Materials and Optimized Designs for Human-Machine Interfaces Via Epidermal Electronics

摘要

Surface electromyography (sEMG) is a non-invasive technique for measuring electrical signals generated by the contraction of skeletal muscles. sEMG involves sensors placed on the skin, and can be exploited for many clinical and research purposes, ranging from diagnosing neuromuscular disorders, studying muscle pain, and controlling prosthetic or orthotic devices. In all instances, the measuring devices and, in particular, their interfaces to the skin must maximize signal levels while minimizing noise and crosstalk from non-targeted muscle groups. At the same time, form factors that enable soft, conformal adhesion, in ways that do not constrain the motions induced by muscle contractions, are essential for accurate measurement and long-term use without irritation or interface failure. Traditional sEMG signal measurements use rigid electrodes coupled to the skin via electrolyte gels, affixed with adhesive tapes or straps.