EP2795611B1 - Akustisches antennenelement zum senden und/oder empfangen von wellen unter wasser und zugehörige akustische antenne - Google Patents

Akustisches antennenelement zum senden und/oder empfangen von wellen unter wasser und zugehörige akustische antenne Download PDF

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Publication number
EP2795611B1
EP2795611B1 EP12798758.4A EP12798758A EP2795611B1 EP 2795611 B1 EP2795611 B1 EP 2795611B1 EP 12798758 A EP12798758 A EP 12798758A EP 2795611 B1 EP2795611 B1 EP 2795611B1
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EP
European Patent Office
Prior art keywords
panel
links
support
acoustic
antenna element
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EP12798758.4A
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English (en)
French (fr)
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EP2795611A1 (de
Inventor
Eric Sernit
Jean-Marcelin PASCAL
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Thales SA
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Thales SA
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    • 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
    • G10K11/004—Mounting transducers, e.g. provided with mechanical moving or orienting device
    • G10K11/006—Transducer mounting in underwater equipment, e.g. sonobuoys
    • G10K11/008—Arrays of transducers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
    • B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
    • B63G8/39—Arrangements of sonic watch equipment, e.g. low-frequency, sonar
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
    • B63G9/00—Other offensive or defensive arrangements on vessels against submarines, torpedoes, or mines
    • B63G2009/005—Other offensive or defensive arrangements on vessels against submarines, torpedoes, or mines of sonic watch equipment, e.g. low-frequency or sonar

Definitions

  • the present invention relates to an acoustic antenna for receiving and / or transmitting submarine waves at medium frequency.
  • Such an antenna is, for example, intended to detect and locate underwater acoustic noise sources.
  • Medium frequencies are frequencies below 12 kHz.
  • the acoustic antennas receiving submarine waves include acoustic sensors that will be called acoustic panels in the following text. These acoustic sensors comprise at least one acoustic sensor enclosed in a coating of flexible material. The assembly thus formed forms an acoustic panel called acoustic panel.
  • An acoustic panel has a generally rectangular shape.
  • the acoustic panels are mounted on a support, for example, on the hull of a submarine.
  • the acoustic panels have a degree of freedom in flexion so as to marry the shape of this shell.
  • the panels are held against the wall by clamping with two flanges reported along the long sides of the acoustic panels.
  • the acoustic panels are sandwiched between the flanges and the hull of the submarine.
  • the ends of the flanges are mounted on rails extending longitudinally in the direction of the width of the panels on either side of the panels.
  • the flanges have a curved shape approximating the curvature of the submarine which allows them to ensure the tightening of the acoustic panels against the hull of the submarine.
  • This clamping solution has a number of disadvantages. Due to manufacturing tolerances of the hull of a submarine but also flanges, it can happen that the tightening of the acoustic panels is not effective. If the curvature of the hull is smaller than expected (larger radius of curvature than expected), or if the curvature of the flanges is greater than expected (radius of curvature less than expected), the acoustic panels are not properly tightened against the hull of the submarine. Knowing moreover that the acoustic panels can deform due to hydrodynamic disturbances, the risk is therefore to see the panels escape their fastening flanges.
  • the acoustic panels tighten the panels too important which leads to premature wear of the panels.
  • the object of the invention is to overcome the aforementioned drawbacks.
  • the subject of the invention is an element of an acoustic antenna for receiving and / or transmitting low-frequency underwater waves
  • an acoustic panel formed by at least one acoustic sensor enclosed in a flexible envelope , said acoustic panel being generally rectangular and being mounted against a convex support by means of a mounting device comprising a clamping device comprising at least two flanges whose ends are mounted on said support.
  • the respective flanges comprise at least one link between their two ends, and in that the clamping device comprises means for adjusting the tension of said links between their two respective ends, the flanges being arranged so that the support is curved. between the two respective ends of said links and so as to clamp the panel against the support by means of said links in tension.
  • a single device can be used on a submarine having a variable radius of curvature or on different submarines with different radii of curvature.
  • the clamping device ensures a clamping of the panel against the hull of the submarine even if the latter has irregularities and is not perfectly convex.
  • this clamping device makes it possible to prevent premature wear of the acoustic panels because of the means for adjusting the tension of the links.
  • An antenna according to the invention comprising one or more element (s) according to the invention is therefore inexpensive and withstands hydrodynamic stresses (because the acoustic panels are tight against their support).
  • the antenna according to the invention has good acoustic performance due to the use of links.
  • At least one of said links is in the form of a flexible band.
  • At least one of said links is in the form of a wire rope sheathed by means of a flexible sheath.
  • At least one of said flanges consists of a link.
  • At least one of said links is integral with the panel.
  • the panel is sandwiched between at least one of said links and the support.
  • At least one of said links is at least partially housed in a channel opening on the face of the panel facing the environment outside the support, called the outer face.
  • At least one of said links is flush with the outer face of the panel.
  • the volume of said channel which is not occupied by said at least one of said links is sealed by means of a clogging material so that the surface formed by the clogging material and said at least one of said links is flush with the face. outside of the panel.
  • At least one of said links is at least partially housed in a duct extending over the entire length or over the entire width of said panel.
  • the clamping means comprise at least three flanges.
  • the flanges are arranged to tighten the panel against the support only through said tension links.
  • the invention also relates to an antenna comprising a plurality of elements according to the invention.
  • the invention also relates to a vessel equipped with an antenna according to the invention.
  • the figure 1 schematically represents an acoustic antenna for submarine wave reception 2 according to the invention.
  • This antenna 2 is formed of a succession of acoustic panels 4 applied against a support 3 by means of mounting devices comprising clamping devices not shown in FIG. figure 1 .
  • the support 3 is, in the example shown on the figure 1 , the wall of a hull of a submarine 1.
  • the panels are here mounted on a side of the submarine.
  • FIG. 2 there is shown an element of the acoustic antenna, said element comprising an acoustic panel 4 and an example of clamping device of this panel 4 against the wall of the hull of the submarine.
  • Acoustic panels 4 are in the form of generally rectangular flexible panels.
  • the panels have the overall shape of a rectangular parallelepiped of thin thickness.
  • thin parallelepiped means a parallelepiped whose thickness is at least three times smaller than the width of the panel (which is itself less than its height). It is considered in the rest of the text that such a panel is generally rectangular.
  • the panels Since the hull of a submarine has a curved shape, the panels have a degree of freedom in bending so as to match the shape of the hull of the submarine.
  • the submarine has a general shape of X-axis cylinder corresponding to the axis of the submarine.
  • the small edges 6 of the panels 4 have been arranged parallel to this axis X.
  • the support 3 is convex between the short sides 6 of the panels 4.
  • the degree of freedom in flexion of the panels 4 is therefore here , a degree of freedom in rotation about an axis parallel to the small edges 6.
  • One variant would be to have the panels on a convex support between its two large edges 5. The panels should then have a degree of freedom in flexion about an axis parallel to these long sides.
  • Acoustic panels are acoustic sensors. They comprise at least one acoustic sensor, for example, a plurality of acoustic sensors.
  • the acoustic sensors are enclosed in a flexible waterproof envelope to protect the acoustic sensors from moisture.
  • the flexible envelope is, for example, a homogeneous structure. It may also be a composite structure comprising an outer casing containing at least one packing material, the sensors being embedded in a packing material. In the case of a composite envelope, the outer envelope serves as a mold for the (or) packing materials it contains.
  • the sensors can be embedded in a packing material in the form of a soft polyurethane.
  • soft polyurethane is meant a polyurethane whose Shore hardness is typically less than 50 A Shores.
  • an outer casing made of neoprene rubber or of neoprene rubber and hard polyurethane, typically of hardness at least equal to 70 shores, may be used, the hard polyurethane serving to seal the tank formed by the outer casing.
  • the clamping device of an acoustic panel comprises two flanges 7 mounted on the support 3. Each flange comprises between its two ends at least one link 8. The flanges provide the interface between the acoustic panel and the rest of the submarine 10 .
  • link 7 is meant a flexible object, that is to say flexible, elongated.
  • This is, for example, metal cables, for example, steel.
  • These cables may advantageously be coated with a flexible sheath, for example rubber. This sheath then prevents the link from deteriorating the panel 4 when they tighten the panel against the support 3.
  • the links can form flexible bands, it is called straps, or have a round section.
  • the use of straps allows to distribute the pressure exerted by the links on the acoustic panel. This ensures a good maintenance of the panel without causing premature wear thereof.
  • links also has acoustic advantages. They deteriorate acoustic performance less than a rigid flange, especially in the case where acoustic sensors arranged in the acoustic panel are sandwiched between a link and the support.
  • the links are made of a material that is optimized with regard to the acoustic performance sought on the panel.
  • a material that is optimized with regard to the acoustic performance sought on the panel.
  • fabric, polypropylene, or polyester straps are used.
  • cables of composite material for example fiberglass or carbon fiber, are used.
  • the links have a maximum width of 5 cm and a maximum thickness of 1 cm. These sections can maintain good acoustic performance even at high frequency especially in the case where acoustic sensors arranged in the acoustic panel are sandwiched between a link and the support. Acoustic performance degradation of the order of 1 dB is allowed.
  • the clamping device further comprises means for adjusting the tension of the links between their two respective ends. These means are able to put the links in longitudinal tension between their respective ends and to adjust this voltage.
  • the flanges 7 are arranged so that the support is curved between the two respective ends of the links and so that the flanges are clamping the panel against the support through the links when the links are in tension.
  • the flanges 7 are constituted by a link.
  • the tightening effect is obtained by exerting a longitudinal tension within the flange, which does not translate into a radial force on the hull of the submarine.
  • the flange 7 under the force of traction at its two ends 8 tends to take the rope, which has the effect of taking sandwiching the panel 4 between the flanges 7 which are here the links and the support 3.
  • the flanges 7 extend continuously from a first edge to the opposite edge of the panel, between which the support is curved. In other words, a convex line connects the two respective ends of the links.
  • the first edge and the second opposite edge are the respective small edges 6 of the panel.
  • the flanges 7 extend continuously over the entire length of the panel. But in a variant, the flanges could extend continuously over the entire width of the panel, for example, in the case where the support is curved between the two large edges of the panel.
  • the flanges 7 When the flanges 7 are tensioned between their respective ends, they come automatically, because of the convexity of the support between their respective two ends, to clamp against the panel 4 which ensures the maintenance of the panel 4 against the support 3. Indeed, by exerting a longitudinal tension within the flange which results in a tensile force tangential to the hull of the submarine at each end of the flange, the flange tends to take the rope to come tighten the panel against the support.
  • the flanges 7 are arranged near the two respective long sides 5 of the panel 4. They extend along these long sides.
  • the clamping means comprise more than two flanges 7. It is possible, for example, to have an additional flange 7 in the central part of the panel 4, for example but without limitation, along the long sides 5.
  • the increase in the size of the panels responds to the need to have in the same envelope more elemental hydrophones, which also allows to significantly reduce the cost of the antenna, the latter being directly related to the number of objects ( of panels) installed on the submarine.
  • Panels having a height of between 1 m and 2 m are preferably used.
  • panels having a width of between 40 cm and 60 cm are preferably used. In the case where the panels are fixed by means of more than two flanges, panels having a width of between 60 cm and 150 cm are preferably used.
  • the means for adjusting the tension of the links between their two ends comprise threaded ends 8 integral with the respective ends of the flanges 7.
  • the threaded ends 8 each cooperate with a nut 9 abutting against stop pieces 10 so as to maintain the ends of the flanges 7 relative to the support 3 and put them in tension between their two ends.
  • the stop pieces are rails (or pads) 10 arranged on either side of the panel 4 and being contiguous to the respective small edges 6 of the panel 4.
  • the rails 10 are integral with the hull of the submarine and extend longitudinally parallel to the axis of the submarine. These rails also have a wedging function of the panel 4. Indeed, the small edges 6 of the panels are abutting on the faces of these rails which are adjacent to the short sides of the panels.
  • the rails 10 have opposite faces 11 to the small edges 6 of the panels which are generally perpendicular to the wall of the submarine.
  • the threaded ends 8 penetrate into conduits 14 formed in these rails 10 and the nuts 9 abut against the faces of the rails opposite the small edges 6 of the panels.
  • the means for adjusting the tension of the links 7 are also means for holding the ends of the fixed flanges relative to the support 3, c that is to say means for mounting these ends on the support 3.
  • each flange put in tension comes automatically stick against the acoustic panel and thus ensures the tightness of the acoustic panel against the hull of the submarine.
  • the threaded rods 8 have a predetermined length. This length makes it possible to adjust the length of the links 7 between their two ends, which has the effect of ensuring the tensioning of the links 7 even when the hull of the submarine has different radii of curvature. Moreover, this characteristic makes it possible to adjust the pressure exerted by the links 7 on the panel 4.
  • a single device can be used on a submarine having a variable radius of curvature or on different submarines with different radii of curvature.
  • the clamping device ensures a clamping of the panel against the hull of the submarine even if the latter has irregularities and is not perfectly convex.
  • this clamping device makes it possible to prevent premature wear of the acoustic panels because of the means for adjusting the tension of the links.
  • An antenna according to the invention comprising one or more element (s) according to the invention is therefore inexpensive and withstands hydrodynamic stresses (because the acoustic panels are tight against their support).
  • the antenna according to the invention has good acoustic performance due to the use of links.
  • the flange is constituted by a link.
  • the flange comprises, between its two ends, one or more links and means for adjusting the tension of the links.
  • FIG. 4 An example of this variant is shown on the figure 4 , on which is represented a portion of a panel 4 installed as on the figure 1 .
  • the clamping device comprises fastening means 108a, 108b of the respective ends of a flange 107 on respective rails 100a, 100b integral with the support 3 not shown.
  • the flange 107 extends continuously over the entire length of the panel 4 between its small edges 6. It extends more precisely parallel to the long sides 5 of the panel 4.
  • the flange 107 includes a link 110.
  • the link 110 extends continuously over the entire length of the panel.
  • the flange 107 is arranged to tighten the panel 4 against the support 3 via the link 110 when the link 110 is tensioned.
  • the flange 107 is arranged so that the support is curved between the two ends of the link 110. More generally in this embodiment, the support 3 is curved between the two ends of the flange.
  • the panel is sandwiched between the flange 107 and the support 3.
  • the panel 4 is sandwiched between the link 110 and the support 3.
  • the link 110 extends continuously over the entire length of the panel 4 between its small edges 6. Thus, when the link is put in tension, the flange just tighten panel 4 via link 110.
  • the means for adjusting the tension of the link 110 between its two ends comprise a cable tensioner 112.
  • a cable tensioner conventionally comprises two threaded rods which are screwed into the same threaded body. When you turn the free body between the two stems, it tends to screw each rod in the body. The two rods are close to each other and the length of the device is reduced.
  • a first end of the cable tensioner constitutes a first end of the flange 107 and is fixed to the support by first fixing means 108b.
  • the second end of the tensioner 112 is attached to a first end of the link 110 by means of a fastening device 111.
  • the second end of the link 110 constitutes the second end of the flange 107 is fixed to the support by means of the second attachment means 108a.
  • the means for adjusting the tension of the link can be arranged between the two small edges 6 of the panel 4.
  • the flange then comes to tighten the panel through the link and through the means to adjust the tension of the link when the link is in tension.
  • the acoustic performance of the device is better when the flange comes to tighten the panel only by means of the link.
  • Each flange may include one or more links and means for adjusting the voltage of the link (s).
  • the acoustic panels have an inner face, not visible in the figures, arranged against the wall of the hull of the submarine and an outer face 12, visible on the figures 2 and 4 , facing the environment outside the submarine, or more generally outside the support.
  • the outer face 12 of the acoustic panels is flat at least in its central part. This characteristic is necessary to disturb as little as possible the hydrodynamics of the submarine.
  • the links are at least partially housed in channels 13 opening on the outer face 12 of the panel 4.
  • the channels 13 extend here over the entire length of the panel 4 but could extend over its entire width.
  • the links 7 are flush with the outer face 12 of the panel 4.
  • This characteristic makes it possible to limit the disturbances of the hydrodynamics of the submarine generated by the antenna.
  • the surface formed by the links 7 and the outer face of the panel 4 is not necessarily flat. This is, for example, the case when the channels are wider than the links that are housed there, as represented on the figure 5 .
  • the volume of a channel 13 not occupied by a link 7 is sealed by means of a clogging material so that the surface formed by the clogging material and the links 7 is flush with the outer face of the panel.
  • the links are integral with the panel they tighten. This solution is very advantageous in terms of simplicity of mounting the antenna on its support. Only one step is needed to bring back the panel and the links on the wall of the submarine. It is not necessary to report these items separately.
  • the links are integral with the panel when it comes bring the panel on the support.
  • the links 7 are at least partially housed in conduits 130 formed in the panel 4 and extending over the entire length or width (when the support is bulged between the long edges of the panel 4).
  • the ducts open on both sides of the acoustic panel.
  • This characteristic is advantageous both in terms of simplicity of assembly but also because it limits the disturbances of the hydrodynamics of the submarine generated by the antenna. Indeed, because the ducts are formed within the panel, no element of the clamping device comes to cover the outer face of the panel.
  • the links 7 extend over the entire length of the acoustic panel within conduits 130 formed in the panel 4, they automatically tighten the panel against the support when they are stretched while pressing on the surface of the duct.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Claims (15)

  1. Akustisches Antennenelement (2) zum Empfangen und/oder Senden von niederfrequenten Unterwasserwellen, umfassend eine Akustikplatte (4), die von wenigstens einem in einem flexiblen Gehäuse untergebrachten akustischen Sensor gebildet wird, wobei die Akustikplatte (4) allgemein rechteckig und an einer gekrümmten Auflage (3) mittels einer Montagevorrichtung montiert ist, die eine Aufspannvorrichtung umfasst, die wenigstens zwei Flansche (7, 107) umfasst, deren Enden an der Auflage (3) montiert sind, dadurch gekennzeichnet, dass die jeweiligen Flansche (7, 107) wenigstens ein Verbindungsstück (7, 110) zwischen ihren beiden Enden umfassen, und dadurch, dass die Aufspannvorrichtung Mittel zum Justieren der Spannung der Verbindungstücke (7, 110) zwischen ihren beiden jeweiligen Enden umfasst, wobei die Flansche (7, 107) so angeordnet sind, dass die Auflage (3) zwischen den beiden jeweiligen Enden der Verbindungstücke gekrümmt ist, und so, dass die Platte zwischen der Auflage (3) mittels der Verbindungsstücke (7, 110) eingespannt wird, wenn sie unter Spannung ist.
  2. Akustisches Antennenelement nach dem vorherigen Anspruch, wobei wenigstens eines der Verbindungsstücke in Form eines flexiblen Bandes realisiert wird.
  3. Akustisches Antennenelement nach einem der vorherigen Ansprüche, wobei wenigstens eines der Verbindungsstücke in Form eines mit einer flexiblen Ummantelung ummantelten Drahtseils erzeugt wird.
  4. Akustisches Antennenelement nach einem der vorherigen Ansprüche, wobei wenigstens einer der Flansche (7) von einem Verbindungsstück gebildet wird.
  5. Akustisches Antennenelement nach einem der vorherigen Ansprüche, wobei wenigstens eines der Verbindungsstücke einstückig mit der Platte ist.
  6. Akustisches Antennenelement nach einem der vorherigen Ansprüche, wobei die Platte (4) sandwichartig zwischen wenigstens einem der Verbindungsstücke (7, 110) und der Auflage (3) eingeschlossen ist.
  7. Antennenelement nach Anspruch 6, wobei wenigstens eines der Verbindungsstücke (7) wenigstens teilweise in einem Kanal (13) untergebracht ist, der an der Fläche (12) der Platte (4), die zur Umgebung außerhalb der Auflage (3) hin liegt, Außenfläche genannt, offen ist.
  8. Antennenelement nach einem der vorherigen Ansprüche, wobei wenigstens eines der Verbindungsstücke (7) mit der Außenfläche (12) der Platte (4) bündig ist.
  9. Antennenelement nach einem der Ansprüche 7 bis 8, wobei das Volumen des Kanals (13), das nicht von dem wenigstens einem der Verbindungsstücke (7) besetzt wird, mit einem Verstopfungsmaterial verstopft ist, so dass die von dem Verstopfungsmaterial gebildete Fläche und das wenigstens eine der Verbindungsstücke (7) mit der Außenfläche (12) der Platte bündig sind.
  10. Akustisches Antennenelement nach einem der vorherigen Ansprüche, wobei wenigstens eines der Verbindungsstücke (7) wenigstens teilweise in einem Conduit (130) untergebracht ist, der über die gesamte Länge oder über die gesamte Breite der Platte verläuft.
  11. Akustisches Antennenelement nach einem der vorherigen Ansprüche, wobei die Aufspannmittel wenigstens drei Flansche umfassen.
  12. Antennenelement nach einem der vorherigen Ansprüche, wobei die Flansche so angeordnet sind, dass sie die Platte (4) allein mittels der gespannten Verbindungsstücke an der Auflage (3) aufspannen.
  13. Antenne, die mehrere Elemente nach einem der vorherigen Ansprüche umfasst.
  14. Schiff, das mit einer Antenne nach dem vorherigen Anspruch ausgestattet ist.
  15. Verfahren zum Montieren einer Akustikplatte, die von wenigstens einem in einem flexiblen Gehäuse untergebrachten akustischen Sensor gebildet wird, wobei die Akustikplatte (4) allgemein rechteckig ist und an einer gekrümmten Auflage (3) anliegt, das Folgendes beinhaltet:
    - einen Schritt, in dem die Platte an einer Auflage angebracht wird;
    - einen Schritt, in dem die Platte mit einer Aufspannvorrichtung an der Auflage aufgespannt wird, die wenigstens zwei Flansche umfasst, die jeweils wenigstens ein Verbindungsstück zwischen ihren beiden Enden umfassen, und Mittel zum Justieren der Spannung der Verbindungsstücke zwischen ihren beiden jeweiligen Enden, wobei der Aufspannschritt einen Schritt beinhaltet, in dem die Flansche so angeordnet sind, dass die Auflage zwischen den beiden jeweiligen Enden der Verbindungsstücke gekrümmt ist, und so, dass die Platte mittels der gespannten Verbindungsstücke gegen die Auflage aufgespannt wird,
    wobei die Verbindungsstücke einstückig mit der Platte sind, wenn die Platte an der Auflage angebracht wird.
EP12798758.4A 2011-12-23 2012-12-11 Akustisches antennenelement zum senden und/oder empfangen von wellen unter wasser und zugehörige akustische antenne Active EP2795611B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1104073A FR2984771B1 (fr) 2011-12-23 2011-12-23 Element d'antenne acoustique d'emission et/ou de reception d'ondes sous-marines et antenne acoustique associee
PCT/EP2012/075130 WO2013092320A1 (fr) 2011-12-23 2012-12-11 Element d'antenne acoustique d'emission et/ou de reception d'ondes sous-marines et antenne acoustique associee

Publications (2)

Publication Number Publication Date
EP2795611A1 EP2795611A1 (de) 2014-10-29
EP2795611B1 true EP2795611B1 (de) 2016-03-30

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Country Status (8)

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US (1) US9245512B2 (de)
EP (1) EP2795611B1 (de)
KR (1) KR20140119042A (de)
AU (1) AU2012358103B2 (de)
CA (1) CA2860350A1 (de)
FR (1) FR2984771B1 (de)
SG (1) SG11201403464RA (de)
WO (1) WO2013092320A1 (de)

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Publication number Priority date Publication date Assignee Title
FR2984771B1 (fr) * 2011-12-23 2014-01-31 Thales Sa Element d'antenne acoustique d'emission et/ou de reception d'ondes sous-marines et antenne acoustique associee
FR2985095B1 (fr) * 2011-12-23 2014-01-31 Thales Sa Module acoustique et antenne integrant ledit module acoustique
WO2016209119A1 (ru) * 2015-06-26 2016-12-29 Общество С Ограниченной Ответственностью "Лаборатория Подводной Связи И Навигации" (Ru) Гидроакустическое устройство

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US6421301B1 (en) * 2001-01-04 2002-07-16 William J. Scanlon Transducer shield
FR2984771B1 (fr) * 2011-12-23 2014-01-31 Thales Sa Element d'antenne acoustique d'emission et/ou de reception d'ondes sous-marines et antenne acoustique associee

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US9245512B2 (en) 2016-01-26
US20150294661A1 (en) 2015-10-15
FR2984771B1 (fr) 2014-01-31
CA2860350A1 (en) 2013-06-27
AU2012358103A1 (en) 2014-07-24
WO2013092320A1 (fr) 2013-06-27
KR20140119042A (ko) 2014-10-08
AU2012358103B2 (en) 2017-06-01
SG11201403464RA (en) 2014-09-26
FR2984771A1 (fr) 2013-06-28
EP2795611A1 (de) 2014-10-29

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