摘要:
A timing system for providing a fuze function time for firing a fuze whichs independent of power source rise time. A non-volatile counter is programmed with a count indictative of the function time, and is read out starting at missile take-off to fire the fuze upon completion of read out of the count. Inhibit circuitry is provided for automatically reducing the stored count during the setting operation and for subsequently inhibiting the reading out of the counter by a time corresponding to the reduction in the stored count. This time is selected to be greater than the largest expectable rise time of the fluidic generator power source, but no longer than is necessary.
摘要:
A system for sensing the angular position of a code ring of magnetic matel which is rotatable about a cylindrical housing, also magnetic material, to any one of a predetermined number of code ring settings. Either or both the cylindrical housing and the code ring include permanent magnets to provide a magnetic circuit including both of these elements. The code ring has an inner surface which carries an N-bit digital code of magnetic material in N tracks. N Hall effect digital switches are disposed on the cylindrical housing adjacent the N tracks of digital code bits, respectively. Each Hall effect digital switch senses whether a code bit is adjacent to it. The Hall effect digital switches are read by associated electronics within the housing to provide a digital signal indicating the code ring setting.
摘要:
A projectile comprises a payload portion and an airburst fuze mounted on a rear of the projectile and explosively connected to the payload portion. The airburst fuze comprises an arming and firing electrical circuit including a setback generator; a slider that is movable from a safe position to an armed position, the slider including a detonator attached thereto; a setback lock and a spin lock that lock the slider in the safe position and, in response to a setback acceleration and a spin rate, respectively, unlock the slider; and an actuator that moves the slider to the armed position in response to a first input from the arming and firing electrical circuit; wherein a second input from the arming and firing circuit activates the detonator when the slider is in the armed position.