Apparatus for determining a speed of a projectile
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United States of America Patent
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Sep 15, 1998
Grant Date -
N/A
app pub date -
Jul 23, 1996
filing date -
Jul 23, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus for determining a speed of a projectile uses control logic and a single acoustic sensor connected to the control logic. The control logic includes a pulsing clock. The control logic starts the clock upon receiving a first signal from the acoustic sensor and stops the clock upon receiving a second signal from the acoustic sensor. The control logic converts pulses of the clock into a numeric value indicative of speed based upon a preprogrammed distance measurement setting. The numeric value can then be converted into miles per hour and displayed to the user.
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