MY127704A - Eddy current measuring device for an indicator instrument - Google Patents

Eddy current measuring device for an indicator instrument

Info

Publication number
MY127704A
MY127704A MYPI97005975A MYPI9705975A MY127704A MY 127704 A MY127704 A MY 127704A MY PI97005975 A MYPI97005975 A MY PI97005975A MY PI9705975 A MYPI9705975 A MY PI9705975A MY 127704 A MY127704 A MY 127704A
Authority
MY
Malaysia
Prior art keywords
eddy current
indicator
current body
shaft
measuring device
Prior art date
Application number
MYPI97005975A
Inventor
Klaus-Jurgen Neidhardt
Karl-Heinz Mittenbuhler
Heinrich-Jochen Dr Blume
Werner Duberg
Walter Rub
Michael Kasper
Frank Weiand
Manuela Habermann
Christian Beckhaus
Original Assignee
Mannesmann Vdo 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 Mannesmann Vdo Ag filed Critical Mannesmann Vdo Ag
Publication of MY127704A publication Critical patent/MY127704A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/49—Devices characterised by the use of electric or magnetic means for measuring angular speed using eddy currents
    • G01P3/495—Devices characterised by the use of electric or magnetic means for measuring angular speed using eddy currents where the indicating means responds to forces produced by the eddy currents and the generating magnetic field
    • G01P3/4956—Devices characterised by the use of electric or magnetic means for measuring angular speed using eddy currents where the indicating means responds to forces produced by the eddy currents and the generating magnetic field with thermal compensation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/75—Circuitry for compensating brightness variation in the scene by influencing optical camera components

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Measuring Volume Flow (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
  • Measuring Magnetic Variables (AREA)
  • Power Steering Mechanism (AREA)

Abstract

IN AN EDDY CURRENT MEASURING DEVICE FOR AN INDICATOR INSTRUMENT WITH A ROTARY MAGNET ATTACHED TO A DRIVE SHAFT SUCH THAT IT CANNOT BE ROTATED INSTALLED VIS-A-VIS AN EDDY CURRENT BODY MADE OF AN ELECTRICALLY CONDUCTIVE MATERIAL INSTALLED SUCH THAT IT CANNOT BE ROTATED ON AN INDICATOR SHAFT, WHICH MAGNET IS DESIGNED TO TRANSMIT AN INITIAL TORQUE TO THE INDICATOR SHAFT WHEN THE DRIVE SHAFT IS TURNED AND WITH A SECOND TORSION SPRING TRANSMITTING TORQUE, IN THE OPPOSITE DIRECTION TO THE INITIAL TORQUE, TO THE INDICATOR SHAFT, FITTED WITH A RETURN CLOSURE ELEMENT BEHIND THE EDDY CURRENT BODY AND/OR BEHIND THE ROTARY MAGNET AND A TEMPERATURE-DEPENDENT COMPENSATION ELEMENT FOR COMPENSATION OF AN ATTENUATION OF THE MAGNETIC FIELD OF THE ROTARY MAGNET AND REDUCTION OF THE CONDUCTIVITY OF THE EDDY CURRENT BODY WITH INCREASING TEMPERATURES, THE COMPENSATION ELEMENT (14-17) IS TO BE DESIGNED AS A SPRING ELEMENT SUCH AS TO REDUCE THE SECONDARY TORQUE TRANSMITTED FROM THE TORSION SPRING (11) TO THE INDICATOR SHAFT (10) OR MAINTAIN THE CONSTANCY OF THE INITIAL TORQUE TRANSMITTED TO THE EDDY CURRENT BODY (9) AT INCREASING TEMPERATURES.(FIG. 1)
MYPI97005975A 1996-12-12 1997-12-11 Eddy current measuring device for an indicator instrument MY127704A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19651614A DE19651614B4 (en) 1996-12-12 1996-12-12 Wirbelstrommeßwerk for a pointer instrument

Publications (1)

Publication Number Publication Date
MY127704A true MY127704A (en) 2006-12-29

Family

ID=7814431

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI97005975A MY127704A (en) 1996-12-12 1997-12-11 Eddy current measuring device for an indicator instrument

Country Status (7)

Country Link
JP (1) JP2001510561A (en)
KR (1) KR100491154B1 (en)
CN (1) CN1120373C (en)
BR (1) BR9714020A (en)
DE (1) DE19651614B4 (en)
MY (1) MY127704A (en)
WO (1) WO1998026296A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015104455B4 (en) * 2015-03-25 2020-11-19 Lorenz Hasenbach GmbH u. Co KG Fall protection runner and safety system with such a fall protection runner
CN108474655B (en) * 2015-12-15 2020-08-28 天宝公司 Measuring instrument with optical platform compensating for temperature variations
DE102016119576B4 (en) * 2016-10-13 2020-11-05 Lorenz Hasenbach GmbH u. Co KG Fall protection runner and safety system with fall protection runner
DE102016119575B4 (en) * 2016-10-13 2020-11-05 Lorenz Hasenbach GmbH u. Co KG Fall protection runner and safety system with fall protection runner

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE258719C (en) *
DE356364C (en) * 1922-07-20 Heinrich Wolfer Device for compensating the temperature error in eddy current tachometers
DE232C (en) * 1877-07-02 C. HÄRTUNG, Ingenieur, in Nordhausen Precision control influenced by the regulator
DE356C (en) * 1877-08-25 H. SEEGER in Seegerhall Hyacinth pot
DE1764687A1 (en) * 1968-07-17 1971-10-21 Krupp Gmbh Magnetic components for eddy current measuring purposes, in particular tachometers
DE2232422C2 (en) * 1972-07-01 1984-03-08 Max 5060 Bergisch Gladbach Baermann Eddy current tachometer with temp. compensation - has strip-shaped compensation element on magnetic bodys inner wall
DE3113234A1 (en) * 1981-04-02 1982-10-21 Vdo Adolf Schindling Ag, 6000 Frankfurt PERMANENT MAGNETIC BODY MADE OF PLASTIC-BONDED MAGNETIC MATERIAL, METHOD FOR THE PRODUCTION THEREOF AND VERBY CURRENT TACHOMETER WITH SUCH A PERMANENT MAGNETIC BODY

Also Published As

Publication number Publication date
DE19651614A1 (en) 1998-06-18
CN1240512A (en) 2000-01-05
KR20000057319A (en) 2000-09-15
BR9714020A (en) 2000-05-09
WO1998026296A1 (en) 1998-06-18
KR100491154B1 (en) 2005-05-24
CN1120373C (en) 2003-09-03
JP2001510561A (en) 2001-07-31
DE19651614B4 (en) 2005-03-24

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