1) ultrasonic anemograph
超声测风
1.
Take the ultrasonic anemograph as the application background,the performance of the estimation of the time delay based on the correlation method is analyzed,and the disadvantage is pointed out.
以超声测风为应用背景,对基于相关法的时延估计性能进行分析,指出其存在的问题。
2) 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。
3) 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
4) 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
5) 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