FR2224764A1 - - Google Patents

Info

Publication number
FR2224764A1
FR2224764A1 FR7412081A FR7412081A FR2224764A1 FR 2224764 A1 FR2224764 A1 FR 2224764A1 FR 7412081 A FR7412081 A FR 7412081A FR 7412081 A FR7412081 A FR 7412081A FR 2224764 A1 FR2224764 A1 FR 2224764A1
Authority
FR
France
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.)
Granted
Application number
FR7412081A
Other languages
French (fr)
Other versions
FR2224764B3 (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.)
Vaisala Oy
Original Assignee
Vaisala Oy
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 Vaisala Oy filed Critical Vaisala Oy
Publication of FR2224764A1 publication Critical patent/FR2224764A1/fr
Application granted granted Critical
Publication of FR2224764B3 publication Critical patent/FR2224764B3/fr
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
    • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
    • G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P13/00—Indicating or recording presence, absence, or direction, of movement
    • G01P13/02—Indicating direction only, e.g. by weather vane
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/18—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the time taken to traverse a fixed distance
    • G01P5/20—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the time taken to traverse a fixed distance using particles entrained by a fluid stream
    • 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
    • G01S1/08—Systems for determining direction or position line
    • G01S1/20—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
    • G01S1/30—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems the synchronised signals being continuous waves or intermittent trains of continuous waves, the intermittency not being for the purpose of determining direction or position line and the transit times being compared by measuring the phase difference
    • G01S1/308—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems the synchronised signals being continuous waves or intermittent trains of continuous waves, the intermittency not being for the purpose of determining direction or position line and the transit times being compared by measuring the phase difference particularly adapted to Omega systems
FR7412081A 1973-04-05 1974-04-05 Expired FR2224764B3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI105973A FI53175C (en) 1973-04-05 1973-04-05

Publications (2)

Publication Number Publication Date
FR2224764A1 true FR2224764A1 (en) 1974-10-31
FR2224764B3 FR2224764B3 (en) 1977-02-18

Family

ID=8505041

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7412081A Expired FR2224764B3 (en) 1973-04-05 1974-04-05

Country Status (6)

Country Link
JP (1) JPS614056B2 (en)
BR (1) BR7402521D0 (en)
CA (1) CA1035854A (en)
FI (1) FI53175C (en)
FR (1) FR2224764B3 (en)
GB (1) GB1459934A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2438276A1 (en) * 1978-10-02 1980-04-30 Tracor Wind speed measurement at distant point - is performed by radio sonde retransmitting signals whose rate of change of phase is measured

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63164653U (en) * 1987-04-14 1988-10-26
IL217985A (en) * 2012-02-07 2014-01-30 Ventus Product Dev & Consulting Ltd Wind parameter indication
US10495787B2 (en) 2016-06-16 2019-12-03 I.M. Systems Group, Inc. Integrated weather projection systems, methods, and apparatuses

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2438276A1 (en) * 1978-10-02 1980-04-30 Tracor Wind speed measurement at distant point - is performed by radio sonde retransmitting signals whose rate of change of phase is measured

Also Published As

Publication number Publication date
FI53175B (en) 1977-10-31
FR2224764B3 (en) 1977-02-18
CA1035854A (en) 1978-08-01
JPS509474A (en) 1975-01-30
FI53175C (en) 1978-02-10
JPS614056B2 (en) 1986-02-06
BR7402521D0 (en) 1974-11-05
GB1459934A (en) 1976-12-31
AU6711774A (en) 1975-09-25

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