EP0469664A1 - Dispositif pour effectuer un contrôle de qualité de munition et son utilisation - Google Patents

Dispositif pour effectuer un contrôle de qualité de munition et son utilisation Download PDF

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Publication number
EP0469664A1
EP0469664A1 EP91201888A EP91201888A EP0469664A1 EP 0469664 A1 EP0469664 A1 EP 0469664A1 EP 91201888 A EP91201888 A EP 91201888A EP 91201888 A EP91201888 A EP 91201888A EP 0469664 A1 EP0469664 A1 EP 0469664A1
Authority
EP
European Patent Office
Prior art keywords
tube
holder
position detector
radiation source
ammunition
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Withdrawn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
EP91201888A
Other languages
German (de)
English (en)
Inventor
Roger Cattin
Raymond Corthesy
Beat Kneubuehl
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.)
Schweizerische Eidgenossenschaft
Original Assignee
Schweizerische Eidgenossenschaft
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 Schweizerische Eidgenossenschaft filed Critical Schweizerische Eidgenossenschaft
Publication of EP0469664A1 publication Critical patent/EP0469664A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F41A31/00—Testing arrangements
    • 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
    • F41A23/00—Gun mountings, e.g. on vehicles; Disposition of guns on vehicles
    • F41A23/02—Mountings without wheels
    • F41A23/08—Bipods
    • F41A23/10—Bipods adjustable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G3/00—Aiming or laying means
    • F41G3/32—Devices for testing or checking
    • F41G3/323—Devices for testing or checking for checking the angle between the muzzle axis of the gun and a reference axis, e.g. the axis of the associated sighting device

Definitions

  • the invention relates to a device for carrying out test shots to determine the quality of ammunition, consisting of a tube fixed in a holder, which can be adjusted in height and direction, and an automatic adjustment device for tracking the tube in its desired direction, and a preferred use of the device for certain types of ammunition.
  • Devices of the type mentioned, also called shooting machines, are known. They are used to check the scatter of the system elements of barrel weapons. For this purpose, the tube is clamped in a holder, after which a number of shots are fired at a target image target. The scatter of the hits around the target center is used as a measure of the accuracy of the weapon and ammunition.
  • the barrel of a gun is firmly clamped in a mostly heavy and solidly constructed holder, this holder being designed to be movable in the firing direction in order to accommodate the recoil.
  • Attempts are made to use springs or rubber parts to slow down the recoil that occurs when the shot is fired and to push the bracket back into its initial position.
  • Such movable systems are usually guided through a block firmly anchored in the ground by means of a kind of guide rail. This block forms the inert reference system to which the shooting direction is related. Both the bracket and the reference system must be of heavy construction so that a large part of the forces occurring during the recoil are absorbed by the inertia.
  • the present invention has for its object to provide a shooting machine that eliminates the aforementioned disadvantages of the prior art and brings the gun barrel in each case in the shortest possible time and with the highest possible precision in the direction of the target image disc, so that the proportion of the scatter , which arises due to an inaccurate alignment of the gun barrel, ceases to exist and the scatter of the hit pattern thus only shows the inaccuracy of the ammunition.
  • the device for ammunition development and for manufacturing control (quality assurance) of ammunition should be used.
  • a radiation source is provided radially offset from the weft direction, the emitted beam of which is directed onto a mirror rigidly connected to the tube and the reflected beam of which is detected by a position detector arranged in the weft direction and the signal outputs of the detector to one with the tube servomechanism in operative connection are performed.
  • This device allows the inertia-free measurement of the orientation of the tube to the target and, in the event of a deviation from the desired direction, causes tracking by the servomechanism.
  • the radiation source is advantageously arranged behind the tube in the weft direction; but it can also be attached to the mouth side.
  • a carrier with a high mass for example a concrete wall resting on heavy foundations, is particularly suitable as a carrier for the radiation source.
  • the radiation source and the position detector are positioned separately from the tube. In this way, any disruptive mechanical coupling between the recoil and the instruments can be avoided.
  • the embodiment according to claim 3 works with commercially available components in the visible range.
  • Frequency modulation has proven itself, according to claim 4, with which scatter and ambient light influences can be eliminated without the need for performance-reducing filters.
  • the development according to claim 5 represents an optimal radiation power, which excludes the risk of eye damage when operating the device.
  • the device according to claim 6 is characterized by short response times and allows a high firing rate, which is particularly advantageous when testing and developing ammunition.
  • the device has proven particularly useful in the use according to claim 7 in the large-scale testing of rifle ammunition with a caliber of 5.7 mm.
  • Fig. 1 is the top left of the tube 1, which is movably clamped in the horizontal and vertical axes in the holder 2, which in turn can be fixed to a foundation.
  • the mouth of tube 1 points to the left sideways.
  • the target image disc is to be thought there as an extension of the longitudinal axis. -
  • the axis of the weft direction is characterized by the designation f.
  • a plane mirror 3 is attached in the region of the mouth of the cartridge chamber of the gun barrel 1. It points with its reflector surface to the instrument carrier 7.
  • This unit 7 can be installed in the immediate vicinity of the device, but separately from the tube 1 and its holder 2, in order not to vibrate during the test shots or the firing rate.
  • the attachment of the instrument carrier 7 to a solid wall is preferably recommended.
  • the unit 7 shown schematically here carries a radiation source 8, preferably a laser diode, further a position detector 9, preferably a PIN photodiode, and an evaluation circuit (computer comparison unit) 10 with two outputs Z and Y, which control units 6a, 6b control the hydraulic cylinders Pressurize 4, 5.
  • a radiation source 8 preferably a laser diode
  • a position detector 9 preferably a PIN photodiode
  • an evaluation circuit (computer comparison unit) 10 with two outputs Z and Y, which control units 6a, 6b control the hydraulic cylinders Pressurize 4, 5.
  • the adjusting members are conventional, hydraulically operating adjusting cylinders, one each for the adjustment in the horizontal and vertical directions.
  • the laser diode 8 transmits its light beam v, modulated with the frequency of 20 kHz, with a wavelength of 850 nm to the plane mirror 3, which in the reference position according to S 1 to the point R of the photodiode 9 transmits the light point throws back the beam v '.
  • R stands for the target value, which in the simplest case lies exactly in the center of the active field of the photodiode 9; If the tube and thus the plane mirror 3 rigidly attached to it are displaced approximately into the plane indicated in S 2 , the reference beam is now deflected twice and hits point J, which corresponds to the actual value.
  • the size of the PIN photodiode 9 is to be matched to the distance a from the mirror 3 and its possible maximum deflection to be reset according to the angle ⁇ , according to the geometric relationships entered in FIG. 2.
  • a PIN photodiode measures two separate analog output signals xy at the input amplifier of the computing and evaluation circuit 10. This processes the input signals and converts the horizontal deviation on the one hand and the vertical deviation on the other hand into control pulses, which on the output side are controlled by the actuators 6a and 6b are connected.
  • the photodiodes used are Schottky barrier diodes specially designed for position measurements and are known per se (cf. "Electronics” magazine, Francis-Verlag GmbH, Kunststoff, 1972, H. 1, pp. 13-15) and are commercially available; also the PIN laser diode used with max. 3 mW radiation power in connection with a modulator, also known per se, with a frequency of 10 kHz to 40 kHz.
  • the laser beam v emitted by the radiation source 8 strikes a mirror 3 clamped on barrel 1.
  • the weapon lies , together with her rifle butt 12, in the usual shooting position on a bracket 2 and is clamped here.
  • the holder 2 in turn rests on a support 14 which is mounted in a cradle 13 and which is actuated in the Y or Z direction by two actuators 4 and 5 designed as hydraulic cylinders, cf. Fig. 4, is aligned.
  • the actuators 4, 5 are controlled and supplied electromechanically by servo parts in the usual manner by control units 6a, 6b, not shown here, in the interior of a housing 17.
  • the actuators 4 and 5 are flanged at the end on a solid support 16 which is arranged on a hollow column 15 'and the housing 17.
  • the column 15 'in centers a wave-like column part 15.
  • the whole rests on a foundation plate 18 which is screwed onto a concrete bearing.
  • the instrument carrier 7 which is also designed with large masses.
  • the device can be remotely controlled via an electromechanical trigger trigger 19 and can also be designed for series fires with automatic evaluation and logging by means of a simple computer control.
  • a model Hydro-Medio HM 16 (Bachofen AG, CH-8610 Uster) serves as the hydraulic unit; the two actuators are Storz hydraulic cylinders, series ZWDAS (E.A. Storz GmbH + Co KG, D-7200 Tuttlingen); the Minipos system (trademark of Wyttenbach Informatik AG, CH-4900 Langenthal) serves as a 2-axis servo control, the controlled servo valves are of the 225F type (Tokyo Precision Instr. Co., Ltd.).
  • a scaled DELTA 500 process controller (Orbit Controls AG, CH-8952 Schlieren) serves as the display device.
  • the radiation source could be attached to the tube in the sense of a kinematic reversal and the detection could take place via a fixed mirror.
  • the virtual image could also be detected instead of the real image.
  • the mirror is arranged differently. In order not to introduce any system-changing masses, it is advisable, for example, to either place or glue a mirror on the grain of a handgun and / or mirror the grain carrier and use it directly as a reflector.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
EP91201888A 1990-07-30 1991-07-18 Dispositif pour effectuer un contrôle de qualité de munition et son utilisation Withdrawn EP0469664A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2510/90 1990-07-30
CH2510/90A CH681111A5 (fr) 1990-07-30 1990-07-30

Publications (1)

Publication Number Publication Date
EP0469664A1 true EP0469664A1 (fr) 1992-02-05

Family

ID=4235413

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91201888A Withdrawn EP0469664A1 (fr) 1990-07-30 1991-07-18 Dispositif pour effectuer un contrôle de qualité de munition et son utilisation

Country Status (5)

Country Link
US (1) US5205168A (fr)
EP (1) EP0469664A1 (fr)
CH (1) CH681111A5 (fr)
IL (1) IL98433A0 (fr)
NO (1) NO912639L (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2683918B1 (fr) * 1991-11-19 1994-09-09 Thomson Csf Materiau constitutif d'une lunette de visee et arme utilisant cette lunette.
US7334466B1 (en) * 2005-01-04 2008-02-26 The United States Of America As Represented By The Secretary Of The Army Method and apparatus for predicting and evaluating projectile performance
US8378277B2 (en) 2009-11-30 2013-02-19 Physical Optics Corporation Optical impact control system
CN103884227B (zh) * 2014-04-04 2015-06-03 中国人民武装警察部队杭州士官学校 无坐力炮零位零线检查装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1961323A1 (de) * 1969-12-06 1971-06-09 Rheinmetall Gmbh Verfahren zum Nachrichten geladener Kanonen- und Geschuetzrohre
US3891323A (en) * 1973-09-07 1975-06-24 Us Army Apparatus for detecting changes in the orientation of a mortar gun tube
US4126394A (en) * 1977-08-09 1978-11-21 The United States Of America As Represented By The Secretary Of The Army Optical cant sensor for mortars
FR2532413A1 (fr) * 1982-08-25 1984-03-02 Foerenade Fabriksverken Affut de mortier a dispositif de reglage automatique des pieds apres chaque tir

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE790663A (fr) * 1971-11-22 1973-02-15 Henrichsen Ernst Procede et dispositif d'etude de la dispersion des plombs dans le tir aplombs
US3893336A (en) * 1973-03-05 1975-07-08 Remington Arms Co Inc Method and apparatus for automatically evaluating accuracy and pattern density for a shotgun
SE428327B (sv) * 1976-07-05 1983-06-20 Bofors Ab Anordning vid en hojdriktcylinder for ett eldror
US4977361A (en) * 1978-06-26 1990-12-11 Eaton Corporation X-Y addressable workpiece positioner and mask aligner using same
FR2512977A1 (fr) * 1981-09-11 1983-03-18 Thomson Csf Dispositif a servovalve electrohydraulique
CA1223652A (fr) * 1983-04-29 1987-06-30 Raymond Carbonneau Systeme de reference du pointage d'une bouche de canon

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1961323A1 (de) * 1969-12-06 1971-06-09 Rheinmetall Gmbh Verfahren zum Nachrichten geladener Kanonen- und Geschuetzrohre
US3891323A (en) * 1973-09-07 1975-06-24 Us Army Apparatus for detecting changes in the orientation of a mortar gun tube
US4126394A (en) * 1977-08-09 1978-11-21 The United States Of America As Represented By The Secretary Of The Army Optical cant sensor for mortars
FR2532413A1 (fr) * 1982-08-25 1984-03-02 Foerenade Fabriksverken Affut de mortier a dispositif de reglage automatique des pieds apres chaque tir

Also Published As

Publication number Publication date
CH681111A5 (fr) 1993-01-15
US5205168A (en) 1993-04-27
IL98433A0 (en) 1992-07-15
NO912639D0 (no) 1991-07-05
NO912639L (no) 1992-01-31

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