This is a tool for on-line monitoring of a composite manufacturing process.
The composites industry lacks sufficiently accurate and robust tools necessary for monitoring its standard polymer/fiber manufacturing process. Often, point sensors are used. They are expensive, monitor only one portion of the process, such as curing, and provide feedback only in one area at a time. T Better sensors developed at the University of Delaware provide continuous feedback during processing over large areas. The result is reduced scrap, improved yield, and higher quality composites.
Complete in situ monitoring
Instant, Accurate, Economical and
and simple integration
detection probability and coverage rate
distributed sensing capability
A novel carbon
nanotube based non-woven fabric sensor for the whole-body process monitoring of
composite manufacturing process has been
developed. The porous sensing sheet, dubbed a “Smart Veil”, can be woven into
any size and shape prior to the fabrication process. It is thus suitable for a
wide range of product shapes and sizes. The
sensor outputs an easily measurable electrical signal that responds directly to
changes during the composite manufacturing process. Among other variables, resin infusion, curing
and post-curing can all be readily determined using the inventive product.
STAGE OF DEVELOPMENT:
A prototype has been completed. Optimization for specific composite parts and/or processes is easily accomplished.