Applications of Nano-Composite Piezoelectric Foam Sensors

Abstract

This study develops highly flexible, adaptable, portable gauges that give real-time measurements in many applications where compression is of interest. They can be embedded into elastomeric foams, and preserve the desirable physical properties of the foams in dispersing impact energy. We anticipate that these novel and inexpensive sensors will enable real-time measurement of human impacts and athletic performance based on data collected in the field, rather than the current standard of trying to replicate these experiences in the lab. In previous work, we have validated the performance of tensile strain sensors based on a similar technology embedded in thin sheets of silicone. These sensors are capable of measuring up to 50% strains in real time with minimal interference in tissue motion. With the addition of the sensors described in the present work, it is possible to measure both tensile and compressive strains.