Inventors:
Arthur E. Krenzel - Battle Ground WA, US
International Classification:
F41C 27/00
Abstract:
A magnetohydrodynamic sensor system for testing or arming high speed projectiles by providing a high speed signal at the time of projectile exit from a firearm. The sensor unit generally includes a magnet, a first electrode, and a second electrode spaced apart from the first electrode. The first electrode and the second electrode detect an induced voltage caused by a conductive gas passing through a properly oriented magnetic field as the gas exits the barrel with a projectile. The sensor unit may be mounted on the barrel of a firearm, etc., may be mounted on the projectile, and/or motor of the projectile (e.g. rocket). When mounted on a projectile, the sensor unit or onboard electrical circuitry are preferably located at the rear end of the projectile to allow activation of the onboard electrical circuitry and/or sensor unit when substantially the entire projectile exits the barrel for added safety.