Optimisation of magnetostrictive bilayer sensors for medical applications

Issue title: Selected Papers from the 13th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2007)

Article type: Research Article

Authors: Kaniusas, Eugenijus^a | Pfützner, Helmut^a | Mehnen, Lars^a | Kosel, Jürgen^a | Hasenzagl, Andreas^a

Affiliations: [a] Institute of Fundamentals and Theory of Electrical Engineering, Bioelectricity & Magnetism Lab, Vienna University of Technology, Vienna, Austria. Tel.: +43 1 58801 35122; E-mail: kaniusas@tuwien.ac.at, pfuetzner@tuwien.ac.at, mehnen@tuwien.ac.at, jkosel@gmx.at

Abstract: Magnetostrictive bilayer sensors have been successfully applied on the skin for the registration of various physiological quantities, ranging from the cardiorespiratory activity to the blood pressure changes. The application region was varied from the neck down to the calf. Thus an optimization of the sensor parameters becomes an increasingly important issue. Here the optimisation is considered with respect to curvature, bending momentum, and temperature of the bilayer. The results yield different requirements for different skin regions. In order to control the cross-sensitivity of the sensor, special sensor set-ups are introduced to reduce bending or thermal sensitivity, which is relevant for various medical areas.

Keywords: Magnetostrictive bilayers, skin curvature sensors, thermal sensors, bending momentum sensors, physiological sensors

DOI: 10.3233/JAE-2008-976

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 28, no. 1-2, pp. 193-199, 2008