FAULT DETECTION APPARATUS

摘要

Apparatus (20) for detecting faults in the exterior surface of elongate material especially enamel coated wire (W). The apparatus (20) comprises an optical head (22) through which the material (W) passes, the optical head (22) including means (35) to emit light onto the material; means (45) to collect reflected light from the material and means to monitor changes in the reflected light to indicate the presence of faults. A computer (60) is used to record the faults, their characteristics and position on a length of the material.