| 摘要 |
A laminated piezoelectric element ( 1 ) comprises a laminated piezoelectric element ( 1 ) piezoelectric layers ( 11 ) composed of a ceramic capable of expanding and contracting upon application of a voltage, and internal electrode layers ( 21 a and 21 b) that supply voltage to the piezoelectric layers, the internal electrode layers and piezoelectric layers being alternately provided, a first external electrode layer ( 31 ) provided on a side of the laminated piezoelectric element ( 1 ) and electrically connected with the internal electrode layers ( 21 a and 21 b), and a second external electrode layer ( 32 ) provided on a side of the laminated piezoelectric element ( 1 ) and electrically connected with the internal electrode layers ( 21 a and 21 b) via the first ecternal electrode layer wherein there are specific external electrode width relationships.
|
