Hand guided material testing device for optical verification of crack in work piece or component, has coil arrangement producing magnetic field on yoke, and illumination device fixedly connected with yoke for illumination of testing section

摘要

The device has a coil arrangement producing magnetic field on a magnet yoke (2). An illumination device is fixedly connected with the yoke for illumination of a testing section. The illumination device comprises lamps for providing visible light and LEDs for providing UV-A radiation. A light body (1) is fixed at side pieces of the yoke and supplied with current from a rechargeable battery or an exciter coil (3). A cross beam (4) is made of magnetic non-conducting material and provided for fixation of the light body below a gripping piece.