Measuring the Electrical Charge and Velocity of a Moving Projectile

摘要

Two different probes were developed for measuring the electrical charge and velocity of a moving charged projectile. The probes were tested using 5/32-inchdiameter steel balls fired from a rifle at roughly 4500 feet per second. The projectiles were frictionally charged to from 50 to 100 micromicrocoulomb by passing through a 0.0003-inch-thick plastic sheet. (Author)