METHOD AND APPARATUS FOR TIME SETTING BALLISTIC FUZES

Assignee

ACCUDYNE CORPORATION

Filed

Jul 28, 1989

Granted

Sep 7, 1993

Location

JANESVILLE WI US

Abstract

Disclosed is a method of and apparatus for remotely time setting a ballistic fuzing device from an off-board setting device non-conductively coupled to the fuzing device. The fuzing device has a free running or astable multivibrator with non specific frequency tolerance specifications In the practice of the invention, the fuzing device contains a means of generating a time base from a conventionally designed multivibrator circuit, such as an R/C circuit, but not one that utilizes a quartz crystal as its time base. Said multivibrator is set into oscillation during a programming time, at which time the frequency or period of oscillation is measured, and via proper electronic circuits said period is transmitted from the fuzing device to a setting device via a nonconductive link. The setting device, off-board the fuzing device, is so constructed that it reads the period and performs a calculation based thereon and on the specific function time which has been prior set into said setting device by the user thereof The calculation is then returned as electronic impulses back to the fuzing device through the nonconductive data link system The fuzing device then by conventional digital methods reads and stores the calculation which represents a specific function time for that fuzing device based upon the frequency of oscillation of its multivibrator.

Source: Google Patents