SE390572B - Elektromagnetisk avstandsmetapparat - Google Patents

Elektromagnetisk avstandsmetapparat

Info

Publication number
SE390572B
SE390572B SE7307665*A SE7307665A SE390572B SE 390572 B SE390572 B SE 390572B SE 7307665 A SE7307665 A SE 7307665A SE 390572 B SE390572 B SE 390572B
Authority
SE
Sweden
Prior art keywords
distance meter
electromagnetic distance
electromagnetic
meter
distance
Prior art date
Application number
SE7307665*A
Other languages
English (en)
Inventor
P J Cabion
Original Assignee
South African Inventions
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 South African Inventions filed Critical South African Inventions
Publication of SE390572B publication Critical patent/SE390572B/sv

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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S13/36—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated with phase comparison between the received signal and the contemporaneously transmitted signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Measurement Of Distances Traversed On The Ground (AREA)
  • Measuring Phase Differences (AREA)
SE7307665*A 1972-05-29 1973-05-29 Elektromagnetisk avstandsmetapparat SE390572B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA723648A ZA723648B (en) 1972-05-29 1972-05-29 Electronic means for resolving vernier measurements

Publications (1)

Publication Number Publication Date
SE390572B true SE390572B (sv) 1976-12-27

Family

ID=25564916

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7307665*A SE390572B (sv) 1972-05-29 1973-05-29 Elektromagnetisk avstandsmetapparat

Country Status (6)

Country Link
US (1) US3854133A (sv)
JP (1) JPS4957789A (sv)
CH (1) CH588082A5 (sv)
GB (1) GB1419536A (sv)
SE (1) SE390572B (sv)
ZA (1) ZA723648B (sv)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3981010A (en) * 1972-07-03 1976-09-14 Rmc Research Corporation Object locating system
US4247898A (en) * 1978-09-27 1981-01-27 Rca Corporation Apparatus for computing the change in bearing of an object
SE456867B (sv) * 1985-12-12 1988-11-07 Stiftelsen Inst Mikrovags Saett att uppmaeta avstaand och/eller hastighet mellan tvaa foeremaal
US4757745A (en) * 1987-02-26 1988-07-19 Vickers, Incorporated Microwave antenna and dielectric property change frequency compensation system in electrohydraulic servo with piston position control
US5365184A (en) * 1993-01-13 1994-11-15 United Technologies Corporation Quadrature phase processing
US5469172A (en) * 1993-11-16 1995-11-21 Bf Goodrich Flightsystem, Inc. Calibration method and apparatus for receiving transponder reply signals
WO2005008271A2 (en) * 2002-11-26 2005-01-27 Munro James F An apparatus for high accuracy distance and velocity measurement and methods thereof
US8823577B2 (en) 2009-12-23 2014-09-02 Itrack, Llc Distance separation tracking system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1210627A (fr) * 1955-11-15 1960-03-09 South African Council Scientif Procédé et appareillage pour déterminer des positions relatives par le temps de transmission d'ondes
US3078460A (en) * 1958-09-02 1963-02-19 Cubic Corp Electronic surveying system
US3229285A (en) * 1960-06-14 1966-01-11 South African Council Scientif Determining relative position by means of the transit time of waves
US3243811A (en) * 1961-11-01 1966-03-29 Cubic Corp Digital phase measuring and filtering system
DE1287801B (sv) * 1964-04-20
US3300780A (en) * 1965-01-19 1967-01-24 Cubic Corp Electronic surveying system
US3614226A (en) * 1969-03-17 1971-10-19 Holobeam Phase-locked pulsed distance-measuring equipment utilizing a coarse scale and fine scale measurement
CH515488A (de) * 1969-08-11 1971-11-15 Aga Ab Entfernungsmesseinrichtung

Also Published As

Publication number Publication date
CH588082A5 (sv) 1977-05-31
GB1419536A (en) 1975-12-31
JPS4957789A (sv) 1974-06-05
ZA723648B (en) 1973-09-26
US3854133A (en) 1974-12-10

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