2) antepartum ultrasonic prediction
产前超声预测
3) acousto-ultrasonic testing
声-超声检测
1.
The result of acousto-ultrasonic testing experiment of the thin plates of 2mm in thickness makes clear that in the acousto-ultrasonic technique,the excited Lamb waves are multimode Lame waves.
对厚度为2 mm薄钢板的声-超声检测实验结果证实,在声-超声检测形式下激发的超声波的主要成分是多模式的兰姆波。
4) ultrasonic inspection
超声检测
1.
Application of adaptive band-pass filter in ultrasonic inspection based on split-spectrum processing technique;
基于分离谱技术的自适应带通滤波法在超声检测中的应用
2.
Study on recognition of corrosion in pipeline based on ultrasonic inspection;
基于超声检测的管道内腐蚀缺陷识别研究
3.
Research of surface reconstruction and path generation by ultrasonic inspection;
超声检测中曲面重构和路径规划方法研究
5) Ultrasonic testing
超声检测
1.
Research into the methods for ultrasonic testing of welds for steel- structure truss with connected lines;
钢结构桁架相贯线焊缝超声检测方法研究
2.
Effect of adhesive layer’s thickness on ultrasonic testing of adhesion quality;
粘接层厚度对粘接质量超声检测的影响分析
6) ultrasonic test
超声检测
1.
Weld defect classification in ultrasonic testing basing on time-frequency discriminant features;
基于时频判别特征的焊缝超声检测缺陷分类
2.
Research of the Basic Theory on Digital Ultrasonic Test;
数字化超声检测系统及关键技术研究
3.
According to the theories of wavelet packet analysis and artifical immune system, the authors presented a new efficient flaw classification of ultrasonic test system based on the wavelet packet transform and immune system.
根据小波包分析和人工免疫系统的原理,提出了一种基于小波免疫系统的超声检测缺陷分类判读系统。
补充资料：超声
超声
UltrasofliCS
是指超出人耳听力范围的高频声(频率超过20000Hz）。超声具有与一般声音共同的物理性质，还具有一些其他重要的物理特性，如能够成束发射，直线传导，方向性好。传导过程中遇有声阻抗不同的反射界面时产生反射、折射、聚焦和散焦等现象。用于临床诊断的超声频率一般为2～7.5MHz。频率越高，对组织结构的分辨力越强，但远场声能容易被组织吸收、衰减，不易穿透较深的层次。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条