Electromechanical coupling coefficient

Electromechanical coupling coefficient is a numerical measure of the conversion efficiency

Energy conversion efficiency

Energy conversion efficiency is the ratio between the useful output of an energy conversion machine and the input, in energy terms. The useful output may be electric power, mechanical work, or heat.-Overview:...

between electrical and acoustic

Acoustics

Acoustics is the interdisciplinary science that deals with the study of all mechanical waves in gases, liquids, and solids including vibration, sound, ultrasound and infrasound. A scientist who works in the field of acoustics is an acoustician while someone working in the field of acoustics...

energy in piezoelectric materials.

Qualitatively the electromechanical coupling coefficient, k, can be determined as:

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