设计复合制作了工作频率在20～100MHz的纵波、横波以及曲面超声换能器．以延迟块直接耦合的方式对陶瓷零部件进行声参数和缺陷尺度的超声技术检测.以纵波（对气孔较灵敏）和横波（适于检测裂纹）换能器交替使用提高了可信度．在广泛检测的基础上，建立AVN（距离、波幅、当量）关系曲线，供作缺陷尺度的查判之用.基于无损的检测结果，根据断裂力学的基本原理，对陶瓷零部件作质量评价和级别判断以及取／舍裁决． Design composite produced a working frequency of 20 ~ 100MHz longitudinal waves, shear waves and curved ultrasonic transducers. Ultrasonic testing of ceramic components with acoustic parameters and flaw dimensions is carried out with a direct delay coupling of the blocks, with increased confidence that longitudinal (more stomatal-sensitive) and transverse (more suitable for detecting cracks) transducers are used interchangeably. On the basis of extensive testing, the AVN (distance, amplitude and equivalent) curve was established for the purpose of checking the defect size.According to the non-destructive test results, according to the basic principles of fracture mechanics, the quality evaluation of ceramic parts and Judgment of grade and take / referee.