en) * 1984-09-27 1986-04-23
DE3442879C2 (en) * 1984-11-24 1994-09-01 Wabco Vermoegensverwaltung Means for detecting the relative position of two parts movable relative to each other

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0082933A1 (en) * 1981-12-14 1983-07-06 WABCO Westinghouse Steuerungstechnik GmbH &amp; Co. Device for sensing the position of a piston in a cylinder
DE3342492A1 (en) * 1982-11-24 1984-05-24 CTS Corp., 46514 Elkhart, Ind. LINEAR POTENTIOMETER AND METHOD FOR THE PRODUCTION THEREOF
EP0128881A2 (en) * 1983-03-22 1984-12-19 Hara Production Aktiebolag Potentiometer device for determining the position of hydraulic pistons and the like
DE3325400A1 (en) * 1983-07-14 1985-02-14 Integral Hydraulik & Co, 4000 Düsseldorf Hydraulic cylinder with internal displacement conversion
EP0177693A2 (en) * 1984-10-05 1986-04-16 WABCO Westinghouse Steuerungstechnik GmbH &amp; Co. Potentiometer

Also Published As

Publication number Publication date
EP0268030A2 (en) 1988-05-25
ATE77711T1 (en) 1992-07-15
DE3639150A1 (en) 1988-05-19
US4910491A (en) 1990-03-20
DE3780001D1 (en) 1992-07-30
EP0268030B1 (en) 1992-06-24

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