Recent content by oum

actually, I've tested lately a new method which is to record the sound of the friction of the projectile in the solenoid and analyse it with audacity, but i still can't find the link between sound intensity and the Instantaneous speed of the projectile.

Hi, I've built a coilgun using a solenoid, but my projectile stops at the half of the road, but this way i can't measure neither the acceleration nor the speed. what could be wrong ? how to push it further ? I also have a question about the efficient methods to measure the speed of the...