Title :
On the electromechanical effect in bones
Author :
Gizdulich, P. ; Aschero, G.
Author_Institution :
Dept. of Clinical Physiopathology, Florence Univ.
Abstract :
A new technique to measure the inverse electromechanical effect is applied to five bone samples. The technique uses 2 microwave resonant cavities. When 100 V are applied to the samples, displacements lower than 0.1 Å are detected. Thermal elongation is shown to be more than 100 times greater than the electromechanical response. This may be a source of errors in other detection methods. A piezoelectric matrix is computed, based on the piezoelectric inverse effect theory. Its shape is not that of hexagonal polar symmetry. The coefficients´ range is 2.6·10 to 3.8·10-14 C/N
Keywords :
bioelectric phenomena; biological techniques; biomechanics; bone; electromechanical effects; microwave measurement; 100 V; biophysical research technique; bone samples; error source; hexagonal polar symmetry; inverse electromechanical effect; microwave resonant cavities; piezoelectric inverse effect theory; piezoelectric matrix; thermal elongation; Bones; Electrodes; Microwave devices; Physics; Piezoelectricity; Resonance; Samarium; Shape; Stress; Thermodynamics;
Conference_Titel :
Engineering in Medicine and Biology Society, 1994. Engineering Advances: New Opportunities for Biomedical Engineers. Proceedings of the 16th Annual International Conference of the IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-2050-6
DOI :
10.1109/IEMBS.1994.415271
