FR2523795B3 - - Google Patents

Info

Publication number
FR2523795B3
FR2523795B3 FR8204380A FR8204380A FR2523795B3 FR 2523795 B3 FR2523795 B3 FR 2523795B3 FR 8204380 A FR8204380 A FR 8204380A FR 8204380 A FR8204380 A FR 8204380A FR 2523795 B3 FR2523795 B3 FR 2523795B3
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.)
Expired
Application number
FR8204380A
Other languages
French (fr)
Other versions
FR2523795A1 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR8204380A priority Critical patent/FR2523795A1/en
Publication of FR2523795A1 publication Critical patent/FR2523795A1/en
Application granted granted Critical
Publication of FR2523795B3 publication Critical patent/FR2523795B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/44—Special adaptations for subaqueous use, e.g. for hydrophone
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Transducers For Ultrasonic Waves (AREA)
FR8204380A 1982-03-16 1982-03-16 Submersible electroacoustic transducer - comprises liquid filled cylinder housing mechanism and having flexible membrane ends Granted FR2523795A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8204380A FR2523795A1 (en) 1982-03-16 1982-03-16 Submersible electroacoustic transducer - comprises liquid filled cylinder housing mechanism and having flexible membrane ends

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8204380A FR2523795A1 (en) 1982-03-16 1982-03-16 Submersible electroacoustic transducer - comprises liquid filled cylinder housing mechanism and having flexible membrane ends

Publications (2)

Publication Number Publication Date
FR2523795A1 FR2523795A1 (en) 1983-09-23
FR2523795B3 true FR2523795B3 (en) 1985-02-15

Family

ID=9272029

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8204380A Granted FR2523795A1 (en) 1982-03-16 1982-03-16 Submersible electroacoustic transducer - comprises liquid filled cylinder housing mechanism and having flexible membrane ends

Country Status (1)

Country Link
FR (1) FR2523795A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2586333A1 (en) * 1985-08-13 1987-02-20 Teboul Martin Submergible device for sound-rigging a liquid medium
FR2589663B1 (en) * 1985-11-04 1989-07-07 Espaces Nouveaux SPEAKER ASSEMBLY AND ACOUSTIC CHANNEL EQUIPPED WITH SAID ASSEMBLY
FR3070567B1 (en) * 2017-08-31 2020-05-15 Jean-Dominique Polack AQUATIC ACOUSTIC SPEAKER

Also Published As

Publication number Publication date
FR2523795A1 (en) 1983-09-23

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Legal Events

Date Code Title Description
ST Notification of lapse