FR2635873B1 - Procede et appareil de mesure de la rotation d'un corps - Google Patents

Procede et appareil de mesure de la rotation d'un corps

Info

Publication number
FR2635873B1
FR2635873B1 FR8911187A FR8911187A FR2635873B1 FR 2635873 B1 FR2635873 B1 FR 2635873B1 FR 8911187 A FR8911187 A FR 8911187A FR 8911187 A FR8911187 A FR 8911187A FR 2635873 B1 FR2635873 B1 FR 2635873B1
Authority
FR
France
Prior art keywords
measuring
rotation
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 - Fee Related
Application number
FR8911187A
Other languages
English (en)
Other versions
FR2635873A1 (fr
Inventor
Kobayashi Hiroshi
Machida Haruhiko
Akedo Jun
Funato Hiroyoshi
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of FR2635873A1 publication Critical patent/FR2635873A1/fr
Application granted granted Critical
Publication of FR2635873B1 publication Critical patent/FR2635873B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
    • G01P3/366—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light by using diffraction of light
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1861—Reflection gratings characterised by their structure, e.g. step profile, contours of substrate or grooves, pitch variations, materials
FR8911187A 1988-08-24 1989-08-23 Procede et appareil de mesure de la rotation d'un corps Expired - Fee Related FR2635873B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63210127A JP2709088B2 (ja) 1988-08-24 1988-08-24 回転量測定方法

Publications (2)

Publication Number Publication Date
FR2635873A1 FR2635873A1 (fr) 1990-03-02
FR2635873B1 true FR2635873B1 (fr) 1993-11-19

Family

ID=16584238

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8911187A Expired - Fee Related FR2635873B1 (fr) 1988-08-24 1989-08-23 Procede et appareil de mesure de la rotation d'un corps

Country Status (5)

Country Link
US (1) US4987299A (fr)
JP (1) JP2709088B2 (fr)
DE (1) DE3927846C2 (fr)
FR (1) FR2635873B1 (fr)
GB (1) GB2224116B (fr)

Families Citing this family (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2239088B (en) * 1989-11-24 1994-05-25 Ricoh Kk Optical movement measuring method and apparatus
US5148019A (en) * 1989-12-22 1992-09-15 Ricoh Company Ltd. Moving amount detecting method using a shadow picture diffraction interference pattern
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
US5118932A (en) * 1990-11-13 1992-06-02 Hughes Aircraft Company Shaft rotation rate sensor with a diffraction grating producing a velocity-related beat frequency
JPH0518711A (ja) * 1991-07-16 1993-01-26 Mitsubishi Electric Corp 位置検出方法及びその装置
US5471054A (en) * 1991-09-30 1995-11-28 Nf. T&M. Systems, Inc. Encoder for providing calibrated measurement capability of rotation or linear movement of an object, label medium and an optical identification system
US5214278A (en) * 1991-11-01 1993-05-25 Combustion Engineering, Inc. Apparatus for monitoring speed and lateral position of a rotating shaft having reflective surfaces
JPH05256666A (ja) * 1992-03-13 1993-10-05 Canon Inc ロータリーエンコーダー
US5388048A (en) * 1993-02-16 1995-02-07 Silicon Heights Limited Vehicle anti-collison device
EP0628791B1 (fr) * 1993-06-10 1999-09-08 Canon Kabushiki Kaisha Appareil et grille pour détecter des rotations
JP2810320B2 (ja) * 1994-04-18 1998-10-15 住友ゴム工業株式会社 球体の回転量測定装置及び測定方法
US5546201A (en) * 1994-12-20 1996-08-13 Xerox Corporation Double bounce passive facet tracking with a reflective diffraction grating on a flat facet
US5821531A (en) * 1996-01-26 1998-10-13 Asahi Kogaku Kogyo Kabushiki Kaisha Dual sensor encoder for detecting forward/reverse rotation having light modulating patterns with a predetermined phase different
US5748111A (en) * 1996-03-29 1998-05-05 Caterpillar Inc. Apparatus for monitoring the speed and axial position of a rotating member
DE19637625A1 (de) * 1996-09-16 1998-03-26 Bosch Gmbh Robert Motor oder Generator mit zwei relativ zueinander beweglich gelagerten Teilen und einer Vorrichtung zum interferometrischen Messen eines Weges oder Drehwinkels
GB9810864D0 (en) * 1998-05-20 1998-07-22 Westwind Air Bearings Ltd Rotary shaft speed control
WO2001022038A1 (fr) * 1999-09-21 2001-03-29 Delphi Technologies, Inc. Codeur optique a haute resolution
EP1089059B1 (fr) * 1999-09-28 2007-09-26 Snap-On Equipment GmbH Machine d'équilibrage de roue pour une roue de véhicule avec codeur angulaire compact
SE9904661D0 (sv) * 1999-12-20 1999-12-20 Erik Andersson Vinkelmätare
DE20104130U1 (de) * 2001-03-09 2002-07-18 Maxon Motor Ag Sachseln Elektrokleinstmotor
US20050044819A1 (en) 2003-09-02 2005-03-03 Chomik Richard S. Waste storage device
US7881896B2 (en) 2002-02-14 2011-02-01 Faro Technologies, Inc. Portable coordinate measurement machine with integrated line laser scanner
NZ518290A (en) * 2002-04-10 2005-02-25 Fisher & Paykel Appliances Ltd A laundry appliance
JP2005011478A (ja) * 2003-04-24 2005-01-13 Ricoh Co Ltd 回折格子とその作製方法及び複製方法並びにその回折格子を用いた光ヘッド装置及び光ディスクドライブ装置
US7265336B2 (en) 2003-12-01 2007-09-04 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Encoder utilizing a reflective cylindrical surface
US7135673B2 (en) * 2004-10-29 2006-11-14 The Boeing Company Imaging rotation angle absolute encoder
US7615737B2 (en) * 2007-05-08 2009-11-10 The Boeing Company High precision compact rotation angle absolute encoder
US7546689B2 (en) * 2007-07-09 2009-06-16 Hexagon Metrology Ab Joint for coordinate measurement device
JP5472986B2 (ja) * 2009-12-29 2014-04-16 株式会社リガク 測角器、測角器の製造方法及びｘ線分析装置
CN102243081A (zh) * 2010-05-10 2011-11-16 上海宏曲电子科技有限公司 激光角位传感器
WO2012134482A1 (fr) 2011-03-31 2012-10-04 Otis Elevator Company Dispositif de détection à base optique
US8537377B2 (en) 2011-04-27 2013-09-17 Raytheon Company Absolute position encoder
US9542016B2 (en) 2012-09-13 2017-01-10 Apple Inc. Optical sensing mechanisms for input devices
JP6048189B2 (ja) 2013-02-08 2016-12-21 株式会社リコー 投影システム、画像生成プログラム、情報処理装置及び画像生成方法
US9753436B2 (en) 2013-06-11 2017-09-05 Apple Inc. Rotary input mechanism for an electronic device
CN105556433B (zh) 2013-08-09 2019-01-15 苹果公司 用于电子设备的触觉开关
WO2015122885A1 (fr) 2014-02-12 2015-08-20 Bodhi Technology Ventures Llc Rejet de mauvaises rotations d'entrées rotatives de dispositifs électroniques
US9797752B1 (en) 2014-07-16 2017-10-24 Apple Inc. Optical encoder with axially aligned sensor
US10190891B1 (en) 2014-07-16 2019-01-29 Apple Inc. Optical encoder for detecting rotational and axial movement
US10066970B2 (en) 2014-08-27 2018-09-04 Apple Inc. Dynamic range control for optical encoders
CN205121417U (zh) 2014-09-02 2016-03-30 苹果公司 可穿戴电子设备
US10145711B2 (en) 2015-03-05 2018-12-04 Apple Inc. Optical encoder with direction-dependent optical properties having an optically anisotropic region to produce a first and a second light distribution
JP6479997B2 (ja) 2015-03-08 2019-03-06 アップル インコーポレイテッドＡｐｐｌｅ Ｉｎｃ． 回転可能かつ並進可能な入力機構のための圧縮可能な封止
US9952682B2 (en) 2015-04-15 2018-04-24 Apple Inc. Depressible keys with decoupled electrical and mechanical functionality
US10018966B2 (en) 2015-04-24 2018-07-10 Apple Inc. Cover member for an input mechanism of an electronic device
US9891651B2 (en) 2016-02-27 2018-02-13 Apple Inc. Rotatable input mechanism having adjustable output
US10551798B1 (en) 2016-05-17 2020-02-04 Apple Inc. Rotatable crown for an electronic device
US10061399B2 (en) 2016-07-15 2018-08-28 Apple Inc. Capacitive gap sensor ring for an input device
US10019097B2 (en) 2016-07-25 2018-07-10 Apple Inc. Force-detecting input structure
JP6658647B2 (ja) * 2017-03-28 2020-03-04 京セラドキュメントソリューションズ株式会社 給紙装置及び画像形成装置
US10664074B2 (en) 2017-06-19 2020-05-26 Apple Inc. Contact-sensitive crown for an electronic watch
US10962935B1 (en) 2017-07-18 2021-03-30 Apple Inc. Tri-axis force sensor
US11360440B2 (en) 2018-06-25 2022-06-14 Apple Inc. Crown for an electronic watch
US11561515B2 (en) 2018-08-02 2023-01-24 Apple Inc. Crown for an electronic watch
US11181863B2 (en) 2018-08-24 2021-11-23 Apple Inc. Conductive cap for watch crown
CN211293787U (zh) 2018-08-24 2020-08-18 苹果公司 电子表
US11194298B2 (en) 2018-08-30 2021-12-07 Apple Inc. Crown assembly for an electronic watch
CN209625187U (zh) 2018-08-30 2019-11-12 苹果公司 电子手表和电子设备
US11194299B1 (en) 2019-02-12 2021-12-07 Apple Inc. Variable frictional feedback device for a digital crown of an electronic watch
US11550268B2 (en) 2020-06-02 2023-01-10 Apple Inc. Switch module for electronic crown assembly

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3419330A (en) * 1965-04-06 1968-12-31 Sperry Rand Corp Diffraction grating angular rate sensor
GB1169698A (en) * 1965-12-02 1969-11-05 Nat Res Dev Improvements in or relating to Positional Displacement Transducer Arrangements
US3627069A (en) * 1970-06-12 1971-12-14 Applied Information Ind Weigher with optical detector
DE2316248A1 (de) * 1973-03-31 1974-10-10 Leitz Ernst Gmbh Fotoelektrischer schrittgeber
US4201911A (en) * 1978-03-15 1980-05-06 Richard M. Glueck Shaft angle digitizer
DE2933557C2 (de) * 1979-08-18 1982-11-04 Robert Bosch Gmbh, 7000 Stuttgart Meßumformer zur berührungslosen Weg- oder Geschwindigkeitsmessung
JPS5734457A (en) * 1980-08-08 1982-02-24 Nec Corp Rotation measuring apparatus
DE3103485C2 (de) * 1981-02-03 1986-01-23 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Digitale elektrische Längen- oder Winkelmeßeinrichtung
JPS5964501U (ja) * 1982-10-21 1984-04-28 株式会社井上ジャパックス研究所 光学スケ−ル
JPS6089712A (ja) * 1983-10-21 1985-05-20 Alps Electric Co Ltd 光学式エンコ−ダ
DD225796A1 (de) * 1984-05-18 1985-08-07 Freiberg Bergakademie Verfahren zur drehzahlmessung
US4634861A (en) * 1984-12-19 1987-01-06 General Instrument Corporation Rotary switch with reflector coded actuator drum
JPS61228309A (ja) * 1985-04-02 1986-10-11 Dainippon Screen Mfg Co Ltd 位置検出方法
DE3528053A1 (de) * 1985-08-05 1987-02-05 Karl Kessler Drehwinkelmesseinrichtung
JPS6296817A (ja) * 1985-10-23 1987-05-06 Nec Corp 高精度、高分解能角度検出方式
JPS6347616A (ja) * 1986-08-15 1988-02-29 Ricoh Co Ltd 移動量測定方法
US4874941A (en) * 1988-05-11 1989-10-17 Simmonds Precision Products, Inc. Optical displacement sensor with a multi-period grating
JP3408581B2 (ja) * 1993-06-10 2003-05-19 康博 小池 光拡散体

Also Published As

Publication number Publication date
GB2224116B (en) 1992-10-14
DE3927846A1 (de) 1990-03-01
JPH0257913A (ja) 1990-02-27
GB8919228D0 (en) 1989-10-04
JP2709088B2 (ja) 1998-02-04
US4987299A (en) 1991-01-22
DE3927846C2 (de) 1995-04-20
GB2224116A (en) 1990-04-25
FR2635873A1 (fr) 1990-03-02

Similar Documents

Publication Publication Date Title
FR2635873B1 (fr) Procede et appareil de mesure de la rotation d'un corps
FR2558367B1 (fr) Procede et appareil d'etalonnage d'un accessoire de biopsie dans un appareil d'echographie
FR2534015B1 (fr) Procede et appareil de mesure de l'epaisseur d'un revetement de zirconium sur un tube en alliage de zirconium
FR2632086B1 (fr) Appareil et procede d'affichage
FR2670302B1 (fr) Appareil de mesure de la contamination radioactive d'un corps.
FR2532427B1 (fr) Procede et dispositif pour la mesure de l'encrassement d'un detecteur capacitif de point de rosee
FR2586925B1 (fr) Procede et appareil de mesure du volume ventriculaire
GB2179734B (en) Foot measuring apparatus and method
FR2658286B1 (fr) Appareil de determination de la configuration d'un corps monte rotatif sur un arbre et procede associe.
FR2617600B1 (fr) Dispositif et methode de mesure des deformations d'un echantillon
FR2648236B1 (fr) Appareil de mesure d'impedance surfacique
FR2619213B1 (fr) Appareil de mesure des caracteristiques massiques d'un corps et son application a la mesure des caracteristiques d'un satellite a sec.
FR2538903B1 (fr) Appareil de mesure de l'amplitude et de la position angulaire d'un balourd d'un systeme tournant
FR2587191B1 (fr) Procede et dispositif de mesure de la direction du regard
FR2690737B1 (fr) Procédé et appareil de mesure tridimensionnelle d'une surface.
FR2583169B1 (fr) Procede et appareil de mesure de capacite
FR2622008B1 (fr) Jauges de contrainte a fluage reglable et procede d'obtention de telles jauges
FR2591519B1 (fr) Procede et appareil pour la fixation precise d'un element de carrosserie
FR2617589B1 (fr) Dispositif et methode de mesure des deformations d'un echantillon
FR2626361B1 (fr) Procede et appareil de mesure de la rugosite d'une surface d'une piece
GB2172461B (en) Method and apparatus for measuring the range and/or radial velocity of a movingtarget
DE3663854D1 (en) Method of and apparatus for optically measuring displacement
FR2636436B1 (fr) Procede et dispositif de mesure de subsidence
EP0219127A3 (en) Method of and apparatus for optically measuring displacement
FR2663419B1 (fr) Procede et appareil de mesure de l'erreur cinematique d'un couple d'engrenages.

Legal Events

Date Code Title Description
ST Notification of lapse