Method and system arrangement for determining the type and condition of ammunition ready for firing |
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| 申请号 | US20510271 | 申请日 | 1971-12-06 | 公开(公告)号 | US3814017A | 公开(公告)日 | 1974-06-04 |
| 申请人 | RHEINMETALL GMBH; | 发明人 | BACKSTEIN G; SPATH F; | ||||
| 摘要 | Method and system arrangement for determining the type and condition of ammunition which is ready for firing and can be detonated electrically wherein specific signals corresponding to the type and the condition values are sent as correction signals to a firing control computer processing the target data for positioning a piece of ordnance and/or for setting a fuse of the ammunition. The ammunition is electrically detonated by means of an electric propellant charge ignitor connected between the case of the ammunition and a centrally disposed contact insulated from the case with all measuring and control signals being supplied to the ammunition via the central contact. | ||||||
| 权利要求 | 1. A method for determining the type and condition of electrically detonatable ammunition which is ready for firing from a piece of ordnance including the steps of supplying successive electrical signals to measuring and control circuits associated with the ammunition, modifying the signals in accordance with the type and condition of the ammunition, supplying signals corresponding to the modified signals of the type and condition values of the ammunition as correction signals to a firing control computer, supplying target data signals to the firing control computer, and processing the correction signals and target data signals to provide output signals corresponding to at least one of a desired positioning for the piece of ordnance for firing the ammunition and a desired setting for a fuse of the electrically detonatable ammunition. 2. A method according to claim 1 and further including the steps of supplying external correction signals to the firing control computer, and positioning the piece of ordnance and setting the fuse in accordance with the processed signals. 3. A method according to claim 1, wherein the steps of supplying signals to the measuring and control circuits and supplying modified signals of the type and condition values of the ammunition includes applying the signals and modified signals through a single insulated central contact of an electrical ignition primer for the ammunition. 4. A method according to claim 3, wherein a part of the signals supplied in succession are of opposite polarity to the remainder of the signals. 5. A method according to claim 1, characterized in that the signals for setting the fuse are in the form of a series of pulses, and including the step of varying the number of pulses in accordance with the correction signals and target data. 6. A method according to claim 1, characterized in that the signals for setting the fuse are in the form of voltage pulses, and including the step of varying the voltage levels in accordance with the correction signals and target data. 7. A firing control system for determining the type and condition of electrically detonatable ammunition which is ready for firing from a piece of ordnance, comprising ammunition having circuit means for sensing the magnitude of at least one parameter of the ammunition, control circuit means and firing circuit means arranged therein, each of said circuit means having a common lead and each including blocking means for preventing a signal applied to one circuit means from being applied to another circuit means, said ammunition having the case thereof serving as an electrode and a contact electrically insulated therefrom serving as another electrode for detonation of the ammunition, a firing control computer means for connection with said common lead of said circuit means of the ammunition for supplying signals to the ammunition and receiving signals therefrom indicative of the type and condition thereof in the form of correction signals, said computer means being responsive to the ammunition correction signals, external correction signals and target signals supplied thereto for providing output signals for at least one of positioning the ordnance piece and for setting the control circuit means of the electrically detonatable ammunition. 8. A firing control system accorDing to claim 7 wherein said computer means includes a firing control computer having connected thereto sensing means, control means, external correction means and target means, said sensing means and control means being arranged for connection to said common lead of the ammunition. 9. A firing control system according to claim 8, wherein the ammunition includes electrical ignition primer means in engagement with the case of the ammunition, said primer means having said electrically insulated contact centrally arranged therein, said contact serving for connecting said common lead of said circuit means to said computer means. 10. A firing control system according to claim 9, wherein said electrical ignition primer means is in screw-threaded engagement with the ammunition. 11. A system according to claim 9, wherein said firing circuit means includes an electric propellant charge igniter and associated blocking means in the form of a rectifier, said sensing circuit means includes a temperature-responsive resistor and an electrical device means for identifying the type of ammunition and associated blocking means in the form of a rectifier having the same polarity as the firing circuit rectifier, and said control circuit means includes a projectile fuse which can be controlled electrically. 12. A system according to claim 9, wherein said blocking means of said firing circuit means is a four-layer diode. 13. A system according to claim 11, wherein the electrically controllable projectile fuse includes a first switching circuit means for activating the fuse, the associated blocking means being in the form of a rectifier having opposite polarity relative to the other blocking rectifiers. 14. A system according to claim 13, wherein the electrically controllable fuse includes a second switching circuit means for setting the fuse in accordance with the correction signals and target signals supplied to said computer means, the associated blocking means being in the form of a rectifier having the same polarity as the rectifiers for the firing circuit and the measuring circuit. 15. A system according to claim 14, wherein said control means of said computer means includes pulse transmitter means connected to the firing control computer and adapted to be selectively connected to the switching circuit for setting the fuse for delivering pulses the number of which varies in accordance with the firing control computer output signal depending on the correction signals and target data signals supplied to the firing control computer. 16. A system according to claim 7, wherein the sensing circuit means determines the type of ammunition and includes electrical elements for characterizing the type of ammunition, said elements providing different correction signals according to the type of ammunition. 17. A system according to claim 15, wherein an AND gate is connected between the pulse transmitter and the fuse, the pulse transmitter providing an input to the AND gate, and a firing button providing another input to the AND gate such that the pulses reach the fuse after the firing button has been actuated. 18. A system according to claim 14, wherein the fuse includes an ignition means and the switching circuit means for setting the fuse comprises a counting chain with a storage member connected on the load side, a pulse generator and an acceleration-responsive switch, the acceleration-responsive switch connecting the pulse generator to the counting chain after the acceleration phase of the fired ammunition, and wherein the pulse generator during its operating period renders the ignition means operative via the counting chain in accordance with the signal magnitude stored in the storage member. 19. A system according to claim 14, wherein the fuse includes an ignition means and the switching circuit means for activating the fuse and for supplying power to the switching circuit means for setting the fuse, said activating switching circuit means comprising an ignitIon voltage section for supplying the ignition current for the ignition means and a low voltage section for supplying power to the fuse setting switching circuit means. 20. A system according to claim 19, wherein the ignition voltage section comprises a capacitor and a rectifier connected in series and the low voltage section comprises a capacitor with a Zener diode connected in parallel and a resistor connected in series therewith and a rectifier. 21. A system according to claim 20, wherein an active power source is provided in parallel with the low voltage section, an acceleration-responsive switch being connected between the active power source and the switching circuit for setting the fuse such that the active power souce only supplies the switching circuit with power after the projectile has left the barrel of the piece. 22. A system according to claim 15, wherein the measuring circuit means for determining the type of ammunition includes electrical elements for characterizing the type of ammunition, said elements providing different correction signals according to the type of ammunition. 23. A system according to claim 16, wherein an AND gate is connected between the pulse transmitter and the fuse, the pulse transmitter providing an input to the AND date, and a firing button providing another input to the AND gate such that the pulses reach the fuse after the firing button has been actuated. 24. A system according to claim 17, wherein the fuse includes an ignition means and the switching circuit means for setting the fuse comprises a counting chain with a storage member connected on the load side, a pulse generator and an acceleration-responsive switch, the acceleration-responsive switch connecting the pulse generator to the counting chain after the acceleration phase of the fired ammunition, and wherein the pulse generator during its operating period renders the ignition means operative via the counting chain in accordance with the signal magnitude stored in the storage member. 25. A system according to claim 18, wherein the fuse includes an ignition means and the switching circuit means for activating the fuse and for supplying power to the switching circuit means for setting the fuse, said activating switching circuit means comprising an ignition voltage section for supplying the ignition current for the ignition means and a low voltage section for supplying power to the fuse setting switching circuit means. 26. A system according to claim 25, wherein the ignition voltage section comprises a capacitor and a recitifer connected in series and the low voltage section comprises a capacitor with a Zener diode connected in parallel and a resistor connected in series therewith and a rectifier. 27. A system according to claim 26, wherein an active power source is provided in parallel with the low voltage section, an acceleration-responsive switch being connected between the active power source and the switching circuit for setting the fuse such that the active power source only supplies the switching circuit with power after the projectile has left the barrel of the piece. |
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