FR830133A - Method and device for determining the direction of incidence of oscillatory phenomena, by comparison of their total propagation times - Google Patents

Method and device for determining the direction of incidence of oscillatory phenomena, by comparison of their total propagation times

Info

Publication number
FR830133A
FR830133A FR830133DA FR830133A FR 830133 A FR830133 A FR 830133A FR 830133D A FR830133D A FR 830133DA FR 830133 A FR830133 A FR 830133A
Authority
FR
France
Prior art keywords
incidence
comparison
determining
propagation times
total propagation
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
Other languages
French (fr)
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.)
BROWN
BBC Brown Boveri AG Germany
Original Assignee
BROWN
Brown Boveri und Cie AG Germany
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 BROWN, Brown Boveri und Cie AG Germany filed Critical BROWN
Application granted granted Critical
Publication of FR830133A publication Critical patent/FR830133A/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
    • G01S3/02—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 radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
    • 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
    • G01S1/72—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 ultrasonic, sonic or infrasonic waves
    • 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
    • G01S3/02—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 radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
    • G01S3/48—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems the waves arriving at the antennas being continuous or intermittent and the phase difference of signals derived therefrom being measured
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F10/00—Apparatus for measuring unknown time intervals by electric means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
FR830133D 1936-12-01 1937-11-29 Method and device for determining the direction of incidence of oscillatory phenomena, by comparison of their total propagation times Expired FR830133A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH198570T 1936-12-01

Publications (1)

Publication Number Publication Date
FR830133A true FR830133A (en) 1938-07-21

Family

ID=4441384

Family Applications (1)

Application Number Title Priority Date Filing Date
FR830133D Expired FR830133A (en) 1936-12-01 1937-11-29 Method and device for determining the direction of incidence of oscillatory phenomena, by comparison of their total propagation times

Country Status (4)

Country Link
CH (1) CH198570A (en)
DE (1) DE689473C (en)
FR (1) FR830133A (en)
GB (1) GB493340A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1122881B (en) * 1954-09-30 1962-01-25 Electroacustik G M B H Method and device for displaying the position of objects being soldered

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2496031A (en) * 1947-12-30 1950-01-31 Rca Corp Dual microphone sound detector system
DE943597C (en) * 1951-04-10 1956-05-24 Gasaccumulator Svenska Ab Device for automatic gain control in receivers for radio direction finding
US3177489A (en) * 1960-01-11 1965-04-06 Thompson Ramo Wooldridge Inc Interference suppression systems
DE1220291B (en) * 1960-06-11 1966-06-30 Atlas Werke Ag Method for determining the direction of incident sound wave energy

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1122881B (en) * 1954-09-30 1962-01-25 Electroacustik G M B H Method and device for displaying the position of objects being soldered

Also Published As

Publication number Publication date
CH198570A (en) 1938-06-30
GB493340A (en) 1938-10-06
DE689473C (en) 1940-03-29

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