EP0475834A1 - Magnetisches Minenräumsystem - Google Patents

Magnetisches Minenräumsystem Download PDF

Info

Publication number
EP0475834A1
EP0475834A1 EP91402405A EP91402405A EP0475834A1 EP 0475834 A1 EP0475834 A1 EP 0475834A1 EP 91402405 A EP91402405 A EP 91402405A EP 91402405 A EP91402405 A EP 91402405A EP 0475834 A1 EP0475834 A1 EP 0475834A1
Authority
EP
European Patent Office
Prior art keywords
magnetic
dredging system
vehicles
vehicle
induction coil
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.)
Granted
Application number
EP91402405A
Other languages
English (en)
French (fr)
Other versions
EP0475834B1 (de
Inventor
Joel Certenais
Albert Tom
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Publication of EP0475834A1 publication Critical patent/EP0475834A1/de
Application granted granted Critical
Publication of EP0475834B1 publication Critical patent/EP0475834B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • B63G7/00—Mine-sweeping; Vessels characterised thereby
    • B63G7/02—Mine-sweeping means, Means for destroying mines
    • B63G7/06—Mine-sweeping means, Means for destroying mines of electromagnetic type

Definitions

  • the field of the invention is that of magnetic dredging systems which make it possible to destroy underwater mines, the triggering of which is activated by variations in the magnetic field due to a sinking ship.
  • the invention relates to a magnetic dredging system comprising a dredger towing a device for simulating the magnetic field of a ship with determined characteristics.
  • a magnetic dredging system is already known for which the extent of dredging (INTERCEPT) is preferred.
  • the magnetic dredging system comprises a dredger towing by a rope a device for simulating the magnetic field of a ship of determined characteristics, the minesweeper being studied to bring a minimum of magnetic disturbances.
  • the simulation device comprises several vehicles distributed in parallel in the direction of advance of the dredger over the extent of the dredging. Each vehicle includes a solenoid and a flat horizontal coil to simulate the passage of a ship. The simulation of the magnetic field of the ship is facilitated by the fact that the solenoid and the coil are supplied by variable currents.
  • the object of the invention is to overcome this drawback and in particular an essential objective of the invention is to allow the simulation with very high precision of the magnetic field of most ships regardless of their dimensions and in particular their length.
  • the magnetic dredging system is characterized in that the simulation device comprises a set of vehicles for each providing orthogonal magnetic fields, the vehicles being arranged in line in the direction of advance of the dredger and supplied separately by electric currents, the intensities of which are determined automatically by a control means essentially on the basis of parameters representative of the characteristics of the aforementioned ship to be simulated.
  • a certain number of vehicles are deployed distributed along a line each simulating a portion of the magnetic field of the ship.
  • the magnetic dredging system comprises two induction coils arranged orthogonally.
  • the simulation device according to the invention takes into account not only the length of the ship but also its height.
  • the magnetic dredging system comprises a minesweeping vessel 100 towing at the end of a rope 110 a set of magnetic vehicles 110 arranged in line in the direction of advancement of the dredging vessel .
  • Magnetic vehicles are interconnected by cables with regular spacings between each of them.
  • the number of magnetic vehicles 110 connected in series depends, as has been specified previously, on the ship whose magnetic field or magnetic signature is to be simulated, this magnetic signature being a function of the length, speed and height of water of the last.
  • the length defined by the chain of magnetic vehicles is marked by buoyancy buoys 135 placed at the two ends of the chain of magnetic vehicles. The buoys 135 also make it possible to adjust the level of immersion of the magnetic vehicles 110.
  • the length of the rope connecting all of the magnetic vehicles 110 to the dredging vessel 100 is approximately 200 meters in order to avoid any confusion between the residual magnetic field of the dredger and that of vehicles and to prevent the dredger from being hit by the explosion mines when they are triggered by magnetic vehicles.
  • the magnetic vehicles 110 are supplied separately by electric currents, supplied by a power unit 126 supplied by a current supply 121 located on board the dredger 100, to each supply orthogonal magnetic fields.
  • the control electronics 120 determine, for each magnetic vehicle 110 considered, the intensity of the electric current to be applied thereto from a calibration made beforehand taking into account the speed of use of the simulation device and the distance between the magnetic vehicles 110. Also shown in this figure is a winch system 122 connected to the power supply 121 making it possible to electrically adjust the length of the rope 130.
  • a magnetic vehicle 110 comprises two induction coils 140, 150 arranged orthogonally supplied with current by the power unit 126 via the cord 130 and the cables.
  • the first vertical induction coil 140 is placed inside a circular ferrule 145 whose axis, in the position of use of the simulation device, is substantially parallel to the direction of advance of the dredger ship 100.
  • the circular ferrule 145 surrounds the second induction coil 150 whose shape is substantially rectangular.
  • the second induction coil 150 is placed in a fairing 155 so as to provide the magnetic vehicle 110 with a relatively low coefficient of penetration into water, for example less than 0.3.
  • the circular ferrule 145 is connected to the fairing 155 by radial fins and comprises a keel 160, disposed under the lower plane of the fairing 155, to stabilize the magnetic vehicle 110 by roll.
  • the magnetic vehicle 110 has, during its use as shown in FIG. 1, zero buoyancy obtained by the balancing of balloons 170 arranged inside the fairing 155. Provision is advantageously made on each magnetic vehicle 110 for generating means. underwater pulses called "PINGER" 180 to easily locate it in case it detaches from the rope 130.
  • the induction coils 140, 150 are formed from a wound conductor, for example an aluminum conductor and are placed in sealed containers filled with dielectric oil.
  • a wound conductor for example an aluminum conductor and are placed in sealed containers filled with dielectric oil.
  • the use of aluminum makes it possible to reduce the mass of the vehicle without appreciable reduction in the magnetic moment thereof.
  • the electrical signals establishing the intensities of the currents to be passed through the induction coils 140, 150 of each magnetic vehicle 110 are automatically supplied by the control electronics 120.
  • the control electronics 120 has in memory the values of the intensities for a certain number of ships whose magnetic signature is sought to simulate. These intensity values are obtained by varying all of these parameters until a good reproduction of the signature of the ship to be simulated is obtained by knowing the magnetic signature of each magnetic vehicle 110 and the magnetic signature of the ship considered.
  • the operator of the magnetic dredging system provides via a data entry terminal connected to the control electronics 120 shown in FIG. 2: target parameters, dredging speed, water height.
  • the target parameters are: its number from a given list, its speed, its magnetic state (demagnetized or non-demagnetized).
  • control electronics 120 automatically supply the minimum number of vehicles necessary and deliver the electrical control signals to the power unit 126.
  • each vehicle in a simulation device comprising six magnetic vehicles 110 25 meters apart, this example being non-limiting, are given below:
  • Second induction coil 150

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Traffic Control Systems (AREA)
  • Geophysics And Detection Of Objects (AREA)
EP19910402405 1990-09-11 1991-09-10 Magnetisches Minenräumsystem Expired - Lifetime EP0475834B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9011203 1990-09-11
FR9011203A FR2666559B1 (fr) 1990-09-11 1990-09-11 Systeme de dragage magnetique.

Publications (2)

Publication Number Publication Date
EP0475834A1 true EP0475834A1 (de) 1992-03-18
EP0475834B1 EP0475834B1 (de) 1994-12-21

Family

ID=9400220

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910402405 Expired - Lifetime EP0475834B1 (de) 1990-09-11 1991-09-10 Magnetisches Minenräumsystem

Country Status (4)

Country Link
EP (1) EP0475834B1 (de)
JP (1) JPH0624381A (de)
DE (1) DE69106090T2 (de)
FR (1) FR2666559B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7658149B2 (en) 2002-12-18 2010-02-09 Commonwealth Of Australia Minesweeping device
WO2014060185A1 (fr) * 2012-10-18 2014-04-24 Thales Dispositif pour enrouler et derouler un cable autour d'un tambour

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07297735A (ja) * 1994-04-27 1995-11-10 Pioneer Electron Corp 多重放送受信方法及び受信機
JPH09172705A (ja) 1995-12-15 1997-06-30 Denso Corp 車両用駆動装置
JP5597421B2 (ja) * 2010-03-23 2014-10-01 東芝三菱電機産業システム株式会社 磁気制御装置及び方法
GB2550376B (en) * 2016-05-17 2018-07-11 Thales Holdings Uk Plc Magnetic phase transition exploitation for enhancement of electromagnets
DE102018217211A1 (de) * 2018-10-09 2020-04-09 Siemens Aktiengesellschaft Drohne zur Auslösung von Seeminen mit elektrischem Antrieb
DE102019212105A1 (de) 2019-08-13 2021-02-18 Siemens Aktiengesellschaft Betriebsverfahren für ein Minenräumsystem und Minenräumsystem zur Auslösung von Seeminen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3266833A (en) * 1960-11-30 1966-08-16 Harold J Mack Release mechanism
WO1985000335A1 (en) * 1983-07-04 1985-01-31 The Secretary Of State For Defence In Her Britanni Improvements in or relating to magnetic assemblies
EP0338901A1 (de) * 1988-04-19 1989-10-25 Thomson-Csf Magnetisches Minenräumungssystem
US4917946A (en) * 1987-02-27 1990-04-17 Her Majesty the Queen as represented by the Minister of National Defence in Her Majesty's Canadian Governmenmt Low magnetic signature products and method
EP0364126A1 (de) * 1988-10-13 1990-04-18 The Marconi Company Limited Gerät zur Simulierung der magnetischen Feld-Zeit-Charakteristik
EP0366522A1 (de) * 1988-10-24 1990-05-02 Thomson-Csf Magnetisches Minenräumungssystem

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3266833A (en) * 1960-11-30 1966-08-16 Harold J Mack Release mechanism
WO1985000335A1 (en) * 1983-07-04 1985-01-31 The Secretary Of State For Defence In Her Britanni Improvements in or relating to magnetic assemblies
US4917946A (en) * 1987-02-27 1990-04-17 Her Majesty the Queen as represented by the Minister of National Defence in Her Majesty's Canadian Governmenmt Low magnetic signature products and method
EP0338901A1 (de) * 1988-04-19 1989-10-25 Thomson-Csf Magnetisches Minenräumungssystem
EP0364126A1 (de) * 1988-10-13 1990-04-18 The Marconi Company Limited Gerät zur Simulierung der magnetischen Feld-Zeit-Charakteristik
EP0366522A1 (de) * 1988-10-24 1990-05-02 Thomson-Csf Magnetisches Minenräumungssystem

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7658149B2 (en) 2002-12-18 2010-02-09 Commonwealth Of Australia Minesweeping device
US8006620B2 (en) 2002-12-18 2011-08-30 The Commonwealth Of Australia Minesweeping device
WO2014060185A1 (fr) * 2012-10-18 2014-04-24 Thales Dispositif pour enrouler et derouler un cable autour d'un tambour
FR2997063A1 (fr) * 2012-10-18 2014-04-25 Thales Sa Dispositif pour enrouler et derouler un cable autour d'un tambour
US10023280B2 (en) 2012-10-18 2018-07-17 Thales Device for winding and unwinding a cable around a drum

Also Published As

Publication number Publication date
DE69106090T2 (de) 1995-05-04
JPH0624381A (ja) 1994-02-01
EP0475834B1 (de) 1994-12-21
FR2666559B1 (fr) 1995-07-21
FR2666559A1 (fr) 1992-03-13
DE69106090D1 (de) 1995-02-02

Similar Documents

Publication Publication Date Title
FR2654521A1 (fr) Source electromagnetique de puits a demeure.
EP0475834A1 (de) Magnetisches Minenräumsystem
EP1373933B1 (de) Geschlepptes niederfrequenz-unterwasserdetektionssystem
EP0217712B1 (de) Entmagnetisierungsanlage, insbesondere für Schiffe
FR2807584A1 (fr) Methode et dispositif d'emission d'ondes elastiques radiales dans un milieu materiel par induction electromagnetique
FR2569847A1 (fr) Dispositif de detection et de localisation d'entree d'eau pour flute marine
EP0125180B1 (de) Vorrichtung zur Fernräumung von Minen mit magnetischer Entzündung
EP0597014B1 (de) Tragbare station zur messung und regelung der magnetischen unterschrift eines wasserfahrzeuges
Miessner Radiodynamics: the wireless control of torpedoes and other mechanisms
FR2635378A1 (fr) Lance-projectiles a commande par induction
EP0338901A1 (de) Magnetisches Minenräumungssystem
FR2689249A1 (fr) Procédé et appareil radar de déception.
FR2611917A1 (fr) Dispositif pour l'interruption temporaire du deplacement d'equipements de prospection geophysique en milieu sous-marin, entraines par un support naval a deplacement continu
EP0366522B1 (de) Magnetisches Minenräumungssystem
EP0623506B1 (de) Verfahren zur automatischen Kompensation des Remanenz-Magnetismus einer ferromagnetischen Minenräumanlage
FR2902194A1 (fr) Dispositif et procedes associes de mesure de la signature magnetique d'un bateau
EP0206879B1 (de) Breitfrequenzbandiger Magnetfelddetektor
EP0901959A1 (de) Verfahren zur Minimierung des magnetischen Unterschriftes eines Wasserfahrzeuges
FR2468889A1 (fr) Indicateur de valeur limite pour des liquides
FR2704065A1 (fr) Dispositif de mesure de la signature magnétique d'un bâtiment naval et son application au réglage de l'immunisation magnétique.
EP0649784B2 (de) Ausbildungsverfahren für das Minensuchen
EP0699614A1 (de) Verfahren und Vorrichtung zum Überwachen des Abwickelns einer Spule
WO2013017753A1 (fr) Dispositif de mesure, dans un plan prédéfini, du positionnement d'un matériel déposé au fond de l'eau et procédé associé
FR2585841A1 (fr) Dispositif de mesure d'un courant continu
Marshall Some notes on mines and mine sweeping

Legal Events

Date Code Title Description
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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE GB IT NL

17P Request for examination filed

Effective date: 19920624

17Q First examination report despatched

Effective date: 19931118

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: THOMSON-CSF

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE GB IT NL

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 69106090

Country of ref document: DE

Date of ref document: 19950202

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950112

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20020828

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20030910

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20030918

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20031203

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040401

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20040401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040910

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040930

BERE Be: lapsed

Owner name: *THOMSON-CSF

Effective date: 20040930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050401

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20040910

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050910

BERE Be: lapsed

Owner name: *THOMSON-CSF

Effective date: 20040930