NL187939C - Ondergedompelde akoestische reflector. - Google Patents

Ondergedompelde akoestische reflector.

Info

Publication number
NL187939C
NL187939C NLAANVRAGE7901494,A NL7901494A NL187939C NL 187939 C NL187939 C NL 187939C NL 7901494 A NL7901494 A NL 7901494A NL 187939 C NL187939 C NL 187939C
Authority
NL
Netherlands
Prior art keywords
acoustic reflector
immersed
immersed acoustic
reflector
acoustic
Prior art date
Application number
NLAANVRAGE7901494,A
Other languages
English (en)
Other versions
NL187939B (nl
NL7901494A (nl
Original Assignee
France Etat
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 France Etat filed Critical France Etat
Publication of NL7901494A publication Critical patent/NL7901494A/nl
Publication of NL187939B publication Critical patent/NL187939B/nl
Application granted granted Critical
Publication of NL187939C publication Critical patent/NL187939C/nl

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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S204/00—Chemistry: electrical and wave energy
    • Y10S204/06—Unusual non-204 uses of electrolysis

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
NLAANVRAGE7901494,A 1978-03-23 1979-02-26 Ondergedompelde akoestische reflector. NL187939C (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7808430A FR2420773A1 (fr) 1978-03-23 1978-03-23 Reflecteur acoustique immerge et procede de fabrication

Publications (3)

Publication Number Publication Date
NL7901494A NL7901494A (nl) 1979-09-25
NL187939B NL187939B (nl) 1991-09-16
NL187939C true NL187939C (nl) 1992-02-17

Family

ID=9206193

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7901494,A NL187939C (nl) 1978-03-23 1979-02-26 Ondergedompelde akoestische reflector.

Country Status (5)

Country Link
US (1) US4197920A (nl)
DE (1) DE2911505A1 (nl)
FR (1) FR2420773A1 (nl)
GB (1) GB2022613B (nl)
NL (1) NL187939C (nl)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5024872A (en) * 1986-02-27 1991-06-18 Raytheon Company Sheets of stretched and polarized polymer materials and method of manufacturer
US4784898A (en) * 1987-10-13 1988-11-15 The B. F. Goodrich Company High sonar transmission composition
FR2622333B1 (fr) * 1987-10-27 1990-01-26 Thomson Csf Revetement anechoique pour ondes acoustiques
US6311573B1 (en) * 1997-06-19 2001-11-06 Mahesh C. Bhardwaj Ultrasonic transducer for high transduction in gases and method for non-contact ultrasound transmission into solid materials
EP2419899B1 (en) 2009-06-25 2020-06-24 Defence Research And Development Organisation An acoustic energy reflector
US20200136198A1 (en) * 2017-09-13 2020-04-30 Farida Kasumzade Method and device for increasing battery life and prevention of premature battery failure

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1348828A (en) * 1919-02-01 1920-08-03 Submarine Signal Co Method and apparatus for sound insulation
US1378420A (en) * 1919-09-06 1921-05-17 Merritt Ernest Submarine sound detection
US3021504A (en) * 1956-07-02 1962-02-13 William J Toulis Apparatus for controlling the effective compressibility of a liquid
US3069486A (en) * 1958-05-26 1962-12-18 Yardney International Corp Electrochemical electrode structure
FR1577603A (nl) * 1967-08-12 1969-08-08
US3447627A (en) * 1967-09-29 1969-06-03 Us Navy Underwater sound reflector apparatus
FR2240813B1 (nl) * 1973-08-16 1976-04-30 France Etat
CH597371A5 (nl) * 1975-04-25 1978-03-31 Battelle Memorial Institute

Also Published As

Publication number Publication date
FR2420773A1 (fr) 1979-10-19
FR2420773B1 (nl) 1980-09-19
US4197920A (en) 1980-04-15
GB2022613A (en) 1979-12-19
NL187939B (nl) 1991-09-16
NL7901494A (nl) 1979-09-25
DE2911505C2 (nl) 1988-06-30
DE2911505A1 (de) 1979-09-27
GB2022613B (en) 1982-08-18

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Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
BA A request for search or an international-type search has been filed
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
BB A search report has been drawn up
BV The patent application has lapsed
V1 Lapsed because of non-payment of the annual fee