CA1159126A - Dc shift error correction for electro-optical measuring system - Google Patents

Dc shift error correction for electro-optical measuring system

Info

Publication number
CA1159126A
CA1159126A CA000366574A CA366574A CA1159126A CA 1159126 A CA1159126 A CA 1159126A CA 000366574 A CA000366574 A CA 000366574A CA 366574 A CA366574 A CA 366574A CA 1159126 A CA1159126 A CA 1159126A
Authority
CA
Canada
Prior art keywords
signal
amplitude
median
sinusoidal signal
reference voltage
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.)
Expired
Application number
CA000366574A
Other languages
English (en)
French (fr)
Inventor
Stefan Orsen
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.)
Keuffel and Esser Co
Original Assignee
Keuffel and Esser Co
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 Keuffel and Esser Co filed Critical Keuffel and Esser Co
Application granted granted Critical
Publication of CA1159126A publication Critical patent/CA1159126A/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
    • G01D5/244—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 characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/24471—Error correction
    • G01D5/24495—Error correction using previous values
    • 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
    • G01D5/244—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 characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/24471—Error correction
    • G01D5/2448—Correction of gain, threshold, offset or phase control
    • 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
    • G01D5/26—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/36—Forming the light into pulses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
CA000366574A 1979-12-14 1980-12-11 Dc shift error correction for electro-optical measuring system Expired CA1159126A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US103,778 1979-12-14
US06/103,778 US4318617A (en) 1979-12-14 1979-12-14 DC Shift error correction for electro-optical measuring system

Publications (1)

Publication Number Publication Date
CA1159126A true CA1159126A (en) 1983-12-20

Family

ID=22296995

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000366574A Expired CA1159126A (en) 1979-12-14 1980-12-11 Dc shift error correction for electro-optical measuring system

Country Status (7)

Country Link
US (1) US4318617A (enExample)
JP (1) JPS56125612A (enExample)
CA (1) CA1159126A (enExample)
CH (1) CH637764A5 (enExample)
DE (1) DE3046797A1 (enExample)
FR (1) FR2473702A1 (enExample)
IT (1) IT1127947B (enExample)

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DE3409891C2 (de) * 1984-03-17 1986-04-17 Kuhnke, Falko, Dr., 3300 Braunschweig Verfahren zum Interpolieren von ortsperiodischen elektrischen Signalen
US4782327A (en) * 1985-01-02 1988-11-01 Victor B. Kley Computer control
DE3514155A1 (de) * 1985-04-19 1986-10-23 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Verfahren und einrichtung zur regelung des tastverhaeltnisses wenigstens eines elektrischen signals
DE3537752A1 (de) * 1985-10-23 1987-04-23 Flowtec Ag Verfahren zur kompensation von stoerspannungen im elektrodenkreis bei der magnetisch-induktiven durchflussmessung
JPS62162917A (ja) * 1986-01-13 1987-07-18 Hitachi Ltd 位相検出装置
SE452058B (sv) * 1986-02-26 1987-11-09 Lekby Mats Erik Mikrodatorbaserad enhet for korrigering av felaktiga signaler fran en metgivare
JPH0192612A (ja) * 1987-10-05 1989-04-11 Fanuc Ltd 自動オフセット補正機能付エンコーダ
US4862396A (en) * 1987-10-20 1989-08-29 Industrial Microsystems, Inc. Analyzing analog quadrature signals
US5057686A (en) * 1988-10-12 1991-10-15 Mitutoyo Corporation Self-stabilizing photoelectric displacement detector
SE463584B (sv) * 1989-04-20 1990-12-10 Ericsson Telefon Ab L M Saett och anordning foer noggrann digital maetning av tids- eller faslaeget i ett signalpulstaag
JPH0354416A (ja) * 1989-07-21 1991-03-08 Okuma Mach Works Ltd 位置検出装置
JP2515891B2 (ja) * 1989-09-20 1996-07-10 株式会社日立製作所 角度センサ及びトルクセンサ、そのセンサの出力に応じて制御される電動パワ―ステアリング装置
GB2238865B (en) * 1989-12-04 1994-01-26 Mitutoyo Corp Photoelectric displacement detector
DE4017954C1 (enExample) * 1990-06-05 1991-08-29 Pav Praezisions-Apparatebau Ag, Vaduz, Li
JP3067282B2 (ja) * 1991-06-13 2000-07-17 株式会社東海理化電機製作所 移動検出器
US5594667A (en) * 1992-07-10 1997-01-14 Myers; Allen Method and apparatus for baseline drift correction for a sensor
DE4242145A1 (de) * 1992-12-14 1994-06-16 Siemens Ag Vorrichtung zum Ausgleich eines Fehlwinkels zwischen einem cosinus- und einem sinusförmigen, lageabhängigen Meßsignal bei einem Winkelgeber bzw. einem Linearmaßstab
JPH07218288A (ja) * 1994-01-28 1995-08-18 Mitsubishi Electric Corp 絶対位置検出装置及びその誤差補正方法
DE19519677A1 (de) * 1995-05-30 1996-12-05 Telefunken Microelectron Verfahren zur Reduzieruzng der Auswirkung von Drift auf Signal-Nullpegel bei Ansteuerungen von Insassen-Schutzsystemen
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DE19707263B4 (de) * 1997-02-24 2006-03-16 Infineon Technologies Ag Verfahren zum Einstellen von Schaltpunkten bei einem Sensor-Ausgangssignal
DE69822029T2 (de) * 1997-04-28 2004-08-12 Allegro Microsystems, Inc., Worcester Verfahren zur Zentrierung eines Signals innerhalb des dynamischen Bereiches eines spitzendetektierenden Näherungssensors
JP3026949B2 (ja) * 1997-05-12 2000-03-27 ファナック株式会社 エンコーダのオフセット補正回路
DE19844663C2 (de) * 1998-09-29 2000-09-21 Siemens Ag Schaltungsanordnung und Verfahren zum Einstellen von Schaltpunkten eines Entscheiders
DE10049502A1 (de) * 2000-10-06 2002-04-11 Heidenhain Gmbh Dr Johannes Verfahren und Vorrichtung zur absoluten Positionsbestimmung
JP4830209B2 (ja) * 2001-04-24 2011-12-07 株式会社ジェイテクト 最大値・最小値検出方法、最大値・最小値検出装置、その最大値・最小値検出装置を備えたトルク検出装置及び舵取装置
US6600150B1 (en) 2001-07-03 2003-07-29 Lexmark International, Inc. Encoder systems for printers and related methods
US6919727B2 (en) * 2002-09-26 2005-07-19 Texas Instruments Incorporated Accurate time measurement system circuit and method
US7066591B2 (en) * 2004-02-14 2006-06-27 Hewlett-Packard Development Company, L.P. Analog encoder
JP4561160B2 (ja) * 2004-04-16 2010-10-13 株式会社ジェイテクト 回転角検出装置及び電気式動力舵取装置
DE102005039152A1 (de) * 2005-08-17 2007-02-22 Robert Bosch Gmbh Mechanische Trägereinrichtung sowie Messgerät mit einer mechanischen Trägereinrichtung
EP2746732B2 (de) † 2012-12-18 2018-03-07 Sick Ag Gebervorrichtung und Verfahren zur Bestimmung einer Position
DE102013113870A1 (de) * 2013-12-11 2015-06-11 Ic-Haus Gmbh Verfahren und Vorrichtung zur Aufbereitung eines periodischen Messsignals
US10913550B2 (en) 2018-03-23 2021-02-09 The Boeing Company System and method for position and speed feedback control
US10830591B2 (en) 2018-03-23 2020-11-10 The Boeing Company System and method for dual speed resolver
US10911061B2 (en) * 2018-03-23 2021-02-02 The Boeing Company System and method for demodulation of resolver outputs
CN109974832B (zh) * 2019-04-03 2021-04-02 浙江华章科技有限公司 一种高速摇振系统振幅的算法

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Also Published As

Publication number Publication date
CH637764A5 (fr) 1983-08-15
US4318617A (en) 1982-03-09
FR2473702A1 (fr) 1981-07-17
IT1127947B (it) 1986-05-28
IT8050344A0 (it) 1980-12-11
FR2473702B1 (enExample) 1984-06-29
JPS56125612A (en) 1981-10-02
DE3046797A1 (de) 1981-09-03

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