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FR1227522A - Dispositif détecteur des écarts de la parallaxe - Google Patents

Dispositif détecteur des écarts de la parallaxe

Info

Publication number
FR1227522A
FR1227522A FR792981A FR792981A FR1227522A FR 1227522 A FR1227522 A FR 1227522A FR 792981 A FR792981 A FR 792981A FR 792981 A FR792981 A FR 792981A FR 1227522 A FR1227522 A FR 1227522A
Authority
FR
France
Prior art keywords
detector device
deviation detector
parallax deviation
parallax
deviation
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
FR792981A
Other languages
English (en)
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.)
Recon Optical Inc
Original Assignee
Chicago Aerial Industries 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 Chicago Aerial Industries Inc filed Critical Chicago Aerial Industries Inc
Application granted granted Critical
Publication of FR1227522A publication Critical patent/FR1227522A/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/008—Rotors tracking or balancing devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C3/00—Measuring distances in line of sight; Optical rangefinders
    • G01C3/02—Details
    • G01C3/06—Use of electric means to obtain final indication
    • G01C3/08—Use of electric radiation detectors
    • G01C3/085—Use of electric radiation detectors with electronic parallax measurement
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
FR792981A 1958-04-23 1959-04-23 Dispositif détecteur des écarts de la parallaxe Expired FR1227522A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US730480A US3002420A (en) 1958-04-23 1958-04-23 Parallax interval sensing device

Publications (1)

Publication Number Publication Date
FR1227522A true FR1227522A (fr) 1960-08-22

Family

ID=24935532

Family Applications (1)

Application Number Title Priority Date Filing Date
FR792981A Expired FR1227522A (fr) 1958-04-23 1959-04-23 Dispositif détecteur des écarts de la parallaxe

Country Status (3)

Country Link
US (1) US3002420A (fr)
FR (1) FR1227522A (fr)
GB (1) GB923232A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2499712A1 (fr) * 1981-02-10 1982-08-13 France Etat Dispositif opto-electronique pour mesurer et regler les ecarts de sillage des pales d'helicoptere

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH446734A (de) * 1965-11-05 1967-11-15 Emhart Zuerich Sa Verfahren und Einrichtung zur Prüfung einer Kantenlinie eines Körpers
US3515485A (en) * 1966-12-29 1970-06-02 Boeing Co Blade tracking system
US3514620A (en) * 1967-12-15 1970-05-26 Chicago Aerial Ind Inc Expandable electro-optical height sensor
US3524354A (en) * 1967-12-19 1970-08-18 Boeing Co Tracking system for moving objects
US3856410A (en) * 1972-11-27 1974-12-24 Tracker M Corp Method and apparatus for testing bladed rotors
US4049349A (en) * 1976-06-30 1977-09-20 Wennerstrom Arthur J Device for measuring rotor tip clearance in operating turbomachinery
JPS5931814B2 (ja) * 1978-06-19 1984-08-04 オムロン株式会社 反射形光電スイッチ
JPS55108130A (en) * 1979-02-13 1980-08-19 Omron Tateisi Electronics Co Reflection type photoelectric switch
EP0208399B1 (fr) * 1985-05-16 1989-03-01 Stewart Hughes Limited Système de détection d'un mouvement
GB2286666A (en) * 1994-02-11 1995-08-23 Stewart Hughes Ltd An optical tracker system
US9599711B2 (en) 2014-07-15 2017-03-21 Honeywell International Inc. Active blade tracker and related systems and methods
US20170267338A1 (en) * 2014-10-01 2017-09-21 Sikorsky Aircraft Corporation Acoustic signature variation of aircraft utilizing a clutch
US10822076B2 (en) 2014-10-01 2020-11-03 Sikorsky Aircraft Corporation Dual rotor, rotary wing aircraft
CN106767651B (zh) * 2016-11-29 2019-05-31 中国直升机设计研究所 一种直升机桨叶安装角的测量方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1877713A (en) * 1929-12-26 1932-09-13 Claude Neon Lights Inc Motion study
DE741367C (de) * 1937-07-23 1943-11-10 Aeg Verfahren und Vorrichtung zum qualitativen Bestimmen von Kraeften, die an einer Luftschraube infolge von Unsymmetrien der Luftschraube durch die Rueckwirkung des von derSchraube gefoerderten Luftstromes entstehen
US2444235A (en) * 1944-12-04 1948-06-29 Joseph B Walker Photoelectric range finder
US2455053A (en) * 1945-03-09 1948-11-30 Bausch & Lomb Optical method and apparatus for checking propeller blades
US2490899A (en) * 1946-06-17 1949-12-13 United Shoe Machinery Corp Apparatus for determining the phase relation of sinusoidal electric signals
US2653309A (en) * 1950-03-09 1953-09-22 Gen Electric Object detection
US2769492A (en) * 1952-07-21 1956-11-06 North American Aviation Inc Velocity meter
US2770798A (en) * 1953-11-24 1956-11-13 Ibm Methods and apparatus for measuring angular movement
US2830487A (en) * 1955-05-31 1958-04-15 Louis E Griffith Automatic range finding device
US2820182A (en) * 1955-09-28 1958-01-14 Charles F Martin Photosensitive relay control circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2499712A1 (fr) * 1981-02-10 1982-08-13 France Etat Dispositif opto-electronique pour mesurer et regler les ecarts de sillage des pales d'helicoptere

Also Published As

Publication number Publication date
US3002420A (en) 1961-10-03
GB923232A (en) 1963-04-10

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