DE2717949A1 - Missile velocity measuring system - has microwave energy reflected by missile along gun barrel - Google Patents

Missile velocity measuring system - has microwave energy reflected by missile along gun barrel

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Publication number
DE2717949A1
DE2717949A1 DE19772717949 DE2717949A DE2717949A1 DE 2717949 A1 DE2717949 A1 DE 2717949A1 DE 19772717949 DE19772717949 DE 19772717949 DE 2717949 A DE2717949 A DE 2717949A DE 2717949 A1 DE2717949 A1 DE 2717949A1
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DE
Germany
Prior art keywords
barrel
missile
horn
measuring system
gun barrel
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.)
Granted
Application number
DE19772717949
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German (de)
Other versions
DE2717949C2 (en
Inventor
Bruno Dipl Ing Rauch
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Individual
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Individual
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Priority to DE19772717949 priority Critical patent/DE2717949C2/en
Publication of DE2717949A1 publication Critical patent/DE2717949A1/en
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Publication of DE2717949C2 publication Critical patent/DE2717949C2/en
Expired legal-status Critical Current

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Classifications

    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
    • G01S13/583—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-modulated waves and based upon the Doppler effect resulting from movement of targets

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

The missile velocity measuring system comprises a horn radiator (3) whose min. radius is matched to the calibre of the muzzle of the gun barrel (2). In the direction of fire is an inclined reflector or mirror of metallised plastics sheet (4) which is replaced after each firing. A microwave transmitter (9) is connected to a waveguide (6) whose outer end terminates in a flared horn (5) directed towards the reflector. The reflected electromagnetic energy received by the horn passes to a Schottky diode receiver (10). The output of this passes to a digital register (11) which stores the signals at 1 mu second intervals. These signals can be reproduced in a time-expanded form on a visual display (12). The wavelength of the microwave radiation must be matched to the dia. of the barrel and the required accuracy.

Description

Gerät zur Messung von Geschwindigkeiten Device for measuring speeds

Die Erfindung betrifft ein Gerät nach dem Oberbegriff des Anspruches 1.The invention relates to a device according to the preamble of the claim 1.

Es sind bereits Geräte dieser Art bekannt. Diese verwenden Antennensysteme, die unmittelbar vor der Laufmündung angeordnet sind (vgl. Dissertation, TH Aachen 1975, Joachim Biele). Dadurch wird diese Antenne bei jedem SchuB zerstört, was sehr aufwendig ist. Weiterhin benutzen diese Geräte das Michelson-Interferometerprinzip, wodurch sich ein erheblicher Aufwand in der Anlage ergibt.Devices of this type are already known. These use antenna systems, which are arranged directly in front of the muzzle (see dissertation, TH Aachen 1975, Joachim Biele). This destroys this antenna with every shot, which is very bad is expensive. Furthermore, these devices use the Michelson interferometer principle, which results in a considerable effort in the system.

Demgegenüber ist es die Aufgabe der vorliegenden Erfindung, mit relativ einfacher Apparatur auszukommen. Diese Aufgabe wird durch die im Kennzeichen des Anspruches 1 angegebenen Maßnahmen gelöst. Weitere zweckmäßige Ausbildungen des Gerätes sind in den Ansprüchen 2 bis9 beschrieben.In contrast, it is the object of the present invention, with relative to get along with simple apparatus. This task is carried out by the Claim 1 specified measures solved. Further appropriate training of the Device are described in claims 2-9.

Fig. 1 zeigt als Ausführungsbeispiel die Erfindung in schematischer Darstellung Fig. 2 zeigt eine Registrierung der gespeicherten Meßwerte auf einem Sichtgerät Fig. 3 zeigt einen Ausschnitt aus Fig. 2 In Fig. 1 bedeutet 1 das im Lauf 2 befindliche Geschoß. An der Laufmündung ist ein Hornstrahler 3 in rotationssymmetrischer Ausführung angebracht, dessen kleinster Innendurchmesser dem Laufkaliber angepaßt ist. In der Geschoßrichtung ist schräg ein Spiegel 4 angeordnet, der die aus dem rechteckigen Hornstrahler 5 kommenden und die in dem Lauf reflektierten Wellen entsprechend umlenkt. 1 shows the invention in schematic form as an exemplary embodiment Representation Fig. 2 shows a registration of the stored measured values on a Display device Fig. 3 shows a detail from Fig. 2 In Fig. 1, 1 means the im Run 2 located storey. A horn antenna 3 is rotationally symmetrical at the muzzle Execution attached, the smallest inner diameter of which is adapted to the barrel caliber is. In the direction of the storey a mirror 4 is arranged obliquely, which from the rectangular horn antenna 5 coming and the waves reflected in the course accordingly diverts.

Dieser Spiegel wird nach jedem Schuß erneuert. Die elektromagnetischen Wellen werden in einem Sender 9 erzeugt und gelangen durch einen gekrümmten rechteckigen Hohlleiter 6 zum Hornstrahler 5. Die von dem Hornstrahler 5 aufgenommenen reflektierten Wellen werden über Hohlleiter 6, die Weiche 8 und den Hohlleiter 7 auf den Empfänger 10 geleitet. Mit dem Empfänger 10 ist ein Digitalspeicher 11 verbunden, der die Meßsignale in definierten, sehr kurzen Zeitabständen (Größenordnung der Zeitabstände 1/usec) abspeichert. Diese Meßsignale können mit Hilfe des Sichtgerätes 12 in zeitgedehnter Form wiedergegeben werden. Eine solche Wiedergabe zeigt die Fig. 2 und die Fig. 3, wobei der Zeitabstand zwischen zwei MeßpunktenX/usec beträgt.This mirror is renewed after every shot. The electromagnetic Waves are generated in a transmitter 9 and pass through a curved rectangular one Waveguide 6 to the horn antenna 5. The reflected by the horn antenna 5 Waves are transmitted via the waveguide 6, the switch 8 and the waveguide 7 to the receiver 10 headed. With the receiver 10, a digital memory 11 is connected to the Measurement signals at defined, very short time intervals (order of magnitude of the time intervals 1 / usec). These measurement signals can be expanded in time with the aid of the display device 12 Shape can be reproduced. Such a reproduction is shown in FIG. 2 and FIG. 3, the time interval between two measuring points being X / usec.

Die Geschoßgeschwindigkeit wird so bestimmt, daß die Abstände der Maxima, die der Wellenlänge entsprechen, in Relation zur Zeit (Anzahl der Meßpunkte zwischen zwei Maxima) gesetzt werden. Aus der Auswertung mehrerer Maxima kann der Geschwindigkeitsverlauf, d.h. die Beschleunigung, ermittelt werden.The projectile speed is determined so that the distances between the Maxima corresponding to the wavelength in relation to time (number of measuring points between two maxima). From the evaluation of several maxima, the Speed curve, i.e. the acceleration, can be determined.

Die Hohlleiterwellenlänge des Laufes wird dadurch bestimmt, daß in einem besonderen Versuch anstelle des Geschoßes im Lauf ein Spiegel für die elektromagnetischen Wellen definiert langsam verschoben wird und damit der Abstand zwischen zwei Maxima meßtechnisch erfaßt wird.The waveguide wavelength of the run is determined by the fact that in In a special experiment, instead of the bullet in the barrel, a mirror for the electromagnetic Waves defined slowly is shifted and thus the distance between two maxima is detected by measurement.

Das Gerät kann auch in ähnlicher Form zur Bestimmung des Geschwindigkeitsverlaufs anderer bewegter Teile in Rohren verwendet werden.The device can also be used in a similar form to determine the speed profile other moving parts are used in pipes.

Die Wellenlänge muß dem Rohrdurchmesser und der erwtlnschten Meßgenauigkeit angepaßt werden Bei einem Rohrdurchmesser von 6 bis 9 mm ergibt sich eine optimale Frequenz von ca. 33 GHz.The wavelength must match the pipe diameter and the desired measurement accuracy be adjusted With a pipe diameter of 6 to 9 mm, the result is an optimal Frequency of approx. 33 GHz.

Das entspricht bei einem Rohrdurchmesser von 9 mm einer Hohlleiterwellenlänge von ca. 12 mm.With a tube diameter of 9 mm, this corresponds to a waveguide wavelength of approx. 12 mm.

L e e r s e i t eL e r s e i t e

Claims (9)

Patentanspruche Gerät zur Messung von Geschoßgeschwindigkeiten im Lauf unter Verwendung von elektromagnetischen Wellen, d a d u r c h gekennzeichnet, daß als Maßstab für die Wegänderung des Geschoßes (1) im Lauf (2) die Hohlleiterwellenlänge des Laufes verwendet wird, wobei das Geschoß als Reflektor für die elektromagnetische Welle dient und der Sender (9) und Empfangsdetektor (10) in gleichbleibendem Abstand zum Lauf (2) angeordnet sind. Claims device for measuring projectile velocities in Run using electromagnetic waves, indicated by that as a yardstick for the change in path of the projectile (1) in the barrel (2) the waveguide wavelength of the barrel is used, with the projectile as a reflector for the electromagnetic Wave is used and the transmitter (9) and receiving detector (10) at a constant distance to the barrel (2) are arranged. 2. Gerät nach Anspruch 1, d a d u r c h gekennzeichnet, daß Sender (9) und Detektor (10) seitlich von der Geschoßbahn angeordnet sind und die elektromagnetischen Wellen über einen Umlenkspiegel (4) in den bzw. aus dem Lauf (2) gelenkt werden.2. Apparatus according to claim 1, d a d u r c h characterized in that the transmitter (9) and detector (10) are arranged to the side of the projectile trajectory and the electromagnetic Waves are directed into or out of the barrel (2) via a deflection mirror (4). 3. Gerät nach Anspruch 1 bis 2, d a d u r c h gekennzeichnet, daß als Antennen (3, 5) für Sender und Empfänger und für den Lauf Hornstrahler vorgesehen sind.3. Apparatus according to claim 1 to 2, d a d u r c h characterized in that provided as antennas (3, 5) for transmitter and receiver and for the barrel horn are. 4. Gerät nach Anspruch 1 bis 3, d a d u r c h gekennzeichnet, daß Sende- und Empfangsantenne aus einem einzigen tornstrahler (5) bestehen.4. Apparatus according to claim 1 to 3, d a d u r c h characterized in that Transmitting and receiving antennae consist of a single torch (5). 5. Gerät nach Anspruch 1 bis 4, d a d u r c h g e k e n n z e i c h n e t , daß als Empfänger(lO) eine Schottkydiode vorgesehen ist.5. Apparatus according to claim 1 to 4, d a d u r c h g e k e n n z e i c h n e t that a Schottky diode is provided as the receiver (10). 6. Gerät nach Anspruch 1 bis 5, d a d u r c h gekennzeichnet, daß als Umlenkspiegel (4) eine metallisierte Kunststoff-Folie vorgesehen ist.6. Apparatus according to claim 1 to 5, d a d u r c h characterized in that A metallized plastic film is provided as the deflection mirror (4). 7. Gerät nach Anspruch 1 bis 6, d a d u r c h gekennzeichnet, daß ein Digitalspeicher (11) vorgesehen ist, in dem die vom Empfänger (10) gemessenen Signale in definierten Zeitabständen gespeichert werden.7. Apparatus according to claim 1 to 6, d a d u r c h characterized in that a digital memory (11) is provided in which the measured by the receiver (10) Signals are saved at defined time intervals. 8. Gerät nach Anspruch 1 bis 7, d a d ur c h g e k e n n z e i c h n e t daß der Speicher (11) mit einem Sichtgerät (12) verbunden ist.8. Apparatus according to claim 1 to 7, d a d ur c h g e k e n n z e i c h n e t that the memory (11) is connected to a display device (12). 9. Gerät nach Anspruch 1 bis 7, d a d u r c h gekennzeichnet, daß die Geschwindigkeit und Beschleunigung über einen mit dem Speicher (11) verbundenen Rechner ermittelbar sind.9. Apparatus according to claim 1 to 7, d a d u r c h characterized in that the speed and acceleration via one connected to the memory (11) Computer can be determined.
DE19772717949 1977-04-22 1977-04-22 Device for measuring projectile velocities in the barrel Expired DE2717949C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19772717949 DE2717949C2 (en) 1977-04-22 1977-04-22 Device for measuring projectile velocities in the barrel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772717949 DE2717949C2 (en) 1977-04-22 1977-04-22 Device for measuring projectile velocities in the barrel

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DE2717949A1 true DE2717949A1 (en) 1978-10-26
DE2717949C2 DE2717949C2 (en) 1982-09-09

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023365A2 (en) * 1979-07-31 1981-02-04 ARES, Inc. Doppler-type projectile velocity measurement apparatus and method
EP0415906A1 (en) * 1989-08-28 1991-03-06 AVL Gesellschaft für Verbrennungskraftmaschinen und Messtechnik mbH.Prof.Dr.Dr.h.c. Hans List Method and device for the determination of parameters of motion
DE102008024574A1 (en) * 2008-05-21 2010-06-17 Rheinmetall Air Defence Ag Apparatus and method for measuring the muzzle velocity of a projectile or the like
CN107655368A (en) * 2017-10-27 2018-02-02 西安工业大学 A kind of non-contact air big gun speed measuring equipment and its method

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
Dr. I.K. Biele: "Measurement of in- bore motion of projectiles and simul- taneous data transmission from built- in sensors by means of microwave inter- ferometry" *
Electronics, Apr.20, 1962, S. 29 *
Electronics, Jan. 3, 1964, S. 31-33 *
Electronics, Sept.16,1960, S. 68-71 *
Sonderdruck: OPOS ELECTRONICS a/s Hvi- dovre, Dänemark *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023365A2 (en) * 1979-07-31 1981-02-04 ARES, Inc. Doppler-type projectile velocity measurement apparatus and method
EP0023365A3 (en) * 1979-07-31 1981-04-22 Ares, Inc. Doppler-type projectile velocity measurement and communication apparatus, and method
EP0415906A1 (en) * 1989-08-28 1991-03-06 AVL Gesellschaft für Verbrennungskraftmaschinen und Messtechnik mbH.Prof.Dr.Dr.h.c. Hans List Method and device for the determination of parameters of motion
DE102008024574A1 (en) * 2008-05-21 2010-06-17 Rheinmetall Air Defence Ag Apparatus and method for measuring the muzzle velocity of a projectile or the like
CN107655368A (en) * 2017-10-27 2018-02-02 西安工业大学 A kind of non-contact air big gun speed measuring equipment and its method

Also Published As

Publication number Publication date
DE2717949C2 (en) 1982-09-09

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