EP0800053A1 - Functioning testing device for an ammunition launcher - Google Patents

Functioning testing device for an ammunition launcher Download PDF

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Publication number
EP0800053A1
EP0800053A1 EP97400518A EP97400518A EP0800053A1 EP 0800053 A1 EP0800053 A1 EP 0800053A1 EP 97400518 A EP97400518 A EP 97400518A EP 97400518 A EP97400518 A EP 97400518A EP 0800053 A1 EP0800053 A1 EP 0800053A1
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EP
European Patent Office
Prior art keywords
test
test device
measurement
launcher
energy
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Granted
Application number
EP97400518A
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German (de)
French (fr)
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EP0800053B1 (en
Inventor
Jérôme Loison
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Giat Industries SA
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Giat Industries SA
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/58—Electric firing mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B35/00—Testing or checking of ammunition

Definitions

  • the technical field of the invention is that of devices making it possible to test the proper functioning of an ammunition launcher.
  • launch tubes are frequently used to deploy ammunition such as smoke or anti-personnel grenades.
  • These launch tubes generally carry electrical energy supply means which cooperate with electrical energy receiving means carried by the munition.
  • These means could for example be electrical contacts or an inductive system (such as that described by patent FR2438820) or even a capacitive system (as described by patent FR2593908).
  • the energy supply means conduct an electric current to the munition intended in particular to ignite a propellant charge for ejecting the munition from the tube.
  • the firing trigger implements a current whose intensity must be (for safety reasons) of at least 3 amperes for at least 15 milliseconds.
  • the known control means use intensity measurement benches which are bulky, costly and difficult to use by untrained personnel.
  • test device allows a simple, rapid and reliable verification of the proper functioning of the launcher.
  • the subject of the invention is a device making it possible to test the proper functioning of a launcher consisting of a tube capable of receiving ammunition and inside which are arranged means for supplying electrical energy to the ammunition intended in particular to allow its ignition, this device is characterized in that it is constituted by a body having substantially the shape of an ammunition and comprising means for receiving electrical energy cooperating with the means for supplying energy to the launcher tube , receiving means connected to a test electronics placed inside the body.
  • test electronics are supplied with energy by the launcher tube through energy receiving means.
  • test electronics can comprise at least one capacity which is charged with energy by the launcher, capacity ensuring the electrical supply of the test device.
  • the test electronics comprises at least a first measurement channel making it possible to verify that the intensity of the current received from the launcher tube during ignition is greater than a minimum intensity for a minimum duration.
  • the test electronics comprises at least a second measurement channel making it possible to verify that the intensity which is received from the launcher tube permanently outside of the firing is less than a maximum intensity.
  • test electronics comprise an electronic power switch making it possible to switch the current supplied by the means for receiving electrical energy to one or the other of the measurement channels.
  • the closing time of the power switch will be chosen at least equal to the minimum duration.
  • the device advantageously comprises a manual switch, carried by the body of the device, and making it possible to select one or the other of the measurement channels.
  • the results of the measurements can be given by a display secured to the body.
  • the test device may include a sequencer ensuring the sequencing of the switching, measurement and display operations of the measurement result.
  • test device 1 according to the invention is shown in place in a launcher tube 2 of ammunition.
  • the launcher tube 2 is integral with a wall 3 of an armored vehicle and it is closed at its rear part by a bottom 4 (screwed or welded to the tube) which carries means 5 for supplying electrical energy.
  • These means are constituted here by a coaxial connector comprising a central pin 5a and a peripheral ring 5b, separated by an insulator 5c.
  • Such a connector is shown here for information only because it does not constitute the subject of the invention.
  • the test device 1 has the external shape and the size of a real munition, which facilitates its storage and handling.
  • It is constituted by a body comprising a tubular envelope 6 closed by a cover 7 and a base 8, fixed to the envelope 6 for example by screws (not shown).
  • the base 8 carries electrical energy receiving means 9 which are intended to cooperate with the energy supply means 5 of the launcher tube.
  • These means are here constituted by a coaxial connector having a central pin 9a and a peripheral ring 9b separated by an insulator 9c.
  • test device In the case of inductive transmission means, the test device would carry a receiving coil which would be in inductive coupling with the emitting coil of the launcher tube.
  • the cover 7 carries a manual switch with two positions 10, as well as a means for displaying the result of the test, means constituted here by two indicator lights 11a, 11b (LEDs) of different colors (Green and Red).
  • the cover 7 is set back inside the envelope 6, this in order to ensure the protection of the manual switch 10 and of the displays 11a, 11b.
  • the body of the test device contains an electronic card carrying an electronic test circuit 12 which is connected to the contacts 9a, 9b of the connector 9 by the conductors 14a, 14b as well as to the manual switch 10 and to the LEDs 11a, 11b.
  • All the free space inside the body of the device is filled with an insulating and damping plastic material 13 such as a coating resin.
  • the filling material is poured into the envelope 6 after positioning the circuit 12 and setting up the electrical connections.
  • the cover 7 is then fixed to the envelope by an appropriate connecting means, not shown (for example screws).
  • FIG. 2 is a block diagram of the electronic test circuit 12.
  • One of the contacts 9b is the point common to the whole of the circuit, the other contact 9a supplies a capacitor 15 which is intended to supply energy to the whole of the circuit 12.
  • the test device does not contain any energy source (battery, battery) liable to degrade or discharge during storage.
  • the energy necessary for the operation of the circuits is borrowed from the on-board network of the vehicle at the time of the test and stored in capacity 15.
  • the test circuit includes a first measurement channel 16 and a second measurement channel 17.
  • the current supplied by the contacts is applied to a power switch 18 which has the function of switching the current supplied by the contacts in one or the other of the measurement channels during the time necessary for the measurement.
  • This switch is constituted for example by a power transistor.
  • Each measurement channel 16, 17 is constituted by a current sensor of known type which measures the intensity by measuring the voltage across a calibrated resistor.
  • These sensors are controllable by a control signal which triggers the start of the measurement and they supply a voltage representative of the measured intensity.
  • the first measurement channel 16 is intended to measure the firing current (I) which, to be sufficient (to allow the firing of the ammunition) must be greater than a minimum intensity Im (of the order of 3 amps) for a minimum duration Tm (of the order of 15 milliseconds).
  • a first comparator 21 makes it possible to compare the measured value with a setpoint supplied by a voltage reference circuit 20 which is composed for example of a voltage reference diode associated with a potentiometric divider.
  • the duration Tm of the measurement is obtained by a sequencer 19 of known type which includes a quartz oscillator and a counter.
  • the signal resulting from the comparison between the measurement and the setpoint is sampled by the oscillator of the sequencer 19 to increment a counter 25, the sampling will for example be carried out using an AND logic gate.
  • the counter therefore increments at each clock slot only if the comparator supplies a logic signal "1" signifying that the measured current is correct.
  • one of the outputs of the counter 25 is used which goes to a logic level "1" for a sufficient counting level taking into account the duration Tm (therefore when the measured current has been correct for the duration Tm).
  • the display circuit 22 is controlled by the sequencer 19 and it switches on one or other of the Led displays (11a or 11b) according to the signal supplied by the counter 25 at the end of the duration measurement Tm (level "1" supplied by the counter 25 controls the lighting of the green LED, the signal "0", the lighting of the red Led).
  • the second measurement channel 17 has a similar operation. It is intended to measure the safety current which circulates in the ammunition when it is put in place in the tube and when firing is not requested. To be correct (do not cause inadvertent ignition) this current (i) must not exceed a maximum value i M (i M of the order of 100 milliamps).
  • Another voltage reference circuit 23 potentiometric mounting) generates a voltage setpoint which is an image of the value of the maximum current iM.
  • a second comparator 24 compares this value with the value measured by the measurement circuit 17 and provides a signal which is sampled by the oscillator of the sequencer 19 to increment the counter 25, which delivers the control signal from the display circuit 22.
  • the power switch 18, as well as the measurement channels 16 and 17 and the display circuit 22, are controlled by the sequencer 19 which, like a microprocessor, ensures the sequencing of the various operations.
  • FIG. 3a is a timing diagram which represents the temporal sequence of operations when the first measurement channel is chosen.
  • the user who installed the ammunition can first of all check that the vehicle's electrical circuit detects the presence of the test ammunition (lighting of an "ammunition presence” indicator on his control console).
  • test circuit 16 After approximately 550 milliseconds (time necessary for the stabilization of the internal functions), the test circuit 16, controlled by the sequencer 19, performs the measurement (slot 27).
  • the display of the red or green LED is controlled by the sequencer 19 (slot 28).
  • This display persists for 1 to 2 seconds after the release of the firing button. This duration corresponds to the discharge of the capacitor 15 in the display members (Led 11a or 11b).
  • FIG. 3b is a timing diagram which represents the temporal sequence of operations when the second measurement channel is chosen.
  • the user has positioned the manual switch 10 in the position corresponding to the measurement of the safety current.
  • the device then uses the energy supplied by the launch tube to charge the capacity 15.
  • test circuit 17, controlled by the sequencer 19 performs the measurement of the safety current (slot 30), and this for a measurement duration Tm.
  • the release of the button is detected by another comparator circuit (not shown in the diagram in FIG. 2) and which detects the disappearance of the energy supplied by the launch tube.
  • the display of the red or green LED is controlled by the sequencer 19 (slot 31).
  • the display persists for a certain period corresponding to the discharge of the capacitor 15 in the display members (LED 11a or 11b).
  • test device allows all the launcher test operations to be carried out in an extremely simple manner.
  • the only action required of the operator is to press the firing button, both for testing the firing current and for the safety current.
  • the test device is implemented like normal ammunition and is not more bulky than this one, which allows it to be carried in all vehicles.
  • test device comprising only one measurement channel (for example the firing current).

Abstract

The test unit, designed to determine the correct functioning of a launch tube (2) with a system (5) for feeding electricity to the missile to fire it, consists of a housing (6,7,8) in the shape of a missile, equipped with electrical energy receiving elements (9) to interact with the feed system (5) and containing an electronic tester (12). The electronic tester (12) contains at least one capacitance which is charged with electricity by the launch tube and a measuring circuit to verify that the current received from the launch tube for firing is above a minimal intensity for a minimum period of time. A second circuit verifies that the electricity received from the launch tube outside the firing period is below a set maximum level.

Description

Le domaine technique de l'invention est celui des dispositifs permettant de tester le bon fonctionnement d'un lanceur de munition.The technical field of the invention is that of devices making it possible to test the proper functioning of an ammunition launcher.

Pour assurer la protection rapprochée des véhicules blindés, on utilise fréquemment des tubes lanceurs permettant de déployer des munitions telles que des grenades fumigènes ou antipersonnel.To ensure close protection of armored vehicles, launch tubes are frequently used to deploy ammunition such as smoke or anti-personnel grenades.

Ces tubes lanceurs portent généralement des moyens de fourniture d'énergie électrique qui coopèrent avec des moyens récepteurs d'énergie électrique portés par la munition.These launch tubes generally carry electrical energy supply means which cooperate with electrical energy receiving means carried by the munition.

Ces moyens pourront être par exemple des contacts électriques ou bien un système inductif (tel celui décrit par le brevet FR2438820) ou encore un système capacitif (tel que décrit par le brevet FR2593908).These means could for example be electrical contacts or an inductive system (such as that described by patent FR2438820) or even a capacitive system (as described by patent FR2593908).

Les moyens de fourniture d'énergie conduisent à la munition un courant électrique destiné en particulier à assurer la mise à feu d'une charge propulsive d'éjection de La munition hors du tube.The energy supply means conduct an electric current to the munition intended in particular to ignite a propellant charge for ejecting the munition from the tube.

Ils permettent aussi de vérifier la présence d'une munition dans le lanceur et éventuellement de déterminer le type de munition qui est présent.They also make it possible to verify the presence of ammunition in the launcher and possibly to determine the type of ammunition that is present.

Il est très difficile aujourd'hui d'assurer de façon simple, rapide et fiable le contrôle du bon fonctionnement de tels lanceurs.It is very difficult today to ensure in a simple, fast and reliable way the control of the good functioning of such launchers.

En effet, d'une part, en l'absence de tir, il doit circuler dans la munition un courant inférieur à 100 milliampères, courant permettant de détecter la présence de la munition et ne devant pas entraîner un tir intempestif.Indeed, on the one hand, in the absence of fire, it must circulate in the munition a current lower than 100 milliamperes, current making it possible to detect the presence of the ammunition and not having to involve an untimely shooting.

D'autre part, le déclenchement de tir met en oeuvre un courant dont l'intensité doit être (pour des raisons de sécurité) d'au moins 3 ampères pendant au moins 15 millisecondes.On the other hand, the firing trigger implements a current whose intensity must be (for safety reasons) of at least 3 amperes for at least 15 milliseconds.

Le bon fonctionnement du lanceur n'est effectif que lorsque ces deux conditions sont respectées.The proper functioning of the launcher is only effective when these two conditions are met.

Les moyens de contrôle connus mettent en oeuvre des bancs de mesure d'intensité qui sont encombrants, coûteux et difficiles à utiliser par des personnels non formés.The known control means use intensity measurement benches which are bulky, costly and difficult to use by untrained personnel.

D'autres moyens de contrôles classiques utilisent une lampe test qui permet de vérifier la fourniture de courant par le tube lanceur.Other conventional control means use a test lamp which makes it possible to check the current supply by the starter tube.

Cependant ces derniers moyens ne permettent pas de vérifier le bon fonctionnement du lanceur, c'est à dire la conformité de ses deux intensités d'emploi (repos / tir) avec les valeurs normales.However, these latter means do not make it possible to verify the proper functioning of the launcher, that is to say the conformity of its two intensities of use (rest / shooting) with the normal values.

C'est le but de l'invention que de proposer un dispositif de test ne présentant pas de tels inconvénients.It is the object of the invention to propose a test device which does not have such drawbacks.

Ainsi le dispositif àe test selon l'invention permet une vérification simple, rapide en fiable du bon fonctionnement du lanceur.Thus the test device according to the invention allows a simple, rapid and reliable verification of the proper functioning of the launcher.

Il peut être mis en oeuvre par un personnel non qualifié et il est à la fois peu encombrant et peu coûteux.It can be implemented by unqualified personnel and it is both compact and inexpensive.

Il peut être stocké durant de longues périodes sans perdre sa précision et peut être conservé dans tout véhicule blindé en plus de la dotation en munitions.It can be stored for long periods without losing its accuracy and can be kept in any armored vehicle in addition to the ammunition supply.

Ainsi l'invention a pour objet un dispositif permettant de tester le bon fonctionnement d'un lanceur constitué d'un tube pouvant recevoir une munition et à l'intérieur duquel sont disposés des moyens de fourniture d'énergie électrique à la munition destinés en particulier à permettre sa mise à feu, ce dispositif est caractérisé en ce qu'il est constitué par un corps ayant sensiblement la forme d'une munition et comportant des moyens récepteurs d'énergie électrique coopérant avec les moyens de fourniture d'énergie du tube lanceur, moyens récepteurs reliés à une électronique de test disposée à l'intérieur du corps.Thus, the subject of the invention is a device making it possible to test the proper functioning of a launcher consisting of a tube capable of receiving ammunition and inside which are arranged means for supplying electrical energy to the ammunition intended in particular to allow its ignition, this device is characterized in that it is constituted by a body having substantially the shape of an ammunition and comprising means for receiving electrical energy cooperating with the means for supplying energy to the launcher tube , receiving means connected to a test electronics placed inside the body.

D'une façon préférentielle l'électronique de test est alimentée en énergie par le tube lanceur au travers des moyens récepteurs d'énergie.Preferably, the test electronics are supplied with energy by the launcher tube through energy receiving means.

En particulier, l'électronique de test peut comporter au moins une capacité qui est chargée en énergie par le lanceur, capacité assurant l'alimentation électrique du dispositif de test.In particular, the test electronics can comprise at least one capacity which is charged with energy by the launcher, capacity ensuring the electrical supply of the test device.

Selon une autre caractéristique, l'électronique de test comporte au moins une première voie de mesure permettant de vérifier que l'intensité du courant reçu du tube lanceur lors de la mise à feu est supérieure à une intensité minimale pendant une durée minimale.According to another characteristic, the test electronics comprises at least a first measurement channel making it possible to verify that the intensity of the current received from the launcher tube during ignition is greater than a minimum intensity for a minimum duration.

Selon une autre caractéristique, l'électronique de test comporte au moins une deuxième voie de mesure permettant de vérifier que l'intensité qui est reçue du tube lanceur de façon permanente en dehors de la mise à feu est inférieure à une intensité maximale.According to another characteristic, the test electronics comprises at least a second measurement channel making it possible to verify that the intensity which is received from the launcher tube permanently outside of the firing is less than a maximum intensity.

Avantageusement, l'électronique de test comprend un commutateur électronique de puissance permettant de commuter le courant fourni par les moyens récepteurs d'énergie électrique vers l'une ou l'autre des voies de mesure.Advantageously, the test electronics comprise an electronic power switch making it possible to switch the current supplied by the means for receiving electrical energy to one or the other of the measurement channels.

Le temps de fermeture du commutateur de puissance sera choisi au moins égal à la durée minimale.The closing time of the power switch will be chosen at least equal to the minimum duration.

Le dispositif comporte avantageusement un commutateur manuel, porté par le corps du dispositif, et permettant de sélectionner l'une ou l'autre des voies de mesures.The device advantageously comprises a manual switch, carried by the body of the device, and making it possible to select one or the other of the measurement channels.

Le résultat des mesures peut être donné par un afficheur solidaire du corps.The results of the measurements can be given by a display secured to the body.

Le dispositif de test pourra comporter un séquenceur assurant le séquencement des opérations de commutation, de mesure et d'affichage du résultat de la mesure.The test device may include a sequencer ensuring the sequencing of the switching, measurement and display operations of the measurement result.

L'invention sera mieux comprise à la lecture de la description qui va suivre d'un mode particulier de réalisation, description faite en référence aux dessins annexés et dans lesquels:

  • la figure 1 est un vue en coupe d'un dispositif de test selon l'invention mis en place dans un tube lanceur,
  • la figure 2 est un schéma synoptique du dispositif de test selon l'invention,
  • les figures 3a et 3b sont des chronogrammes montrant les séquences de fonctionnement, respectivement pour les mesures des courants de mise à feu et de sécurité.
The invention will be better understood on reading the description which follows of a particular embodiment, description made with reference to the appended drawings and in which:
  • FIG. 1 is a sectional view of a test device according to the invention installed in a launcher tube,
  • FIG. 2 is a block diagram of the test device according to the invention,
  • Figures 3a and 3b are timing diagrams showing the operating sequences, respectively for the measurement of firing and safety currents.

En se reportant à la figure 1, un dispositif de test 1 selon l'invention est représenté mis en place dans un tube lanceur 2 de munition.Referring to Figure 1, a test device 1 according to the invention is shown in place in a launcher tube 2 of ammunition.

Le tube lanceur 2 est solidaire d'une paroi 3 d'un véhicule blindé et il est fermé à sa partie arrière par un fond 4 (vissé ou soudé au tube) qui porte des moyens 5 de fourniture d'énergie électrique.The launcher tube 2 is integral with a wall 3 of an armored vehicle and it is closed at its rear part by a bottom 4 (screwed or welded to the tube) which carries means 5 for supplying electrical energy.

Ces moyens sont constitués ici par un connecteur coaxial comportant une broche centrale 5a et une couronne périphérique 5b, séparées par un isolant 5c.These means are constituted here by a coaxial connector comprising a central pin 5a and a peripheral ring 5b, separated by an insulator 5c.

Un tel connecteur n'est représenté ici qu'à titre indicatif car il ne constitue pas l'objet de l'invention.Such a connector is shown here for information only because it does not constitute the subject of the invention.

Il peut être remplacé par tous types de contacts électriques ayant une autre structure (par exemple des contacts à baïonnette) ou encore par un moyen de fourniture d'énergie de nature différente, formé par exemple par une bobine d'induction.It can be replaced by all types of electrical contacts having another structure (for example bayonet contacts) or also by a means of supplying energy of a different nature, formed for example by an induction coil.

Le dispositif de test 1 a la forme externe et l'encombrement d'une munition réelle, ce qui facilite son stockage et sa manipulation.The test device 1 has the external shape and the size of a real munition, which facilitates its storage and handling.

Il est constitué par un corps comprenant une enveloppe tubulaire 6 fermée par un couvercle 7 et un culot 8, fixés à l'enveloppe 6 par exemple par des vis (non représentées).It is constituted by a body comprising a tubular envelope 6 closed by a cover 7 and a base 8, fixed to the envelope 6 for example by screws (not shown).

Le culot 8 porte des moyens récepteurs d'énergie électrique 9 qui sont destinés à coopérer avec les moyens de fourniture d'énergie 5 du tube lanceur.The base 8 carries electrical energy receiving means 9 which are intended to cooperate with the energy supply means 5 of the launcher tube.

Ces moyens sont ici constitués par un connecteur coaxial présentant une broche centrale 9a et une couronne périphérique 9b séparées par un isolant 9c.These means are here constituted by a coaxial connector having a central pin 9a and a peripheral ring 9b separated by an insulator 9c.

Dans le cas de moyens de transmission inductifs, le dispositif de test porterait une bobine réceptrice qui se trouverait en couplage inductif avec la bobine émettrice du tube lanceur.In the case of inductive transmission means, the test device would carry a receiving coil which would be in inductive coupling with the emitting coil of the launcher tube.

Le couvercle 7 porte un commutateur manuel à deux positions 10, ainsi qu'un moyen d'affichage du résultat du test, moyen constitué ici par deux voyants 11a,11b (diodes LED) de couleurs différentes (Verte et Rouge).The cover 7 carries a manual switch with two positions 10, as well as a means for displaying the result of the test, means constituted here by two indicator lights 11a, 11b (LEDs) of different colors (Green and Red).

Avantageusement le couvercle 7 est disposé en retrait à l'intérieur de l'enveloppe 6, cela afin d'assurer la protection du commutateur manuel 10 et des afficheurs 11a,11b.Advantageously, the cover 7 is set back inside the envelope 6, this in order to ensure the protection of the manual switch 10 and of the displays 11a, 11b.

Le corps du dispositif de test renferme une carte électronique portant un circuit électronique de test 12 qui est relié aux contacts 9a, 9b du connecteur 9 par les conducteurs 14a,14b ainsi qu'au commutateur manuel 10 et aux voyants 11a,11b.The body of the test device contains an electronic card carrying an electronic test circuit 12 which is connected to the contacts 9a, 9b of the connector 9 by the conductors 14a, 14b as well as to the manual switch 10 and to the LEDs 11a, 11b.

Tout l'espace libre à l'intérieur du corps du dispositif est rempli d'un matériau plastique 13 isolant et amortisseur tel une résine d'enrobage.All the free space inside the body of the device is filled with an insulating and damping plastic material 13 such as a coating resin.

Le matériau de remplissage est versé dans l'enveloppe 6 après positionnement du circuit 12 et mise en place des liaisons électriques. Le couvercle 7 est ensuite fixé à l'Enveloppe par un moyen de liaison approprié non représenté (par exemple des vis).The filling material is poured into the envelope 6 after positioning the circuit 12 and setting up the electrical connections. The cover 7 is then fixed to the envelope by an appropriate connecting means, not shown (for example screws).

La figure 2 est un schéma synoptique du circuit électronique de test 12.FIG. 2 is a block diagram of the electronic test circuit 12.

Un des contacts 9b est le point commun à l'ensemble du circuit, l'autre contact 9a alimente une capacité 15 qui est destinée à fournir de l'énergie à l'ensemble du circuit 12.One of the contacts 9b is the point common to the whole of the circuit, the other contact 9a supplies a capacitor 15 which is intended to supply energy to the whole of the circuit 12.

Ainsi le dispositif de test selon l'invention ne contient aucune source d'énergie (pile, batterie) susceptible de se dégrader ou décharger lors du stockage. L'énergie nécessaire au fonctionnement des circuits est empruntée au réseau de bord du véhicule au moment du test et stockée dans la capacité 15.Thus, the test device according to the invention does not contain any energy source (battery, battery) liable to degrade or discharge during storage. The energy necessary for the operation of the circuits is borrowed from the on-board network of the vehicle at the time of the test and stored in capacity 15.

Il en résulte une excellente tenue au stockage du dispositif de test et une simplification de la logistique.This results in an excellent storage behavior of the test device and a simplification of logistics.

Le circuit de test comprend une première voie de mesure 16 et une deuxième voie de mesure 17.The test circuit includes a first measurement channel 16 and a second measurement channel 17.

Le courant fourni par les contacts est appliqué à un commutateur de puissance 18 qui a pour fonction de commuter le courant fourni par les contacts dans l'une ou l'autre des voies de mesure durant le temps nécessaire à la mesure. Ce commutateur est constitué par exemple par un transistor de puissance.The current supplied by the contacts is applied to a power switch 18 which has the function of switching the current supplied by the contacts in one or the other of the measurement channels during the time necessary for the measurement. This switch is constituted for example by a power transistor.

Chaque voie de mesure 16,17 est constituée par un capteur de courant de type connu qui réalise une mesure de l'intensité par la mesure de la tension aux bornes d'une résistance calibrée.Each measurement channel 16, 17 is constituted by a current sensor of known type which measures the intensity by measuring the voltage across a calibrated resistor.

Ces capteurs sont pilotables par un signal de commande qui déclenche le début de la mesure et ils fournissent une tension représentative de l'intensité mesurée.These sensors are controllable by a control signal which triggers the start of the measurement and they supply a voltage representative of the measured intensity.

La sélection de la mesure à effectuer et donc de la voie de mesure à activer s'effectue par l'intermédiaire du commutateur manuel 10.Selection of the measurement to be carried out and therefore of the channel measurement to be activated is carried out via manual switch 10.

La première voie de mesure 16 est destinée à mesurer le courant de mise à feu (I) qui pour être suffisant (permettre la mise à feu de la munition) doit être supérieur à une intensité minimale Im (de l'ordre de 3 ampères) pendant une durée minimale Tm (de l'ordre de 15 millisecondes).The first measurement channel 16 is intended to measure the firing current (I) which, to be sufficient (to allow the firing of the ammunition) must be greater than a minimum intensity Im (of the order of 3 amps) for a minimum duration Tm (of the order of 15 milliseconds).

Un premier comparateur 21 permet de comparer la valeur mesurée à une consigne fournie par un circuit de référence de tension 20 qui est composé par exemple d'une diode de référence de tension associée à un diviseur potentiométrique.A first comparator 21 makes it possible to compare the measured value with a setpoint supplied by a voltage reference circuit 20 which is composed for example of a voltage reference diode associated with a potentiometric divider.

La durée Tm de la mesure est obtenue par un séquenceur 19 de type connu qui comprend un oscillateur à quartz et un compteur.The duration Tm of the measurement is obtained by a sequencer 19 of known type which includes a quartz oscillator and a counter.

Durant la durée Tm, e signal résultant de la comparaison entre la mesure et la consigne est échantillonné par l'oscillateur du séquenceur 19 pour incrémenter un compteur 25, l'échantillonnage sera par exemple réalisé à l'aide d'une porte logique ET. Le compteur ne s'incrémente donc à chaque créneau d'horloge que si le comparateur fournit un signal logique "1" signifiant que le courant mesuré est correct.During the duration Tm, the signal resulting from the comparison between the measurement and the setpoint is sampled by the oscillator of the sequencer 19 to increment a counter 25, the sampling will for example be carried out using an AND logic gate. The counter therefore increments at each clock slot only if the comparator supplies a logic signal "1" signifying that the measured current is correct.

Pour commander un circuit d'affichage 22, on utilise une des sorties du compteur 25 qui passe à un niveau logique "1" pour un niveau de comptage suffisant compte tenu de la durée Tm (donc lorsque le courant mesuré a été correct pendant la durée Tm).To control a display circuit 22, one of the outputs of the counter 25 is used which goes to a logic level "1" for a sufficient counting level taking into account the duration Tm (therefore when the measured current has been correct for the duration Tm).

Le circuit d'affichage 22 est piloté par le séquenceur 19 et il assure l'allumage de l'un ou l'autre des afficheurs Led (11a ou 11b) en fonction du signal fourni par le compteur 25 à l'issue de la durée de mesure Tm (le niveau "1" fourni par le compteur 25 commande l'allumage de la Led verte, le signal "0", l'allumage de la Led rouge).The display circuit 22 is controlled by the sequencer 19 and it switches on one or other of the Led displays (11a or 11b) according to the signal supplied by the counter 25 at the end of the duration measurement Tm (level "1" supplied by the counter 25 controls the lighting of the green LED, the signal "0", the lighting of the red Led).

La deuxième voie de mesure 17 a un fonctionnement analogue. Elle est destinée à mesurer le courant de sécurité qui circule dans la munition lorsqu'elle est mise en place dans le tube et que la mise à feu n'est pas demandée. Pour être correct (ne pas provoquer de mise à feu intempestive) ce courant (i) ne doit pas dépasser une valeur maximale iM (iM de l'ordre de 100 milliampères).The second measurement channel 17 has a similar operation. It is intended to measure the safety current which circulates in the ammunition when it is put in place in the tube and when firing is not requested. To be correct (do not cause inadvertent ignition) this current (i) must not exceed a maximum value i M (i M of the order of 100 milliamps).

Une autre circuit de référence de tension 23 montage potentiomètrique) génère une consigne de tension qui est image de la valeur de l'intensité maximale iM. Un deuxième comparateur 24 compare cette valeur avec la valeur mesurée par le circuit de mesure 17 et fournit un signal qui est échantillonné par l'oscillateur du séquenceur 19 pour incrémenter le compteur 25, qui délivre le signal de commande du circuit d'affichage 22.Another voltage reference circuit 23 potentiometric mounting) generates a voltage setpoint which is an image of the value of the maximum current iM. A second comparator 24 compares this value with the value measured by the measurement circuit 17 and provides a signal which is sampled by the oscillator of the sequencer 19 to increment the counter 25, which delivers the control signal from the display circuit 22.

Le commutateur de puissance 18, ainsi que les voies de mesure 16 et 17 et le circuit d'affichage 22, sont pilotés par le séquenceur 19 qui, tel un microprocesseur, assure le séquencement des différentes opérations.The power switch 18, as well as the measurement channels 16 and 17 and the display circuit 22, are controlled by the sequencer 19 which, like a microprocessor, ensures the sequencing of the various operations.

La figure 3a est un chronogramme qui représente l'enchaînement temporel des opérations lorsque la première voie de mesure est choisie.FIG. 3a is a timing diagram which represents the temporal sequence of operations when the first measurement channel is chosen.

L'utilisateur qui a mis la munition en place peut tout d'abord vérifier que le circuit électrique du véhicule détecte bien la présence de la munition de test (allumage d'un voyant "présence munition" sur son pupitre de commande).The user who installed the ammunition can first of all check that the vehicle's electrical circuit detects the presence of the test ammunition (lighting of an "ammunition presence" indicator on his control console).

Il a choisi la position du commutateur manuel 10 qui correspond au test du courant de mise à feu.He chose the position of the manual switch 10 which corresponds to the test of the firing current.

Il appuie sur le bouton de mise à feu pendant une durée d'au moins 1 seconde (ce qui correspond au créneau 26).He presses the ignition button for at least 1 second (which corresponds to time slot 26).

Cette action assure la présence du courant du réseau de bord du véhicule aux contacts du dispositif pendant une durée suffisante pour assurer la charge du condensateur 15.This action ensures the presence of the current from the vehicle's on-board network at the contacts of the device for a sufficient time to charge the capacitor 15.

Au bout d'environ 550 millisecondes (temps nécessaire à la stabilisation des fonctions internes), le circuit de test 16, commandé par le séquenceur 19, réalise la mesure (créneau 27).After approximately 550 milliseconds (time necessary for the stabilization of the internal functions), the test circuit 16, controlled by the sequencer 19, performs the measurement (slot 27).

A l'issue de la durée Tm (15 ms) de ce créneau, l'affichage du voyant rouge ou vert est commandé par le séquenceur 19 (créneau 28).At the end of the duration Tm (15 ms) of this slot, the display of the red or green LED is controlled by the sequencer 19 (slot 28).

Cet affichage persiste pendant 1 à 2 secondes après le relâchement du bouton de mise à feu. Cette durée correspond à la décharge du condensateur 15 dans les organes de visualisation (Led 11a ou 11b).This display persists for 1 to 2 seconds after the release of the firing button. This duration corresponds to the discharge of the capacitor 15 in the display members (Led 11a or 11b).

La figure 3b est un chronogramme qui représente l'enchaînement temporel des opérations lorsque la deuxième voie de mesure est choisie.FIG. 3b is a timing diagram which represents the temporal sequence of operations when the second measurement channel is chosen.

L'utilisateur a positionné le commutateur manuel 10 sur la position correspondant à la mesure du courant de sécurité.The user has positioned the manual switch 10 in the position corresponding to the measurement of the safety current.

Il appuie sur le bouton de mise à feu pendant une durée de l'ordre de 1 sec (créneau 29).He presses the firing button for a period of around 1 sec (slot 29).

Le dispositif utilise alors l'énergie fournie par le tube de lancement pour charger la capacité 15.The device then uses the energy supplied by the launch tube to charge the capacity 15.

Lorsque l'utilisateur relâche le bouton de mise à feu, le circuit de test 17, commandé par le séquenceur 19, effectue la mesure du courant de sécurité (créneau 30), et cela pendant une durée de mesure Tm.When the user releases the firing button, the test circuit 17, controlled by the sequencer 19, performs the measurement of the safety current (slot 30), and this for a measurement duration Tm.

La détection du relâchement du bouton est effectuée par un autre circuit comparateur (non représenté sur le schéma de la figure 2) et qui détecte la disparition de l'énergie fournie par le tube de lancement.The release of the button is detected by another comparator circuit (not shown in the diagram in FIG. 2) and which detects the disappearance of the energy supplied by the launch tube.

A l'issue de la durée Tm (15 ms) du créneau 30, l'affichage du voyant rouge ou vert est commandé par le séquenceur 19 (créneau 31). L'affichage persiste pendant une certaine durée correspondant à la décharge du condensateur 15 dans les organes de visualisation (LED 11a ou 11b).At the end of the duration Tm (15 ms) of the slot 30, the display of the red or green LED is controlled by the sequencer 19 (slot 31). The display persists for a certain period corresponding to the discharge of the capacitor 15 in the display members (LED 11a or 11b).

On voit que le dispositif de test selon l'invention permet de réaliser d'une façon extrêmement simple toutes les opérations de test du lanceur.It can be seen that the test device according to the invention allows all the launcher test operations to be carried out in an extremely simple manner.

La seule action demandée à l'opérateur est d'appuyer sur le bouton de mise à feu et cela aussi bien pour le test du courant de mise à feu que pour celui du courant de sécurité.The only action required of the operator is to press the firing button, both for testing the firing current and for the safety current.

Le résultat de la mesure lui est présenté de façon simple par les deux voyants.The result of the measurement is presented to him in a simple manner by the two LEDs.

Le dispositif de test est mis en oeuvre comme une munition normale et n'est pas plus encombrant que celle ci, ce qui autorise son emport dans tous les véhicules.The test device is implemented like normal ammunition and is not more bulky than this one, which allows it to be carried in all vehicles.

Il ne contient aucune source d'énergie et peut donc être stocké indéfiniment sans perte de performances.It contains no energy source and can therefore be stored indefinitely without loss of performance.

A titre de variante, il est possible de définir un dispositif de test ne comportant qu'une seule voie de mesure (par exemple le courant de mise à feu).As a variant, it is possible to define a test device comprising only one measurement channel (for example the firing current).

Claims (10)

Dispositif (1) permettant de tester le bon fonctionnement d'un Lanceur constitué d'un tube pouvant recevoir une munition et à l'intérieur duquel sont disposés des moyens (5) de fourniture d'énergie électrique à la munition destinés en particulier à permettre sa mise à feu, dispositif caractérisé en ce qu' il est constitué par un corps (6,7,8) ayant sensiblement la forme d'une munition et comportant des moyens (9) récepteurs d'énergie électrique coopérant avec les moyens (5) de fourniture d'énergie du tube lanceur, moyens récepteurs reliés à une électronique de test (12) disposée à l'intérieur du corps.Device (1) for testing the proper functioning of a Launcher consisting of a tube capable of receiving ammunition and inside which are arranged means (5) for supplying electrical energy to the ammunition intended in particular to allow its ignition, device characterized in that it is constituted by a body (6,7,8) having substantially the shape of a munition and comprising means (9) receiving electrical energy cooperating with the means (5 ) of supplying energy to the launcher tube, receiving means connected to test electronics (12) disposed inside the body. Dispositif de test suivant la revendication 1, caractérisé en ce que l'électronique de test (12) est alimentée en énergie par le tube lanceur au travers des moyens récepteurs d'énergie (9).Test device according to Claim 1, characterized in that the test electronics (12) are supplied with energy by the launcher tube through the energy receiving means (9). Dispositif de test suivant la revendication 2, caractérisé en ce que l'électronique de test (12) comporte au moins une capacité (15) qui est chargée en énergie par le lanceur, capacité assurant l'alimentation électrique du dispositif de test.Test device according to claim 2, characterized in that the test electronics (12) comprises at least one capacity (15) which is charged with energy by the launcher, capacity ensuring the electrical supply of the test device. Dispositif de test suivant une des revendications 2 à 3, caractérisé en ce que l'électronique de test (12) comporte au moins une première voie de mesure (16) permettant de vérifier que l'intensité du courant reçu du tube lanceur lors de la mise à feu est supérieure à une intensité minimale (Im) pendant une durée minimale (Tm).Test device according to one of claims 2 to 3, characterized in that the test electronics (12) comprises at least a first measurement channel (16) making it possible to verify that the intensity of the current received from the launcher tube during the ignition is greater than a minimum intensity (Im) for a minimum duration (Tm). Dispositif de test suivant une des revendications 2 à 4, caractérisé en ce que l'électronique de test (12) comporte au moins une deuxième voie de mesure (17) permettant de vérifier que l'intensité qui est reçue du tube lanceur de façon permanente en dehors de la mise à feu est inférieure à une intensité maximale (iM).Test device according to one of Claims 2 to 4, characterized in that the test electronics (12) comprise at least a second measurement channel (17) making it possible to verify that the intensity which is received from the launcher tube permanently outside the firing is less than a maximum intensity (iM). Dispositif de test suivant une des revendications 4 ou 5, caractérisé en ce que l'électronique de test (12) comprend un commutateur électronique de puissance (18) permettant de commuter le courant fourni par les moyens (9) récepteurs d'énergie électrique vers l'une ou l'autre des voies de mesure (16,17).Test device according to one of claims 4 or 5, characterized in that the test electronics (12) comprises an electronic power switch (18) for switching the current supplied by the receiving means (9) electrical energy to one or other of the measurement channels (16,17). Dispositif de test suivant la revendication 6, caractérisé en ce que le temps de fermeture du commutateur de puissance (18) est au moins égal à la durée minimale (Tm).Test device according to claim 6, characterized in that the closing time of the power switch (18) is at least equal to the minimum duration (Tm). Dispositif de test suivant une des revendications 6 ou 7, caractérisé en ce qu'il comporte un commutateur manuel (10) porté par le corps du dispositif et permettant de sélectionner l'une ou l'autre des voies de mesures (16,17).Test device according to one of claims 6 or 7, characterized in that it comprises a manual switch (10) carried by the body of the device and making it possible to select one or the other of the measurement channels (16,17) . Dispositif de test selon une des revendications 1 à 8, caractérisé en ce que le résultat des mesures est donné par un afficheur (11a,11b) solidaire du corps.Test device according to one of Claims 1 to 8, characterized in that the result of the measurements is given by a display (11a, 11b) secured to the body. Dispositif de test selon une des revendications 4 à 9, caractérisé en ce qu'il comporte un séquenceur (19) assurant le séquencement des opérations de commutation, de mesure et d'affichage du résultat de la mesure.Test device according to one of Claims 4 to 9, characterized in that it includes a sequencer (19) ensuring the sequencing of the switching, measurement and display operations of the measurement result.
EP97400518A 1996-04-02 1997-03-07 Functioning testing device for an ammunition launcher Expired - Lifetime EP0800053B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9604115A FR2746911B1 (en) 1996-04-02 1996-04-02 DEVICE FOR TESTING THE OPERATION OF AN AMMUNITION LAUNCHER
FR9604115 1996-04-02

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EP0800053A1 true EP0800053A1 (en) 1997-10-08
EP0800053B1 EP0800053B1 (en) 2001-11-07

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AT (1) ATE208487T1 (en)
DE (1) DE69707953T2 (en)
FR (1) FR2746911B1 (en)

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CN103357138A (en) * 2013-07-25 2013-10-23 成都陵川特种工业有限责任公司 Detection seat of fire extinguishing launcher
CN103357137A (en) * 2013-07-25 2013-10-23 成都陵川特种工业有限责任公司 Apparatus for detecting fire extinguishing launcher
RU2518678C1 (en) * 2013-03-26 2014-06-10 Сергей Михайлович Мужичек Method of determining characteristics of fragmentation field of ammunition and device for its implementation
RU2519617C1 (en) * 2013-03-12 2014-06-20 Сергей Михайлович Мужичек Method for determining characteristics of fragmentation field of ammunition, and device for its implementation
RU2519618C1 (en) * 2013-02-19 2014-06-20 Сергей Михайлович Мужичек Method for determining characteristics of fragmentation field of ammunition, and device for its implementation
RU2519608C1 (en) * 2013-02-13 2014-06-20 Сергей Михайлович Мужичек Method for determining characteristics of fragmentation field of ammunition, and device for its implementation
RU2519611C1 (en) * 2013-02-26 2014-06-20 Сергей Михайлович Мужичек Method for determining characteristics of fragmentation field of ammunition, and device for its implementation
RU2519615C1 (en) * 2013-02-12 2014-06-20 Сергей Михайлович Мужичек Method for determining characteristics of fragmentation field of ammunition, and device for its implementation
RU2521460C1 (en) * 2013-04-18 2014-06-27 Сергей Михайлович Мужичек Method of remote ammunition incendiary effect estimation and device to this end
RU2521932C1 (en) * 2013-04-05 2014-07-10 Сергей Михайлович Мужичек Method of remote ammunition piercing effect estimation and device to this end
RU2593046C2 (en) * 2011-03-29 2016-07-27 Динаэнерджетикс Гмбх Унд Ко. Кг Package for cumulative charges

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Publication number Priority date Publication date Assignee Title
RU2593046C2 (en) * 2011-03-29 2016-07-27 Динаэнерджетикс Гмбх Унд Ко. Кг Package for cumulative charges
US9945651B2 (en) 2011-03-29 2018-04-17 Dynaenergetics Gmbh & Co. Kg Packing for hollow charges
RU2519615C1 (en) * 2013-02-12 2014-06-20 Сергей Михайлович Мужичек Method for determining characteristics of fragmentation field of ammunition, and device for its implementation
RU2519608C1 (en) * 2013-02-13 2014-06-20 Сергей Михайлович Мужичек Method for determining characteristics of fragmentation field of ammunition, and device for its implementation
RU2519618C1 (en) * 2013-02-19 2014-06-20 Сергей Михайлович Мужичек Method for determining characteristics of fragmentation field of ammunition, and device for its implementation
RU2519611C1 (en) * 2013-02-26 2014-06-20 Сергей Михайлович Мужичек Method for determining characteristics of fragmentation field of ammunition, and device for its implementation
RU2519617C1 (en) * 2013-03-12 2014-06-20 Сергей Михайлович Мужичек Method for determining characteristics of fragmentation field of ammunition, and device for its implementation
RU2518678C1 (en) * 2013-03-26 2014-06-10 Сергей Михайлович Мужичек Method of determining characteristics of fragmentation field of ammunition and device for its implementation
RU2521932C1 (en) * 2013-04-05 2014-07-10 Сергей Михайлович Мужичек Method of remote ammunition piercing effect estimation and device to this end
RU2521460C1 (en) * 2013-04-18 2014-06-27 Сергей Михайлович Мужичек Method of remote ammunition incendiary effect estimation and device to this end
CN103357138A (en) * 2013-07-25 2013-10-23 成都陵川特种工业有限责任公司 Detection seat of fire extinguishing launcher
CN103357137A (en) * 2013-07-25 2013-10-23 成都陵川特种工业有限责任公司 Apparatus for detecting fire extinguishing launcher

Also Published As

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FR2746911A1 (en) 1997-10-03
ATE208487T1 (en) 2001-11-15
DE69707953D1 (en) 2001-12-13
EP0800053B1 (en) 2001-11-07
DE69707953T2 (en) 2002-05-29
FR2746911B1 (en) 1998-05-22

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