The developement of the High speed current sensing system

This paper describes procedure of development and testing of the High speed current sensing system (HSCSS). There are two possible ways how to precisely measure high speed current during the process of CMT (Cold Metal Transfer) welding. The first one is based on the coupled IC devices consisting of a low-offset linear Hall circuit. The second sensor is based on current transducer where measurement is based on the Hall-effect principle.