BE778760A - Dispositif de transmission a basse frequence d'energie rayonnante - Google Patents

Dispositif de transmission a basse frequence d'energie rayonnante

Info

Publication number
BE778760A
BE778760A BE778760A BE778760A BE778760A BE 778760 A BE778760 A BE 778760A BE 778760 A BE778760 A BE 778760A BE 778760 A BE778760 A BE 778760A BE 778760 A BE778760 A BE 778760A
Authority
BE
Belgium
Prior art keywords
transmission device
low frequency
radiant energy
frequency transmission
energy low
Prior art date
Application number
BE778760A
Other languages
English (en)
French (fr)
Inventor
W L Konrad
M A Chramiec
Original Assignee
Raytheon Co
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 Raytheon Co filed Critical Raytheon Co
Publication of BE778760A publication Critical patent/BE778760A/xx

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
    • G10K11/341—Circuits therefor
    • G10K11/343—Circuits therefor using frequency variation or different frequencies
    • 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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic 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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Radio Transmission System (AREA)
  • Transmitters (AREA)
BE778760A 1971-02-01 1972-01-31 Dispositif de transmission a basse frequence d'energie rayonnante BE778760A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11121871A 1971-02-01 1971-02-01

Publications (1)

Publication Number Publication Date
BE778760A true BE778760A (fr) 1972-05-16

Family

ID=22337233

Family Applications (1)

Application Number Title Priority Date Filing Date
BE778760A BE778760A (fr) 1971-02-01 1972-01-31 Dispositif de transmission a basse frequence d'energie rayonnante

Country Status (12)

Country Link
JP (1) JPS5328784B1 (no)
AU (1) AU459096B2 (no)
BE (1) BE778760A (no)
CA (1) CA950105A (no)
DE (1) DE2204028C3 (no)
ES (1) ES399340A1 (no)
FR (1) FR2124285B1 (no)
GB (1) GB1360901A (no)
IT (1) IT949657B (no)
NL (1) NL160656C (no)
NO (1) NO133984C (no)
SE (1) SE377385B (no)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2385271A1 (fr) * 1977-03-25 1978-10-20 Thomson Csf Dispositif de teletransmission d'informations, notamment pour systeme de teleguidage de vehicules soumis a de grandes accelerations, et systeme de teleguidage comportant un tel dispositif
FR2431137A2 (fr) * 1977-12-20 1980-02-08 Inst Francais Du Petrole Sonar pour obtenir une representation topographique d'une surface immergee et des couches sous-jacentes
FR2589248B1 (fr) * 1978-02-17 1988-01-22 Thomson Csf Amelioration des systemes d'autoguidage acoustique de vehicules sous-marins
FR2441180A1 (fr) * 1978-11-10 1980-06-06 Thomson Csf Courantometre doppler pour grands fonds
JPS55114980A (en) * 1979-02-28 1980-09-04 Sumitomo Metal Mining Co Ltd Inspection method for massive object on sea bottom and its unit
DE2920330A1 (de) * 1979-05-19 1980-11-20 Krupp Gmbh Echolot mit zwei sendefrequenzen
WO1981000456A1 (en) * 1979-07-30 1981-02-19 Dorian Ind Pty Ltd Method and device for measuring distances
FR2538124B1 (fr) * 1982-12-17 1986-02-07 Thomson Csf Systeme acoustique a antennes parametriques multifaisceaux
GB8405099D0 (en) * 1984-02-28 1984-04-04 Donnelly K Hydrographic survey module
DE3416246C1 (de) * 1984-05-02 1985-10-24 Ski-Data Computer-Handelsgesellschaft mbH, St. Leonhard, Grödig Vorrichtung zur Steuerung der Bewegungen der Planierwerkzeuge von Pistenpraeparierfahrzeugen
FR2594233A1 (fr) * 1986-02-07 1987-08-14 Morand Christian Dispositif d'analyse et de visualisation en couleurs d'objets eventuellement masques par un ecran

Also Published As

Publication number Publication date
IT949657B (it) 1973-06-11
DE2204028C3 (de) 1974-06-12
FR2124285B1 (no) 1977-04-01
NL160656C (nl) 1979-11-15
DE2204028B2 (de) 1973-11-08
FR2124285A1 (no) 1972-09-22
NL160656B (nl) 1979-06-15
SE377385B (no) 1975-06-30
CA950105A (en) 1974-06-25
AU459096B2 (en) 1975-03-20
NO133984B (no) 1976-04-20
DE2204028A1 (de) 1972-08-10
ES399340A1 (es) 1975-06-01
NL7201109A (no) 1972-08-03
JPS5328784B1 (no) 1978-08-16
AU3766472A (en) 1973-07-12
GB1360901A (en) 1974-07-24
NO133984C (no) 1976-07-28

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: RAYTHEON CY

Effective date: 19890131