EP0654953B1 - Arrangement de transducteurs électroacoustiques - Google Patents

Arrangement de transducteurs électroacoustiques Download PDF

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Publication number
EP0654953B1
EP0654953B1 EP94112880A EP94112880A EP0654953B1 EP 0654953 B1 EP0654953 B1 EP 0654953B1 EP 94112880 A EP94112880 A EP 94112880A EP 94112880 A EP94112880 A EP 94112880A EP 0654953 B1 EP0654953 B1 EP 0654953B1
Authority
EP
European Patent Office
Prior art keywords
transducer arrangement
arrangement according
hydrophones
sound
reflector
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.)
Expired - Lifetime
Application number
EP94112880A
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German (de)
English (en)
Other versions
EP0654953A1 (fr
Inventor
Axel Dipl.-Ing. Brenner
Peter Dr.-Phys. Mertens
Wilfried Dipl.-Ing. Meuser
Friedrich Dipl.-Ing. Meyer
Horst Dipl.-Ing. Trense
Friedrich Dipl.-Ing. Weber
Wilfried Dr.-Ing. Wilken
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.)
Atlas Elektronik GmbH
Original Assignee
STN Atlas Elektronik GmbH
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 STN Atlas Elektronik GmbH filed Critical STN Atlas Elektronik GmbH
Publication of EP0654953A1 publication Critical patent/EP0654953A1/fr
Application granted granted Critical
Publication of EP0654953B1 publication Critical patent/EP0654953B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
    • B06B1/0622—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements on one surface
    • B06B1/0633—Cylindrical array
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/44—Special adaptations for subaqueous use, e.g. for hydrophone

Definitions

  • the invention relates to an electroacoustic Transducer arrangement for underwater antennas in the preamble of claim 1 genus.
  • Such a transducer arrangement is known for example from DE-A-3 423 193.
  • Such electroacoustic transducer arrangements in general staves, become passive, acoustic location in the frequency range between 1 and 12 kHz on cylindrical or horseshoe-shaped supports attached and form in their entirety on the carrier a receiving antenna or receiving base, depending on the type Cylinder base or Cylindrical Hydrophone Array (CHA) as well Horseshoe base or conformal array is called. Cylinder bases allow location via one 360 ° panoramic angle, horseshoe bases, at which preferably the carrier formed by the bow of the ship itself a location in a somewhat more restricted sector.
  • Cylinder bases allow location via one 360 ° panoramic angle, horseshoe bases, at which preferably the carrier formed by the bow of the ship itself a location in a somewhat more restricted sector.
  • the hydrophones are the Transducer assemblies or staves individually over the Structure-borne noise decoupling serving decoupling elements attached to a cylindrical steel beam and their Connection lines as insulated cables individually with the Receiving device connected.
  • the Connection cables from, for example, 96 Staves one Cylinder base combined into a wire harness and over a pressure-watertight feed-through to the receiving unit guided.
  • PUR Polyurethane
  • the invention has for its object a To create a transducer arrangement of the type mentioned at the outset, which has a good acoustic forward / backward ratio and the assembly time for producing an underwater antenna with at least unchanged good acoustic Location properties drastically reduced.
  • the task is with an electroacoustic Converter arrangement in the preamble of claim 1 defined genus according to the invention by the features in Characteristic part of claim 1 solved.
  • All hydrophones of the transducer arrangement are hard cast isolated from the aggressive sea water, and it is there is only one position, namely the Plug lead out of the hard casting, on which separate measures to prevent diffusion of water must be made. This simplifies the production with a simultaneous percentage increase the lifespan.
  • the complete dimensionally stable structural unit also opens the Possibility of using the staves in the case of the cylinder base a cylindrical support made of glass fiber reinforced Plastic (GRP) to assemble, which makes a clear Weight reduction of the underwater antenna can be achieved.
  • GRP glass fiber reinforced Plastic
  • the reflector is one across all hydrophones extending soundproof plate, which in another Embodiment of the invention the soft spring of a Spring mass system forms.
  • the mass is from one Metal board formed on the of the hydrophones facing front of the soundproof plate on this is present.
  • the mass of the metal board and the Soundproofness of preferably made of polyurethane foam manufactured plate are matched so that above a predetermined resonance frequency from the front coming useful sound reflected on the hydrophones and from noise coming from behind is shielded.
  • the distance the hydrophone from the metal plate of the spring mass system is chosen so small that no disturbing Interference between direct incidence and from that Reflected on the hydrophones reflected useful sound in the all relevant for the underwater antenna Frequency range occur.
  • the metal plate in sandwich construction from two Metal sheets with an intermediate one bending wave damping layer executed wherein preferably the bending wave damping layer is a film which is glued to the two metal sheets.
  • a such a bending wave damping layer is for example in described in DE 36 21 318 A1.
  • small spherical ceramics are used as hydrophones to maintain an exact tolerance distance from the Reflector before potting with the essentially tough elastic elastomer on a spacer Plastic attached, preferably glued to the the reflector is held in position.
  • the plastic spacer made of the same material manufactured with the same acoustic properties as the hard casting. In this way it is ensured that the Distance of the hydrophones from the reflector in each Transducer arrangement with exact tolerances and reproducible is adhered to.
  • Plugs and mating plugs are for Establishing a pressure-tight electrical connection as Coax connector designed over several sealing rings are plugged onto each other in a watertight manner.
  • Such Coax connectors are for example from DE 37 14 553 A1 known.
  • the hard casting rod shape with a rectangular or square cross-section, with the connector for the hydrophones in the front of the Molded blind hole protrudes.
  • the connector for the hydrophones in the front of the Molded blind hole protrudes.
  • For Attachment of the rods are provided holes that the Completely penetrate the hard casting and the reflector. By pushing through the holes Cap screws are the transducer assemblies on the carrier attached.
  • Fig. 1 The schematically sketched in Fig. 1 in longitudinal section electroacoustic transducer arrangement for a Underwater antenna has a total of three hydrophones 10, which along with one in the direction of sound incidence them arranged reflector 11 in an acoustic transparent hard casting 20 from a casting process processable, essentially tough elastic elastomer are embedded. Polyurethane (PUR) is used as the elastomer used.
  • the hydrophones 10 are small spherical ceramics (Fig. 2) used to make the electrical connection are provided with connecting lines 12.
  • the Connection lines 12 of all three hydrophones 10 are included led to a common connector 13 which in a one end face of the hard casting 20 molded Blind hole 14 protrudes.
  • the one with the plug 13 cooperating mating connector is designated 15 and is when plugged into the plug 13 from the blind hole 14 added.
  • the leading away from the mating connector 15 Connection cable 16 is used to connect the three, here Hydrophones 10 connected in parallel with one not here shown receiving device.
  • Plug 13 and Mating connector 15 are designed as coax connectors.
  • the reflector 11 is a spring mass system made of one mass and a soundproof spring formed, the mass from a metal plate 17 and the soft spring from a soundproof plate, here an elastic one Softboard 18, which is realized on the of the Hydrophones 10 facing away from the back of the metal plate 17th is present.
  • a plate is preferred as the soft material plate 18 made of polyurethane foam, the metal plate 17 is made of aluminum.
  • To suppress disturbing Natural resonance is the metal board 17 in Sandwich construction and consists of two Metal sheets 171 and 172 with an intermediate one bending wave damping layer 19. Such Damping layer is described in DE 36 21 318 A1 and can be used here.
  • Layer 19 is preferred executed as a film and with the two Glued metal sheets 171, 172.
  • the hydrophones 10 are to maintain an exact tolerance distance from the Reflector 11 each on a spacer 21 (Fig. 2) glued.
  • the spacers 21 are on the exact position Reflector 11, on its metal plate 17, fixed, for example by small depressions in the Metal board 17 or by gluing.
  • the Spacers 21 are preferably made of the same material made like the hard casting 20, so made of polyurethane. After pouring the polyurethane into the mold and after the complete transducer arrangement of the Mold can be removed.
  • the hard casting 20 thereby receives preferably a rod shape with a rectangular or square Cross section, on one end of which the blind hole 14 is molded and at the bottom of the blind hole 14 Plug 13 protrudes.
  • two holes 22 (Fig. 1) are provided, the are arranged symmetrically between the hydrophones 10 and the hard casting 20 and the reflector 11 completely penetrate.
  • the metal plate 17 of the Reflector 11 penetrating bore portion 222 a much smaller diameter than that Bore sections 221 and 223, which are on the from the carrier facing away from the hard casting 20 to Metal board 17 of the reflector 10 or on the carrier facing back of the hard casting 20 to And extend through soft plate 18.
  • These bores 22 each receive head screws, by means of which the rod-shaped transducer arrangement on the Carrier is attached.
  • the head of the cap screws lies directly or via structure-borne noise decoupling Intermediate pieces, e.g. B. made of PUR, on the metal plate 17.
  • the direct investment will be made at a 3 preferred, in which the Transducer arrangements on a GRP cylinder as a carrier be screwed on.
  • the structure-borne sound decoupling Intermediate pieces must be used for the direct attachment of the rod-shaped transducer arrangements on the bow of the ship for formation of a conformal array.
  • Fig. 3 an underwater antenna is in perspective shown with a variety of electroacoustic Transducer arrangements, so-called Staves, as described above have been described.
  • Underwater antenna designed as a reception base is as Cylinder base executed, with the individual staves on a cylindrical support 23 made of glass fiber reinforced Plastic (GRP) placed on the outside and over its holes 22 are firmly connected to the carrier 23.
  • the single ones rod-shaped staves are alternately 180 ° rotated against each other so that the connector 13 is adjacent Staves once at the top and once at the bottom of the Carrier 23 lie.
  • the connecting cables 16 out of a total of 96 Staves are half each at the top and bottom of the cylindrical carrier 23 along and each in a connection unit 24 or 25 summarized. Of each Connection unit 24 or 25 carries a multiple cable 26 or 27 to the receiving device, not shown here.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Signal Processing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Claims (13)

  1. Agencement de transducteurs électroacoustiques pour antennes subaquatiques ou sous-marines constitué de plusieurs hydrophones (10) montés sur un support (23) verticalement à équidistance l'un par rapport à l'autre, qui sont pourvus de lignes de connexion (12) pour assurer la connexion électrique, caractérisé en ce que les hydrophones (10) sont noyés, conjointement avec un réflecteur (11) monté derrière eux dans la direction d'incidence des ondes sonores, dans une gaine coulée dure (20) laissant passer les ondes sonores constituée d'un élastomère qui se prête à un procédé de coulée, de préférence en polyuréthanne (PUR), en ce que les lignes de connexion (12) des hydrophones (10) sont regroupées sur une fiche commune (13), qui est accessible sur une face frontale de la gaine coulée dure (20), et en ce qu'il est prévu sur la gaine coulée dure (20) des moyens de fixation sur le support (23).
  2. Agencement de transducteurs selon la revendication 1, caractérisé en ce que le réflecteur (11) présente une plaque flexible sensible aux ondes sonores (18) qui s'étend sur tous les hydrophones (10), de préférence en mousse de polyuréthanne.
  3. Agencement de transducteurs selon la revendication 2, caractérisé en ce que la plaque flexible sensible aux ondes sonores (18) forme le ressort flexible sensible aux ondes sonores d'un système de masse élastique, dont la masse est une platine métallique (17) qui s'appuie sur la face avant de la plaque flexible sensible aux ondes sonores (18) tournée vers les hydrophones (10).
  4. Agencement de transducteurs selon la revendication 3, caractérisé en ce que la masse de la platine métallique (17) et la sensibilité aux ondes sonores de la plaque flexible sensible aux ondes sonores (18) s'ajustent mutuellement de telle sorte qu'au-dessus d'une fréquence de résonance prédéterminée, le son utile venant de l'avant soit réfléchi sur les hydrophones (10) et que le son parasite venant de l'arrière soit supprimé.
  5. Agencement de transducteurs selon la revendication 3 ou 4, caractérisé en ce que la platine métallique (17) est formée sous forme de sandwich de deux tôles métalliques (171, 172) avec une couche intermédiaire (19) amortissant les ondes de flexion.
  6. Agencement de transducteurs selon la revendication 5, caractérisé en ce que la couche (19) amortissant les ondes de flexion (19) est une feuille, ou un film, qui est collée aux deux tôles métalliques (171, 172).
  7. Agencement de transducteurs selon l'une quelconque des revendications 3 à 6, caractérisé en ce que la platine métallique (17) ou les tôles métalliques (171, 172) sont constituées d'aluminium.
  8. Agencement de transducteurs selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'on utilise comme hydrophones (10) des céramiques sphériques qui sont fixées, de préférence collées sur une pièce d'écartement (21) maintenue en position précise sur le réflecteur (11), de préférence en matière plastique, pour maintenir une distance précise par rapport au réflecteur (11).
  9. Agencement de transducteurs selon l'une quelconque des revendications 1 à 8, caractérisé en ce que la fiche (13) fait saillie dans un trou borgne (14) ménagé dans une gaine coulée dure (20) pour recevoir une contre-fiche (15) coopérant avec la fiche (13) et en ce qu'à la base du trou borgne (14) débouche au moins un orifice radial (29) ménagé de la face externe de la gaine coulée dure (20).
  10. Agencement de transducteurs selon l'une quelconque des revendications 1 à 9, caractérisé en ce que la gaine coulée dure (20) présente une forme de barre ayant une coupe transversale rectangulaire ou carrée.
  11. Agencement de transducteurs selon l'une quelconque des revendications 1 à 10, caractérisé en ce que les moyens de fixation sur le support (23) présentent des orifices traversant la gaine coulée dure (20) et le réflecteur (11).
  12. Agencement de transducteurs selon l'une quelconque des revendications 3 à 10 et la revendication 11, caractérisé en ce que la section d'orifice (221) s'étendant de la face avant de la gaine coulée dure (20) opposée au support (23) à la platine métallique (17) du réflecteur (11) présente un diamètre sensiblement plus grand que celui de la section d'orifice (222) traversant la platine métallique (17).
  13. Agencement de transducteurs selon l'une quelconque des revendications 1 à 12, caractérisé par sa fixation sur un support cylindrique (23) en matière plastique renforcée de fibres de verre.
EP94112880A 1993-11-23 1994-08-18 Arrangement de transducteurs électroacoustiques Expired - Lifetime EP0654953B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4339798 1993-11-23
DE4339798A DE4339798A1 (de) 1993-11-23 1993-11-23 Elektroakustische Wandleranordnung

Publications (2)

Publication Number Publication Date
EP0654953A1 EP0654953A1 (fr) 1995-05-24
EP0654953B1 true EP0654953B1 (fr) 1999-05-06

Family

ID=6503169

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94112880A Expired - Lifetime EP0654953B1 (fr) 1993-11-23 1994-08-18 Arrangement de transducteurs électroacoustiques

Country Status (4)

Country Link
US (1) US5499219A (fr)
EP (1) EP0654953B1 (fr)
DE (2) DE4339798A1 (fr)
NO (1) NO308689B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006060795B3 (de) * 2006-12-21 2007-12-13 Atlas Elektronik Gmbh Unterwasserantenne
EP2469507A1 (fr) 2010-12-23 2012-06-27 ATLAS Elektronik GmbH Antenne acoustique sous-marine, sous-marin doté d'une telle antenne et procédé de relevé, de positionnement et/ou de classification d'une cible à l'aide d'une telle antenne

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19612503C2 (de) * 1996-03-29 1998-01-29 Stn Atlas Elektronik Gmbh Elektroakustischer Wandlermodul
US6441799B2 (en) * 1999-05-14 2002-08-27 Tiger Concealment, Inc. Polyurethane foam concealment panel
FR2823571B1 (fr) * 2001-04-12 2003-10-17 Thomson Marconi Sonar Sas Colonne acoustique et antenne cylindrique pour sonar passif utilisant une telle colonne
FR2833450B1 (fr) * 2001-12-07 2004-11-19 Thales Sa Antenne acoustique a grande puissance d'emission
DE10323493B3 (de) * 2003-05-23 2004-07-15 Atlas Elektronik Gmbh Unterwasserantenne
US7180828B1 (en) * 2004-04-22 2007-02-20 The United States Of America As Represented By The Secretary Of The Navy Non-kinking oil-filled acoustic sensor stave
DE102004038032A1 (de) * 2004-08-05 2006-02-23 Atlas Elektronik Gmbh Elektroakustische Wandleranordnung für Unterwasserantennen
DE102004038033B3 (de) * 2004-08-05 2005-10-13 Atlas Elektronik Gmbh Verfahren zur Herstellung einer Antennensektion einer Unterwasserantenne und Antennensektion für eine flächenhafte Unterwasserantenne
DE102004037987A1 (de) * 2004-08-05 2006-02-23 Atlas Elektronik Gmbh Elektroakustische Unterwasserantenne
DE102004062128B8 (de) * 2004-12-23 2012-10-18 Atlas Elektronik Gmbh Elektroakustischer Wandler und dessen Verwendung
DE102007053801B3 (de) 2007-11-12 2008-12-11 Atlas Elektronik Gmbh Unterwasserantenne
DE102008052355A1 (de) 2008-10-20 2010-04-22 Atlas Elektronik Gmbh Unterwasserantenne
DE102008052354A1 (de) 2008-10-20 2010-04-22 Atlas Elektronik Gmbh Unterwasserantenne
DE102008064002A1 (de) 2008-12-19 2010-06-24 Atlas Elektronik Gmbh Unterwasserantenne
DE102009018624B3 (de) * 2009-04-23 2010-11-04 Atlas Elektronik Gmbh Elektroakustische Unterwasserantenne
CN106644043B (zh) * 2016-12-14 2019-08-23 中国船舶重工集团公司第七一0研究所 一种水雷模块化嵌入式圆柱共形声基阵
US11079506B2 (en) 2016-12-16 2021-08-03 Pgs Geophysical As Multicomponent streamer
DE102019212636A1 (de) * 2019-08-23 2021-02-25 Atlas Elektronik Gmbh Ortungssignalempfänger zur Bestimmung einer Schallpulsabbildung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS607296A (ja) * 1983-06-24 1985-01-16 Furuno Electric Co Ltd 水中探知用超音波送受波器
DE3444424A1 (de) * 1984-12-06 1991-11-07 Krupp Gmbh Wandleranordnung fuer unterwasserantennen
DE3621318A1 (de) * 1986-06-26 1988-01-07 Krupp Gmbh Daempfungsschicht
DE3714553A1 (de) * 1987-04-30 1988-11-10 Dunkel Otto Gmbh Druckwasserdichte steckkontaktverbindung
DE3744282A1 (de) * 1987-12-28 1989-07-13 Krupp Atlas Elektronik Gmbh Wandler
DE3942588A1 (de) * 1989-12-22 1991-06-27 Krupp Atlas Elektronik Gmbh Verfahren und vorrichtung zum ausgleichen von empfindlichkeitsstreuungen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006060795B3 (de) * 2006-12-21 2007-12-13 Atlas Elektronik Gmbh Unterwasserantenne
EP2469507A1 (fr) 2010-12-23 2012-06-27 ATLAS Elektronik GmbH Antenne acoustique sous-marine, sous-marin doté d'une telle antenne et procédé de relevé, de positionnement et/ou de classification d'une cible à l'aide d'une telle antenne
DE102010056119A1 (de) 2010-12-23 2012-06-28 Atlas Elektronik Gmbh Akustische Unterwasserantenne, U-Boot mit derartiger Antenne sowie Verfahren zum Peilen, Orten und/oder Klassifizieren eines Ziels mittels einer derartigen Antenne

Also Published As

Publication number Publication date
DE59408210D1 (de) 1999-06-10
NO943365L (no) 1995-05-24
US5499219A (en) 1996-03-12
NO308689B1 (no) 2000-10-09
DE4339798A1 (de) 1995-05-24
EP0654953A1 (fr) 1995-05-24
NO943365D0 (no) 1994-09-12

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