Apparatus for determining projectile position and barrel pressur

Details Apparatus for determining projectile position and barrel pressur Apparatus for determining projectile position and barrel pressur

1977-12-15

1979-04-03

Swisher, S. Clement

Measuring and testing

Ordnance and projectile

G01L 514

Patent

active

041470559

ABSTRACT:
Measurement and correlation of chamber pressure and projectile position d is accomplished using an array of phototransistors, illuminated by collimated light, which phototransistors are sequentially switched off due to the interruption of the collimated light by the passing projectile. Pulses generated thereby may be displayed on an oscilloscope along with the pressure-time trace.

REFERENCES:
patent: 53582 (1866-04-01), Coursey
patent: 2475387 (1949-07-01), Golden
patent: 2482184 (1949-09-01), Hoffman et al.
patent: 2641458 (1953-06-01), Gilvarry
patent: 2820412 (1958-01-01), Beeuwkes
patent: 3127768 (1964-04-01), Mason
patent: 3675030 (1972-05-01), Tanenhaus

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