EP0309734A1 - Méthode pour l'allumage d'un projectile dans la proximité d'une cible - Google Patents

Méthode pour l'allumage d'un projectile dans la proximité d'une cible Download PDF

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Publication number
EP0309734A1
EP0309734A1 EP88113771A EP88113771A EP0309734A1 EP 0309734 A1 EP0309734 A1 EP 0309734A1 EP 88113771 A EP88113771 A EP 88113771A EP 88113771 A EP88113771 A EP 88113771A EP 0309734 A1 EP0309734 A1 EP 0309734A1
Authority
EP
European Patent Office
Prior art keywords
projectile
target
speed
encounter
trajectory
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP88113771A
Other languages
German (de)
English (en)
Inventor
Klaus Münzel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rheinmetall Air Defence AG
Original Assignee
Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Werkzeugmaschinenfabrik Oerlikon Buhrle AG filed Critical Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Publication of EP0309734A1 publication Critical patent/EP0309734A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C13/00—Proximity fuzes; Fuzes for remote detonation
    • F42C13/04—Proximity fuzes; Fuzes for remote detonation operated by radio waves

Definitions

  • the invention relates to a device for firing a projectile G in the vicinity of a target Z, with a device DS located in the projectile G for determining the encounter speed VB of the projectile G and the target Z.
  • the ignition angle ZW (FIG. 1) of the sensor of a proximity fuse is set as a function of the speed of encounter between the projectile and the target, taking into account the main direction of action of the projectile fragments.
  • This known device has the disadvantage that in addition to the mentioned device for determining the speed of encounter, a sensor for firing at the desired firing angle must be installed in the projectile.
  • the object to be achieved with the present invention is to provide a device which is capable of firing the projectile precisely at the desired firing angle, the speed of encounter being precise, i.e. taking into account all factors and the "storage D" between floor and target does not have to be taken into account.
  • the purpose of this measure is to make the igniter insensitive to electromagnetic interference sources.
  • the igniter now measures the occurring Doppler frequencies fD1 and compares the ratio with the value previously determined by the fire control radar the ignition takes place.
  • the ignition angle ZW must be independent of D.
  • a projectile G moves on a trajectory A and a target Z moves on a trajectory B, wherein according to FIG. 1 the trajectories A and B are parallel to one another, according to FIG. 3 in point E. cut and are skewed towards each other according to Fig. 4.
  • the distance D between the two trajectories A and B is constant and is referred to as deposit D.
  • Projectile G misses target Z by this storage D.
  • projectile G would have to fly on trajectory A 'in order to collide with target Z.
  • the trajectory of the trajectory A is therefore also D.
  • the trajectory D corresponds to the shortest distance between the trajectories A and B of the projectile G, respectively. of the target Z. If the two trajectories A and B lay two planes parallel to each other, they are at a distance D from each other.
  • This angle ZW is formed by the trajectory A and the straight line GZ between floor G and target Z.
  • this ignition angle ZW is dependent on the target speed VZ, on the projectile speed VG and on the mean radial splinter speed VR
  • This ignition angle ZW is therefore independent of the storage D of the projectile G relative to the target Z.
  • the encounter speed VB 1 between floor G and target Z is:
  • the ignition angle ZW results from Fig. 2:
  • the encounter speed is VB 2 :
  • VB 2 VG cos ZW + VZ cos (FW + ZW) (equation 2).
  • the ignition angle ZW can be determined: this results in the encounter speed VB 2 :
  • the encounter speed is VB 3 :
  • VB 3 VZ cos AW + VG cos ZW (equation 3).
  • the ignition angle ZW can be determined: Furthermore, the angle AW between the target trajectory B and the straight line ZG between storey G and target Z can be determined:
  • a Doppler sensor DS on the floor G, which emits a radar signal with the frequency f0 and receives a signal reflected by the target Z with the frequency f0 + fD.
  • This Doppler sensor DS has a transmit / receive antenna SE which is connected to a mixer M.
  • An oscillator OZ and a low-pass filter TP are connected to this mixer M on the one hand.
  • the oscillator OZ is connected to a counter 2 via a divider T and the low-pass filter TP is also connected to the counter 2 via an amplifier V and a comparator K.
  • a digital comparator 3 is present, to which on the one hand the counter 2 and on the other hand a memory 1 are connected. This digital comparator 3 emits an ignition signal ZS as soon as the quotient 2VB exceeds a given, previously measured value fD1.
  • the ignition angle ZW and thus also the value cosZW changes. sinZW, as soon as the distance between target Z and floor G is not much greater than the distance D between trajectories A and D. From the above equations, in particular equations 1, 2 and 3, it can be seen that the firing angle ZW of the Encounter speed VB is dependent. The comparison of the encounter speeds with the aid of the comparator 3 thus enables the ignition at a given ignition angle ZW.
  • the Doppler sensor DS of the flying projectile G As soon as the Doppler sensor DS of the flying projectile G is switched on, it emits a beam of frequency f0. The beam reflected from the target has the frequency f0 + fD. This value reaches the counter 2 via the low-pass filter TP, the amplifier V and the comparator K. From the counter 2 forwarded to the digital comparator 3. At the same time, the value 2VB g K stored in the memory 1 is also passed to the digital comparator 3. The two values are compared in comparator 3. As soon as the two values are the same, an ignition signal ZS is generated and the projectile G is fired.
  • projectile G and target Z fly towards each other on parallel trajectories A and B, these two trajectories A and B being at a distance D from one another.
  • this angle ZW reaches the desired value, i.e. the projectile should be fired.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
EP88113771A 1987-09-29 1988-08-24 Méthode pour l'allumage d'un projectile dans la proximité d'une cible Withdrawn EP0309734A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3782/87 1987-09-29
CH378287 1987-09-29

Publications (1)

Publication Number Publication Date
EP0309734A1 true EP0309734A1 (fr) 1989-04-05

Family

ID=4263365

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88113771A Withdrawn EP0309734A1 (fr) 1987-09-29 1988-08-24 Méthode pour l'allumage d'un projectile dans la proximité d'une cible

Country Status (6)

Country Link
US (1) US4895075A (fr)
EP (1) EP0309734A1 (fr)
JP (1) JPH01114700A (fr)
CN (1) CN1009387B (fr)
CA (1) CA1287685C (fr)
NO (1) NO883978L (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0547391A1 (fr) * 1991-12-18 1993-06-23 Oerlikon Contraves AG Procédé pour élever la probabilité de succès pour une défence anti-aérienne utilisant des projectiles à dispersion télé-commandée
EP0937960A1 (fr) * 1998-02-20 1999-08-25 Tda Armements S.A.S. Procédé de calcul de l'instant de mise à feu d'une charge d'un mobile
EP2989408B1 (fr) 2013-04-26 2021-03-17 Rheinmetall Waffe Munition GmbH Procédé d'exploitation d'un système d'arme

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5696347A (en) * 1995-07-06 1997-12-09 Raytheon Company Missile fuzing system
US6279478B1 (en) * 1998-03-27 2001-08-28 Hayden N. Ringer Imaging-infrared skewed-cone fuze
US6722639B2 (en) 2001-04-10 2004-04-20 Koch-Glitsch, Lp Liquid distributor in mass transfer column and method of installation and use
US7327550B2 (en) * 2001-10-02 2008-02-05 Orica Explosives Technology Pty. Ltd. Frequency diversity remote controlled initiation system
US7658031B2 (en) * 2005-12-21 2010-02-09 Bushnell, Inc. Handheld rangefinder operable to determine hold over ballistic information
US10305196B2 (en) * 2012-04-17 2019-05-28 Keyssa, Inc. Dielectric lens structures for EHF radiation
CN104834825A (zh) * 2015-05-22 2015-08-12 中国石油化工股份有限公司 一种卧式柱形爆炸源碎片击中概率评估方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3670652A (en) * 1970-05-11 1972-06-20 Gen Electric Controlled range proximity fuze
US4135452A (en) * 1978-01-09 1979-01-23 The United States Of America As Represented By The Secretary Of The Navy Time delay computer using fuze doppler for air-to-air missiles
DE2347374A1 (de) * 1973-09-20 1979-09-20 Messerschmitt Boelkow Blohm Abstandszuender fuer einen gefechtskopf
GB1594601A (en) * 1960-05-20 1981-08-05 Emi Ltd Devices for indicating the proximity of a target
EP0161962A1 (fr) * 1984-04-13 1985-11-21 AEROSPATIALE Société Nationale Industrielle Système d'arme et missile pour la destruction structurale d'une cible aérienne au moyen d'une charge focalisée
US4599616A (en) * 1983-07-05 1986-07-08 The United States Of America As Represented By The Secretary Of The Air Force Radar fuze system

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4021803A (en) * 1952-01-30 1977-05-03 Raytheon Company Proximity sensing apparatus
US3765338A (en) * 1955-11-18 1973-10-16 Us Navy Nonlinear inductor proximity fuze
GB1013150A (en) * 1958-12-01 1965-12-15 Dehavilland Aircraft A system for determining the parameters defining the relative motion of a moving object
US3924234A (en) * 1960-12-27 1975-12-02 Us Navy Automatic active/passive fuze system
NL7013888A (fr) * 1970-09-18 1972-03-21
SE397583B (sv) * 1974-11-01 1977-11-07 Bofors Ab Anordning for markstyrd inkoppling av zonror
US4140060A (en) * 1975-05-19 1979-02-20 Motorola, Inc. Subcarrier modulated optical transceiver
DE2527368C2 (de) * 1975-06-19 1982-05-13 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Annäherungszünder
FR2504276A1 (fr) * 1981-04-21 1982-10-22 Thomson Csf Systeme electromagnetique de detection a correlation et fusee de proximite comportant un tel systeme
SE430538B (sv) * 1982-04-06 1983-11-21 Philips Svenska Ab Elektromagnetiskt zonror for projektiler
CA1222308A (fr) * 1984-01-05 1987-05-26 Paul Labbe Processeur de poursuite doppler et indicateur de temps de distance minimum

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1594601A (en) * 1960-05-20 1981-08-05 Emi Ltd Devices for indicating the proximity of a target
US3670652A (en) * 1970-05-11 1972-06-20 Gen Electric Controlled range proximity fuze
DE2347374A1 (de) * 1973-09-20 1979-09-20 Messerschmitt Boelkow Blohm Abstandszuender fuer einen gefechtskopf
US4135452A (en) * 1978-01-09 1979-01-23 The United States Of America As Represented By The Secretary Of The Navy Time delay computer using fuze doppler for air-to-air missiles
US4599616A (en) * 1983-07-05 1986-07-08 The United States Of America As Represented By The Secretary Of The Air Force Radar fuze system
EP0161962A1 (fr) * 1984-04-13 1985-11-21 AEROSPATIALE Société Nationale Industrielle Système d'arme et missile pour la destruction structurale d'une cible aérienne au moyen d'une charge focalisée

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0547391A1 (fr) * 1991-12-18 1993-06-23 Oerlikon Contraves AG Procédé pour élever la probabilité de succès pour une défence anti-aérienne utilisant des projectiles à dispersion télé-commandée
US5322016A (en) * 1991-12-18 1994-06-21 Oerlikon-Contraves Ag Method for increasing the probability of success of air defense by means of a remotely fragmentable projectile
EP0937960A1 (fr) * 1998-02-20 1999-08-25 Tda Armements S.A.S. Procédé de calcul de l'instant de mise à feu d'une charge d'un mobile
FR2775341A1 (fr) * 1998-02-20 1999-08-27 Tda Armements Sas Procede de calcul de l'instant de mise a feu d'une charge d'un mobile
EP2989408B1 (fr) 2013-04-26 2021-03-17 Rheinmetall Waffe Munition GmbH Procédé d'exploitation d'un système d'arme

Also Published As

Publication number Publication date
NO883978D0 (no) 1988-09-07
JPH01114700A (ja) 1989-05-08
CN1034425A (zh) 1989-08-02
NO883978L (no) 1989-03-30
CN1009387B (zh) 1990-08-29
US4895075A (en) 1990-01-23
CA1287685C (fr) 1991-08-13

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