Electronic velocimeter having an oscillator coupled coil for mea

Details Electronic velocimeter having an oscillator coupled coil for mea Electronic velocimeter having an oscillator coupled coil for mea

1978-11-13

1980-10-14

Strecker, Gerard R.

Electricity: measuring and testing

Electrical speed measuring

Including 'event' sensing means

G01P 366

Patent

active

042283973

ABSTRACT:
An electronic velocimeter for measuring the muzzle velocity of a projectile mploys a conductive coil mounted between the muzzle and an annular conductive shield. The shield and coil are insulated from each other and encircle the trajectory of the projectile. An oscillator means for generating an oscillator signal is coupled to the coil. This oscillator means is responsive to the projectile passing through the coil. A timing means responds to the oscillator to produce a timing signal. This timing signal represents the transit time for the projectile to traverse a predetermined interval of the trajectory of the projectile. Knowing this transit time the velocity is readily obtained.

REFERENCES:
patent: 2301194 (1942-11-01), Bradford
patent: 3656059 (1972-04-01), Overstreet
patent: 3659201 (1972-04-01), Vogelsang
patent: 3787770 (1974-01-01), Cote et al.
patent: 3824463 (1974-07-01), Oehler

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