由此表明，选择合适的声发射换能器，有助于提高液位检测回波信号的强度。
The result shows that in order to obtain the strong echo signal, a suitable selection of the ultrasonic transducer operating frequency is necessary.
用边界元方法，给出了水声发射换能器共形阵各阵元的单元指向性以及基阵的自然波束指向性和束控波束指向性。
The radiation directivity of a complicated conformal array of underwater acoustic transducers is presented based on the boundary element method.
在水声方面，为了得到用较小的发射功率探测到更远得距离的目标，使发射能量集中在某些特定方向，人们对水声发射换能器及其基阵的声特性进行了很多研究。
There are a lot of research on the acoustic characteristics of the acoustic emission transducer and its array for the emission energy is concentrated in some specific direction.
换能器与功放匹配是宽带大功率水声发射的关键技术之一。
Match between the transducer and the amplifier is a key technology for a wide band high power underwater acoustic transmit system.
换能器与功放匹配是宽带大功率水声发射的关键技术之一。
Match between the transducer and the amplifier is a key technology for a wide band high power underwater acoustic transmit system.
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