A method and system for providing real time measurements of draw-in for closed loop control of a metal forming process including an elongated sensor on one of the tools positioned in the proximity of the deformation zone and adjacent to an edge of a sheet metal blank being formed. The sensor includes...http://www.google.com/patents/US20020186007?utm_source=gb-gplus-sharePatent US20020186007 - Real-time draw-in sensors and methods of fabrication
