GB2011629A - Monitoring piston and cylinder unit actuation - Google Patents

Monitoring piston and cylinder unit actuation

Info

Publication number
GB2011629A
GB2011629A GB7850292A GB7850292A GB2011629A GB 2011629 A GB2011629 A GB 2011629A GB 7850292 A GB7850292 A GB 7850292A GB 7850292 A GB7850292 A GB 7850292A GB 2011629 A GB2011629 A GB 2011629A
Authority
GB
United Kingdom
Prior art keywords
piston
elements
cylinder
cylinder unit
measuring device
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
GB7850292A
Other versions
GB2011629B (en
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.)
Metacon AG
Original Assignee
Metacon AG
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 Metacon AG filed Critical Metacon AG
Publication of GB2011629A publication Critical patent/GB2011629A/en
Application granted granted Critical
Publication of GB2011629B publication Critical patent/GB2011629B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01D5/12—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 electric or magnetic means
    • G01D5/14—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 electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/20—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 electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
    • G01D5/22—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 electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils
    • G01D5/225—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 electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils by influencing the mutual induction between the two coils
    • 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
    • F15B15/2861—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT using magnetic means
    • 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
    • G01D5/12—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 electric or magnetic means
    • G01D5/14—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 electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/20—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 electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
    • G01D5/22—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 electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils
    • G01D5/225—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 electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils by influencing the mutual induction between the two coils
    • G01D5/2258—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 electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils by influencing the mutual induction between the two coils by a movable ferromagnetic element, e.g. core

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (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)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

Apparatus for monitoring the actuation of a piston and cylinder unit according to the invention comprises a position measuring device (15) incorporated in the unit (7). The position measuring device comprises two relatively movable electrically cooperating elements (16, 18) mounted within the piston rod (6), one element (16) being fixed to the cylinder and the other element (18) being fixed to the piston. The two elements may comprise a hollow, cylindrical induction coil device (16) with exciter coil 29 and receiver coils 28, 30 and a permanent magnet (18) movable within and longitudinally of the device. Relative movement of the elements generates an output signal representative of the relative position of the piston and cylinder. The position measuring device may be calibrated by relative movement of the elements. The apparatus can be used in conjunction with vertical electric control means for the piston and cylinder unit. <IMAGE>
GB7850292A 1977-12-29 1978-12-29 Apparatus for monitoring the actuation of a piston and cylinder unit Expired GB2011629B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2758653 1977-12-29

Publications (2)

Publication Number Publication Date
GB2011629A true GB2011629A (en) 1979-07-11
GB2011629B GB2011629B (en) 1983-01-12

Family

ID=6027607

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7850292A Expired GB2011629B (en) 1977-12-29 1978-12-29 Apparatus for monitoring the actuation of a piston and cylinder unit

Country Status (11)

Country Link
JP (2) JPS54100766A (en)
AT (1) AT382102B (en)
BE (1) BE873230A (en)
CH (1) CH639464A5 (en)
CS (1) CS219897B2 (en)
DD (1) DD141188A5 (en)
FR (1) FR2413572A1 (en)
GB (1) GB2011629B (en)
IT (2) IT7829915A0 (en)
LU (1) LU80740A1 (en)
PL (1) PL114711B1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2509466A1 (en) * 1981-07-11 1983-01-14 Bosch Gmbh Robert INDUCTIVE DISPLACEMENT SENSOR FOR FLUID ADJUSTING MEMBER
FR2559822A1 (en) * 1984-02-16 1985-08-23 Bygg Och Transportekonomie Ab HYDRAULIC TOOL FOR TURNING ON SIMILAR CABLES, RODS AND COMPONENTS IN CONCRETE STRUCTURES
FR2689853A1 (en) * 1991-10-25 1993-10-15 United Technologies Corp Linear variable differential transformer for a device for varying the pitch of a helix.
WO2008131712A1 (en) * 2007-04-26 2008-11-06 Sms Siemag Ag Continuous casting mold
DE202015104846U1 (en) 2014-09-12 2015-11-17 Binar Quick-Lift Systems Ab Operating device for manually controlling a load suspended on the operating device
FR3028835A1 (en) * 2014-11-25 2016-05-27 Snecma INSTRUMENT ACTUATING DEVICE FOR AN AIRCRAFT TURBOMACHINE

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK165562C (en) * 1987-02-20 1993-04-26 Niels Hvilsted HYDRAULIC CYLINDER WITH BUILT-IN INDUCTIVE Piston Position Sensor.
DE3730926A1 (en) * 1987-09-15 1989-03-30 Bosch Gmbh Robert Double-acting cylinder
DE3900086A1 (en) * 1989-01-03 1990-07-05 Norbert Kolb Adjusting device with a sensor for an implement, in particular a two-way turn-over plough
CH689460A5 (en) * 1995-01-26 1999-04-30 Rotovolumetric Ag Piston-cylinder device with inductive stroke-measuring sensor for stroke controlled lifting of loads
JP5547596B2 (en) * 2010-09-29 2014-07-16 ナブテスコ株式会社 Actuator position detector
DE102012006564B3 (en) * 2012-03-30 2013-08-08 Festo Ag & Co. Kg Driving apparatus for use with manipulator for handling objects, has supporting unit whose supporting locations are arranged in axis direction of major axis with spacing in drive chamber

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1382342A (en) * 1963-11-09 1964-12-18 Mitchell Hydraulics Ltd Improvements to mechanical control devices actuated by pressurized fluid
US3403365A (en) * 1964-05-04 1968-09-24 Gen Electric Shielded transducer having means to reduce core movement
FR1525363A (en) * 1967-04-07 1968-05-17 Compteurs Et Moteurs Aster Jack comprising a device for monitoring and controlling its position
AT312319B (en) * 1967-12-30 1973-12-27 Joseph Anton Bachmann Device for travel measurement in a piston-cylinder unit of machine tools or the like.

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2509466A1 (en) * 1981-07-11 1983-01-14 Bosch Gmbh Robert INDUCTIVE DISPLACEMENT SENSOR FOR FLUID ADJUSTING MEMBER
FR2559822A1 (en) * 1984-02-16 1985-08-23 Bygg Och Transportekonomie Ab HYDRAULIC TOOL FOR TURNING ON SIMILAR CABLES, RODS AND COMPONENTS IN CONCRETE STRUCTURES
FR2689853A1 (en) * 1991-10-25 1993-10-15 United Technologies Corp Linear variable differential transformer for a device for varying the pitch of a helix.
WO2008131712A1 (en) * 2007-04-26 2008-11-06 Sms Siemag Ag Continuous casting mold
DE202015104846U1 (en) 2014-09-12 2015-11-17 Binar Quick-Lift Systems Ab Operating device for manually controlling a load suspended on the operating device
US10457527B2 (en) 2014-09-12 2019-10-29 Binar Quick-Lift Systems Ab Operation device for manual control of a load suspended in the operation device
FR3028835A1 (en) * 2014-11-25 2016-05-27 Snecma INSTRUMENT ACTUATING DEVICE FOR AN AIRCRAFT TURBOMACHINE

Also Published As

Publication number Publication date
IT1100868B (en) 1985-09-28
IT7829915A0 (en) 1978-11-17
FR2413572B1 (en) 1983-11-25
PL114711B1 (en) 1981-02-28
JPS54100766A (en) 1979-08-08
GB2011629B (en) 1983-01-12
CS219897B2 (en) 1983-03-25
JPS6249707U (en) 1987-03-27
AT382102B (en) 1987-01-12
PL212211A1 (en) 1979-09-10
LU80740A1 (en) 1979-04-13
IT7831332A0 (en) 1978-12-27
CH639464A5 (en) 1983-11-15
ATA938378A (en) 1986-06-15
FR2413572A1 (en) 1979-07-27
BE873230A (en) 1979-06-29
DD141188A5 (en) 1980-04-16

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 19981228