A PRELIMINARY STUDY OF A NOVEL TWO-DIMENSION ELECTROMAGNETIC PARTICLE VELOCITY GAUGE UNDER DIVERGENT WAVE

To study the electromagnetic test technique for the two-dimension particle velocity under divergent waves, a novel two-dimension electromagnetic particle velocity gauge configuration is designed based on the magnetic characteristic of Helmholtz coil under a pulse current. Its performance is verified through a comparison of the electromagnetic measurement between one-dimension and two-dimension particle velocities in PMMA. The experiment shows that it is efficient for the propagation measurement of divergent waves in an inhomogeneous medium even with interfaces, grooves and joints.