The capacitor in the rc timing network also determines a user-selectable blanking window that prevents false triggering of the PWM current-control circuitry during switching transitions.
In the fabrication of petrochemical plant (pressure vessel), the keys to quality control of bumped head are the diameter calculation of head blanking and its forming.
It is the first time to realize automatic on line detection and control in blanking of a big diameter bar and replace the original manmade blanking process.