A new type of cymbal transducer, called the concave cymbal, has been developed to increase the pressure tolerance and reliability of the transducer under high hydrostatic pressure. The main feature of the new design is a lead zirconate titanate ceramic ring sand- wiched between two concave metal endcaps. It shows much improved pressure performance and can withstand a pressure of up to 6 MPa while maintaining high effec- tive hydrostatic piezoelectric coefficients. When incorpo- rated into a planar array with a radiating area of 5.5 cm x 5.5 cm and weight of only 30 g, a transmitting voltage response of around 125 dB re I mu Pa/V @ I m was obtained over a frequency range between 20 and 50 kHz.
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机译：已经开发了一种新型的transducer换能器，称为凹c，以提高在高静水压力下换能器的耐压性和可靠性。新设计的主要特点是夹在两个凹形金属端盖之间的锆钛酸铅陶瓷环。它显示出大大提高的耐压性能，可以承受高达6 MPa的压力，同时保持高效的静水压电系数。当集成到辐射面积为5.5 cm x 5.5 cm且重量仅为30 g的平面阵列中时，在20 m之间的频率范围内可获得约125 dB re I mu Pa / V @ I m的发射电压响应和50 kHz。
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