Schneider, M., Santasusagna, J., Magnet, I. A. M., & Schmid, U. (2022). Ex vivo Blood Viscosity Monitoring with Piezoelectric MEMS Resonators. In 2022 IEEE Sensors (pp. 1–4). IEEE. https://doi.org/10.1109/SENSORS52175.2022.9967277
PiezoMEMS; Viscosity sensor; Human blood; Resonator
en
Abstract:
This exploratory work demonstrates the
potential of plate-type piezoelectric MEMS resonators for
measuring the dynamic viscosity of human blood. These
micromachined silicon sensors are operated in roof-tile
shaped vibrational modes, featuring high quality factors in
liquids. The quality factor of the 17 vibrational mode is used
in combination with a sensor calibration procedure which is
based on viscosity standards to monitor this fluidic material
parameter. We demonstrate, that the MEMS sensor can
provide real-time viscosity data over extended periods of
time, which may be of high interest in cardiovascular
medicine and medical applications such as extracorporal
membrane oxygenation (ECMO).