GB825009A - Course indicating apparatus - Google Patents

Course indicating apparatus

Info

Publication number
GB825009A
GB825009A GB537656A GB537656A GB825009A GB 825009 A GB825009 A GB 825009A GB 537656 A GB537656 A GB 537656A GB 537656 A GB537656 A GB 537656A GB 825009 A GB825009 A GB 825009A
Authority
GB
United Kingdom
Prior art keywords
representing
craft
produce
shaft
signal
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
GB537656A
Inventor
Albert Ernest Cutler
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.)
Communications Patents Ltd
Original Assignee
Communications Patents 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 Communications Patents Ltd filed Critical Communications Patents Ltd
Priority to GB537656A priority Critical patent/GB825009A/en
Publication of GB825009A publication Critical patent/GB825009A/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
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Adjustable Resistors (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

825,009. Course recording apparatus. COMMUNICATIONS PATENTS Ltd. Feb. 21, 1956, No. 5376/56. Class 97(2) [Also in Group XXXVI] Apparatus for deriving polar co-ordinate data of a craft with respect to a reference. point comprises means to produce, in response to signals representing speed and compass heading, a first electrical signal representing the velocity of the craft directed along a radius vector from the reference point to the craft and a second signal representing the velocity of the craft in a direction at right angles to the radius vector, means to integrate the first signal to produce a further signal representing the range from the reference point and means to integrate the second signal divided by the range signal to produce a signal representing the bearing of the craft with respect to the reference point. In the apparatus shown # is the compass heading of the craft as received on a shaft 9 from the compass. # is the bearing, i.e. the angular polar co-ordinate, derived in a manner to be described and fed to a shaft 10. A differential 8 produces a rotation of the shaft 11 representing #-# which is used to rotate a potentiometer 7 fed with a voltage from an amplifier 6 energized by a signal representing the velocity V T of the craft. The potentiometer produces voltages VTCos(#-#) and V T Sin(#-#) representing components of the velocity along and perpendicular, respectively, to the line joining the craft to the co-ordinate origin. The radial component is fed to the velodyne integrator 15 to produce a rotation of the shaft 16 representing range. This rotates a potentiometer 18 and a leadscrew 5 which moves a nut 3 radially over a chart 4. The voltage representing the tangential component is applied to the potentiometer 18 which is arranged to produce an output proportional to the product of the component and the reciprocal of range. This represents the rate of change of bearing which is integrated in the velodyne integrator 20 to produce a rotation of the shaft 21 representing the bearing #.This rotation is fed to the differential 8 and to the chart 4.
GB537656A 1956-02-21 1956-02-21 Course indicating apparatus Expired GB825009A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB537656A GB825009A (en) 1956-02-21 1956-02-21 Course indicating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB537656A GB825009A (en) 1956-02-21 1956-02-21 Course indicating apparatus

Publications (1)

Publication Number Publication Date
GB825009A true GB825009A (en) 1959-12-09

Family

ID=9794968

Family Applications (1)

Application Number Title Priority Date Filing Date
GB537656A Expired GB825009A (en) 1956-02-21 1956-02-21 Course indicating apparatus

Country Status (1)

Country Link
GB (1) GB825009A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3096503A (en) * 1960-01-25 1963-07-02 Sperry Rand Corp Aircraft navigation system
GB2163258A (en) * 1984-08-17 1986-02-19 Michael Bryan Dead reckoning log for ships

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3096503A (en) * 1960-01-25 1963-07-02 Sperry Rand Corp Aircraft navigation system
GB2163258A (en) * 1984-08-17 1986-02-19 Michael Bryan Dead reckoning log for ships

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