SE437192B - STATEMENT SENSOR FOR A PROJECTILE - Google Patents

STATEMENT SENSOR FOR A PROJECTILE

Info

Publication number
SE437192B
SE437192B SE8401289A SE8401289A SE437192B SE 437192 B SE437192 B SE 437192B SE 8401289 A SE8401289 A SE 8401289A SE 8401289 A SE8401289 A SE 8401289A SE 437192 B SE437192 B SE 437192B
Authority
SE
Sweden
Prior art keywords
projectile
conductors
insulating material
circuit
deformation
Prior art date
Application number
SE8401289A
Other languages
Swedish (sv)
Other versions
SE8401289D0 (en
Inventor
K Sundvall
Original Assignee
Ffv Affersverket
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 Ffv Affersverket filed Critical Ffv Affersverket
Priority to SE8401289A priority Critical patent/SE437192B/en
Publication of SE8401289D0 publication Critical patent/SE8401289D0/en
Publication of SE437192B publication Critical patent/SE437192B/en
Priority to EP85101471A priority patent/EP0166074A3/en
Priority to NO850840A priority patent/NO850840L/en
Priority to JP4732985A priority patent/JPS6177217A/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/14—Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch
    • H01H35/146—Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch operated by plastic deformation or rupture of structurally associated elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/06—Electric contact parts specially adapted for use with electric fuzes
    • F42C19/07—Nose-contacts for projectiles or missiles

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuses (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Discharge Of Articles From Conveyors (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Burglar Alarm Systems (AREA)
  • Spark Plugs (AREA)

Description

8401289-7 10 15 20 25 30 97.35; Projektilen 1 är försedd med en änS1fl9SSeflS0r inne' fattande en endast schematiskt visad strömkälla 6 och ett ävenledes schematiskt visat avkänningselement i form av ett tändrör 7. Strömkällan 6 kan t ex utgöra ett av projek- tilens acceleration uppladdningsbart batteri eller en piezoelektrisk generator. Enär både strömkällan 6 och tändröret 7 kan vara av godtycklig, konventionell, be- skaffenhet, visas eller beskrivs de ej närmare här. 8401289-7 10 15 20 25 30 97.35; The projectile 1 is provided with an end source comprising only a schematically shown current source 6 and a also schematically shown sensing element in the form of a spark plug 7. The current source 6 may for instance be a battery rechargeable by the acceleration of the projectile or a piezoelectric generator. Since both the power source 6 and the spark plug 7 can be of arbitrary, conventional, nature, they are not shown or described in more detail here.

Strömkällan 6 och tändröret 7 uppvisar en öppen strömkrets i form av tvâ mycket tunna, bandformade elek- triska kopparledare 8 och 9. Ledarna är helt och hållet inbäddade i ett elektriskt isolerande material, t ex i form av en polyimid- eller polyesterfolie till bildning av en s k flexledare 10. Ledarna 8, och 9 har därvid formen av ett tunt ledningsmönster, som är inetsat i plastfolien.The current source 6 and the spark plug 7 have an open circuit in the form of two very thin, band-shaped electric copper conductors 8 and 9. The conductors are completely embedded in an electrically insulating material, for example in the form of a polyimide or polyester foil to form a so-called flex conductor 10. The conductors 8 and 9 then have the shape of a thin conductor pattern, which is etched in the plastic foil.

Flexledaren 10 är allmänt av den form som visas i figur 3, dvs med ett långsträckt parti 11, där de båda ledarna 8 och 9 löper parallellt med varandra, samt ett sensorparti 12, där de båda ledarna 8 och 9 parvis löper intill varandra enligt ett förutbestämt mönster. Sensor- partiet har i figur 1 och 2 ett något annat utseende än i figur 3, och betecknas där med 12'. Sensorpartiet 12' har samma form som ansatsen 5, och är fastsatt mot denna, t ex genom limning eller med hjälp av tape. Det lång- sträckta partiet 11 följer någon lämplig innerprofil i projektilen samt är ävenledes fastsatt mot denna medelst limning eller med hjälp av tape.The flex conductor 10 is generally of the shape shown in Figure 3, i.e. with an elongate portion 11, where the two conductors 8 and 9 run parallel to each other, and a sensor portion 12, where the two conductors 8 and 9 run in pairs next to each other according to a predetermined pattern. The sensor portion in Figures 1 and 2 has a slightly different appearance than in Figure 3, and is denoted there by 12 '. The sensor portion 12 'has the same shape as the shoulder 5, and is attached to it, for example by gluing or by means of tape. The elongate portion 11 follows any suitable inner profile in the projectile and is also attached to it by gluing or by means of tape.

Ledningsmönstret i sensorpartiet 12 respektive 12' kan ha många olika utseenden, de visade är endast exempel på tänkbara mönster.The lead pattern in the sensor portion 12 and 12 ', respectively, can have many different appearances, the ones shown are only examples of conceivable patterns.

I de visade ledningsmönstren ligger de båda bandfor- made ledarna 8 och 9 i samma plan. I en alternativ, ej visad utföringsform, kan de ligga på varandra, åtskilda från varandra medelst ett skikt av nämnda isolerande material. ïšcß» t 10 15 20 25 30 35 8401289-7 Projektilskalet 2 har mitt för ansatsen 5 en trapp- stegsformigt avtagande diameter till bildning av ett antal (tre i det visade exemplet) ringformade, metalliska eqgar 13, vilkas spets befinner sig i luftspalten 4 på ett av- stånd frân ansatsen 5 uppgående till ca 0,5-1 mm. Eggarna 13 formas lämpligare samtidigt som projektilskalet till- verkas.In the wiring patterns shown, the two band-shaped conductors 8 and 9 are in the same plane. In an alternative, not shown embodiment, they may lie on top of each other, separated from each other by means of a layer of said insulating material. ïšcß »t 10 15 20 25 30 35 8401289-7 The projectile shell 2 has in the middle of the shoulder 5 a stepped decreasing diameter to form a number (three in the example shown) of annular, metallic edges 13, the tip of which is located in the air gap 4 at a distance from the shoulder 5 amounting to about 0.5-1 mm. The edges 13 are more suitably shaped at the same time as the projectile shell is manufactured.

Anslagssensorns funktion är följande.The function of the impact sensor is as follows.

När projektilen träffar ett mål, deformeras projektil- skalet, så att eggarna 13 tränger genom det isolerande materialet i flexledaren 10 och sluter kontakten mellan ledarna 8 och 9, så att ström flyter från strömkällan 6 till tändröret 7. När detta avkänner en elektrisk ström, kan en önskad funktion utlösas i projektilen, t ex initiering av en sprängladdning (ej visad), Om ledarna 8 och 9 är anordnade över varandra enligt den nämnda, alternativa utföringsformen, kommer eggen 13 att först skära genom den ena ledaren, därefter genom det mellanliggande isolationsskiktet tills eggen når den andra ledaren, så att strömkretsen sluts.When the projectile hits a target, the projectile shell is deformed so that the edges 13 penetrate the insulating material in the flex conductor 10 and close the contact between the conductors 8 and 9, so that current flows from the current source 6 to the spark plug 7. When it senses an electric current, a desired function can be triggered in the projectile, eg initiation of an explosive charge (not shown). If the conductors 8 and 9 are arranged one above the other according to the mentioned, alternative embodiment, the edge 13 will first cut through one conductor, then through the intermediate the insulation layer until the edge reaches the other conductor, so that the circuit is closed.

Det är tänkbart inom ramen för uppfinningen att låta eggarna 13 och ledarna 8, 9 byta plats, dvs att fastsätta de isolerade ledarna på projektilskalets insida samt eggarna på någon projektilkomponent innanför projektil- skalet.It is conceivable within the scope of the invention to let the edges 13 and the conductors 8, 9 change place, ie to attach the insulated conductors to the inside of the projectile shell and the edges to some projectile component inside the projectile shell.

Det är även uppenbart, att flexledarens sensorparti 12 respektive 12' kan anordnas i projektilen varhelst man önskar uppnå en anslagsavkänning. Vidare är det uppenbart att eggarna kan ha annan form än den visade.It is also obvious that the sensor portion 12 and 12 'of the flex conductor, respectively, can be arranged in the projectile wherever it is desired to achieve a stop sensing. Furthermore, it is obvious that the edges may have a different shape than the one shown.

"POQR QÜFLLÉ"POQR QÜFLLÉ

Claims (4)

, 8401289-7 Patentkrav, 8401289-7 Patent claims 1. Anslagssensor för en projektil (1), innefattande' en strömkälla (6) med en öppen strömkrets (8, 9), som är 'anordnad att slutas till följd av en deformation av projek- 5 7 tilen vid anslag i ett mål, och ett avkänningselement (7) för avkänning av nämnda strömkretsslutning, k ä n n e t e c k n a d av att strömkretsen består av minst två från projektilens skal (2) elektriskt isolerade ledare (8, 9) inbäddade i ett elektriskt isolerande mate- 10 rial (10), och att minst en i projektilen (1) anordnad metallisk egg (13) eller liknande, som är e1ektriskt_ isolerad från de båda ledarna, har förmåga att till följd av nämnda deformation av projektilen kunna genomtränga nämnda isolerande material och åstadkomma en elektrisk 15 kontakt mellan nämnda båda ledare till åstadkommande av nämnda slutning av strömkretsen.Impact sensor for a projectile (1), comprising a current source (6) with an open circuit (8, 9), which is arranged to be closed as a result of a deformation of the projectile upon impact in a target, and a sensing element (7) for sensing said circuit closure, characterized in that the circuit consists of at least two conductors (8, 9) electrically insulated from the shell of the projectile (2) embedded in an electrically insulating material (10), and that at least one metallic edge (13) or the like arranged in the projectile (1), which is electrically insulated from the two conductors, is capable of being able to penetrate said insulating material as a result of said deformation of the projectile and provide an electrical contact between said two conductor to effect said closure of the circuit. 2. I 2. Sensor enligt krav 1, k ä n n e t e c k n a d av att det isolerande materialet (10) har formen av en folie, i vilken ledarna (8, 9) är inbäddade. 7 202. A sensor according to claim 1, characterized in that the insulating material (10) is in the form of a foil, in which the conductors (8, 9) are embedded. 7 20 3. Sensor enligt krav 2, k ä n n e t e c k n a d nav att folien (10) med de inbäddade ledarna (8, 9) är en s k flexledare. ,Sensor according to Claim 2, characterized in that the foil (10) with the embedded conductors (8, 9) is a so-called flex conductor. , 4. Sensor enligt något av föregående krav, k ä n n e t e c k'n a d av att eggen (13) och ledarna 25 (8, 9) är anordnade att till följd av nämnda deformation kunna röra sig mot varandra i en luftspalt (4) innanför projektilens skal (2). 30 35Sensor according to one of the preceding claims, characterized in that the edge (13) and the conductors 25 (8, 9) are arranged to be able to move towards each other in an air gap (4) inside as a result of said deformation. the shell of the projectile (2). 30 35
SE8401289A 1984-03-08 1984-03-08 STATEMENT SENSOR FOR A PROJECTILE SE437192B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE8401289A SE437192B (en) 1984-03-08 1984-03-08 STATEMENT SENSOR FOR A PROJECTILE
EP85101471A EP0166074A3 (en) 1984-03-08 1985-02-12 Impact sensor for a projectile
NO850840A NO850840L (en) 1984-03-08 1985-03-01 ASSESSMENT FAILURE FOR A PROJECTILE
JP4732985A JPS6177217A (en) 1984-03-08 1985-03-08 Impact sensor for firing body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8401289A SE437192B (en) 1984-03-08 1984-03-08 STATEMENT SENSOR FOR A PROJECTILE

Publications (2)

Publication Number Publication Date
SE8401289D0 SE8401289D0 (en) 1984-03-08
SE437192B true SE437192B (en) 1985-02-11

Family

ID=20355057

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8401289A SE437192B (en) 1984-03-08 1984-03-08 STATEMENT SENSOR FOR A PROJECTILE

Country Status (4)

Country Link
EP (1) EP0166074A3 (en)
JP (1) JPS6177217A (en)
NO (1) NO850840L (en)
SE (1) SE437192B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE457187B (en) * 1987-04-03 1988-12-05 Bofors Ab PANSARSPRAENGGRANAT
US8297193B1 (en) * 2011-07-08 2012-10-30 Foster-Miller, Inc. Surrogate RPG
DE102017208920A1 (en) 2017-05-26 2018-11-29 Lithium Energy and Power GmbH & Co. KG Sensor arrangement and battery system comprising such a sensor arrangement

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2070389A5 (en) * 1969-12-03 1971-09-10 Serat
FR2157152A5 (en) * 1971-10-20 1973-06-01 Serat Nose cone contactor for projectiles - with high degree of sensitivity
US4412114A (en) * 1982-03-03 1983-10-25 John Arbeeny Electrical switch
FR2528764A1 (en) * 1982-06-18 1983-12-23 Lincrusta Munition shell with nose cone insulation cover - carrying impact detonation spokes pref. having casing core of expanded polyethylene

Also Published As

Publication number Publication date
EP0166074A3 (en) 1986-01-08
NO850840L (en) 1985-09-09
JPS6177217A (en) 1986-04-19
SE8401289D0 (en) 1984-03-08
EP0166074A2 (en) 1986-01-02

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