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IEVref: | 561-05-03 | ID: | |

Language: | en | Status: Standard | |

Term: | coupling factor, <of a piezoelectric ceramic> | ||

Synonym1: | coupling coefficient, <of a piezoelectric ceramic> [Deprecated] | ||

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Synonym3: | |||

Symbol: | k
| ||

Definition: | constant representing the efficiency of electromechanical coupling Note 1 to entry: It represents the efficiency of converting electric energy into mechanical energy by the electro-mechanical coupling effect, and it is defined as the square root of the ratio of the mechanical energy stored (
$k=\sqrt{\frac{{U}_{\text{m}}\text{\hspace{0.05em}}}{{U}_{\text{i}}}}$ | ||

Publication date: | 2016-07 | ||

Source: | |||

Replaces: | 561-05-03:2014-11 | ||

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Note 1 to entry: It represents the efficiency of converting electric energy into mechanical energy by the electro-mechanical coupling effect, and it is defined as the square root of the ratio of the mechanical energy stored (*U*_{m}) to the total input electric energy transferred (*U*_{i}):

$k=\sqrt{\frac{{U}_{\text{m}}\text{\hspace{0.05em}}}{{U}_{\text{i}}}}$