大量的测量数据表明,水声换能器设计中的技术参数目前还不能牢牢控制产品的质量。有时会出现大量不合格,或者晶片不合格的,做成换能器后却能基本满足技术要求。还有在一年四季中,特别是夏天与冬天之差很大,如果水面舰艇声呐换能器,夏天合格的,冬天则会不合格。反之也如此。而冬 A large number of measurement data show that the technical parameters of underwater acoustic transducer design can not firmly control the quality of the product. Sometimes there will be a large number of unqualified, or unqualified chip, made after the transducer can basically meet the technical requirements. There are also throughout the year, especially in the great difference between summer and winter, if the surface naval sonar transducer, qualified in summer, winter will fail. The opposite is true. And winter