JPH0337519A - Method and apparatus for detecting position - Google Patents

Method and apparatus for detecting position

Info

Publication number
JPH0337519A
JPH0337519A JP17261089A JP17261089A JPH0337519A JP H0337519 A JPH0337519 A JP H0337519A JP 17261089 A JP17261089 A JP 17261089A JP 17261089 A JP17261089 A JP 17261089A JP H0337519 A JPH0337519 A JP H0337519A
Authority
JP
Japan
Prior art keywords
21f
output signals
elements 21a
elements
phase
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.)
Pending
Application number
JP17261089A
Inventor
Shinichi Konakano
Joji Nakamura
Kouichi Yamanoue
Minoru Yokota
Original Assignee
Nippon Soken Inc
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 Nippon Soken Inc filed Critical Nippon Soken Inc
Priority to JP17261089A priority Critical patent/JPH0337519A/en
Publication of JPH0337519A publication Critical patent/JPH0337519A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING 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
    • G01D5/00Mechanical 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
    • G01D5/12Mechanical 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
    • G01D5/14Mechanical 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
    • G01D5/142Mechanical 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
    • G01D5/145Mechanical 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
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING 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
    • G01D5/00Mechanical 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
    • G01D5/12Mechanical 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
    • G01D5/244Mechanical 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 characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/24428Error prevention
    • G01D5/24452Calibration
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING 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
    • G01D5/00Mechanical 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
    • G01D5/12Mechanical 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
    • G01D5/244Mechanical 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 characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/24471Error correction
    • G01D5/2448Correction of gain, threshold, offset or phase control
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING 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
    • G01D5/00Mechanical 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
    • G01D5/12Mechanical 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
    • G01D5/244Mechanical 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 characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/24471Error correction
    • G01D5/2449Error correction using hard-stored calibration data
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42Devices characterised by the use of electric or magnetic means
    • G01P3/44Devices characterised by the use of electric or magnetic means for measuring angular speed

Abstract

PURPOSE: To obtain two-phase sine waves whose accuracy is positively improved and to enhance the accuracy in detecting the position of a moving body by directly taking fundamental wave components out of electric signals outputted from a plurality of detecting elements.
CONSTITUTION: A constant voltage power source is supplied from the outside through a wiring harness 109, and a rotor 103 is rotated together with a rotary shaft 102. Then, six-phase wave signals are outputted from Hall elements 21a - 21f. When the intervals between the rotor 103 and the elements 21a - 21f are sufficiently far, the waveforms from the elements 21f - 21f become multi phase sine waves whose phases are shifted by 60 degrees. The output signals from the elements 21a - 21f undergo operations in weighting and adding circuits and subtracting circuits. The output signals from the elements 21a - 21f are multiplied by the sine coefficients and the cosine coefficients based on the phase differences of the respective output signals, and the results are added. Thus, the fundamental wave components of the output signals from the elements 21a - 21f are taken out.
COPYRIGHT: (C)1991,JPO&Japio
JP17261089A 1989-07-03 1989-07-03 Method and apparatus for detecting position Pending JPH0337519A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17261089A JPH0337519A (en) 1989-07-03 1989-07-03 Method and apparatus for detecting position

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP17261089A JPH0337519A (en) 1989-07-03 1989-07-03 Method and apparatus for detecting position
DE19904021105 DE4021105A1 (en) 1989-07-03 1990-07-02 Measuring position of movable body - using two sinusoidal signals with phase difference of 90 deg. derived from measuring elements

Publications (1)

Publication Number Publication Date
JPH0337519A true JPH0337519A (en) 1991-02-18

Family

ID=15945065

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17261089A Pending JPH0337519A (en) 1989-07-03 1989-07-03 Method and apparatus for detecting position

Country Status (2)

Country Link
JP (1) JPH0337519A (en)
DE (1) DE4021105A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2717575A1 (en) * 1994-03-17 1995-09-22 Simonny Roger Liquid level measuring device
WO2006051590A1 (en) * 2004-11-11 2006-05-18 Hitachi, Ltd. Rotation detection device
JP2007143226A (en) * 2005-11-15 2007-06-07 Nippon Pulse Motor Co Ltd Position detector of shaft type linear motor
JP2010529456A (en) * 2007-06-06 2010-08-26 ハイドロ エアー インコーポレイテッド Angular position sensor

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4121724A1 (en) * 1991-07-01 1993-01-07 Schaeffler Waelzlager Kg Pulse transducer mfr. method - producing alternating regions of different magnetic properties on component by structural heat treatment
JP3347766B2 (en) * 1992-06-08 2002-11-20 日本トムソン株式会社 Linear encoder and guide unit having the same
DE4333465A1 (en) * 1993-09-30 1995-04-06 Thomson Brandt Gmbh Control circuit having a number of sensors
DE19734303B4 (en) * 1997-08-08 2005-09-22 Siemens Ag magnetic wheel
JP3820548B2 (en) 2001-06-01 2006-09-13 オムロン株式会社 Information input device and electronic device using the same
DE102008060840A1 (en) * 2008-12-05 2010-06-10 Robert Bosch Gmbh Method for producing feedback signal of synchronous motor, involves adapting sinusoidal signal to zeros by Fourier transform, and producing feedback signal from sinusoidal signal
DE102014223884A1 (en) 2014-11-24 2016-05-25 Micro-Epsilon Messtechnik Gmbh & Co. Kg Sensor arrangement and method for determining a position and / or a position change of a measurement object
EP3382329A4 (en) * 2015-11-26 2018-11-14 Mitsubishi Electric Corporation Angle detection device and electric power steering device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2717575A1 (en) * 1994-03-17 1995-09-22 Simonny Roger Liquid level measuring device
WO2006051590A1 (en) * 2004-11-11 2006-05-18 Hitachi, Ltd. Rotation detection device
JPWO2006051590A1 (en) * 2004-11-11 2008-05-29 株式会社日立製作所 Rotation detector
JP2007143226A (en) * 2005-11-15 2007-06-07 Nippon Pulse Motor Co Ltd Position detector of shaft type linear motor
JP2010529456A (en) * 2007-06-06 2010-08-26 ハイドロ エアー インコーポレイテッド Angular position sensor

Also Published As

Publication number Publication date
DE4021105A1 (en) 1991-02-07

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