FR2442565A1 - METHOD OF FLUID ACOUSTIC AMPLIFICATION AND PNEUMATIC SPEAKER FOR IMPLEMENTING THE SAME - Google Patents

METHOD OF FLUID ACOUSTIC AMPLIFICATION AND PNEUMATIC SPEAKER FOR IMPLEMENTING THE SAME

Info

Publication number
FR2442565A1
FR2442565A1 FR7833178A FR7833178A FR2442565A1 FR 2442565 A1 FR2442565 A1 FR 2442565A1 FR 7833178 A FR7833178 A FR 7833178A FR 7833178 A FR7833178 A FR 7833178A FR 2442565 A1 FR2442565 A1 FR 2442565A1
Authority
FR
France
Prior art keywords
implementing
same
acoustic amplification
fluid acoustic
amplification
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.)
Granted
Application number
FR7833178A
Other languages
French (fr)
Other versions
FR2442565B1 (en
Inventor
Jean Francois Louis Julia
Louis Duthion
Cyrille Francois Pavlin
Pierre Jean Alphonse Facon
Jacques Souquet
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.)
Bertin Technologies SAS
Original Assignee
Bertin et Cie SA
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 Bertin et Cie SA filed Critical Bertin et Cie SA
Priority to FR7833178A priority Critical patent/FR2442565A1/en
Priority to EP19790400903 priority patent/EP0012070B1/en
Priority to DE7979400903T priority patent/DE2966004D1/en
Priority to JP16308679U priority patent/JPS55102293U/ja
Publication of FR2442565A1 publication Critical patent/FR2442565A1/en
Application granted granted Critical
Publication of FR2442565B1 publication Critical patent/FR2442565B1/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
    • H04R1/42—Combinations of transducers with fluid-pressure or other non-electrical amplifying means
    • 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
    • G10K11/08—Non-electric sound-amplifying devices, e.g. non-electric megaphones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Amplifiers (AREA)

Abstract

Procédé d'amplification acoustique fluide résultant de l'action d'amplificateur fluidique, le signal à l'entrée de cette chaîne issu d'un microphone ou d'une mémoire d'informations est transformé en signal fluidique par un transducteur. Haut parleur pneumatique de mise en oeuvre du procédé comprenant un seul étage d'amplification; l'amplification résultant de fluctuations de débit autour d'un débit moyen d'un écoulement de fluide sous pression. Application privilégiée aux aéronefs ou navires de surveillance ou de secours pour la transmission de messages parlés à de très grandes distances.A method of fluid acoustic amplification resulting from the action of a fluidic amplifier, the signal at the input of this chain coming from a microphone or from an information memory is transformed into a fluidic signal by a transducer. Pneumatic loudspeaker for implementing the method comprising a single amplification stage; amplification resulting from flow fluctuations around an average flow rate of a pressurized fluid flow. Preferred application to surveillance or rescue aircraft or vessels for the transmission of spoken messages at very great distances.

FR7833178A 1978-11-24 1978-11-24 METHOD OF FLUID ACOUSTIC AMPLIFICATION AND PNEUMATIC SPEAKER FOR IMPLEMENTING THE SAME Granted FR2442565A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7833178A FR2442565A1 (en) 1978-11-24 1978-11-24 METHOD OF FLUID ACOUSTIC AMPLIFICATION AND PNEUMATIC SPEAKER FOR IMPLEMENTING THE SAME
EP19790400903 EP0012070B1 (en) 1978-11-24 1979-11-22 Pneumatic speaker with constant fluid flow
DE7979400903T DE2966004D1 (en) 1978-11-24 1979-11-22 Pneumatic speaker with constant fluid flow
JP16308679U JPS55102293U (en) 1978-11-24 1979-11-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7833178A FR2442565A1 (en) 1978-11-24 1978-11-24 METHOD OF FLUID ACOUSTIC AMPLIFICATION AND PNEUMATIC SPEAKER FOR IMPLEMENTING THE SAME

Publications (2)

Publication Number Publication Date
FR2442565A1 true FR2442565A1 (en) 1980-06-20
FR2442565B1 FR2442565B1 (en) 1982-11-05

Family

ID=9215281

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7833178A Granted FR2442565A1 (en) 1978-11-24 1978-11-24 METHOD OF FLUID ACOUSTIC AMPLIFICATION AND PNEUMATIC SPEAKER FOR IMPLEMENTING THE SAME

Country Status (4)

Country Link
EP (1) EP0012070B1 (en)
JP (1) JPS55102293U (en)
DE (1) DE2966004D1 (en)
FR (1) FR2442565A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5054080A (en) * 1984-10-29 1991-10-01 Bertin & Cie Pneumatic loudspeaker with a continuous pressurized fluid flow
FR2807277A1 (en) * 2000-04-04 2001-10-05 Bertin Technologies Sa PNEUMATIC SPEAKER

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE428346B (en) * 1980-10-17 1983-06-27 Kockumation Ab THE PRESSURE GAS DRIVE SOUND TRANSMITTER WITH THE RESONANCE HORN AND WITH THE BODY FOR CONTROL OF THE PRESSURE OF THE PRESSURE GAS THROUGH THE RESONANCE HORN
FR2609827B1 (en) * 1987-01-16 1991-04-12 Electricite De France METHOD AND DEVICE FOR REDUCING RADIANT DOMINANT HARMONIC COMPONENT NOISE BY AN APPARATUS WALL
JP2936562B2 (en) * 1988-02-15 1999-08-23 ヤマハ株式会社 Electric control type air flow generator
FR2637148B1 (en) * 1988-09-29 1991-06-07 Bertin & Cie ELECTRODYNAMIC-FLUIDIC TRANSDUCER EQUIPMENT FOR PNEUMATIC SPEAKER
US5117462A (en) * 1991-03-20 1992-05-26 Jbl Incorporated Phasing plug for compression driver
DE19814798C2 (en) * 1998-04-02 2000-10-12 Lfk Gmbh Device for generating infrasound
CN101282590B (en) * 2007-04-06 2011-08-17 中国科学院声学研究所 High-efficiency complete-modulation pneumatic loudspeaker
WO2015041623A1 (en) 2013-09-20 2015-03-26 Dushko Yuriy Viktorovich The method of sound oscillations generation and the device for its implementation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR371113A (en) * 1906-11-05 1907-02-27 "L'aspirator" Sound amplifier for megaphone, acoustic tubes, telephones, etc.
US1904156A (en) * 1931-08-06 1933-04-18 Bell Telephone Labor Inc Pneumatic sound reproducer

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435534A (en) * 1942-07-25 1948-02-03 Eaves Sound Projectors Inc Electropneumatic sound reproducer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR371113A (en) * 1906-11-05 1907-02-27 "L'aspirator" Sound amplifier for megaphone, acoustic tubes, telephones, etc.
US1904156A (en) * 1931-08-06 1933-04-18 Bell Telephone Labor Inc Pneumatic sound reproducer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/71 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5054080A (en) * 1984-10-29 1991-10-01 Bertin & Cie Pneumatic loudspeaker with a continuous pressurized fluid flow
FR2807277A1 (en) * 2000-04-04 2001-10-05 Bertin Technologies Sa PNEUMATIC SPEAKER
WO2001076317A1 (en) * 2000-04-04 2001-10-11 Bertin Technologies Sa Pneumatic loudspeaker

Also Published As

Publication number Publication date
JPS55102293U (en) 1980-07-16
FR2442565B1 (en) 1982-11-05
EP0012070B1 (en) 1983-07-27
EP0012070A1 (en) 1980-06-11
DE2966004D1 (en) 1983-09-01

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