Integrated All Electrical Pulse Wave V elocity and Respiration Sensors Using Bio

Abstract

In this paper , we propose wire-free integrated sen- sors that monitor pulse wave velocity (PWV) and respiration, b oth non-electrical vital signs, by using an all-electrical method. The key techniques that we employ to o btain all-electrical and wire- free measurement are bio-impedance (BI) and analog- modulated body-channel communication (B CC), respectively. For PWV , time difference between ECG signal from the heart and BI signal from the wrist is measured. To remove wires and avoid sam plin