Thumbnail Image

Wireless monitoring of internal wound roll pressures

Walker, Timothy J.
Updike, Robert C.
Winding is a dynamic process. The final roll is the product of all that happens during the winding process from roll start to final cutoff. Nearly all roll measurement methods try to characterize a roll's structure after winding is completed, like understanding why a plane crashes from diagnosis of the debris. What winding needs is the equivalent of a 'black box,' a monitoring device to record the dynamic nature of the winding process. Using thin resistance-based pressure sensors and wireless data collection, we will show the changes inside a winding roll as a function of key winding variable, including product properties, winding torque and nip loads, winding speed, and rotation position.