Position selectable delay generator for mechanism trigger

Details Position selectable delay generator for mechanism trigger Position selectable delay generator for mechanism trigger

1986-03-12

1987-08-11

Yasich, Daniel M.

Measuring and testing

Ordnance and projectile

102293, G01P 364

Patent

active

046853308

ABSTRACT:
Two sensors are mounted a distance "a" apart near the muzzle of a gun barrel. The first position sensor generates a signal which initiates a binary count, upward from zero at a clock frequency, when the projectile passes the first point. The second sensor generates a signal which reverses the direction of count, at a preselected submultiple of the clock frequency. The time required to return the count to zero is an integer multiple of the time required for the projectile to travel from the first sensor to the second sensor. Thus, the distance that the projectile travels will be an integer multiple of the distance "a" between the sensors. The velocity of the projectile remains relatively unchanged over the specified distance. The signal that is generated when the counter returns to zero may be used to trigger a monitoring device located at the specified point in front of the muzzle when the projectile passes that point.

REFERENCES:
patent: 4129829 (1978-12-01), McLellan
patent: 4137566 (1979-01-01), Haas et al.
patent: 4155647 (1979-05-01), Michel
patent: 4379405 (1983-04-01), Engeler et al.

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