EP0015177A1 - Air-dropped buoy with aerodynamic and inertial releases - Google Patents

Air-dropped buoy with aerodynamic and inertial releases Download PDF

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Publication number
EP0015177A1
EP0015177A1 EP80400140A EP80400140A EP0015177A1 EP 0015177 A1 EP0015177 A1 EP 0015177A1 EP 80400140 A EP80400140 A EP 80400140A EP 80400140 A EP80400140 A EP 80400140A EP 0015177 A1 EP0015177 A1 EP 0015177A1
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EP
European Patent Office
Prior art keywords
mechanisms
plunger
buoy
shovels
balloon
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
EP80400140A
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German (de)
French (fr)
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EP0015177B1 (en
Inventor
Vito Suppa
Daniel Viallet
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Thales SA
Thomson CSF Scpi
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Thomson CSF Scpi
Thomson CSF SA
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Publication of EP0015177A1 publication Critical patent/EP0015177A1/en
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Publication of EP0015177B1 publication Critical patent/EP0015177B1/en
Expired legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B22/00—Buoys
    • B63B22/003—Buoys adapted for being launched from an aircraft or water vehicle;, e.g. with brakes deployed in the water
    • 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

Definitions

  • the present invention relates to buoys which are dropped from an aircraft and more specifically to sound radio buoys, which are intended, once in the water, to transmit various submarine parameters and information by radio, detected by acoustic receivers.
  • These radio buoys generally include a float provided with an antenna as well as a hydrophone which, attached to the float descends to a certain depth to detect acoustic noise. The hydrophone's electrical signals are processed and applied to the radio antenna.
  • Z1 is known to use a balloon as a float. This balloon inflates during the fall and once arrived on the water, the air is trapped in the balloon and ensures the buoyancy of the buoy.
  • the balloon Before the fall the balloon is contained in a cover, which must come off at the start of this fall.
  • a releasable airborne buoy comprising a balloon which inflates during the fall ensures the buoyancy of the buoy on the water.
  • the balloon inflates during the fall by a forced entry of air at the base of the balloon and inside the balloon there is a membrane of flexible material which can block the air inlet or outlet holes of the balloon , the pressure of the balloon thus being equal to the maximum dynamic pressure of the air during the fall.
  • the cover is not fixed to the device and it comes off at the start of the fall, which does not guarantee certain operation, the cover being able to cause damage.
  • the descent is slow and therefore it takes quite a long time before the buoy is operational.
  • the descent is faster if the coil is faired, but the volume available for the cable is less, which reduces the depth that the hydrophone can reach.
  • the movement of the shovels is used according to the invention to release the cover and to lock a system for detaching the container in which the hydrophone and the cable reel, the buoy additionally comprising an inertia release device for detaching the container during water impact, which descends rapidly into the water thanks to its fairing.
  • the device according to the invention has the advantage that the lower part detaches entirely, which makes it possible to use a larger volume than in the prior art. As a result, it is possible to accommodate a length of cable for depths up to 2000 meters.
  • a radioelectric buoy comprising a hydraphane, dropable from an aircraft into the water, comprising two separable parts, an upper part containing the electronics associated with a transmission antenna and to a hydrophone capturing sound waves in water, and supporting a floating balloon protected by a cover, the balloon inflating during the fall of the buoy by means of a forced air inlet established by the lifting of openings in the form of shovels located at the base of the balloon, a lower part or “plunger” containing the hydrophone and its coil of coiled suspension cable, the hydrophone can be submerged at depths up to 2000 meters, characterized in that the upper part of the buoy comprises first mechanisms controlled by the lifting of the shovels and second mechanisms controlled by inertial triggering, the operation of these mechanisms not being simultaneous.
  • Figure 1 shows a general exterior view of the buoy according to the invention, which comprises mounted on the body of this buoy, the protective cover of the balloon 5, articulated shovels 18 which allow the forced inflation of the balloon.
  • These shovels are mounted by a fastener 1, the rods 2 whose function is to release the cover 5 and to unlock the mechanism sé - rity of the container 14, which is the hydrophone and the cable reel.
  • the container will be called a diver later.
  • Figure 2 shows the device in the rest position before dropping the buoy. According to a characteristic of the invention, the tilting of shovels upwards when the buoy is released, on the one hand unlocks an inertia flyweight 9, and on the other hand releases the protective cover 5.
  • the buoy being launched from an airplane, for example, its fall causes the shovels 18 to lift under the action of air.
  • this lifting causes a downward movement of the rods 2 and by unlocking, an offset rods 3 under the action of the spring 16.
  • this offset simultaneously causes the axis 8 to be unlocked and the cover to be released by erasing the ends 4.
  • FIG. 3 represents the device in the state obtained which corresponds to the aerial descent of the buoy. With the cover released, the balloon 23 inflates through the holes 22, the air pressure having raised the membrane 21.
  • the radio antenna 20 which is in the balloon 23 is also shown in FIG. 3.
  • water shock is used to drop the plunger into the water.
  • This shock causes a rapid downward movement of the counterweight 9, due to its inertia and the disc 11 allows under the action of the springs 13 to release the plunger 14 by returning the rods 12, the disc being locked in the low position.
  • FIG. 4 represents the device at the time of the impact with water and FIG. 5 gives a transverse view which makes it possible to better understand these mechanisms.
  • inertial tripping movement is inhibited during handling as long as the shovels are not raised, which prevents accidental impacts on the plunger.
  • a jettable buoy comprising a hydrophone that can be submerged to depths of up to 2,000 meters.
  • the device is very safe during handling, during the fall and impact, for the antenna, the electronics and the hydrophone part.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Catching Or Destruction (AREA)
  • Toys (AREA)
  • Insulated Conductors (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Radiobouées largables à partir d'un aéronef destinées à flotter à la surface de la mer et comportant un plongeur pour immerger un hydrophone. Au cours de la chute un ballon (23) se gonfle par une entrée d'air force par les trous (22) grâce à des ouvertures articulées en forme de pelles, les pelles débloquent par une tringle (1) le capot de protection du ballon (23) et le dispositif de sécurité (6, 7) de largage du plongeur (14), qui se détache après l'impact sur l'eau par déclenchement inertiel dû à des mécanismes comportant une masselotte d'inertie (9). Application à la surveillance sous-marine à des profondeurs pouvant atteindre 2 000 mètres.Radioboubles releasable from an aircraft intended to float on the surface of the sea and comprising a plunger to immerse a hydrophone. During the fall a balloon (23) is inflated by an air intake forced by the holes (22) thanks to articulated openings in the form of shovels, the shovels unlock by a rod (1) the protective cover of the balloon (23) and the safety device (6, 7) for dropping the plunger (14), which detaches after the impact on the water by inertial triggering due to mechanisms comprising an inertia flyweight (9). Application to underwater surveillance at depths up to 2000 meters.

Description

La présente invention se rapporte à des bouées qui sont larguées d'un aéronef et plus spécialement aux radiobouées sonores, qui sont destinées une fois à l'eau, à transmettre radioélectriquement divers paramètres et informations sous-marins, détectés par des récepteurs acoustiques. Ces radiobouées comportent généralement un flotteur muni d'une antenne ainsi que d'un hydrophone qui, rattaché au flotteur descend à une certaine profondeur pour détecter les bruits acoustiques. Les signaux électriques de l'hydrophone sont traités et appliqués à l'antenne radioélectrique.The present invention relates to buoys which are dropped from an aircraft and more specifically to sound radio buoys, which are intended, once in the water, to transmit various submarine parameters and information by radio, detected by acoustic receivers. These radio buoys generally include a float provided with an antenna as well as a hydrophone which, attached to the float descends to a certain depth to detect acoustic noise. The hydrophone's electrical signals are processed and applied to the radio antenna.

La chute de la bouée après son largage doit être freinée et doit être aérodynamiquement stable, pour qu'après l'impact sur l'eau, la flottabilité soit assurée et que les systèmes radioélectriques et acoustiques se mettent en place de façon à fonctionner correctement.The fall of the buoy after its release must be braked and must be aerodynamically stable, so that after the impact on the water, the buoyancy is ensured and that the radioelectric and acoustic systems are set up in order to function properly.

Z1 est connu d'utiliser un ballon comme flotteur. Ce ballon se gonfle au cours de la chute et une fois arrivé sur l'eau, l'air se trouve emprisonné dans le ballon et assure la flottabilité de la bouée.Z1 is known to use a balloon as a float. This balloon inflates during the fall and once arrived on the water, the air is trapped in the balloon and ensures the buoyancy of the buoy.

Avant la chute le ballon est contenu dans un capot, qui doit se détacher au début de cette chute. D'autre part dans la partie inférieure du dispositif se trouve un conteneur dans lequel se trouve l'hydrophone avec une bobine de câble. Ce câble sert à la fois pour porter l'hydrophone une fois immergé et pour conduire les signaux électriques vers l'antenne d'émission.Après l'arrivée de la bouée sur l'eau l'hydrophone et son câble doivent se détacher du flotteur pour descendre à la profondeur déterminée pai la longueur du câble qui s'est déroulé complètement.Before the fall the balloon is contained in a cover, which must come off at the start of this fall. On the other hand in the lower part of the device is a container in which the hydrophone is located with a cable reel. This cable is used both to carry the hydrophone once submerged and to conduct electrical signals to the transmitting antenna. After the buoy arrives on the water, the hydrophone and its cable must detach from the float to descend to the depth determined by the length of the cable which has completely unwound.

Dans la demande.de brevet français déposée . le 18 Juillet 1978 sous le numéro 78.21.276 est décrite une réalisation de bouée aéroportée largable, comportant un ballon qui se gonflant pendant la chute assure la flottabilité de la bouée sur l'eau. Le ballon se gonfle pendant la chute par une entrée forcée de l'air à la base du ballon et à l'intérieur du ballon se trouve une membrane en matériau souple pouvant obturer des trous d'entrée ou de sortie de l'air du ballon, la pression du ballon étant ainsi égale à la pression dynamique maximale de l'air au cours de la chute.In the French patent application filed. July 18, 1978 under number 78.21.276 is described an embodiment of a releasable airborne buoy, comprising a balloon which inflates during the fall ensures the buoyancy of the buoy on the water. The balloon inflates during the fall by a forced entry of air at the base of the balloon and inside the balloon there is a membrane of flexible material which can block the air inlet or outlet holes of the balloon , the pressure of the balloon thus being equal to the maximum dynamic pressure of the air during the fall.

Des pièces mécaniques incurvées articulées appelées "pelles" permettent l'entrée forcée de l'air et le ballon est muni sur sa partie supérieure de poches, traversées par l'air en cours de chute et ces courants d'air produisent une pression stabilisant le ballon en rotation au cours de cette chute.Articulated curved mechanical parts called "shovels" allow the forced entry of air and the balloon is provided on its upper part with pockets, crossed by the falling air and these air currents produce a pressure stabilizing the ball in rotation during this fall.

Suivant l'art antérieur le capot n'est pas fixé sur le dispositif et il se détache en début de la chute, ce qui n'assure pas un fonctionnenement certain, le capot pouvant causer des avaries.According to the prior art, the cover is not fixed to the device and it comes off at the start of the fall, which does not guarantee certain operation, the cover being able to cause damage.

D'autre part, suivant cet art antérieur, après l'impact sur l'eau une trappe s'ouvre dans la partie inférieure de la bouée, ce qui permet la chute de l'hydrophone avec son câble. L'ouverture de la trappe est causée par la pression hydrostatique. La bobine de câble et l'hydrophone une fois libérés coulent directement ou protégés dans une enveloppe.On the other hand, according to this prior art, after the impact on the water, a hatch opens in the lower part of the buoy, which allows the hydrophone to fall with its cable. The opening of the hatch is caused by hydrostatic pressure. The cable reel and the hydrophone, once released, flow directly or are protected in an envelope.

La descente est lente et donc il se passe un temps assez long avant que la bouée ne soit opérationnelle. La descente est plus rapide si la bobine est carénée, mais le volume disponible pour le câble est moindre, ce qui réduit la profondeur que peut atteindre l'hydrophone.The descent is slow and therefore it takes quite a long time before the buoy is operational. The descent is faster if the coil is faired, but the volume available for the cable is less, which reduces the depth that the hydrophone can reach.

Pour remédier à ces inconvénients on utilise, suivant l'invention, le mouvement des pelles pour libérer le capot et d verrouiller un système de détachement du conteneur dans lequel se trouve l'hydrophone et la bobine de câble, la bouée comportant en plus un dispositif à déclenchement à inertie pour détacher lors du choc à l'eau le conteneur, qui descend rapidement dans l'eau grâce à son carénage.To overcome these drawbacks, the movement of the shovels is used according to the invention to release the cover and to lock a system for detaching the container in which the hydrophone and the cable reel, the buoy additionally comprising an inertia release device for detaching the container during water impact, which descends rapidly into the water thanks to its fairing.

De plus le dispositif suivant l'invention présente l'avantage que la partie inférieure se détache entièrement, ce qui permet d'utiliser un plus grand volume que dans l'art antérieur. Il en résulte qu'il est possible de loger une longueur de câble pour des profondeurs jusqu'à 2000 mètres.In addition, the device according to the invention has the advantage that the lower part detaches entirely, which makes it possible to use a larger volume than in the prior art. As a result, it is possible to accommodate a length of cable for depths up to 2000 meters.

Suivant la caractéristique principale de l'invention il s'agit d'une bouée radioélectrique comportant un hydraphane, largable d'un aéronef dans l'eau, comprenant deux parties séparables, une partie supérieure contenant l'électronique associée à une antenne de transmission et à un hydrophone capteur des ondes sonores dans l'eau, e-t supportant un ballon flotteur protégé par un capot, le ballon se gonflant pendant la chute de la bouée à l'aide d'une entrée d'air forcée établie par le soulèvement d'ouvertures en forme de pelles situées à la base du ballon, une partie inférieure ou "plongeur" contenant l'hydrophone et sa bobine de câble de suspension enroulé, l'hydrophone pouvant être immergé à des profondeurs pouvant atteindre 2000 mètres, caractérisée en ce que la partie supérieure de la bouée comporte des premiers mécanismes commandés par le soulèvement des pelles et des seconds mécanismes commandés par déclenchement inertiel,le fonctionnement de ces mécanismes n'étant pas simultané.According to the main characteristic of the invention it is a radioelectric buoy comprising a hydraphane, dropable from an aircraft into the water, comprising two separable parts, an upper part containing the electronics associated with a transmission antenna and to a hydrophone capturing sound waves in water, and supporting a floating balloon protected by a cover, the balloon inflating during the fall of the buoy by means of a forced air inlet established by the lifting of openings in the form of shovels located at the base of the balloon, a lower part or "plunger" containing the hydrophone and its coil of coiled suspension cable, the hydrophone can be submerged at depths up to 2000 meters, characterized in that the upper part of the buoy comprises first mechanisms controlled by the lifting of the shovels and second mechanisms controlled by inertial triggering, the operation of these mechanisms not being simultaneous.

D'autres caractéristiques et avantages apparaîtront au cours de la description d'un exemple de l'invention, donné à l'aide des figures qui représentent :

  • - la figure 1, une vue générale de la bouée largable avant la chute, suivant l'invention ;
  • - la figure 2, une vue détaillée longitudinale des dispositifs de libération du capot et du conteneur, avant la chute ;
  • - la figure 3, une vue détaillée longitudinale des dispositifs de libération du capot et du conteneur au cours de la chute ;
  • - la figure 4, une vue détaillée longitudinale des dispositifs de libération du capot et du conteneur. après l'arrivée sur l'eau ;
  • - la figure 5, une vue transversale des mécanismes de libération du capot et du conteneur.
Other characteristics and advantages will appear during the description of an example of the invention, given with the aid of the figures which represent:
  • - Figure 1, a general view of the dropable buoy before the fall, according to the invention;
  • - Figure 2, a detailed longitudinal view of the cover and container release devices, before the fall;
  • - Figure 3, a detailed longitudinal view of the cover and container release devices during the fall;
  • - Figure 4, a detailed longitudinal view of the cover release devices and the container. after arriving on the water;
  • - Figure 5, a cross view of the release mechanisms of the cover and the container.

La figure 1 montre une vue générale extérieure de la bouée suivant l'invention, qui comprend montés sur le corps de cette bouée, le capot protecteur du ballon 5, des pelles articulées 18 qui permettent le gonflage forcé du ballon. Sur ces pelles sont montées par une fixation 1, des tringles 2 dont le rôle est de libérer le capot 5 et de déverrouiller le mécanisme de sé- curité du conteneur 14, dans lequel se trouve l'hydrophone et la bobine de câble. Le conteneur sera appelé plongeur par la suite.Figure 1 shows a general exterior view of the buoy according to the invention, which comprises mounted on the body of this buoy, the protective cover of the balloon 5, articulated shovels 18 which allow the forced inflation of the balloon. These shovels are mounted by a fastener 1, the rods 2 whose function is to release the cover 5 and to unlock the mechanism sé - rity of the container 14, which is the hydrophone and the cable reel. The container will be called a diver later.

La figure 2 représente le dispositif en position de repos avant le largage de la bouée. Selon une caractéristique de l'invention, le basculement de pelles vers le haut lors du largage de la bouée, d'une part déverrouille une masselotte d'inertie 9, et d'autre part libère le capot de protection 5.Figure 2 shows the device in the rest position before dropping the buoy. According to a characteristic of the invention, the tilting of shovels upwards when the buoy is released, on the one hand unlocks an inertia flyweight 9, and on the other hand releases the protective cover 5.

Sur cette figure 2 apparaît en 1 l'extrémité supérieure des pelles permettant l'entrée d'air dans le ballon suivant le processus indiqué dans une autre demande de brevet de la demanderesse n° 78.21276 déjà citée. Sur chaque pelle est fixée, par rivetage par exemple, la tringle 2 qui bloque avec le ressort 16 une tige 3 placée transversalement dont l'extrémité bloque un côté du capot 5 et comportant une pièce 6 qui verrouille l'extrémité 7 d'un axe 8 solidaire de la masselotte 9, dont la base est munie d'un disque 11, maintenue en position haute par le ressort taré 10. Ce disque tient écartées deux tiges 12 munies de ressorts 13 dont les extrémités bloquent le plongeur. Par ailleurs, on distingue en 15 la partie électronique comprenant principalement l'émetteur radioélectrique et l'amplificateur de l'hydrophone.In this figure 2 appears at 1 the upper end of the shovels allowing the entry of air into the balloon according to the process indicated in another patent application of the Applicant No. 78.21276 already cited. On each shovel is fixed, by riveting for example, the rod 2 which blocks with the spring 16 a rod 3 placed transversely whose end blocks one side of the cover 5 and comprising a part 6 which locks the end 7 of an axis 8 secured to the counterweight 9, the base of which is provided with a disc 11, held in the high position by the calibrated spring 10. This disc holds apart two rods 12 provided with springs 13 whose ends block the plunger. Furthermore, a distinction is made at 15 the electronic part comprising mainly the radio transmitter and the amplifier of the hydrophone.

La bouée étant par exemple lancée d'avion, sa chute entraîne sous l'action de l'air le soulèvement des pelles 18. Par rotation (environ 200), ce soulèvement entraîne un mouvement descendant des tringles 2 et par déblocage, un décalage des tiges 3 sous l'action du ressort 16. Par écartement des pièces 6, ce décalage provoque simultanément le déverrouillage de l'axe 8 et la libération du capot par effacement des extrémités 4.The buoy being launched from an airplane, for example, its fall causes the shovels 18 to lift under the action of air. By rotation (approximately 20 ° ), this lifting causes a downward movement of the rods 2 and by unlocking, an offset rods 3 under the action of the spring 16. By spacing the parts 6, this offset simultaneously causes the axis 8 to be unlocked and the cover to be released by erasing the ends 4.

La figure 3 représente le dispositif dans l'état obtenu qui correspond à la descente aérienne de la bouée. Le capot libéré, le ballon 23 se gonfle par les trous 22, la pression de l'air ayant soulevé la membrane 21. L'antenne radioélectrique 20 qui se trouve dans le ballon 23 est également représentée sur la figure 3.FIG. 3 represents the device in the state obtained which corresponds to the aerial descent of the buoy. With the cover released, the balloon 23 inflates through the holes 22, the air pressure having raised the membrane 21. The radio antenna 20 which is in the balloon 23 is also shown in FIG. 3.

Selon une autre caractéristique de l'invention, on utilise le choc à l'eau pour larguer le plongeur dans l'eau. Ce choc provoque un mouvement rapide vers le bas de la masselotte 9, de par son inertie et le disque 11 permet sous l'action des ressorts 13 de libérer le plongeur 14 en rentrant les tiges 12, le disque se trouvant verrouillé en position basse.According to another characteristic of the invention, water shock is used to drop the plunger into the water. This shock causes a rapid downward movement of the counterweight 9, due to its inertia and the disc 11 allows under the action of the springs 13 to release the plunger 14 by returning the rods 12, the disc being locked in the low position.

La figure 4 représente le dispositif au moment du choc à l'eau et la figure 5 donne une vue transversale qui permet de mieux comprendre ces mécanismes.FIG. 4 represents the device at the time of the impact with water and FIG. 5 gives a transverse view which makes it possible to better understand these mechanisms.

Après le choc le plongeur 14 est libéré et coule, n'étant plus relié à la partie supérieure de la bouée que par le câble 25. L'axe 8 ayant été déverrouillé au début de la chute de sa liaison avec la pièce 6, il s'en suit qu'au moment du choc sur l'eau le plongeur est libéré sans que la partie supérieure ne soit soumise à ces efforts importants. Ceci évite des avaries possibles du flotteur et/ou de l'électronique qui pourraient survenir de ces efforts au moment du choc, surtout dans le cas où la longueur du câble est importante.After the shock the plunger 14 is released and sinks, being no longer connected to the upper part of the buoy except by the cable 25. The axis 8 having been unlocked at the start of the fall of its connection with the part 6, it It follows that at the time of the impact on the water the diver is released without the upper part being subjected to these significant forces. This avoids possible damage to the float and / or electronics that could arise from these forces at the time of impact, especially in the case where the length of the cable is significant.

D'autre part, l'enveloppe du plongeur étant plus légère par construction,que la charge utile constitués de l'hydrophone et de sa bobine, cette charge se trouve être carénée par l'enveloppe,ce qui rend cette descente plus rapide ; la perte de l'enveloppe se fait simplement par gravité lorsque le câble est entièrement déroulé.On the other hand, the casing of the plunger being lighter by construction, than the payload made up of the hydrophone and its coil, this load is found to be faired by the casing, which makes this descent more rapid; the envelope is lost simply by gravity when the cable is fully unwound.

De plus, le mouvement de déclenchement inertiel est inhibé en manutention tant que les pelles ne sont pas soulevées ce qui prévient des chocs accidentels sur le plongeur.In addition, the inertial tripping movement is inhibited during handling as long as the shovels are not raised, which prevents accidental impacts on the plunger.

En conclusion, on a décrit une bouée largable comportant un hydrophone pouvant être immergé à des profondeurs pouvant atteindre 2 000 mètres. Le dispositif présente une grande sécurité au cours de la manutention, au cours de la chute et de l'impact, pour l'antenne, l'électronique et la partie hydrophone.In conclusion, a jettable buoy has been described comprising a hydrophone that can be submerged to depths of up to 2,000 meters. The device is very safe during handling, during the fall and impact, for the antenna, the electronics and the hydrophone part.

Claims (7)

1 - Bouée radioélectrique, comportant un hydrophone, largable d'un aéronef dans l'eau, comprenant deux parties séparables, une partie supérieure contenant l'électronique associée à une antenne de transmission et à un hydrophone capteur des ondes sonores dans l'eau et supportant un ballon flotteur protégé par un capot, le ballon se gonflant pendant la chute de la bouée à l'aide d'une entrée d'air forcée établie par le soulèvement d'ouverture en forme de pelles, situées à la base du ballon, une partie inférieure ou "plongeur" contenant l'hydjCDphone et sa bobine de câble de suspension enroulé, l'hydrophone pouvant être immergé à des profondeurs pouvant atteindre 2000 mètres, caractérisée en ce que la partie supérieure de la bouée comporte des premiers mécanismes commandés par le soulèvement des pelles et des seconds mécanismes commandés par déclenchement inertiel, le fonctionnement de ces mécanismes n'étant pas simultané.1 - Radioelectric buoy, comprising a hydrophone, jettisonable from an aircraft in water, comprising two separable parts, an upper part containing the electronics associated with a transmission antenna and with a hydrophone which detects sound waves in water and supporting a float balloon protected by a cover, the balloon inflating during the fall of the buoy by means of a forced air inlet established by the opening lift in the form of shovels, located at the base of the balloon, a lower part or "diver" containing the hydj CD phone and its coil of coiled suspension cable, the hydrophone can be immersed at depths up to 2000 meters, characterized in that the upper part of the buoy has first mechanisms controlled by the lifting of the shovels and second mechanisms controlled by inertial triggering, the operation of these mechanisms not being simultaneous. 2 - Bouée largable suivant la revendication 1, caractérisée en ce que au moment du largage, le soulèvement des pelles entraîne par l'intermédiaire des premiers mécanismes d'une part la libération du capot protecteur du ballon flotteur et d'autre part le déverrouillage d'un dispositif de sécurité des seconds mécanismes liant le plongeur à la partie supérieure.2 - Releasable buoy according to claim 1, characterized in that at the time of the release, the lifting of the shovels causes through the first mechanisms on the one hand the release of the protective cover of the float ball and on the other hand the unlocking d 'a safety device for the second mechanisms linking the plunger to the upper part. 3 - Bouée largable suivant la revendication 1, caractérisée en ce que au moment du choc sur l'eau les seconds mécanismes entraînent la libération du plongeur par déclenchement inertiel.3 - Releasable buoy according to claim 1, characterized in that at the time of the impact on the water the second mechanisms cause the release of the plunger by inertial triggering. 4 - Bouée largable suivant la revendication 1, caractérisée en ce que le plongeur libéré est un conteneur à enveloppe carénée, qui est la partie inférieure de la bouée et que cette enveloppe descend au fond de l'eau une fois que le câble de suspension de l'hydrophone est tendu.4 - Releasable buoy according to claim 1, characterized in that the released plunger is a container with a shrouded envelope, which is the lower part of the buoy and that this envelope descends to the bottom of the water once the suspension cable of hydro phone is tense. 5 - Bouée largable suivant la revendication 2, caractérisée en ce que les premiers mécanismes comportent des tringles fixées aux pelles qui commandent des tiges dont une extrémité bloque un côté du capot.5 - Releasable buoy according to claim 2, characterized in that the first mechanisms include rods attached to the shovels which control rods, one end of which blocks one side of the cover. 6 - Bouée largable suivant la revendication 5, caractérisée en ce que les tiges bloquent également le dispositif de sécurité des seconds mécanismes de libération du plongeur et qu'au cours de la chute, le soulèvement des pelles par l'intermédiaire des tringles entraîne le déverrouillage du dispositif des sécurités.6 - Releasable buoy according to claim 5, characterized in that the rods also block the safety device of the second release mechanisms of the plunger and that during the fall, the lifting of the shovels by means of the rods causes the unlocking of the security system. 7 - Bouée largable suivant la revendication 3, caractérisée en ce que les seconds mécanismes de libération du plongeur comporte une masselotte ayant à sa partie inférieure un disque qui poussant sur d'autres tiges maintient le blocage du plongeur en cours de chute, et en ce qu'après l'impact, l'avance de la masselotte provoque le déblocage du plongeur.7 - Releasable buoy according to claim 3, characterized in that the second release mechanisms of the plunger comprises a counterweight having at its lower part a disc which pushing on other rods maintains the blocking of the plunger during the fall, and in that that after impact, the advance of the counterweight causes the plunger to be released.
EP80400140A 1979-02-27 1980-01-29 Air-dropped buoy with aerodynamic and inertial releases Expired EP0015177B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7905002 1979-02-27
FR7905002A FR2450193A1 (en) 1979-02-27 1979-02-27 WIDE AIRBORNE BUOY WITH INERTIAL TRIGGERING

Publications (2)

Publication Number Publication Date
EP0015177A1 true EP0015177A1 (en) 1980-09-03
EP0015177B1 EP0015177B1 (en) 1982-09-29

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EP80400140A Expired EP0015177B1 (en) 1979-02-27 1980-01-29 Air-dropped buoy with aerodynamic and inertial releases

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US (1) US4295211A (en)
EP (1) EP0015177B1 (en)
AR (1) AR226299A1 (en)
AU (1) AU524817B2 (en)
BR (1) BR8001121A (en)
CA (1) CA1130144A (en)
DE (1) DE3060884D1 (en)
ES (1) ES8100192A1 (en)
FR (1) FR2450193A1 (en)
NO (1) NO152203C (en)

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GB2218950A (en) * 1988-05-26 1989-11-29 Secr Defence Brit An air descent control and flotation device
CN111362090A (en) * 2020-04-03 2020-07-03 南京高立工程机械有限公司 Safety system for construction elevator

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FR2725684A1 (en) * 1994-10-18 1996-04-19 Thomson Csf LARGABLE AIRBORNE BUOY
FR2744870B1 (en) * 1996-02-13 1998-03-06 Thomson Csf METHOD FOR CONTROLLING THE NAVIGATION OF A TOWED LINEAR ACOUSTIC ANTENNA, AND DEVICES FOR CARRYING OUT SUCH A METHOD
FR2764160B1 (en) * 1997-05-27 1999-08-27 Thomson Marconi Sonar Sas ELECTRODYNAMIC TRANSDUCER FOR UNDERWATER ACOUSTICS
FR2776161B1 (en) 1998-03-10 2000-05-26 Thomson Marconi Sonar Sas REMOVABLE ANNULAR ACOUSTIC EMISSION ANTENNA
FR2800229B1 (en) 1999-10-22 2002-04-05 Thomson Marconi Sonar Sas BROADBAND SUBMARINE ACOUSTIC TRANSDUCER
FR2809580B1 (en) 2000-05-26 2002-08-30 Thomson Marconi Sonar Sas ELECTRODYNAMIC TRANSDUCER FOR UNDERWATER ACOUSTICS
CN101857069B (en) * 2010-02-24 2012-11-28 中国船舶重工集团公司第七一○研究所 Inertial separating joint
FR2995588B1 (en) 2012-09-18 2015-12-11 Dcns FUNCTIONAL SYSTEM FOR CHANGING THE AIR / WATER ENVIRONMENT AS IN PARTICULAR AGAINST UNDERWATER MEASUREMENT INTENDED TO BE LAUNCHED IN PARTICULAR FROM A SURFACE BUILDING
FR3015785B1 (en) * 2013-12-20 2015-12-25 Thales Sa COMPACT OMNIDIRECTIONAL ANTENNA FOR SONAR TEMP

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FR2094667A5 (en) * 1970-06-29 1972-02-04 Cit Alcatel
US4029233A (en) * 1973-03-29 1977-06-14 Sparton Corporation Sonobuoy retainer plate
FR2315428A1 (en) * 1975-06-26 1977-01-21 Cit Alcatel Listening buoy launched from aircraft - has float and sinker connected by cable, and releasable casing
US4033529A (en) * 1976-02-27 1977-07-05 Sanders Associates, Inc. Drogue release apparatus
FR2431413A1 (en) * 1978-07-17 1980-02-15 Deere & Co LOW TURNING RADIUS TRACTOR

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GB2218950A (en) * 1988-05-26 1989-11-29 Secr Defence Brit An air descent control and flotation device
GB2218950B (en) * 1988-05-26 1992-09-30 Secr Defence Brit An air descent control and flotation device
CN111362090A (en) * 2020-04-03 2020-07-03 南京高立工程机械有限公司 Safety system for construction elevator

Also Published As

Publication number Publication date
AU524817B2 (en) 1982-10-07
BR8001121A (en) 1980-11-04
NO152203C (en) 1985-08-21
DE3060884D1 (en) 1982-11-11
CA1130144A (en) 1982-08-24
NO152203B (en) 1985-05-13
FR2450193A1 (en) 1980-09-26
EP0015177B1 (en) 1982-09-29
ES488934A0 (en) 1980-11-01
AU5488080A (en) 1980-09-04
NO800543L (en) 1980-08-28
ES8100192A1 (en) 1980-11-01
FR2450193B1 (en) 1982-02-05
AR226299A1 (en) 1982-06-30
US4295211A (en) 1981-10-13

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