An optical method for the determination of the velocity of rifle bullets and gun shot

Autor: James Taylor, Robert Wark
Rok vydání: 1931
Předmět:
Zdroj: Journal of Scientific Instruments. 8:288-295
ISSN: 0950-7671
DOI: 10.1088/0950-7671/8/9/305
Popis: The paper describes methods of measuring the velocity of rifle bullets and of shot gun ejecta in the neighbourhood of the muzzle. Beams of light which are brought to fine foci at a known distance apart on the line of flight of the projectile throw very intense slits of light on a rotating film. When a projectile passes one of the foci, the light is momentarily cut off and an interception on the film takes place. The nature of the interceptions and the accuracy of measurements are described.
Databáze: OpenAIRE