Electromechanical coupling coefficient is a numerical measure of the conversion efficiency between electrical and acoustic energy in piezoelectric materials.
Qualitatively the electromechanical coupling coefficient, k, can be determined as:
\({\displaystyle {\mathcal {K}}^{-2}={\frac {1}{\mbox{ energy converted per input energy}}}} \)
References
"Electromechanical coupling coefficient". Medcyclopaedia. GE. Archived from the original on 2012-02-04.
Vilnius University, Laboratory of Physical Acoustics
Hellenica World - Scientific Library
Retrieved from "http://en.wikipedia.org/"
All text is available under the terms of the GNU Free Documentation License
