Basic study to verify possibility for detection of human cardiopulmonary activity in sediment using current‐induced magnetic modulation spectroscopy

Abstract We have suggested the current‐induced magnetic modulation spectroscopy (CIMMS) to detect human cardiopulmonary activity in sediment for lifesaving. Initially, a Finite Element (FE) model of was developed simulate impedance change by and an optimal electrode arrangement estimated at burial distance 47 , 97 147 mm. The 427 mm apart current injection 305 voltage difference detection. changes mm, were 0.0635%, 0.0432%, 0.0278% caused respiration 0.0006%, 0.0004%, 0.0003% pulsation, respectively. Secondly, normal male subject measured with contactless electrical (EIS) device using arrangement. Respiration pulsation 50 had shown good agreement between medical equipment measurement device. However, accuracy worse significantly 100 150 gradually. Finally, we calculated sensitivity EIS CIMMS concluded that it would be possible when use CIMMS.