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WO2008138848A3 - Device for and method of determining a position of a movable object - Google Patents

Device for and method of determining a position of a movable object Download PDF

Info

Publication number
WO2008138848A3
WO2008138848A3 PCT/EP2008/055674 EP2008055674W WO2008138848A3 WO 2008138848 A3 WO2008138848 A3 WO 2008138848A3 EP 2008055674 W EP2008055674 W EP 2008055674W WO 2008138848 A3 WO2008138848 A3 WO 2008138848A3
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic field
path
magnetic element
magnetic
field detector
Prior art date
Application number
PCT/EP2008/055674
Other languages
French (fr)
Other versions
WO2008138848A2 (en
Inventor
Lutz May
Original Assignee
Nct Engineering Gmbh
Lutz May
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 Nct Engineering Gmbh, Lutz May filed Critical Nct Engineering Gmbh
Publication of WO2008138848A2 publication Critical patent/WO2008138848A2/en
Publication of WO2008138848A3 publication Critical patent/WO2008138848A3/en

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
    • G01D5/142—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 using Hall-effect devices
    • G01D5/145—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 using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

A position sensor device comprising a magnetic element, a first magnetic field detector for detecting a magnetic field influenced by the magnetic element at a first position, a second magnetic field detector for detecting a magnetic field influenced by the magnetic element at a second position and a position determining unit, the magnetic element is fixable to a movable object, movable along a linear first path, the position determining unit is adapted to determine a position of the magnetic element along the linear first path based on detection signals detected by the first magnetic field detector and the second magnetic field detector, the position determining unit is adapted to determine a position of the magnetic element along a substantially linear second path, said second path being perpendicular to the first path.
PCT/EP2008/055674 2007-05-11 2008-05-08 Device for and method of determining a position of a movable object WO2008138848A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US91746207P 2007-05-11 2007-05-11
EP07009554 2007-05-11
EP07009554.2 2007-05-11
US60/917,462 2007-05-11

Publications (2)

Publication Number Publication Date
WO2008138848A2 WO2008138848A2 (en) 2008-11-20
WO2008138848A3 true WO2008138848A3 (en) 2009-03-05

Family

ID=40002681

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/055674 WO2008138848A2 (en) 2007-05-11 2008-05-08 Device for and method of determining a position of a movable object

Country Status (1)

Country Link
WO (1) WO2008138848A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9250277B1 (en) * 2011-03-21 2016-02-02 Northrop Grumman Systems Corporation Magnetically coupled, high resolution linear position sensor for use in high temperature, high pressure environment
DE102016005945A1 (en) 2016-05-17 2017-11-23 Dürr Systems Ag Coating agent pump
CN107479099A (en) * 2017-09-30 2017-12-15 深圳拓邦股份有限公司 A kind of electromagnetic field detection device, movable equipment and Boundary Recognition system
CN109307586B (en) * 2018-11-02 2020-02-18 长飞光纤光缆股份有限公司 A calibration method of optical fiber preform measuring device
CN113494901B (en) * 2020-03-18 2023-12-05 北京京东振世信息技术有限公司 Object placement direction detection system, method, device and medium
US11846529B2 (en) 2021-04-19 2023-12-19 Joral Llc Magnetic rack and pinion linear magnetic encoder and position sensing system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020190709A1 (en) * 2001-02-28 2002-12-19 Bvr Aero Precision Corporation Methods and apparatus for sensing angular position and speed of a rotatable shaft utilizing linearized annular magnet and commutated ratiometric hall sensors
EP1548408A2 (en) * 2003-12-22 2005-06-29 CTS Corporation Position sensor combining hall effect sensor and switch

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020190709A1 (en) * 2001-02-28 2002-12-19 Bvr Aero Precision Corporation Methods and apparatus for sensing angular position and speed of a rotatable shaft utilizing linearized annular magnet and commutated ratiometric hall sensors
EP1548408A2 (en) * 2003-12-22 2005-06-29 CTS Corporation Position sensor combining hall effect sensor and switch

Also Published As

Publication number Publication date
WO2008138848A2 (en) 2008-11-20

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