A percussion fuse (10) for a shell has a fuse body (12), a detonator system with a priming charge (16) in the bottom section (12c) of the fuse body (12), and a firing pin (24) in the head section (12a) of the fuse body (12). The firing pin (24) has a pin rod (26), with a piercing tip (27), and a pin head (25), wherein the firing pin (24) can be moved in the direction of the detonator system (16) in the case of the percussion fuse (20) striking a target, in order that the piercing tip (27) of the firing pin (24) pierces the priming charge in the detonator system (16). In order to improve impact sensing, in particular even in the case of striking a target at a shallow angle, the percussion fuse (10) additionally has a pressure element which is arranged loosely between the head end (12b) of the fuse body (12) and the pin head (25) of the firing pin (24), and is configured and arranged in the head section (12a) of the fuse body (12) in such a way that it can tilt relative to the fuse body (12) and relative to the pin head (25) of the firing pin (24), with the result that, in the case of a deformation of the head section (12a) of the fuse body (12) during striking of a target, it presses in a straight line on the pin head (25) of the firing pin, without tilting the pin head relative to the longitudinal axis (18) of the fuse body (12).
A percussion fuse (10) for a shell has a fuse body (12), a detonator system with a priming charge (16) in the bottom section (12c) of the fuse body (12), and a firing pin (24) in the head section (12a) of the fuse body (12). The firing pin (24) has a pin rod (26), with a piercing tip (27), and a pin head (25), wherein the firing pin (24) can be moved in the direction of the detonator system (16) in the case of the percussion fuse (20) striking a target, in order that the piercing tip (27) of the firing pin (24) pierces the priming charge in the detonator system (16). In order to improve impact sensing, in particular even in the case of striking a target at a shallow angle, the percussion fuse (10) additionally has a pressure element which is arranged loosely between the head end (12b) of the fuse body (12) and the pin head (25) of the firing pin (24), and is configured and arranged in the head section (12a) of the fuse body (12) in such a way that it can tilt relative to the fuse body (12) and relative to the pin head (25) of the firing pin (24), with the result that, in the case of a deformation of the head section (12a) of the fuse body (12) during striking of a target, it presses in a straight line on the pin head (25) of the firing pin, without tilting the pin head relative to the longitudinal axis (18) of the fuse body (12).
42 - Scientific, technological and industrial services, research and design
Goods & Services
Mechanical, electromechanical and electronic fuses and fusing systems for explosive charges and ammunition, especially artillery, mortar, rocket and tank ammunitions, infantry grenades, bombs, guided munitions and missiles, smart-fused munitions, and counter-mobility munitions; Fusing devices, fusing safety devices, and fusing arming and firing devices for warheads of missiles, torpedos and guided weapons; Ignition safety devices for rocket motors; Components and subassemblies for aforementioned fuses, fusing systems, fusing devices, fusing safety devices, and fusing arming and firing devices, especially micromechanical systems, actuators, clockwork mechanisms, sensors, embedded electronics and software Design, development and providing information related to the design and development documentation of hardware and software for military equipment; Research and development in the military sector; Engineering services, namely, engineering
09 - Scientific and electric apparatus and instruments
13 - Firearms; explosives
42 - Scientific, technological and industrial services, research and design
Goods & Services
Components and subassemblies for fuzes, fuzing systems, fuzing devices, safety, arming and firing devices, namely software. Mechanical, electromechanical and electronic fuzes and fuzing systems for explosive charges and ammunition, especially artillery, mortar, rocket and tank am munitions, infantry grenades, bombs, guided munitions and missiles, smart-fuzed munitions, and counter-mobility munitions; fuzing devices and safety, arming and firing devices for warheads of missiles, torpedos and guided weapons; ignition safety devices for rocket motors; components and subassemblies for aforementioned fuzes, fuzing systems, fuzing devices, safety, arming and firing devices, especially micromechanical systems, actuators, clockwork mechanisms, sensors and embedded electronics. Design, development and documentation of hardware and software for military equipment; research and development in the military sector; engineering services.
5.
Electronic circuit and method for determining an impedance
An electronic circuit is arranged in an external programming device and is used for contactless programming of a circuit to be programmed. The electronic circuit has a series resonant circuit that includes a transmitter coil and a capacitor. The transmitter coil of the series resonant circuit is used for inductive coupling to a receiver coil in the circuit to be programmed. For the purpose of evaluating the impedance that actually exists in the circuit to be programmed, there is provided a device for determining the value of the impedance from a phase difference between the control voltage of the series resonant circuit and the capacitor voltage of the series resonant circuit.
G01R 27/28 - Measuring attenuation, gain, phase shift, or derived characteristics of electric four-pole networks, i.e. two-port networks; Measuring transient response
G01R 27/02 - Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
G01V 3/10 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
G01R 25/00 - Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
H02H 3/38 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to phase angle between voltage and current
A safety device for a fuze of a projectile that includes a detonating device for detonating the fuze. The safety device has a safety unit with a processor for safeguarding a detonation process of the detonating device. The safety unit contains a sensor unit configured to output a disengagement signal at a predetermined acceleration state. The processor is set up to output a control signal to release the safety unit in accordance with the presence of the disengagement signal. A low-acceleration state of the flight of the projectile can thus be detected and used as release parameter.
F42C 15/24 - Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by inertia means
F42C 15/40 - Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected electrically
42 - Scientific, technological and industrial services, research and design
Goods & Services
Mechanical, electromechanical and electronic fuses for projectiles, rockets, missiles, mines, submunitions and explosive ordinance disposal apparatus; primings; safety and arming devices for fuses for projectiles, rockets, missiles, mines, submunitions and explosive ordinance disposal apparatus; mechanical and electromechanical drives, timing mechanisms, actuators and sensors for fuses, namely, fuses for projectiles, rockets, missiles, mines, submunitions and explosive ordinance disposal apparatus and safety and arming devices for fuses, namely, fuses for projectiles, rockets, missiles, mines, submunitions and explosive ordinance disposal apparatus; electronic timing and switching mechanisms, sensors and transmitters for fuses, namely, fuses for projectiles, rockets, missiles, mines, submunitions and explosive ordinance disposal apparatus and safety and arming devices for fuses, namely, fuses for projectiles, rockets, missiles, mines, submunitions and explosive ordinance disposal apparatus [ Design and development of computer hardware and software for military equipment; development and updating of computer software; research and development of new products for others in the military sector; services of an engineer in the field of support and development of military equipment; services of a physicist, namely, research in the field of physics ]
42 - Scientific, technological and industrial services, research and design
Goods & Services
Mechanical, electromechanical and electronic detonators for projectiles, Missiles, Missiles, Mines,Submunitions and mine sweepers; Time fuses; Safety devices for detonators; Mechanical and electromechanical running gears, timing mechanisms, actuators and sensors for detonators and safety devices for detonators; Electronic timing mechanisms and switching mechanisms, sensors and transmitters for detonators and safety devices for detonators. Design, development and documentation of hardware and software for military apparatus; Developing and updating computer software; Research and development in the military sector; Engineering services; Physics research.
9.
ELECTRONIC CIRCUIT AND METHOD FOR DETERMINING IMPEDANCE
The invention relates to an electronic circuit which is arranged in an external programming device and is used for the non-contact programming of a switching circuit to be programmed. The circuit provides a series resonant circuit which has a transmitter coil (Ls) and a capacitor (C), the transmitter coil (Ls) of the series resonant circuit being used for inductive coupling with a receiver coil (Le) arranged in the switching circuit be programmed. In order to estimate the impedance (R) currently present in the switching circuit to be programmed, means (D1, D2) are provided in order to determine said impedance from a phase shift between the control voltage of the series resonant circuit and a capacitor voltage of the series resonant circuit. The invention further relates to a method for determining the impedance.
The invention relates to a safety device (2) for a fuse (4) of a projectile, which comprises a detonating device for detonating the fuse (4), comprising a safety unit having a processing means (34) for safeguarding a detonation process of the detonating device. According to the invention, the safety unit contains a sensor unit (38) which is set up to output a disengagement signal at a predetermined acceleration state, wherein the processing means (34) is set up to output a control signal to release the safety unit in accordance with the presence of the disengagement signal. A low-acceleration state of the flight of the projectile can thus be detected and used as release parameter.
F42C 15/184 - Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a carrier for an element of the pyrotechnic or explosive train is moved using a slidable carrier
F42C 15/24 - Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by inertia means
F42C 15/40 - Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected electrically
The invention relates to a safety device (2) for a fuse (4) of a projectile, which comprises a detonating device for detonating the fuse (4), comprising a safety unit having a processing means (34) for safeguarding a detonation process of the detonating device. According to the invention, the safety unit contains a sensor unit (38) which is set up to output a disengagement signal at a predetermined acceleration state, wherein the processing means (34) is set up to output a control signal to release the safety unit in accordance with the presence of the disengagement signal. A low-acceleration state of the flight of the projectile can thus be detected and used as release parameter.
F42C 15/184 - Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a carrier for an element of the pyrotechnic or explosive train is moved using a slidable carrier
F42C 15/24 - Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by inertia means
F42C 15/40 - Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected electrically
12.
ELECTRONIC CIRCUIT FOR TIMER APPLICATIONS HAVING MINIMAL POWER CONSUMPTION AND METHODS FOR CALIBRATING AND OPERATING THE SAME
The invention relates to a method for calibrating and to a method for operating an externally programmable electronic circuit, and to an externally programmable electronic circuit equipped to execute said methods. The externally programmable electronic circuit comprises a first oscillator (RCO) and at least one second oscillator (NFO), wherein the second frequency (1/T) of the second oscillator (NFO) is lower than the frequency (1/To) of the first oscillator (RCO). After a programmable time (tP) has expired, the circuit brings about the execution of a predetermined action by outputting a corresponding output signal, wherein the programming is done by modulation of a carrier frequency (fT). For calibration, the current period duration (TO) of the first oscillator (RCO) and a ratio corresponding to the ratio between the period duration (TO) of the first oscillator (RCO) and the period duration (T) of the second oscillator (NFO) are determined based on the known carrier frequency (fT). During the operation of the circuit, the time (tP) is programmed after or during calibration by way of modulation of the carrier frequency, wherein, after completion of the calibration and a start signal, the progression of the transmitted time (tP) is such that a corresponding fourth periodicity (M-1) of the second oscillator (NFO) and a corresponding third periodicity (q) of the at most intermittently parallel operating first oscillator (RCO) are counted.
G04F 1/00 - Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers
G04F 10/00 - Apparatus for measuring unknown time intervals by electric means
F42C 11/06 - Electric fuzes with time delay by electric circuitry
A safety and arming unit for a fuze of a projectile has a rotor for interruption of a firing chain. The rotor can rotate from a safe position to an armed position. In order to allow the safety and arming unit to be designed to be physically compact and such that it can be assembled easily, it is proposed that it has a first and a second rotor safety device which each engage in the rotor in order to block rotor rotation to the armed position, wherein the first rotor safety device is designed to carry out a release movement by virtue of its inertia during a launch acceleration of the projectile, and the second rotor safety device has a pyrotechnic charge for producing a release movement.
F42C 15/34 - Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by a blocking-member in the pyrotechnic or explosive train between primer and main charge
The invention relates to a fuze (2) for a projectile, having a fuze train, having an interruptor (18) for interrupting the fuze train, the interruptor being designed to snap from a safety position into a live position when unlocked, and having a locking means (28) to lock the interruptor (18) in the safety position and to unlock the interruptor by means of an unlocking movement. In order to create a compact and reliable fuze (2), it is suggested that the unlocking movement of the locking means (28) is an axial movement.
F42C 15/00 - Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
F42C 15/188 - Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a carrier for an element of the pyrotechnic or explosive train is moved using a rotatable carrier
F42C 15/24 - Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by inertia means
F42C 15/34 - Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by a blocking-member in the pyrotechnic or explosive train between primer and main charge
A fuze for a projectile has a firing assembly for firing a main charge of the projectile and a delay detonator for firing the firing assembly after a delay time which is defined by a burning distance of a delay charge. The delay detonator has a housing with a fuze half in which it is fired and a detonator half which contains a detonator charge for firing the firing assembly. In order to prevent the projectile from misfiring as a result of premature detonation of the delay detonator, the housing has a relief opening in the fuze half, with an opening cross section that can be passed through freely in the firing state of the delay detonator.
F42C 9/10 - Time fuzes; Combined time- and percussion- or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by combustion
The invention relates to a fuze (2) for a projectile having a firing arrangement (54) for firing a main charge of the projectile and having a delay detonator (10) for firing the firing arrangement (54) after a delay time which is defined by a burning distance (64) of a delay charge (30), with the delay detonator (10) having a housing (26) with a fuze half (60) in which it is fired and having a detonator half (62) which contains a detonator charge (34) for firing the firing arrangement (54). In order to prevent the projectile from misfiring as a result of premature detonation of the delay detonator (10), it is proposed that the housing (26) have a relief opening (40) in the fuze half (60), with an opening cross section which can be passed through freely in the firing state of the delay detonator (10).
A safety and arming unit for a fuse includes a firing chain having first and second firing devices defining an intermediate space therebetween and a barrier blocking the intermediate space in a safe position. The firing chain is brought into an armed position by a releasing movement vacating the intermediate space. First and second mutually independent securing devices lock the barrier in the safe position and execute an unlocking action based on two mutually independent physical arming parameters. A compact and very reliable safety and arming unit can be achieved in this way.
F42C 15/34 - Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by a blocking-member in the pyrotechnic or explosive train between primer and main charge
The invention is based on a safety and arming unit (2, 74) for a fuze, comprising a firing chain (8) with firing means (10) and a barrier (16, 76) which is locked in its safe position by first securing means (24) and second securing means (26), independent of the first, which are provided for an unlocking action based on two physical arming parameters which are independent of one another. It is proposed that the firing chain (8) comprises second firing means (14) and the barrier (16, 76) blocks an intermediate space (62) between the two firing means (10, 14) in a safe position, and the firing chain can be brought into an armed position by a releasing movement which vacates the intermediate space (62). A compact and very reliable safety and arming unit (2, 74) can be achieved by these means.
F42C 15/34 - Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by a blocking-member in the pyrotechnic or explosive train between primer and main charge
A penetration-capable projectile has a casing and a fuze with a fuze housing lower part. An interface area between the casing of the projectile and the fuze housing lower part is formed with a shape and/or strength modification which prevents the fuze housing lower part from being pushed into the casing on impact with a target that is to be penetrated.
F42B 10/00 - Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
A projectile (10) with a penetration capability and having a fuze (15) which has a fuze housing lower part (14) is described, with the interface area (50) between a casing (52) of the projectile (10) and the fuze housing lower part (14) being formed with a shape and/or strength modification which prevents the fuze housing lower part (14) from being pushed into the casing (52) on impact with a target that is to be penetrated.
F42B 12/04 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type
21.
Activatable battery for an electronic artillery fuse
An activatable battery for an electronic artillery fuse and mortar fuse includes an ampoule filled with an electrolyte, and an activation device for rupturing the ampoule. In order to evaluate the duration of a mechanical impulse acting on the battery, the activation device can be freed by a timing member having an inertia body which is axially and rotatably displaceable and against which a compression spring is operative. A compact structure and reliable installation of the ampoule in the battery is achieved in that the battery has an upper battery portion and a lower battery portion, the activation device is provided in the upper battery portion and the ampoule is disposed immovably in the lower battery portion.
A projectile fuze (12) having fuze electronics in which the time of flight (T) can be programmed, having a timer/counter which counts up to the programmed time of flight (T)—minus a defined time value (Δt)—and then charges an electrical firing circuit, and having a mechanical safety and arming unit (16) which switches a firing chain to the armed position after a specific time interval. The firing chain has an electrical detonator (24), a fuze needle (20), a piercing detonator (22) and a booster charge (26). The projectile fuze (12) has a pyrotechnic force element (14), which is interconnected with the fuze electronics and mechanically blocks the safety and arming unit (16) until the time of flight (T) minus the predetermined time value (Δt) is reached, after which the electrical firing circuit is charged and the safety and arming unit (16) is unlocked to the armed position by initiation of the force element (14).
F42C 15/34 - Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by a blocking-member in the pyrotechnic or explosive train between primer and main charge
F42C 15/24 - Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by inertia means
