FR2240813B1 - - Google Patents

Info

Publication number
FR2240813B1
FR2240813B1 FR7329805A FR7329805A FR2240813B1 FR 2240813 B1 FR2240813 B1 FR 2240813B1 FR 7329805 A FR7329805 A FR 7329805A FR 7329805 A FR7329805 A FR 7329805A FR 2240813 B1 FR2240813 B1 FR 2240813B1
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
FR7329805A
Other languages
French (fr)
Other versions
FR2240813A1 (de
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.)
Etat Francais
Original Assignee
Etat Francais
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 Etat Francais filed Critical Etat Francais
Priority to FR7329805A priority Critical patent/FR2240813B1/fr
Priority to DE2435336A priority patent/DE2435336A1/de
Priority to GB3389074A priority patent/GB1465932A/en
Priority to US494909A priority patent/US3901352A/en
Publication of FR2240813A1 publication Critical patent/FR2240813A1/fr
Application granted granted Critical
Publication of FR2240813B1 publication Critical patent/FR2240813B1/fr
Expired legal-status Critical Current

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
    • G10K11/20—Reflecting arrangements
    • G10K11/205—Reflecting arrangements for underwater use

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Aerials With Secondary Devices (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
FR7329805A 1973-08-16 1973-08-16 Expired FR2240813B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7329805A FR2240813B1 (de) 1973-08-16 1973-08-16
DE2435336A DE2435336A1 (de) 1973-08-16 1974-07-23 Schallwellen-unterwasserreflektor
GB3389074A GB1465932A (en) 1973-08-16 1974-07-31 Sound reflective elements
US494909A US3901352A (en) 1973-08-16 1974-08-05 Underwater reflector of sound waves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7329805A FR2240813B1 (de) 1973-08-16 1973-08-16

Publications (2)

Publication Number Publication Date
FR2240813A1 FR2240813A1 (de) 1975-03-14
FR2240813B1 true FR2240813B1 (de) 1976-04-30

Family

ID=9124019

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7329805A Expired FR2240813B1 (de) 1973-08-16 1973-08-16

Country Status (4)

Country Link
US (1) US3901352A (de)
DE (1) DE2435336A1 (de)
FR (1) FR2240813B1 (de)
GB (1) GB1465932A (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2307276A1 (fr) * 1975-04-11 1976-11-05 France Etat Hydrophone avec reflecteur acoustique
FR2344199A1 (fr) * 1976-03-08 1977-10-07 France Etat Antennes acoustiques a large bande passante
FR2420773A1 (fr) * 1978-03-23 1979-10-19 France Etat Reflecteur acoustique immerge et procede de fabrication
FR2536195A1 (fr) * 1982-11-17 1984-05-18 Sintra Alcatel Sa Reflecteur acoustique sous-marin
FR2539541B1 (fr) * 1983-01-19 1986-09-19 Thomson Csf Dispositif a interface reflectrice d'ondes acoustiques
US4674595A (en) * 1985-11-20 1987-06-23 The United States Of America As Represented By The Secretary Of The Navy Underwater acoustic pressure release baffle for depths to 2000 feet
GB2204217B (en) * 1987-05-02 1990-05-23 Gec Avionics Acoustic reflector
GB2422282A (en) 2005-01-14 2006-07-19 Secr Defence Acoustic reflector
GB2458810B (en) * 2008-04-01 2010-05-05 Secr Defence Acoustic reflector
EP2260484A2 (de) 2008-04-02 2010-12-15 The Secretary Of State For Defence Einstellbarer akustischer reflektor
EP2419899B1 (de) 2009-06-25 2020-06-24 Defence Research And Development Organisation Schallenergiereflektor
JP5698354B2 (ja) * 2010-07-16 2015-04-08 サブシー アセット ロケーション テクノロジーズ リミテッド 音響反射体
US8857368B2 (en) 2011-09-21 2014-10-14 The Boeing Company Aircraft location system for locating aircraft in water environments
WO2018195835A1 (zh) * 2017-04-26 2018-11-01 大连理工大学 宽带超薄声波扩散结构
CN110580896A (zh) * 2019-08-29 2019-12-17 罗家骏 一种水下真空角反射器
CN111928736B (zh) * 2020-06-18 2022-11-11 天津科技大学 一种原位自膨胀水下伪装体

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1974951A (en) * 1929-11-18 1934-09-25 Doorentz Richard Sound damping intermediate layer for ceilings, walls, and the like
US2811216A (en) * 1954-04-28 1957-10-29 Harris Transducer Corp Acoustic baffle construction
US2884084A (en) * 1954-10-28 1959-04-28 Sussman Harry Acoustic panel
US3756345A (en) * 1972-02-10 1973-09-04 Honeywell Inc Underwater acoustic device

Also Published As

Publication number Publication date
GB1465932A (en) 1977-03-02
US3901352A (en) 1975-08-26
FR2240813A1 (de) 1975-03-14
DE2435336A1 (de) 1975-03-06

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Legal Events

Date Code Title Description
ST Notification of lapse