Study and Measurement of Glidarc Driven by Magnetic Field

Non-thermal plasma at atmosphere was generated through glidarc discharge driven by magnetic field and observed by using a high speed charge coupled device (CCD) and photo multiplier tube (PMT). The arc diameter projecting in the direction of arc motion (front-viewed diameter) and the diameter projecting in the perpendicular direction of arc motion (side-viewed diameter) were measured. The effect of both the arc current and the magnetic field was analysed. The front-viewed diameter was compared with the side-viewed one. Simultaneously the electric-field intensity was measured directly and analysed by considering the effect of the external magnetic field and arc current.