EP4533444A1 - Antenne für den empfang von wasserschall - Google Patents
Antenne für den empfang von wasserschallInfo
- Publication number
- EP4533444A1 EP4533444A1 EP23729020.0A EP23729020A EP4533444A1 EP 4533444 A1 EP4533444 A1 EP 4533444A1 EP 23729020 A EP23729020 A EP 23729020A EP 4533444 A1 EP4533444 A1 EP 4533444A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- antenna
- jacket
- water sound
- water
- cavity
- 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.)
- Pending
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
- G10K11/004—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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/38—Seismology; Seismic or acoustic prospecting or detecting specially adapted for water-covered areas
- G01V1/3843—Deployment of seismic devices, e.g. of streamers
Definitions
- the invention relates to an antenna for receiving water sound.
- the object of the present invention is therefore to create an improved concept for antennas for receiving water sound.
- Exemplary embodiments show a foldable antenna for receiving water sound.
- the antenna has a jacket that encloses a cavity.
- the jacket can therefore, for example, be tubular, ie hollow cylindrical.
- the antenna can be used as a trailing antenna.
- any other hollow shape is also conceivable, for example with a square, round or elliptical cross section.
- the jacket can also be spherical and form a hollow sphere.
- the shell may have a polyhedral geometry. These shapes refer to the fully unfolded mantle. The coat is not complete When unfolded, the shell will typically have the shape of a polygon in cross-section due to the edges of the tiles.
- the casing has tiling, so that the casing can be folded at least in the section in order to reduce the cavity of the casing and thus the volume of the antenna.
- Tiling also known as tiling
- tiles These tiles preferably have common edge points at most on their edges.
- each point of the shell preferably lies within at least one tile (the edge of the tile belonging to the tile).
- a tile is considered a polygon in the plane, for example a triangle or any other closed shape.
- the casing can be bent at the edges of the tiles so that the casing can be folded in the area with a suitable arrangement of the tiles.
- the edge is also referred to as a fold edge or fold line. The sum of the folded edges can form the tiling.
- the antenna has a large number of water sound transducers.
- a water sound transducer of the plurality of water sound transducers is attached to the casing in such a way that the water sound transducer is arranged within the dimension of a tile. This means that the water sound transducer will not be kinked when the jacket is folded.
- the water sound transducer in particular the water sound transducer of the large number of water sound transducers, the antenna is plate-shaped or rod-shaped.
- the plate or the rod or rods is preferably flexible.
- a maximum of one water sound transducer is preferably arranged per tile. This means that it is also possible and common for tiles to not have a water sound transducer.
- the density of the water sound transducers in the antenna i.e. the number of free tiles, is determined by the application scenario of the towed antenna. Many occupied tiles make it possible to cover a wide range of reception frequencies. Few occupied tiles make it possible to provide a cheap antenna.
- the water sound transducer can comprise, for example, rectangular, piezoceramic rods that are embedded between layers of adhesive, a plurality of electrodes and optionally an end plate or film, e.g. a polyimide film.
- the water sound transducer can be applied as a thin, in particular surface-conforming, film to various types of sheath materials (typically glued) or embedded in a composite structure.
- the electrodes of the plurality of electrodes can run transversely to the rods and make electrical contact with them.
- a main contact strand for the electrodes can run parallel to the rods on both sides in order to pick up a voltage from the electrodes or to apply a voltage to them.
- the electrodes can be connected alternately to one of the two main strands, so that the electrodes are arranged in an interlocking manner. This arrangement enables the polarization of the rods in the plane.
- the water sound transducer acts as a sound transmitter. If there is no voltage, the water sound transducer acts as a sound receiver.
- Such a water sound transducer can be based on MFC (Macro Fiber Composite) technology.
- piezo rods directly to the jacket or to embed them in the jacket.
- the voltage can also be applied or tapped here using electrodes.
- a line for contacting a water sound transducer, more precisely an electrode of the water sound transducer, or the circuit board can be guided (preferably completely) along the folding edges of the tiling. This prevents the cable from kinking and breaking.
- the line can be arranged in such a way that it is guided helically around the jacket.
- a cable designed for bends and kinks can be used.
- Such a line can be a so-called stranded wire.
- a stranded wire is to be understood as meaning a flexible cable made up of a large number of wires, which are in particular twisted together. It is also possible to design the cable, for example, as a flexible ribbon cable.
- Ribbon cables typically have a plurality of electrical conductors, for example strands, arranged next to one another. If the ribbon cable is designed accordingly, it is also possible, for example, to electrically contact several water sound transducers.
- the electrical conductors can, for example, be branched off individually from the ribbon cable in order to establish contact with one of the water sound transducers.
- the water sound transducers can, for example, convert a bend perpendicular to a main extent of the plate or the rod(s) into a corresponding water sound signal.
- FIG. 1 For example, shows the jacket with an opening which is designed to allow a fluid, in particular a liquid, for example water, to penetrate into the jacket in order to unfold the jacket by filling the cavity with the fluid.
- the jacket is preferably flooded with the water that surrounds the antenna.
- any fluid for example air or oil
- water has the advantage that the use of an oil-resistant material for the jacket is no longer necessary. This is a problem, for example, with many polymers.
- the jacket can therefore have or consist of any salt water-resistant material, in particular a polymer.
- water has the advantage over gas in that it is incompressible and can better withstand the high water pressure that is already present at shallow depths.
- water does not need to be carried separately because the antenna is inserted in the water and the water can therefore flow into the jacket or be pumped into the jacket.
- the antenna can comprise a pump to pump the fluid, preferably water, for example through the opening, into the cavity of the jacket, so that the jacket unfolds by filling the cavity.
- the jacket can also fill without a pump, for example if the antenna is a towed antenna and is towed behind a watercraft.
- the jacket also has a pressure relief valve which is designed to allow the fluid and thus also the water to escape from the jacket if the pressure in the jacket becomes too high. This can prevent the casing from being destroyed by excessive internal pressure.
- this pump or another pump can pump the fluid, preferably the water, out of the cavity of the jacket, so that the jacket can be folded at least in that section. If the jacket is full of water, the water pressure prevents the antenna from folding.
- the antenna is a trailing antenna, so that the length of the trailing antenna is reduced by reducing the size of the cavity of the jacket.
- an analogous method for producing an antenna for receiving water sound comprising the following steps: forming a tile at least in a section of a cladding material, so that the cladding material is foldable along the edges of the tile; Joining ends of the jacket material together so that the jacket material forms a jacket that encloses a cavity.
- Fig. 1 a schematic side view of a foldable antenna, with Fig. 1a showing a casing in an almost completely folded state and Fig. 1b showing the casing in a slightly unfolded state;
- Fig. 2 is a schematic representation of a folding pattern for folding the casing material to produce the casing with its tiles according to Fig. 1;
- Fig. 3 a schematic block diagram of an antenna according to exemplary embodiments.
- the antenna 20 includes a casing 22 which has a tiling with a plurality of tiles 24.
- the tiling 24 is shown here as a triangular shape, but it can also look any other way.
- the jacket 22 can be folded along edges 26 that form the tiling in order to reduce the size of the one cavity that the jacket 22 encloses. So it can be clearly seen from Fig. 1 b that the cavity within the jacket is larger than the cavity in Fig. 1a. It is shown that the tiling is carried out over the entire jacket, but depending on the application it is also sufficient if the tiling is only provided in a section of the jacket 22.
- Fig. 3 shows a block diagram of the antenna 20 according to exemplary embodiments.
- the antenna has a pump 28.
- the pump can pump a fluid, in particular water, out of the antenna 20. Pumping down reduces the pressure in the casing 22 so that the casing can be folded up.
- the fluid can be pumped into the jacket 22 through a fluid channel 30, for example a hose.
- FIG. 3 shows an optional valve 32. Excess fluid can escape from the jacket 22 through the valve 32. This can prevent excess pressure from occurring in the casing 22, which can potentially damage the casing.
- the disclosed (water) sound transducers are designed for use under water, especially in the sea.
- the sound transducers can convert water sound into an electrical signal (e.g. voltage or current) corresponding to the sound pressure, the water sound signal. It is also possible for the sound transducers to convert an applied electrical voltage into water sound.
- the sound transducers can therefore be used as water sound receivers and/or as water sound transmitters.
- the sound transducers can have a piezoelectric material, for example a piezoceramic, as the sensory material.
- the sound transducers can be used for (active and/or passive) sonar (sound navigation and ranging).
- the sound transducers are preferably not suitable for medical applications or are not used for medical applications.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Environmental & Geological Engineering (AREA)
- Oceanography (AREA)
- Multimedia (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022205305.2A DE102022205305B3 (de) | 2022-05-25 | 2022-05-25 | Antenne für den Empfang von Wasserschall |
| PCT/EP2023/063470 WO2023227475A1 (de) | 2022-05-25 | 2023-05-19 | Antenne für den empfang von wasserschall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4533444A1 true EP4533444A1 (de) | 2025-04-09 |
Family
ID=86710841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23729020.0A Pending EP4533444A1 (de) | 2022-05-25 | 2023-05-19 | Antenne für den empfang von wasserschall |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4533444A1 (de) |
| DE (1) | DE102022205305B3 (de) |
| WO (1) | WO2023227475A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102024106889A1 (de) * | 2024-03-11 | 2025-09-11 | Atlas Elektronik Gmbh | Schleppantenne |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5469407A (en) | 1981-06-01 | 1995-11-21 | Lockheed Sanders, Inc. | Parachute array |
| US6910308B2 (en) * | 2003-02-04 | 2005-06-28 | Ilc Dover Lp | Inflatable rigidizable boom |
| US7697374B2 (en) | 2005-10-14 | 2010-04-13 | The Johns Hopkins University | Water inflatable volumetric hydrophone array |
| US7170458B1 (en) * | 2005-07-06 | 2007-01-30 | Avalonrf, Inc. | Inflatable antenna system |
| WO2016007505A1 (en) * | 2014-07-08 | 2016-01-14 | Westerngeco Llc | Multi-dimensional folding seismic sensor array |
| DE102015116750A1 (de) * | 2015-10-02 | 2017-04-06 | Atlas Elektronik Gmbh | Schallwandleranordnung, Schleppsonar, Winde, Schleppschiff und Verfahren zum Ausbringen und/oder Einholen einer Schallwandleranordnung |
| RU2621638C1 (ru) * | 2016-04-15 | 2017-06-06 | Российская Федерация, от имени которой выступает ФОНД ПЕРСПЕКТИВНЫХ ИССЛЕДОВАНИЙ | Способ подводной сейсмической разведки |
| EP4022713A4 (de) * | 2019-08-30 | 2023-08-23 | L'garde, Inc. | Kompaktierbare antenne zur satellitenkommunikation |
-
2022
- 2022-05-25 DE DE102022205305.2A patent/DE102022205305B3/de active Active
-
2023
- 2023-05-19 WO PCT/EP2023/063470 patent/WO2023227475A1/de not_active Ceased
- 2023-05-19 EP EP23729020.0A patent/EP4533444A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102022205305B3 (de) | 2023-11-30 |
| WO2023227475A1 (de) | 2023-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
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| 17P | Request for examination filed |
Effective date: 20250102 |
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| AK | Designated contracting states |
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| RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: TKMS ATLAS ELEKTRONIK GMBH Owner name: THYSSENKRUPP AG |
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| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) |