EP3713832A1 - Schleppkabel zum schleppen im wasser, schleppantenne und wasserfahrzeug - Google Patents
Schleppkabel zum schleppen im wasser, schleppantenne und wasserfahrzeugInfo
- Publication number
- EP3713832A1 EP3713832A1 EP18803594.3A EP18803594A EP3713832A1 EP 3713832 A1 EP3713832 A1 EP 3713832A1 EP 18803594 A EP18803594 A EP 18803594A EP 3713832 A1 EP3713832 A1 EP 3713832A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cable
- trailing
- surface structure
- towing
- structure element
- 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.)
- Withdrawn
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000009413 insulation Methods 0.000 claims abstract description 5
- 239000004033 plastic Substances 0.000 claims description 10
- 229920003023 plastic Polymers 0.000 claims description 10
- 230000000295 complement effect Effects 0.000 claims description 2
- 238000007373 indentation Methods 0.000 abstract 1
- 239000004760 aramid Substances 0.000 description 8
- 229920003235 aromatic polyamide Polymers 0.000 description 8
- 239000004020 conductor Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 239000003381 stabilizer Substances 0.000 description 5
- 239000004952 Polyamide Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 206010000496 acne Diseases 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/56—Towing or pushing equipment
- B63B21/66—Equipment specially adapted for towing underwater objects or vessels, e.g. fairings for tow-cables
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B5/00—Making ropes or cables from special materials or of particular form
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B5/00—Making ropes or cables from special materials or of particular form
- D07B5/005—Making ropes or cables from special materials or of particular form characterised by their outer shape or surface properties
- D07B5/006—Making ropes or cables from special materials or of particular form characterised by their outer shape or surface properties by the properties of an outer surface polymeric coating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/10—Influencing flow of fluids around bodies of solid material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/20—Arrangements of receiving elements, e.g. geophone pattern
- G01V1/201—Constructional details of seismic cables, e.g. streamers
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
- H01B7/045—Flexible cables, conductors, or cords, e.g. trailing cables attached to marine objects, e.g. buoys, diving equipment, aquatic probes, marine towline
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
- D07B1/147—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising electric conductors or elements for information transfer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/14—Submarine cables
- H01B7/145—Submarine cables associated with hydrodynamic bodies
Definitions
- the invention relates to a towing cable for towing in the water, wherein the tow cable has a cable core for transmitting a tensile force, an energy and / or information and a cable sheath for insulation. Furthermore, the invention relates to a towed antenna for towing in the water and a watercraft for towing a towed antenna.
- traction cables, traction cables and / or trailing antennas usually have flow resistance-optimized stabilizers (so-called hard and soft fairings) in order to reduce twisting, vibration and drag of the cable, cable and / or towed antenna. This allows a greater depth for the given cable, rope and / or the predefined towed antenna in the water to be set.
- a disadvantage of using the known hard and / or solid stabilizers is that they can not be wound in a plurality of layers on a drum aboard a ship, damaged by the tensile force of the cable when wound up and when deploying the cable and / or the towed antenna a certain deflection angle from the drum is needed. Consequently, cables with hard fairings require a special, complex drum design.
- the soft and / or flexible (soft fairings) stabilizers are in danger of being damaged when winding the cable on a drum in multiple layers. For these reasons, both hard and soft fairings only have a limited service life, so that damaged stabilizers must be laboriously replaced or the entire towing cable and / or the towed antenna must be replaced.
- a trailing cable for towing in the water wherein the trailing cable has a cable core for transmitting a tensile force, energy and / or information and a cable sheath for insulation, wherein the trailing cable ver a cohesively ver to the cable sheath - Bound surface structure element and the surface structure element has a protrusion and / or a depression with respect to an outer diameter of the cable sheath free of the surface structure element has, so that a twisting, vibration and / or drag of the trailing cable is reduced.
- a tow cable is provided which is easily wound and unwound on a drum of a winch on board without damage to the surface structure element.
- no specific deflection angle is necessary for winding and unwinding and no special drum design.
- the surface structure element is connected to the cable sheath in a materially bonded manner, an improved optimization of the flow resistance of the trailing cable can be realized since there is a homogeneous transition between the cable sheath and the surface structure element without an attachment means arranged therebetween. Since the surface structural element does not have to be fastened separately to the cable, the risk of the cable catching and / or twisting on the surface structural element is reduced.
- the production of the trailing cable is simplified because the cohesive connection makes it possible to dispense with separate production of the surface structural element and the cable sheath and can be manufactured in one operation.
- An essential idea of the invention is based on the fact that a surface structure element is already materially bonded to the cable sheath during cable production and free of resistance from the surface structure element as a result of an elevation and / or depression of the surface structure element with respect to an outer diameter of the cable sheath - mated stabilizer twisting, vibration and / or a pull of the cable is reduced.
- a "tow cable” is in particular a cable for hauling an object in the water.
- a towing cable may in particular also be a pull cable and / or a pull cable.
- a tow cable in particular by train, initiates or maintains a mechanical process.
- a tow cable transmits the traction of a ship to a towed body to be towed by the water and / or a towed antenna to be towed by the water.
- a tow cable may be an electrical and / or optical cable.
- a "cable core” is used in particular for transmitting a tractive force, energy and / or information.
- a cable core has, in particular, a reinforcement, for example an aramid braiding, and / or a single or multi-core composite of wires (individual line), the latter serving to transmit energy and / or information.
- a cable core has an optical conductor, such as an optical waveguide, and / or an electrical conductor.
- An electrical conductor has in particular copper, aluminum or a copper alloy.
- a "cable sheath” is in particular a layer on the outside around the cable core.
- the cable sheath is used in particular for the insulation and / or shielding of the cable core and the protection of the trailing cable against external influences.
- the cable sheath has in particular plastics such as polyolefins, polyurethane, polyamides, polyvinyl chloride, polystyrenes, polytetrafluoroethylene (PTFE) and / or silicone.
- a "surface structure element” is, in particular, a geometric structure which is materially connected to and / or connected to the cable jacket in order to achieve targeted flow guidance around the towing cable and / or the towed antenna.
- the pull through the towing cable and / or the towed antenna is reduced by the surface structure element, so that a greater water depth and / or speed can be set for a given towing cable and / or a predefined towed antenna.
- vortex shedding on the surface structure element reduces turbulences, vibrations and / or the self-resonance of the towing cable and / or the towed antenna.
- the surface structure element has at least one elevation and / or at least one depression with respect to the outer diameter of the cable sheath without the elevation and / or depression.
- a surface structural element is, for example, an elongated elevation, which is guided spirally on the cable sheath around the longitudinal axis of the trailing cable.
- a surface structure element has in particular a groove or a plurality of grooves, a nub or a plurality of nubs, a circular shape and / or a tire profile.
- connection means that the connection between the surface structure element and the cable sheath is held together in particular by atomic and / or molecular forces.
- the cohesive connection is in particular not solvable without the connection being destroyed. In particular, a high transferability of forces and moments is made possible by the integral connection.
- An "outer diameter" of the cable sheath is in particular the distance between the center of the cable and the outer edge of the cable sheath.
- a "twisting” is in particular a twisting and / or a helical winding of the trailing cable and / or the
- a "vibration” is in particular a periodic, mostly medium to high frequency and low amplitude mechanical oscillation of a towing cable and / or a towed antenna.
- a vibration also includes the natural resonance and / or natural frequency with which the trailing cable and / or the trailing antenna oscillate as their own form after a single excitation.
- a "train” is, in particular, a force of the towing cable and / or the towed antenna, which, when towed by the towing cable and / or the towed antenna, is set against a pulling force, for example, by a towed ship.
- a train is in particular a flow resistance of the towing cable and / or the towed antenna as the force which is opposed to the towing movement.
- a "pulling force” is in particular a force that pulls on a body.
- the traction is in particular the force, which at a
- the surface-area structural element has a plurality of elevations and / or a plurality of depressions.
- a plurality of elevations and / or several depressions can be arranged and / or distributed in a targeted manner over the cross section and / or the length of the trailing cable for optimizing the flow.
- the plurality of elevations and / or multiple depressions can be executed individually and / or connected.
- the elevations and / or depressions are regularly or irregularly formed and / or arranged.
- the elevations may have different heights (as a distance from the outer diameter of the cable sheath fei of the sacrificen Selfele- ment to the outer edge of the respective survey) and / or different widths and the wells have different depths and / or widths.
- the elevations and / or depressions may be arranged uniformly or irregularly relative to one another and / or over the cross section and / or the length of the towing cable.
- the surface structure element is designed along the trailing cable.
- the surface structure element can be adapted to the length of the towing cable and / or to a desired flow guidance along this length.
- the elevation or the elevations and / or the depression or depressions are or are embodied spirally along the trailing cable.
- "Spiral" also helical means in particular that the elevation and / or elevations and / or the depression and / or depressions are or are guided in a curve which runs around the longitudinal axis of the towed antenna.
- the curve winds in particular with a constant slope or a variable slope around the cable sheath and / or the longitudinal axis of the trailing cable.
- the surface structural element and the cable sheath are integrally formed, wherein the surface structure element is complementary or alternatively designed to the cable sheath.
- the surface structure element and the cable sheath are present as a single piece and / or part.
- the surface structure element at the same time also forms the cable sheath. Consequently, the surface structural element and the cable sheath can be manufactured in one work step.
- the surface structure element and / or the cable jacket has or have an extrudable plastic.
- both the surface structure element and the cable sheath can be manufactured by extrusion.
- the surface structure element and the cable sheath can be extruded separately, for example by first extruding the cable sheath and then extruding the surface structure element onto the still warm sheath.
- the surface structure element and the cable sheath can be extruded simultaneously in an extrusion head.
- the same plastic and / or different plastics are used for the extrusion of the surface structural element and the Jardinmantels. As a result, the production can be carried out in one operation at the same and / or similar temperatures.
- extruable plastic is meant, in particular, a plastic which is pressed as a molding compound through a molding die to form an extruded molding.
- the extrudable plastic is pressed into a surface structure element and / or a cable sheath, wherein the cable core is sheathed and / or coated.
- An extrudable plastic is in particular the above-mentioned plastics from which a cable sheath can be made.
- the tow cable has a towed body.
- the orientation and / or depth of the towing cable and / or a towed antenna in the water can additionally be adjusted by means of the towed body.
- a tow cable can be aligned substantially vertically in the water by means of a towed body.
- the active part of a towing vehicle can be arranged in the towed body.
- a "towed body” is a body which is towed in the water in combination with a tow cable and / or several trailing cables and / or a towed antenna.
- a towed body may be arranged between two trailing cables and / or as an end fin of a trailing antenna.
- a towed body may for example be hollow, have the active part of a towed sonar and / or be filled with a ballast weight.
- a towed body in particular has a specific shape for guiding the flow.
- the object is achieved by a towed antenna for towing in the water, the towed antenna having a previously described tow cable.
- a flow resistance optimized, low-twist and low-vibration towed antenna is provided. It is particularly advantageous that a higher water depth of the towed antenna can be adjusted due to the trailing cable profiled in accordance with the invention.
- the towed antenna can be easily removed and introduced by means of a winch and stored on board a ship, since the towed antenna can be wound up and / or unwound in several layers without damage to the surface structural element.
- the object is achieved by a watercraft for towing a towed antenna in the water, wherein the watercraft has a previously described trailing cable and / or a towed antenna described above.
- a watercraft is provided with which a towing cable and / or a towed antenna with a flow-optimized surface structural element can be wound up and unwound free of damage and thus discharged into the water and / or retrieved on board ,
- a "watercraft” is a vehicle that can travel in particular on the water, in the water and / or under water.
- Watercraft may be, for example, a tug and / or a submarine.
- Figure 1 is a schematic cross-sectional view of a
- Figure 2 is a schematic cross-sectional view of a
- Figure 3 is a schematic cross-sectional view of a
- Figure 4 is a schematic, not to scale representation of a towed ship with a winch, two trailing cables and a towed antenna.
- a tow cable 101 has a cable core 103 as an electrical conductor and an aramid mesh 105 associated with the cable core 103 for reinforcing and ensuring tensile strength.
- the Aramidgeflecht 105 is surrounded by an integrally running cable sheath 107 with a flow element 113.
- the flow element 113 protrudes on one side beyond the cable jacket outer diameter 109, which is present without the flow element 113.
- the one-piece cable sheath 107 with the cohesively connected flow element 113 is produced by extrusion in a production step by pressing polyurethane through a molding die.
- a tow cable 201 has a cable core 203 with four electrical conductors 211 inside the cable core. Externally, the cable core 203 has an aramid mesh 205 for reinforcement. The cable core 203 with the aramid mesh 205 is surrounded by a cable sheath 207. On the cable sheath 207 outside six studs 213 are evenly arranged wel each represent an increase relative to a Lucasmantelau type trimmesser 209 free of the nubs 213.
- the cable sheath 207 is made of polyamide, wherein at the same time the knobs 213 are applied from polyethylene and cohesively bonded to the polyamide of the cable sheath 207 by coextrusion.
- a tow cable 301 has a cable core 303 with an externally disposed aramid braid 305 and four electrical conductors 311 disposed inside.
- the cable core 303 with the Aramidgeflecht 305 is surrounded by a cable sheath 307, which is made in one piece and regularly distributed four elevations 313, each having a therebetween Neten recess 315 has.
- the four recesses 315 lie within a cable jacket outer diameter 309 without an elevation and without a recess, and the four elevations 313 lie outside of this outer cable jacket diameter 309.
- the cable sheath 307 with the elevations 313 and the recesses 315 has been manufactured directly by extrusion by pressing polyurethane through a single molding.
- a tugboat 121 travels on a water surface 123 and has a winch 125 at a stern.
- the trailing cable 101 is arranged as a first trailing cable, which has a plurality of flow elements 113.
- a towed body 127 is arranged, on which in turn the trailing cable 201 is arranged as a second trailing cable.
- the trailing cable 201 hangs a towed antenna 129, which has a plurality of hydrophones 131.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Ocean & Marine Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Oceanography (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017127558.4A DE102017127558A1 (de) | 2017-11-22 | 2017-11-22 | Schleppkabel zum Schleppen im Wasser, Schleppantenne und Wasserfahrzeug |
| PCT/EP2018/080602 WO2019101534A1 (de) | 2017-11-22 | 2018-11-08 | Schleppkabel zum schleppen im wasser, schleppantenne und wasserfahrzeug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3713832A1 true EP3713832A1 (de) | 2020-09-30 |
Family
ID=64316506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18803594.3A Withdrawn EP3713832A1 (de) | 2017-11-22 | 2018-11-08 | Schleppkabel zum schleppen im wasser, schleppantenne und wasserfahrzeug |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3713832A1 (de) |
| DE (1) | DE102017127558A1 (de) |
| WO (1) | WO2019101534A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020106275A1 (de) * | 2020-03-09 | 2021-09-09 | Rwe Renewables Gmbh | Seekabel für Verlegung auf Gewässerboden |
| DE102023124176A1 (de) * | 2023-09-07 | 2025-03-13 | Atlas Elektronik Gmbh | Vorrichtung zur Messung einer Kraft auf ein Zugmittel einer Schleppantennenanordnung |
| CN118025437B (zh) * | 2024-03-05 | 2024-10-22 | 华中科技大学 | 一种拖曳型无人帆船的航速和拖曳角计算方法和系统 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4984218A (en) * | 1990-04-26 | 1991-01-08 | Mobil Oil Corporation | Marine acoustic array configured for tow noise reduction |
| US5214244A (en) * | 1988-10-28 | 1993-05-25 | Science Applications International Corporation | Strumming resistant cable |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3884173A (en) * | 1974-07-12 | 1975-05-20 | Us Navy | Suppression of cable strumming vibration by a ridged cable jacket |
| US4190012A (en) * | 1976-05-27 | 1980-02-26 | The United States Of America As Represented By The Secretary Of The Navy | Faired tow cable with stubs for strum reduction |
| DE3477912D1 (en) * | 1983-09-13 | 1989-06-01 | Univ Bath | Fairing sections |
| US5275120A (en) * | 1992-09-23 | 1994-01-04 | The United States Of America As Represented By The Secretary Of The Navy | Strum-suppressant cable for towed arrays |
| US20020062778A1 (en) * | 2000-11-29 | 2002-05-30 | Barker Glen P. | Dimpled marine seismic cables |
| US6415730B1 (en) * | 2000-11-29 | 2002-07-09 | Westerngeco L.L.C. | Dimpled marine seismic fairing |
| CA2508216A1 (en) * | 2005-04-14 | 2006-10-14 | Sercel, Inc. | Solid flooding compound for marine seismic cable |
-
2017
- 2017-11-22 DE DE102017127558.4A patent/DE102017127558A1/de not_active Withdrawn
-
2018
- 2018-11-08 EP EP18803594.3A patent/EP3713832A1/de not_active Withdrawn
- 2018-11-08 WO PCT/EP2018/080602 patent/WO2019101534A1/de not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5214244A (en) * | 1988-10-28 | 1993-05-25 | Science Applications International Corporation | Strumming resistant cable |
| US4984218A (en) * | 1990-04-26 | 1991-01-08 | Mobil Oil Corporation | Marine acoustic array configured for tow noise reduction |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO2019101534A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019101534A1 (de) | 2019-05-31 |
| DE102017127558A1 (de) | 2019-05-23 |
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