チタン酸バリウム磁器(水中超音波発射子)への浸水について

概要

論文の詳細を見る
The effect of water absorbed in barium-titanate ceramic transducers, which emitted 2 Mc ultrasonic wave in water, was studied. Usually the water penetration into ceramics was very slow. Experimental results showed that there's almost no effect of the water on the ultrasonic emitting ability of ceramics, even in samples which absorbed water in consideralbe amount. Here, emitting ability meaned the minimum voltage applited on ceramics to maintain a constant ultrasonic radiation, the pressure of which was measured by a balance.
社団法人日本音響学会の論文
1954-09-30