DOI: 10.3724/SP.J.1187.2013.00021

Journal of Electronic Measurement and Instrument (电子测量与仪器学报) 2013/27:1 PP.21-25

Effects of muscle conductivity on signal transmission of intra-body communications

The muscle occupies the large volume of the human body and has good electrical conductivity. The research on effect of muscle conductivity in intra-body communication can help for analyzing the transmission characteristics of current coupling signal, as well as improving the accuracy of model. The quasi-static model based on the finite element method (FEM) was established and analyzed, for current coupling signal transmission through the limb. The variation of total current density distribution resulted from the muscle conductivity at different frequency was studied. Then the effects of muscle anisotropic conductivity were emphatically analyzed. Finally, the FEM model was verified by experimental measurements. The results showed that more than 64% of the current signal transmitted through the muscle layer. And the larger muscle conductivity, the more current propagates through the muscle. In 1 kHz ~1 MHz, the anisotropic conductiv-ity of muscle has a great effect on signal transmission of intra-body communications. What’s more , the model with mus-cle anisotropic conductivity closer to real human body.

Key words:muscle conductivity,anisotropic,in vivo experiments

ReleaseDate:2014-07-21 16:54:51