2017 Individual Seed Projects

Noninvasive Impedance Spectroscopy of Blood using Advective Heat Transport

Richard W. Weiland Professor in the School of Engineering
Photo of Daniel Heywood

Daniel Heywood

PhD Student
School of Engineering
Department of Mechanical Engineering
Stanford University

Our project aims to measure the impedance spectrum of blood noninvasively by leveraging blood’s ability to transport heat by bulk motion, along with its temperature sensitivity. A small heater can introduce a periodic temperature variation from the skin surface, which manifests as a downstream impedance variation, which in turn can be measured using skin-surface electrodes.