Multiple screen ballistic chronograph

Details Multiple screen ballistic chronograph Multiple screen ballistic chronograph

1988-04-04

1989-07-04

Miska, Vit W.

Horology: time measuring systems or devices

Time interval

Electrical or electromechanical

364565, G04P 800, G01P 342

Patent

active

048456900

ABSTRACT:
A chronograph system includes three shot-sensing screens which provide start and stop signals to interval-determining timers. The first screen provides a start signal to both timers and the subsequent screens provide stop signals to the first and second timers, respectively. The time intervals measured by these timers are divided into the distances between the screens to separately calculate two velocities based on two different distances. The calculated velocities are compared to evaluate the performance of the instrumentation so that measurement errors resulting from the instrumentation itself can be eliminated from analysis of the test shots.

REFERENCES:
patent: 4305142 (1981-12-01), Springer
patent: 4350881 (1982-09-01), Knight et al.
patent: 4509131 (1985-04-01), Krasnjanski

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