WO2014117767A1 - Signal sonore sous-marin, émetteur ou récepteur sous-marin, sonar sous-marin, véhicule sous-marin et complément d'équipement - Google Patents

Signal sonore sous-marin, émetteur ou récepteur sous-marin, sonar sous-marin, véhicule sous-marin et complément d'équipement Download PDF

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Publication number
WO2014117767A1
WO2014117767A1 PCT/DE2014/100000 DE2014100000W WO2014117767A1 WO 2014117767 A1 WO2014117767 A1 WO 2014117767A1 DE 2014100000 W DE2014100000 W DE 2014100000W WO 2014117767 A1 WO2014117767 A1 WO 2014117767A1
Authority
WO
WIPO (PCT)
Prior art keywords
underwater
transmitter
receiver
sound signal
angle
Prior art date
Application number
PCT/DE2014/100000
Other languages
German (de)
English (en)
Inventor
Nils Theuerkauf
Original Assignee
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 Atlas Elektronik Gmbh filed Critical Atlas Elektronik Gmbh
Priority to EP14703520.8A priority Critical patent/EP2951610A1/fr
Publication of WO2014117767A1 publication Critical patent/WO2014117767A1/fr

Links

Classifications

    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/491—Details of non-pulse systems
    • G01S7/4911—Transmitters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/491—Details of non-pulse systems
    • G01S7/4912—Receivers
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
    • G10K11/341—Circuits therefor
    • G10K11/346—Circuits therefor using phase variation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
    • G10K11/341—Circuits therefor
    • G10K11/348—Circuits therefor using amplitude variation

Definitions

  • the invention relates to an underwater sound signal which has a first time difference and / or a first intensity difference along a first radiation angle and an underwater transmitter or receiver, and an underwater sonar
  • Underwater vehicle a watercraft and a retrofit kit.
  • the object of the invention is to improve the disadvantages of the prior art.
  • the transmitter can be made in smaller designs, as cooling and
  • Energy supply can be dimensioned smaller or designed. In addition, a lower cooling capacity is necessary. Also under the same energy supply underwater sound signals can be sent over a longer period of time than in the prior art. In particular, the transmission power can be reduced by up to 80%.
  • the receivers can be used with high sensitivity in order to be able to detect objects that are far away, while at the same time highly-sensitive reflected signals from the near range can be measured.
  • Underwater sound signals includes, which are used in a sonar (sound navigation and ranging). Underwater ultrasound signals in the range from 10 kHz to 1000 kHz are particularly preferred. Present underwater sound signals are generated in particular by means of piezoceramics under water.
  • a "runtime difference" includes both a delayed and a premature emission with respect to an unaffected underwater sound signal.
  • Both the intensity difference and the delay difference can be selected via the aperture of the antenna angle-dependent so that they are adapted to the task. In particular, you can
  • Intensity difference and time difference are adapted to the angle-dependent seabed removal.
  • the aperture of the antenna designates the free, active opening through which the sound waves are sent or received.
  • An "angle of radiation" can be described in particular by a mathematical line angle, which in turn can be described by a mathematical angular measure Alternatively, the line angle can be called a one-dimensional angle Degrees between 0 ° and 360 ° and assume a value between Ogon and 400gon in the geodesic angle measure.
  • the emission angle extends in particular along the aperture.
  • Imprinting involves a technical influence on the underwater sound signal, which results in a corresponding difference in transit time and / or an intensity difference compared to an uninfluenced signal, which can occur during the actual transmission as well as at the reception This can be done, in particular, by passing an already emitted signal first through water, then passing it through diffraction to layers of different thicknesses or different acoustic impedance before it reaches the actual signal Receiver reached.
  • the underwater scarf signal has a second transit time difference and / or a second intensity difference along a second emission angle, wherein the first emission angle and the second emission angle are not parallel to one another such that the first emission angle and the second emission angle form a solid angle, the second transit time difference and / or the second
  • an underwater sound signal can be provided which is suitable to scan areal areas.
  • Orthogonality of the first and second emission angles includes, for example, an emitted cone of sound .Furthermore, non-parallelism comprises both perpendicular line angles and other angles.
  • the "solid angle” describes in particular the size of a spatial area, which is spanned by a conical shell.
  • one of the emission angles can have a value between 0 ° and 360 °, in particular between 0 ° and 180 ° or between 0 ° and 90 ° or between 10 ° and 80 ° , Even smaller angles, for example, between 20 ° and 40 ° can be realized.
  • the angle value of 0 ° to 360 ° can be achieved, for example, by a signal emitted by a piezoceramic ball or a piezoceramic ring. Even with small distances from each other spaced transmission elements can fill such radiation angle, it is harmless that small areas are recessed. Small distances in this context include values from 1 mm to values of a few centimeters, depending in particular on the transmission wavelength. Roughly, the higher the transmission frequency the smaller the distance can be selected (eg 1000kHz corresponds to approx. 1mm distance).
  • the imprinting of the running time difference and / or the intensity difference takes place by means of a damping element and / or by means of a transmitter and / or receiver geometry and / or by means of an electronic circuit.
  • a “damping element” comprises a material which has a different velocity of propagation for sound than water, thus allowing both “decelerations” and “accelerations.”
  • Propagation direction of the water sound have different thicknesses, through which the underwater sound signal can be modeled technically.
  • the imprinting by means of a "transmitter and / or receiver geometry" is effected, for example, by arranging several individual underwater sound transmitters not flat, but curved relative to one another Level differing structure are included.
  • Electrodes Single transmitter or individual receiver are so controlled electronically that they premature or delayed sending or receiving to neighboring individual transmitters or receivers.
  • the object is achieved by an underwater transmitter or an underwater receiver, which emits or receives a previously described underwater sound signal.
  • an underwater transmitter having a better range, lower volume reverberation, lower surface echo, lower multipath, lower transmission power, less cooling, lower power consumption, and a smaller size can be provided.
  • the object can be achieved by an underwater transmitter or an underwater receiver, wherein the underwater transmitter or the underwater receiver is set up such that the underwater transmitter or the Underwater receiver an underwater sound signal actively and / or passively a first time difference and / or a first intensity difference along a first radiation angle and / or that the underwater transmitter or underwater receiver the underwater sound signal actively and / or passively imposes a second delay difference or a second intensity difference along a second radiation angle.
  • This underwater transmitter or underwater receiver also has the advantages of the above-described underwater transmitter or underwater receiver.
  • the underwater transmitter has two or more subsenders and / or the underwater receiver has two or more sub-receivers.
  • Underwater sound signal a time difference or an intensity difference can be impressed. It is particularly advantageous that any desired time differences and intensity differences can be realized.
  • the intensity and / or transit time can be impressed on the transmitter or receiver as a function of a distance of a seabed to be examined.
  • the subsenders include both (piezo) ceramic filaments as well as planar (piezo) ceramic elements or arranged on a curved path (piezo) ceramic elements.
  • the active impingement can take place electronically.
  • individual subscribers or sub-receivers can prematurely and / or late send or receive a sound signal.
  • the big advantage in this case is in particular that an adaptation of the existing sonar to a system according to the invention can be easily implemented by a software update.
  • the passive imposition is effected by a geometric arrangement of the underwater transmitter and / or by a geometric arrangement of the underwater receiver and / or by a damping element.
  • the object is achieved by an underwater sonar, which has a previously described underwater transmitter and / or a previously described underwater receiver.
  • the object is achieved by an underwater vehicle which has a previously described Underwater transmitter and / or a previously described underwater receiver and / or a previously described underwater sonar has.
  • the "underwater vehicle” includes both submarines (remotely controlled, autonomous, with and without crew) as well as buoys, torpedoes, or towing sonars.
  • the object is achieved by a watercraft which has a previously described underwater transmitter and / or a previously described underwater receiver and / or a previously described underwater sonar and / or a previously described underwater vehicle.
  • Watercraft as used herein includes all ships, platforms or other objects moving or lingering on the water.
  • the object can be achieved by a retrofit kit for retrofitting a sonar, wherein the retrofit kit emitted by a sonar or received underwater sound signal a first time difference and / or a first intensity difference along a first angle of radiation and / or that the underwater transmitter or underwater receiver the underwater sound signal a second transit time difference and / or a second intensity difference along a second
  • retrofit kit In a related form of expression of the retrofit kit is designed passive and / or active. Thus, alternative retrofit sets can be provided.
  • Figure 1 is a highly schematic representation of a
  • FIG. 2 shows a highly schematic representation of a conventional, flat underwater sound transmitter
  • FIG. 3 shows a highly schematic illustration of a curved underwater sound transmitter with several sub-underwater sounders
  • Figure 4 is a schematic representation of a
  • Figure 5 is a graphical representation of a
  • Figure 6 is a schematic representation of an under
  • Underwater sounder 101 has a first
  • Underwater sounder 101 a variety of
  • Ceramic filaments 105 which are arranged on a carrier layer 103.
  • the ceramic filaments 105 are made of piezoceramics, which are driven with a voltage perform a change in space, whereby a water column is impressed underwater sound signal.
  • the ceramic filaments 105 are juxtaposed and filled by means of a resin. Subsequently, the ceramic block is cured and then enclosed with
  • Ceramic filaments 105 machined by means of a milling cutter. By the cutter, a defined surface, such as a curved surface, the ceramic block is impressed.
  • the present first underwater sounder 101 is used differently. On the one hand, all ceramic filaments 105 are simultaneously subjected to voltage. Due to the different position of the Keramikfilêt 1 05 an underwater sound signal corresponding to the surface profile is emitted.
  • Another alternative is to coat each individual ceramic filament individually. By corresponding earlier or later BeSlten a desired waveform with a corresponding desired signal intensity and or with an angle-dependent delay and / or intensity difference can be provided.
  • a second underwater sounder 2 0 1 with flat, flat ceramic plates 2 05 configured.
  • the ceramic plates 2 05 are spaced from each other (not shown).
  • the geometric arrangement is the simultaneous activation of the piezoceramics 3 05 the Underwater sound signal imprinted on a runtime difference.
  • the individual piezoceramics 305 are connected in such a way that different intensities are emitted in different directions.
  • a delay difference and / or an intensity difference can be impressed on a subsonic sound signal by time-delayed activation or by different activation.
  • Each of the alternative underwater sounders 101, 201, 301 described above can be used in a sidescan sonar.
  • this side scan sonar 411 the bottom of the sea is scanned 415 on the left and 413 on the right.
  • the scanned areas 413, 415 have a spacing 421, with the left area 415 having a width 418 and the right area 413 having a width 417.
  • the seabed can be scanned over a total width of 423 and over a covered distance of 419.
  • a sidescan sonar 611 with one of the previous underwater sounders 101, 201, 301 is below one Water surface 650 and arranged above the seabed.
  • the distance 652 to the seabed is 10m, this can be less in shallow water and more in deep water.
  • the wiring is as follows.
  • the transmitted signals are modeled such that substantially similar intensities of intensity of the reflected sound signals are received at the side scan sonar 611.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

Pour pouvoir détecter des objets à des grandes distances, en particulier à l'aide d'un sonar à balayage latéral, des grandes intensités sont émises par rapport à la pression sonore sous l'eau de sorte que le signal réfléchi par des objets très éloignés est parfaitement détectable. Cette façon de faire présente certains inconvénients. Pour pouvoir atteindre la pression sonore élevée, des sources d'énergie puissantes comme des batteries sont nécessaires. De plus, des signaux (parasites) sont également réfléchis sur la surface de l'eau. En outre, les réflexions d'objets proches sont fortes si bien que la sensibilité des microphones sous-marins doit être réduite. L'invention concerne par conséquent un signal sonore sous-marin qui présente une première différence de durée de parcours et/ou une première différence d'intensité le long d'un premier angle de rayonnement, la première différence de durée de parcours et/ou la première différence d'intensité étant imprimées au signal sonore sous-marin et ceci ayant lieu en particulier lors d'une émission ou d'une réception.
PCT/DE2014/100000 2013-01-29 2014-01-03 Signal sonore sous-marin, émetteur ou récepteur sous-marin, sonar sous-marin, véhicule sous-marin et complément d'équipement WO2014117767A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14703520.8A EP2951610A1 (fr) 2013-01-29 2014-01-03 Signal sonore sous-marin, émetteur ou récepteur sous-marin, sonar sous-marin, véhicule sous-marin et complément d'équipement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013100894.1A DE102013100894A1 (de) 2013-01-29 2013-01-29 Unterwasserschallsignal, Unterwassersender oder Unterwasserempfänger, Unterwassersonar, Unterwasserfahrzeug und Nachrüstsatz
DE102013100894.1 2013-01-29

Publications (1)

Publication Number Publication Date
WO2014117767A1 true WO2014117767A1 (fr) 2014-08-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2014/100000 WO2014117767A1 (fr) 2013-01-29 2014-01-03 Signal sonore sous-marin, émetteur ou récepteur sous-marin, sonar sous-marin, véhicule sous-marin et complément d'équipement

Country Status (3)

Country Link
EP (1) EP2951610A1 (fr)
DE (1) DE102013100894A1 (fr)
WO (1) WO2014117767A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992000584A1 (fr) * 1990-06-29 1992-01-09 Heriot-Watt University Procede et appareil d'imagerie holographique et acoustique utilisës dans des equipements de telemesure acoustique marins et autres
WO1998015846A1 (fr) * 1996-10-07 1998-04-16 Rowe-Deines Instruments, Incorporated Transducteur de reseau bidimensionnel et formeur de faisceau

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977889C (de) * 1961-05-13 1972-03-09 Bundesrep Deutschland Anordnung zur Erzeugung einer ebenen Welle fuer Sonarortung
US3618006A (en) * 1966-06-13 1971-11-02 Boeing Co Flush-mounted transducer array sonar system
DE19704940C1 (de) * 1997-02-10 1998-01-22 Stn Atlas Elektronik Gmbh Akustische Linsen- oder Prismavorrichtung
US20110319768A1 (en) * 2009-03-04 2011-12-29 Panasonic Corporation Ultrasonic transducer, ultrasonic probe, and ultrasonic diagnostic device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992000584A1 (fr) * 1990-06-29 1992-01-09 Heriot-Watt University Procede et appareil d'imagerie holographique et acoustique utilisës dans des equipements de telemesure acoustique marins et autres
WO1998015846A1 (fr) * 1996-10-07 1998-04-16 Rowe-Deines Instruments, Incorporated Transducteur de reseau bidimensionnel et formeur de faisceau

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
L3 COMMUNICATIONS ET AL: "Multibeam Sonar Theory of Operation L-", 1 January 2000 (2000-01-01), pages 1 - 107, XP055114216, Retrieved from the Internet <URL:http://www.ldeo.columbia.edu/res/pi/MB-System/sonarfunction/SeaBeamMultibeamTheoryOperation.pdf> [retrieved on 20140415] *

Also Published As

Publication number Publication date
DE102013100894A1 (de) 2014-07-31
EP2951610A1 (fr) 2015-12-09

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