Flexible EMG sensor array for haptic interface

In our previous studies, we have proposed a new man-machine interface that detects myoelectric signals on a forearm for estimating finger motions. One of the problems for achieving a high density electromyography (EMG) sensor array is wiring to each node. We adopted ldquotwo-dimensional communication (2DC)rdquo technology for reducing wires. The 2DC enables one to connect sensor nodes embedded in the thin sheet without any wires. In the previous papers, we proposed how to connect sensors to the 2DC sheet without electrical contact. In this paper, we show a new connector which achieves efficient power transmission with microwave through the 2DC sheet. We also show the experimental results of the myoelectric signals with three sensor nodes on the sheet.