Electromechanical coupling coefficient

Electromechanical coupling coefficient

Electromechanical coupling coefficient is a numerical measure of the conversion efficiency between electrical and acoustic energy in piezoelectric materials.

Qualitatively the electromechancial coupling coefficent, k, can be determined as:

: mathcal{K}^{-2} = frac{1}{mbox{ energy converted per input energy

References

* [http://www.medcyclopaedia.com/library/topics/volume_i/e/ELECTROMECHANICAL_COUPLING_COEFFICIENT.aspx Medcyclopaedia Definition]
* [http://www.crystal-is.com/pdfs/APL844611.pdf#search=%22Electromechanical%20coupling%20coefficient%22 Applied Physics Letters]
* [http://www.ktu.lt/ultra/journal/pdf_33_3/33-1999-Vol.3_03-D.Ciplys.pdf#search=%22Electromechanical%20coupling%20coefficient%22 Vilnius University, Laboratory of Physical Acoustics]


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