| 摘要 |
<p>Provided is a piezoelectric excitor capable of suppressing fluctuations of a resonant frequency and a vibration force, and capable of preventing breakage of a piezoelectric element. The piezoelectric excitor is provided with a plate-like substrate (10), a holding unit (30) for holding one end portion of the substrate (10), a piezoelectric element (20) provided on one side or opposite sides of the substrate (10), an electrode provided in the piezoelectric element (20), and an input terminal (50) for supplying external electric power to the piezoelectric element (20). The holding unit (30) comprises a guide unit (60) extending for a predetermined length from the opposite side portions of the holding unit in the longitudinal direction of the substrate (10), and the guide unit (60) holds the opposite side end portions (10c) of the substrate.</p> |
