CA1125887A - Angle indication device or tachometer - Google Patents

Angle indication device or tachometer

Info

Publication number
CA1125887A
CA1125887A CA288,756A CA288756A CA1125887A CA 1125887 A CA1125887 A CA 1125887A CA 288756 A CA288756 A CA 288756A CA 1125887 A CA1125887 A CA 1125887A
Authority
CA
Canada
Prior art keywords
screen
wheel
lines
periphery
light
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
CA288,756A
Other languages
English (en)
French (fr)
Inventor
Lars A. Bergkvist
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of CA1125887A publication Critical patent/CA1125887A/en
Expired legal-status Critical Current

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
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/486—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by photo-electric detectors
    • 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
    • G01D5/38—Forming the light into pulses by diffraction gratings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
  • Position Input By Displaying (AREA)
  • Color Image Communication Systems (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
CA288,756A 1976-10-15 1977-10-14 Angle indication device or tachometer Expired CA1125887A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7611510A SE402355B (sv) 1976-10-15 1976-10-15 Anordning for indikering av en vinkel eller en vinkelhastighet
SE7611510-4 1976-10-15

Publications (1)

Publication Number Publication Date
CA1125887A true CA1125887A (en) 1982-06-15

Family

ID=20329155

Family Applications (1)

Application Number Title Priority Date Filing Date
CA288,756A Expired CA1125887A (en) 1976-10-15 1977-10-14 Angle indication device or tachometer

Country Status (8)

Country Link
US (1) US4172994A (enExample)
JP (1) JPS5386240A (enExample)
CA (1) CA1125887A (enExample)
DE (1) DE2746369A1 (enExample)
FR (1) FR2368012A1 (enExample)
GB (1) GB1575967A (enExample)
SE (1) SE402355B (enExample)
SU (1) SU1034619A3 (enExample)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2826213B2 (de) * 1978-06-15 1980-06-04 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Photoelektrisches inkrementales Längen- und Winkelmeßsystem
DE3038716C2 (de) * 1980-10-14 1985-12-12 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Positionsmeßeinrichtung
JPS57125851A (en) * 1981-01-29 1982-08-05 Toyota Motor Corp Detector for number of revolutions
AU8550782A (en) * 1981-07-24 1983-01-27 Commonwealth Of Australia, The Roll measuring device
US4802229A (en) * 1983-04-12 1989-01-31 Canon Kabushiki Kaisha Image processing system
JPS6055208A (ja) * 1983-09-06 1985-03-30 Fuji Xerox Co Ltd 移動方向および移動量検出装置
US4667098A (en) * 1985-03-29 1987-05-19 The United States Of America As Represented By The Secretary Of The Army Multi-track optical shaft position and timing cylinder
DE3604238A1 (de) * 1986-02-11 1987-08-13 Thomson Brandt Gmbh Anordnung und schaltung fuer die elektrische kommutierung von erregerspulen
AT396528B (de) * 1988-04-07 1993-10-25 Erhartitsch Karl Neigungsmessgerät
US4965444A (en) * 1988-08-17 1990-10-23 Ransburg Corporation Automatic gain control fiber optica-to-electrical transceiver
CH676901A5 (enExample) * 1988-09-20 1991-03-15 Johnson Electric Sa
US4958071A (en) * 1989-01-13 1990-09-18 Advanced Gravis Computer Technology, Ltd. A joystick including an optical encoder with film strips in sliding contact
WO1991000983A1 (en) * 1989-07-13 1991-01-24 Christopher Mark Baker Safety tilt alarm
AU638730B2 (en) * 1989-07-13 1993-07-08 Christopher Mark Baker Safety tilt alarm
US5323001A (en) * 1989-12-26 1994-06-21 Canon Kabushiki Kaisha Rotary encoder with scale member and interference of zero and first order diffraction beam
JPH05256666A (ja) * 1992-03-13 1993-10-05 Canon Inc ロータリーエンコーダー
US5642297A (en) * 1994-12-12 1997-06-24 Gurley Precision Instruments, Inc. Apparatus and method for measuring the kinematic accuracy in machines and mechanisms using absolute encoders
US6941035B2 (en) * 2001-04-26 2005-09-06 Creo Srl Optical cross-connect switch
US6763160B2 (en) * 2001-04-26 2004-07-13 Creo Srl Optical cross connect switch having improved alignment control system
EP2233892B1 (en) * 2009-03-27 2015-05-27 SICK STEGMANN GmbH Cylindrical Grating Rotation Sensor
RU2495437C2 (ru) * 2011-07-06 2013-10-10 Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Казанский (Приволжский) Федеральный Университет" (ФГАОУ ВПО КФУ) Датчик угловой скорости и угловых перемещений и способ его работы

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2390122A (en) * 1943-03-18 1945-11-27 Associated Patentees Inc Gauge
DE1030044B (de) * 1952-12-10 1958-05-14 Akad Wissenschaften Ddr Anordnung zur Anzeige kleiner Laengs- oder Drehbewegungen mit jeweils zwei zusammenwirkenden Rastern oder Rasterbildern mit geringfuegig verschiedener Gitterkonstante
DE1040268B (de) * 1953-03-14 1958-10-02 Ferranti Ltd Messvorrichtung zum genauen Bestimmen der Groesse und der Richtung der Bewegungen eines Gegenstandes relativ zu einem festen Bezugssystem
US3175093A (en) * 1960-06-25 1965-03-23 Philips Corp Photosensitive device for digital measurement of the displacement of an object
FR1417986A (fr) * 1963-01-19 1965-11-19 Razdow Lobaratories Inc Appareil de mesure des déplacements et des vitesses angulaires et linéaires
DE1220152B (de) * 1963-08-23 1966-06-30 Wenczler & Heidenhain Vorrichtung zum verkantungsfehlerfreien Messen von Laengen
CH466593A (de) * 1967-02-23 1968-12-15 Contraves Ag Optisch-Elektrische-Winkelmesseinrichtung
SE334752B (enExample) * 1969-06-23 1971-05-03 Bolinder Munktell
US3693023A (en) * 1970-12-29 1972-09-19 Dynamics Res Corp Electro-optical tachometer
US3812352A (en) * 1972-08-28 1974-05-21 Itek Corp Encoder readout system

Also Published As

Publication number Publication date
US4172994A (en) 1979-10-30
FR2368012B1 (enExample) 1984-06-15
SE402355B (sv) 1978-06-26
FR2368012A1 (fr) 1978-05-12
JPS5386240A (en) 1978-07-29
JPS6149606B2 (enExample) 1986-10-30
SE7611510L (sv) 1978-04-16
SU1034619A3 (ru) 1983-08-07
GB1575967A (en) 1980-10-01
DE2746369A1 (de) 1978-04-20

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Legal Events

Date Code Title Description
MKEX Expiry