GB1257523A - - Google Patents

Info

Publication number
GB1257523A
GB1257523A GB1257523DA GB1257523A GB 1257523 A GB1257523 A GB 1257523A GB 1257523D A GB1257523D A GB 1257523DA GB 1257523 A GB1257523 A GB 1257523A
Authority
GB
United Kingdom
Prior art keywords
angle
feb
slit
photo
determining
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
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 filed Critical
Publication of GB1257523A publication Critical patent/GB1257523A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
    • G01S3/782—Systems for determining direction or deviation from predetermined direction
    • G01S3/783—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from static detectors or detector systems
    • G01S3/7835—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from static detectors or detector systems using coding masks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • B64G1/24—Guiding or controlling apparatus, e.g. for attitude control
    • B64G1/244—Spacecraft control systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • B64G1/24—Guiding or controlling apparatus, e.g. for attitude control
    • B64G1/28—Guiding or controlling apparatus, e.g. for attitude control using inertia or gyro effect
    • B64G1/281—Spin-stabilised spacecraft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • B64G1/24—Guiding or controlling apparatus, e.g. for attitude control
    • B64G1/36—Guiding or controlling apparatus, e.g. for attitude control using sensors, e.g. sun-sensors, horizon sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G3/00—Observing or tracking cosmonautic vehicles
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • B64G1/24—Guiding or controlling apparatus, e.g. for attitude control
    • B64G1/36—Guiding or controlling apparatus, e.g. for attitude control using sensors, e.g. sun-sensors, horizon sensors
    • B64G1/361—Guiding or controlling apparatus, e.g. for attitude control using sensors, e.g. sun-sensors, horizon sensors using star sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • B64G1/24—Guiding or controlling apparatus, e.g. for attitude control
    • B64G1/36—Guiding or controlling apparatus, e.g. for attitude control using sensors, e.g. sun-sensors, horizon sensors
    • B64G1/363—Guiding or controlling apparatus, e.g. for attitude control using sensors, e.g. sun-sensors, horizon sensors using sun sensors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/22—Analogue/digital converters pattern-reading type

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Electromagnetism (AREA)
  • Astronomy & Astrophysics (AREA)
  • Theoretical Computer Science (AREA)
  • Optical Transform (AREA)
  • Optical Communication System (AREA)

Abstract

1,257,523. Determining position. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 4 Feb., 1969 [5 Feb., 1968], No. 5831/69. Heading G4H. Apparatus for determining the position of a rotation stabilized satellite relative to a heavenly body S (Fig. 3) includes a cylindrical lens L between a slit F in a diaphragm for transmitting light from the heavenly body S and a binary coded plate C comprising a mask with transparent and opaque portions. Behind the plate are photo-cells comprising a laminated strip of material exhibiting the Faraday effect, polarizing material and photo-sensitive material so that digital signals representing tan # where # is the angle between the sun and the satellite are obtained. The slit has a central interruption so that read-out pulses having sharp leading and trailing edges are obtained. The angle may be measured twice per revolution when the azimuth angle is 0 or #.
GB1257523D 1968-02-05 1969-02-04 Expired GB1257523A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR138668 1968-02-05

Publications (1)

Publication Number Publication Date
GB1257523A true GB1257523A (en) 1971-12-22

Family

ID=8645550

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1257523D Expired GB1257523A (en) 1968-02-05 1969-02-04

Country Status (3)

Country Link
FR (1) FR1564627A (en)
GB (1) GB1257523A (en)
NL (1) NL6901656A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2197146A (en) * 1986-11-04 1988-05-11 Canon Kk Optically detecting position of object
GB2249678A (en) * 1990-10-20 1992-05-13 Nat Res Dev Position measurement

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4806747A (en) * 1988-02-19 1989-02-21 The Perkin-Elmer Corporation Optical direction of arrival sensor with cylindrical lens

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2197146A (en) * 1986-11-04 1988-05-11 Canon Kk Optically detecting position of object
GB2197146B (en) * 1986-11-04 1991-05-29 Canon Kk An encoder for detecting the displacement of an object to be measured
US5129725A (en) * 1986-11-04 1992-07-14 Canon Kabushiki Kaisha Method of optically detecting position of object and position detecting apparatus using the method
GB2249678A (en) * 1990-10-20 1992-05-13 Nat Res Dev Position measurement
US5408323A (en) * 1990-10-20 1995-04-18 British Technology Group, Ltd. Position fixing apparatus with radiation sensor
GB2249678B (en) * 1990-10-20 1995-05-17 Nat Res Dev Position fixing

Also Published As

Publication number Publication date
DE1905042B2 (en) 1976-10-07
FR1564627A (en) 1969-04-25
DE1905042A1 (en) 1969-08-28
NL6901656A (en) 1969-08-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee