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AssigneeThe United States of America as represented by the Secretary of the Army
InventorJimmy Q. Schmidt
Estimating the term…
A method and apparatus for setting a time delay value in an electronic fuze of a projectile exiting the muzzle of a gun barrel, in which a single transmitter coil concentrically mounted to the gun muzzle is utilized both to sense the presence of the projectile at the gun muzzle and to inductively transmit a radio frequency signal having a duration proportional to the fuze time delay value to a receiver coil disposed on the projectile. The transmitter coil is energized from a radio frequency oscillator before the projectile is fired. As the front end of the projectile begins to emerge from the gun muzzle, its presence is detected by a change in the transmitter coil impedance, and the transmitter coil is automatically deenergized. The receiver coil is spaced from the front end of the projectile so that it is not inductively coupled to the transmitter coil, the transmitter coil is reenergized from the oscillator for a time period proportional to the fuze time delay value to be set, then again deenergized until the projectile has completely emerged from the gun muzzle. The signal received by the receiver coil is processed by circuitry within the projectile to set the fuze time delay value.
A method of setting a time delay value in an electronic fuze of a projectile exiting the muzzle of a gun barrel, wherein the time delay value is inductively transmitted in a form of an alternating oscillator signal, from a transmitter coil concentrically mounted to the gun barrel at the muzzle to a receiver coil disposed on the projectile and spaced from the front end of the projectile, during the time period that the receiver coil is inductively coupled to the transmitter coil, comprising the sequential steps of:
Apparatus for setting a time delay value in an electronic fuze of a projectile exiting the muzzle of a gun barrel, comprising:
Dependencies are inferred from the claim text.