EP1794536A1 - Device for protecting a military or civilian vehicle against mines with magnetic detection - Google Patents

Device for protecting a military or civilian vehicle against mines with magnetic detection

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Publication number
EP1794536A1
EP1794536A1 EP05775315A EP05775315A EP1794536A1 EP 1794536 A1 EP1794536 A1 EP 1794536A1 EP 05775315 A EP05775315 A EP 05775315A EP 05775315 A EP05775315 A EP 05775315A EP 1794536 A1 EP1794536 A1 EP 1794536A1
Authority
EP
European Patent Office
Prior art keywords
vehicle
magnetic field
magnetic
mines
loop
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Withdrawn
Application number
EP05775315A
Other languages
German (de)
French (fr)
Inventor
Sylvain Carlier
Benoît Pizon
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.)
Nexter Systems SA
Original Assignee
Nexter Systems 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 Nexter Systems SA filed Critical Nexter Systems SA
Publication of EP1794536A1 publication Critical patent/EP1794536A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/007—Reactive armour; Dynamic armour
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H11/00—Defence installations; Defence devices
    • F41H11/12—Means for clearing land minefields; Systems specially adapted for detection of landmines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H7/00—Armoured or armed vehicles
    • F41H7/02—Land vehicles with enclosing armour, e.g. tanks
    • F41H7/04—Armour construction
    • F41H7/042—Floors or base plates for increased land mine protection

Definitions

  • the technical sector of the present invention is that of devices for protecting a land vehicle, and more particularly protection devices against mines with magnetic detection.
  • mines in conflicts are now widespread and is an inexpensive, easy-to-use and particularly destructive means, particularly to protect a demarcated area or hinder the progress of an army.
  • the mine is therefore an omnipresent and insidious threat constituting in most conflicts one of the first factors of human and material losses.
  • the threat posed by mines is very diverse. There are two main types of mines depending on the targeted target (personnel or vehicles) which themselves group distinct families according to the mode of aggression. In the field of vehicle-related mines, it is particularly possible to distinguish different types of triggering devices. The most common are pressure, tilt, wire, magnetic detector, seismic detector or infra-red detector triggers.
  • the object of the present invention is to provide an effective device for protecting a vehicle against mines with magnetic detection, lightweight, compact, simple and inexpensive, capable of integrating into an already existing structure and allowing cancel, or at least greatly reduce, the magnetic signature of the vehicle to make it undetectable by magnetic detection mines.
  • the subject of the invention is therefore a mine protection device for a land vehicle, characterized in that it comprises a metal plate disposed under the vehicle in order to normalize the magnetic field generated by the vehicle and / or its elements and to the at least one loop disposed under the metal plate and made of an electrically conductive material connected to a power supply to generate a magnetic field of substantially equal value and • of opposite sign to the magnetic field from the vehicle to make said vehicle undetectable by mines with magnetic detection .
  • the device also comprises a computer cooperating with a modulator in order to modulate the electric current flowing in the at least one loop as a function of the variation of the vehicle's own magnetic field, of its position, of the variation of the magnetic fields generated. by its elements or the magnetic field resulting from the vehicle equipped with said device.
  • the device comprises position sensors for determining the position of the vehicle and in particular its position and / or its orientation with respect to the earth's magnetic field.
  • the device comprises magnetic field sensors for measuring the magnetic field resulting from the vehicle equipped with said device.
  • the plate is a steel plate with a thickness of between 1 and 100 mm.
  • the device comprises several loops powered by different electric currents in order to generate several superimposed magnetic fields.
  • a first advantage of the device according to the invention lies in the fact that it prevents the explosion of mines with magnetic detection, thus avoiding damage to the vehicle but also possible injuries to the vehicle crew.
  • Another advantage lies in the fact that it prevents the explosion of magnetic detection mines, thus avoiding the location of the vehicle.
  • Another advantage lies in the fact that it is compact and can be easily installed in addition to an already existing structure.
  • Another advantage lies in the compatibility of the device with other passive protection devices and in particular the protection devices against blast mines.
  • Another advantage lies in the possibility of achieving a near-field feedback.
  • FIG. 1 schematically represents a vehicle equipped with a device according to the invention
  • FIG. 1 shows a vehicle 1, for example a wheeled military vehicle, equipped with a device 2 according to the invention.
  • the mine protection system at magnetic detection is here in the form of a box comprising a metal plate arranged horizontally under the vehicle body 1 and an electric cable 5 disposed under the metal plate and forming a substantially horizontal loop and surface substantially equal to the surface located between the wheels 11 of the vehicle 1 or slightly lower.
  • the electric cable 5 is connected to a power supply 6 in order to generate a magnetic field.
  • a modulator 8 connected to a computer 7 makes it possible to vary the current flowing through the electric cable 5 and therefore the magnetic field created.
  • the operation of the device is as follows:
  • the vehicle 1, because of its metal mass and its various elements (engine, trim, etc.) generates a non-uniform magnetic field capable of triggering mines with magnetic detection. It is therefore sought to standardize this magnetic field and then cancel it, or at least decrease it strongly, in order to make said vehicle undetectable by magnetic detection mines.
  • the plate 4 is made of a magnetic material, for example a steel sheet, in order to standardize the magnetic field generated by the vehicle 1 and / or by its elements.
  • the loop 5 made of an electrically conductive material (here a cable) a current is circulated so as to generate a magnetic field of substantially equal value and opposite sign to the magnetic field from the vehicle 1.
  • the role of the calculator 7 is then determining the characteristics of the current to be applied according to data such as the position of the vehicle relative to the earth's magnetic field or the magnetic field values recorded either between the vehicle body and the loop 5, or downstream of the device.
  • data such as the position of the vehicle relative to the earth's magnetic field or the magnetic field values recorded either between the vehicle body and the loop 5, or downstream of the device.
  • the detectors already present on the vehicle sensors of terrestrial magnetic field, GPS, ...) or integrate sensors with the device (for example position sensors allowing to know the position of the vehicle and in particular its position and / or orientation with respect to the Earth's magnetic field, or magnetic field sensors for measuring the magnetic field resulting from the vehicle equipped with said device).
  • FIG. 2 diagrammatically represents an embodiment variant of the invention in which the device comprises two loops 5a and 5b of electric cable.
  • the currents flowing through these two loops are generated by the power supply 6 and modulated by the modulator 8 but remain independent with respect to each other.
  • the magnetic field generated by the device is equal to the sum of the magnetic fields generated by each loop.
  • the computer 7 decomposes the magnetic field to be generated in two fields respectively applied by each loop and drives the modulator to supply each loop as a function of the magnetic field to be generated.
  • this device When mounting the device on a vehicle already having an anti-mine protection in the form of metal reinforcements, it may advantageously use these reinforcements to replace the metal plate. Similarly, this device may advantageously be disposed inside a non-magnetic protective casing, for example a box of composite materials or aluminum.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

The invention concerns a device for protecting land vehicle against mines with magnetic detection. The device comprises a metal plate (4) for normalizing the magnetic field derived from the vehicle (1) or one of its components, at least one loop (5) made of an electrically conductive material connected to an electric power supply (6) to generate a magnetic field of intensity substantially equal and of opposite sign to the magnetic field derived from the vehicle (1). The device also comprises a calculator (7) co-operating with a modulator (8) to modulate the electric current flowing in at least one loop based on the variation of the magnetic field from the vehicle, in its position, on the variation of the magnetic fields generated by its components or on the magnetic field resulting from the vehicle equipped with said device.

Description

DISPOSITIF DE PROTECTION DE VEHICULE MILITAIRE OU CIVIL FACE AUX MINES A DETECTION MAGNETIQUEDEVICE FOR PROTECTING A MILITARY OR CIVIL VEHICLE AGAINST MAGNETIC DETECTION MINES
Le secteur technique de la présente invention est celui des dispositifs de protection d'un véhicule terrestre, et plus particulièrement des dispositifs de protection contre les mines à détection magnétique.The technical sector of the present invention is that of devices for protecting a land vehicle, and more particularly protection devices against mines with magnetic detection.
L'utilisation de mines lors de conflits est aujourd'hui largement répandue et constitue un moyen peu onéreux, simple d'utilisation et particulièrement destructeur, notamment pour protéger une zone délimitée ou entraver la progression d'une armée. La mine constitue donc une menace omniprésente et sournoise constituant dans la plupart des conflits un des premiers facteurs de pertes humaines et matérielles. La menace que constituent les mines est très diversifiée. On distingue deux grands types de mines en fonction de la cible visée (personnels ou véhicules) qui eux-mêmes regroupent des familles distinctes en fonction du mode d'agression. Dans le domaine des mines visant des véhicules, on peut particulièrement distinguer différents types de dispositifs de déclenchement. Les plus courants sont des déclenchements à pression, à basculement, à fil, à détecteur magnétique, à détecteur sismique ou à détecteur infra-rouge.The use of mines in conflicts is now widespread and is an inexpensive, easy-to-use and particularly destructive means, particularly to protect a demarcated area or hinder the progress of an army. The mine is therefore an omnipresent and insidious threat constituting in most conflicts one of the first factors of human and material losses. The threat posed by mines is very diverse. There are two main types of mines depending on the targeted target (personnel or vehicles) which themselves group distinct families according to the mode of aggression. In the field of vehicle-related mines, it is particularly possible to distinguish different types of triggering devices. The most common are pressure, tilt, wire, magnetic detector, seismic detector or infra-red detector triggers.
Il est primordial pour les véhicules susceptibles de circuler dans des terrains minés, en particulier les véhicules militaires ou les véhicules de déminage, de se protéger contre ces mines et plus particulièrement contre les mines à détecteur magnétique qui sont de plus en plus fréquemment utilisées. Une solution consiste à augmenter la protection du véhicule en augmentant l'épaisseur du plancher des véhicules, en disposant sous la caisse du véhicule un caisson en matériau à haut pouvoir de déformation ou en profilant le bas de caisse du véhicule afin de dévier le souffle d'explosion mais ces solutions augmentent considérablement la masse du véhicule. De plus, aussi efficaces qu'elles soient, de telles protections protègent le véhicule contre une première explosion mais ne peuvent le protéger contre des explosions successives. De plus l'explosion d'une mine révèle la présence du véhicule qui est alors facilement localisé par 1' ennemi.It is essential for vehicles likely to circulate in minefields, especially military vehicles or demining vehicles, to protect themselves against these mines and more particularly against the mines with magnetic detector which are more and more frequently used. One solution is to increase the protection of the vehicle by increasing the thickness of the floor of vehicles, by placing under the vehicle body a box of high deformation material or by profiling the underside of the vehicle to deflect the breath of explosion but these solutions considerably increase the mass of the vehicle. In addition, as effective as they are, such protections protect the vehicle against a first explosion but can not protect against explosions successive. In addition, the explosion of a mine reveals the presence of the vehicle which is then easily located by the enemy.
Une autre solution consiste à utiliser des matériaux amagnétiques pour la réalisation du véhicule, mais de tels matériaux sont particulièrement onéreux. De plus certains éléments du véhicule, par exemple le moteur, ne peuvent être réalisés à l'aide de tels matériaux.Another solution is to use non-magnetic materials for the realization of the vehicle, but such materials are particularly expensive. In addition, certain elements of the vehicle, for example the engine, can not be made using such materials.
Le but de la présente invention est de fournir un dispositif efficace de protection d'un véhicule contre les mines à détection magnétique, léger, peu encombrant, de réalisation simple et peu onéreuse, susceptible de s'intégrer dans une structure déjà existante et permettant d'annuler, ou tout au moins de diminuer fortement, la signature magnétique du véhicule afin de le rendre indétectable par les mines à détection magnétique.The object of the present invention is to provide an effective device for protecting a vehicle against mines with magnetic detection, lightweight, compact, simple and inexpensive, capable of integrating into an already existing structure and allowing cancel, or at least greatly reduce, the magnetic signature of the vehicle to make it undetectable by magnetic detection mines.
L'invention a donc pour objet un dispositif de protection contre les mines pour véhicule terrestre, caractérisé en ce qu'il comporte une plaque métallique disposée sous le véhicule afin de normaliser le champ magnétique généré par le véhicule et/ou par ses éléments et au moins une boucle disposées sous la plaque métallique et réalisée en un matériau conducteur électrique connectée à une alimentation électrique afin de générer un champ magnétique de valeur sensiblement égale et • de signe opposé au champ magnétique issu du véhicule afin de rendre ledit véhicule indétectables par des mines à détection magnétique..The subject of the invention is therefore a mine protection device for a land vehicle, characterized in that it comprises a metal plate disposed under the vehicle in order to normalize the magnetic field generated by the vehicle and / or its elements and to the at least one loop disposed under the metal plate and made of an electrically conductive material connected to a power supply to generate a magnetic field of substantially equal value and • of opposite sign to the magnetic field from the vehicle to make said vehicle undetectable by mines with magnetic detection ..
Selon une caractéristique, le dispositif comporte également un calculateur coopérant avec un modulateur afin de moduler le courant électrique circulant dans la au moins une boucle en fonction de la variation du champ magnétique propre au véhicule, de sa position, de la variation des champs magnétiques générés par ses éléments ou du champ magnétique résultant du véhicule équipé dudit dispositif. Selon une autre caractéristique, le dispositif comporte des capteurs de position permettant de déterminer la position du véhicule et notamment sa position et/ou son orientation par rapport au champ magnétique terrestre. Selon encore une autre caractéristique, le dispositif comporte des capteurs de champ magnétique permettant de mesurer le champ magnétique résultant du véhicule équipé dudit dispositif. Selon une autre caractéristique, la plaque est une plaque en acier d'épaisseur comprise entre 1 et 100 mm.According to one characteristic, the device also comprises a computer cooperating with a modulator in order to modulate the electric current flowing in the at least one loop as a function of the variation of the vehicle's own magnetic field, of its position, of the variation of the magnetic fields generated. by its elements or the magnetic field resulting from the vehicle equipped with said device. According to another characteristic, the device comprises position sensors for determining the position of the vehicle and in particular its position and / or its orientation with respect to the earth's magnetic field. According to yet another characteristic, the device comprises magnetic field sensors for measuring the magnetic field resulting from the vehicle equipped with said device. According to another characteristic, the plate is a steel plate with a thickness of between 1 and 100 mm.
Selon une autre caractéristique, le dispositif comporte plusieurs boucles alimentées par des courants électriques différents afin de générer plusieurs champs magnétiques superposés.According to another characteristic, the device comprises several loops powered by different electric currents in order to generate several superimposed magnetic fields.
Un tout premier avantage du dispositif selon l'invention réside dans le fait qu'il permet d'éviter l'explosion des mines à détection magnétique, évitant ainsi les dommages occasionnés au véhicule mais également d'éventuelles blessures de l'équipage du véhicule.A first advantage of the device according to the invention lies in the fact that it prevents the explosion of mines with magnetic detection, thus avoiding damage to the vehicle but also possible injuries to the vehicle crew.
Un autre avantage réside dans le fait qu'il permet d'éviter l'explosion des mines à détection magnétique, évitant ainsi la localisation du véhicule.Another advantage lies in the fact that it prevents the explosion of magnetic detection mines, thus avoiding the location of the vehicle.
Un autre avantage réside dans le fait qu'il est peu encombrant et peut être facilement être installé en complément d'une structure déjà existante.Another advantage lies in the fact that it is compact and can be easily installed in addition to an already existing structure.
Un autre avantage réside dans la compatibilité du dispositif avec des d'autres dispositifs de protection passive et notamment les dispositifs de protection contre les mines à effet de souffle.Another advantage lies in the compatibility of the device with other passive protection devices and in particular the protection devices against blast mines.
Un autre avantage réside dans la possibilité de réaliser un contre réaction en champ proche.Another advantage lies in the possibility of achieving a near-field feedback.
D'autres caractéristiques, détails et avantages de l'invention ressortiront plus clairement de la description donnée ci-après à titre indicatif en relation avec des dessins dans lesquels : la figure 1 représente schématiquement un véhicule équipé d'un dispositif selon l'invention etOther characteristics, details and advantages of the invention will emerge more clearly from the description given below as an indication in relation to drawings in which: FIG. 1 schematically represents a vehicle equipped with a device according to the invention and
- la figure 2 représente schématiquement une variante de réalisation de l'invention.- Figure 2 shows schematically an alternative embodiment of the invention.
La figure 1 représente un véhicule 1, par exemple un véhicule militaire à roues, équipé d'un dispositif 2 selon l'invention. Le dispositif de protection contre les mines à détection magnétique se présente ici sous la forme d'un caisson comportant une plaque métallique disposée horizontalement sous la caisse du véhicule 1 et d'un câble électrique 5 disposé sous la plaque métallique et formant une boucle sensiblement horizontale et de surface sensiblement égale à la surface située entre les roues 11 du véhicule 1 ou légèrement inférieure. Le câble électrique 5 est connecté à une alimentation électrique 6 afin de générer un champ magnétique. Un modulateur 8 relié à un calculateur 7 permet de faire varier le courant parcourant le câble électrique 5 et donc le champ magnétique créé.FIG. 1 shows a vehicle 1, for example a wheeled military vehicle, equipped with a device 2 according to the invention. The mine protection system at magnetic detection is here in the form of a box comprising a metal plate arranged horizontally under the vehicle body 1 and an electric cable 5 disposed under the metal plate and forming a substantially horizontal loop and surface substantially equal to the surface located between the wheels 11 of the vehicle 1 or slightly lower. The electric cable 5 is connected to a power supply 6 in order to generate a magnetic field. A modulator 8 connected to a computer 7 makes it possible to vary the current flowing through the electric cable 5 and therefore the magnetic field created.
Le fonctionnement du dispositif est le suivant : Le véhicule 1, du fait de sa masse métallique et de ses différents éléments (moteur, habillage, etc.) génère un champ magnétique non uniforme susceptible de déclencher des mines à détection magnétique. On cherche donc à uniformiser ce champ magnétique puis à l'annuler, ou au moins à le diminuer fortement, afin de rendre ledit véhicule indétectables par des mines à détection magnétique. La plaque 4 est réalisée en un matériau magnétique, par exemple une tôle en acier, afin d'uniformiser le champ magnétique généré par le véhicule 1 et/ou par ses éléments. Dans la boucle 5 réalisée en un matériau conducteur électrique (ici un câble) on fait circuler un courant de sorte à générer un champ magnétique de valeur sensiblement égale et de signe opposé au champ magnétique issu du véhicule 1. Le rôle du calculateur 7 est alors de déterminer les caractéristiques du courant à appliquer en fonction de données telles que la position du véhicule par rapport au champ magnétique terrestre ou les valeurs de champs magnétiques relevés soit entre la caisse du véhicule et la boucle 5, soit en aval du dispositif. Pour connaître ces différentes données, on pourra utiliser les détecteurs déjà présents sur le véhicule (capteurs de champ magnétique terrestre, GPS,...) ou intégrer des capteurs au dispositif (par exemple des capteurs de position permettant de connaître la position du véhicule et notamment sa position et/ou son orientation par rapport au champ magnétique terrestre, ou des capteurs de champ magnétique permettant de mesurer le champ magnétique résultant du véhicule équipé dudit dispositif) .The operation of the device is as follows: The vehicle 1, because of its metal mass and its various elements (engine, trim, etc.) generates a non-uniform magnetic field capable of triggering mines with magnetic detection. It is therefore sought to standardize this magnetic field and then cancel it, or at least decrease it strongly, in order to make said vehicle undetectable by magnetic detection mines. The plate 4 is made of a magnetic material, for example a steel sheet, in order to standardize the magnetic field generated by the vehicle 1 and / or by its elements. In the loop 5 made of an electrically conductive material (here a cable) a current is circulated so as to generate a magnetic field of substantially equal value and opposite sign to the magnetic field from the vehicle 1. The role of the calculator 7 is then determining the characteristics of the current to be applied according to data such as the position of the vehicle relative to the earth's magnetic field or the magnetic field values recorded either between the vehicle body and the loop 5, or downstream of the device. To know these different data, one can use the detectors already present on the vehicle (sensors of terrestrial magnetic field, GPS, ...) or integrate sensors with the device (for example position sensors allowing to know the position of the vehicle and in particular its position and / or orientation with respect to the Earth's magnetic field, or magnetic field sensors for measuring the magnetic field resulting from the vehicle equipped with said device).
La figure 2 représente schématiquement une variante de réalisation de l'invention dans laquelle le dispositif comporte deux boucles 5a et 5b de câble électrique. Les courants parcourant ces deux boucles sont générés par l'alimentation électrique 6 et modulés par le modulateur 8 mais restent indépendants l'un par rapport à l'autre. Le champ magnétique généré par le dispositif est égal à la somme des champs magnétiques générés par chaque boucle. Dans cette variante de réalisation, le calculateur 7 décompose le champ magnétique à générer en deux champs respectivement appliqués par chaque boucle et pilote le modulateur afin d'alimenter chaque boucle en fonction du champ magnétique à générer. D'une manière plus générale, on pourra réaliser l'invention avec une multitude de boucles afin de générer un champ magnétique exactement opposé à celui du véhicule et susceptible ainsi d'annuler complètement la signature magnétique du véhicule. Lors du montage du dispositif sur un véhicule comportant déjà une protection anti-mine sous forme de renforts métalliques, on pourra avantageusement utiliser ces renforts en remplacement de la plaque métallique. De même, ce dispositif pourra avantageusement être disposé à l'intérieur d'un caisson non magnétique de protection, par exemple un caisson en matériaux composites ou en aluminium.FIG. 2 diagrammatically represents an embodiment variant of the invention in which the device comprises two loops 5a and 5b of electric cable. The currents flowing through these two loops are generated by the power supply 6 and modulated by the modulator 8 but remain independent with respect to each other. The magnetic field generated by the device is equal to the sum of the magnetic fields generated by each loop. In this variant embodiment, the computer 7 decomposes the magnetic field to be generated in two fields respectively applied by each loop and drives the modulator to supply each loop as a function of the magnetic field to be generated. In a more general manner, it will be possible to realize the invention with a multitude of loops in order to generate a magnetic field exactly opposite to that of the vehicle and thus able to completely cancel the magnetic signature of the vehicle. When mounting the device on a vehicle already having an anti-mine protection in the form of metal reinforcements, it may advantageously use these reinforcements to replace the metal plate. Similarly, this device may advantageously be disposed inside a non-magnetic protective casing, for example a box of composite materials or aluminum.
On pourra également avantageusement prévoir un la fixation du dispositif au véhicule réglable en hauteur afin de pouvoir placer la boucle de courant plus ou moins proche du sol. Un tel mode de réalisation permet d'optimiser le réglage des courants et de réaliser ainsi une contre-réaction efficace en champ proche. It will also be possible to advantageously provide a fixing of the device to the vehicle adjustable in height in order to be able to place the loop of current more or less close to the ground. Such an embodiment makes it possible to optimize the regulation of the currents and thus to achieve an effective counter-reaction in the near field.

Claims

REVENDICATIONS
1. Dispositif (2) de protection d'un véhicule terrestre contre les mines à détection magnétique, caractérisé en ce qu'il comporte une plaque métallique (4) disposée sous le véhicule afin de normaliser le champ magnétique généré par le véhicule (1) et/ou par ses éléments et au moins une boucle1. Device (2) for protecting a land vehicle against mines with magnetic detection, characterized in that it comprises a metal plate (4) arranged under the vehicle in order to normalize the magnetic field generated by the vehicle (1) and / or by its elements and at least one loop
(5), disposées sous la plaque métallique (4), réalisée en un matériau conducteur électrique et connectée à une alimentation électrique (6) afin de générer un champ magnétique de valeur sensiblement égale et de signe opposé au champ magnétique issu du véhicule (1) afin de rendre ledit véhicule indétectables par des mines à détection magnétique.(5), arranged under the metal plate (4), made of an electrically conductive material and connected to a power supply (6) in order to generate a magnetic field of substantially equal value and of opposite sign to the magnetic field coming from the vehicle (1 ) to render said vehicle undetectable by magnetic detection mines.
2. Dispositif selon la revendication 1, caractérisé en ce qu'il comporte également un calculateur (7) coopérant avec un modulateur (8) afin de moduler le courant électrique circulant dans la au moins une boucle en fonction de la variation du champ magnétique propre au véhicule, de sa position, de la variation des champs magnétiques générés par ses éléments ou du champ magnétique résultant du véhicule équipé dudit dispositif.2. Device according to claim 1, characterized in that it also comprises a computer (7) cooperating with a modulator (8) for modulating the electric current flowing in the at least one loop according to the variation of the own magnetic field to the vehicle, its position, the variation of the magnetic fields generated by its elements or the magnetic field resulting from the vehicle equipped with said device.
3. Dispositif de protection contre les mines selon la revendication 2, caractérisé en ce qu'il comporte des capteurs de position permettant de déterminer la position du véhicule et notamment sa position et/ou son orientation par rapport au champ magnétique terrestre.3. Mine protection device according to claim 2, characterized in that it comprises position sensors for determining the position of the vehicle and in particular its position and / or its orientation relative to the earth's magnetic field.
4. Dispositif de protection contre les mines selon la revendication 2 ou 3, caractérisé en ce qu'il comporte des capteurs de champ magnétique permettant de mesurer le champ magnétique résultant du véhicule équipé dudit dispositif. 4. A mine protection device according to claim 2 or 3, characterized in that it comprises magnetic field sensors for measuring the magnetic field resulting from the vehicle equipped with said device.
5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que la plaque (4) est une plaque en acier d'épaisseur comprise entre 1 et 100 mm.5. Device according to one of claims 1 to 4, characterized in that the plate (4) is a steel plate with a thickness of between 1 and 100 mm.
6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce qu'il comporte plusieurs boucles (5) alimentées par des courants électriques différents afin de générer plusieurs champs magnétiques superposés. 6. Device according to one of claims 1 to 5, characterized in that it comprises a plurality of loops (5) supplied by different electric currents to generate several superimposed magnetic fields.
EP05775315A 2004-07-23 2005-06-08 Device for protecting a military or civilian vehicle against mines with magnetic detection Withdrawn EP1794536A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0408212A FR2873437B1 (en) 2004-07-23 2004-07-23 DEVICE FOR PROTECTING A MILITARY OR CIVIL VEHICLE AGAINST MAGNETIC DETECTION MINES
PCT/FR2005/001407 WO2006021630A1 (en) 2004-07-23 2005-06-08 Device for protecting a military or civilian vehicle against mines with magnetic detection

Publications (1)

Publication Number Publication Date
EP1794536A1 true EP1794536A1 (en) 2007-06-13

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EP05775315A Withdrawn EP1794536A1 (en) 2004-07-23 2005-06-08 Device for protecting a military or civilian vehicle against mines with magnetic detection

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US (1) US7540240B2 (en)
EP (1) EP1794536A1 (en)
FR (1) FR2873437B1 (en)
IL (1) IL180803A0 (en)
WO (1) WO2006021630A1 (en)

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Publication number Priority date Publication date Assignee Title
US8240239B1 (en) 2011-07-16 2012-08-14 Kevin Mark Diaz Green energy mine defeat system
FR3057218B1 (en) * 2016-10-06 2019-07-26 Alstom Transport Technologies DEVICE FOR ACTIVE COMPENSATION OF A MAGNETIC FIELD GENERATED BY A RAILWAY VEHICLE FOR CIRCULATING ON A RAILWAY

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DE3424231A1 (en) * 1984-06-30 1986-01-09 Bundesrepublik Deutschland, vertreten durch den Bundesminister der Verteidigung, dieser vertreten durch den Präsidenten des Bundesamtes für Wehrtechnik und Beschaffung, 5400 Koblenz Mine protection for land vehicles
FR2701105B1 (en) * 1993-02-01 1995-04-14 Giat Ind Sa Demining device.
DE19605230A1 (en) * 1996-02-13 1997-08-14 Gerd Dr Ing Kellner Anti-mine protection system for military vehicle
DE10134394B4 (en) * 2001-07-14 2004-02-12 Rheinmetall Landsysteme Gmbh Mine protection floor for an armored vehicle

Non-Patent Citations (1)

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Title
See references of WO2006021630A1 *

Also Published As

Publication number Publication date
FR2873437A1 (en) 2006-01-27
IL180803A0 (en) 2007-06-03
US20080314279A1 (en) 2008-12-25
US7540240B2 (en) 2009-06-02
FR2873437B1 (en) 2006-11-10
WO2006021630A1 (en) 2006-03-02

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