電わい駆動形音片振動子の第2次共振周波数と振動姿態

概要

論文の詳細を見る
The vibrator used here consists of one basis bar and four pieces of electrostrictive material bonded to drive the basis bar, and vibrates in even modes of the transverse vibration.　This vibrator is useful for a transducer-resonator of H-type electromechanical filter, while the impedance of electrostrictive materials cannot be generally neglected as compared with the impedance of basis bar.　This paper deals with the resonant frequencies, the resonant modes and the force factors of electrostrictive vibrator after due consideration of effects of the impedance of electrostrictive materials.　From the calculation and experimental results, it appears that　(1) Increasing the value of thickness ratio of electrostrictive material to basis bar, the degree of frequency deviation from the natural frequency of basis bar only increases.　(2) The resonant mode changes in correspondence with the thickness ratio and the length ratio of electrostrictive material to basis bar.　The vibrator is analyzed by using the analogy between mechanical system and electrical networks.
山形大学の論文
1969-03-20