Creeping wave testing is an effective supplement to conventional ultrasonic testing.
爬波检测是常规超声波检测的有力补充。
Chapter 3 provides primary principles and approaches of ultrasonic spectrum analysis in accordance with features of ultrasonic testing signals.
第三章针对超声波检测信号特点，给出超声频谱分析的基本原理与方法。
In ultrasonic testing, ultrasonic phased array technology and synthetic aperture focusing technique have been proved to be two kinds of effective new technologies.
在超声检测领域，超声相控阵技术和合成孔径聚焦技术已被证明是两种行之有效的新技术。
The ultrasonic testing of forging defects.
锻件缺陷的超声波检测。
An automatic ultrasonic testing system for zirconium alloy bars was designed.
设计了一种适用于锆合金棒的超声波自动检测系统。
The problem of flaw classification in ultrasonic testing has not been solved so far.
超声检测技术中，缺陷的定性分类这一技术难题至今尚未得以彻底解决。
The national standard is the general standard of ultrasonic testing for steel castings.
本标准系铸钢件超声探伤的通用标准。
The method of ultrasonic testing for casting of PbSbSn alloy is mainly studied in this paper.
本文主要研究了铸造铅锑锡合金的超声检测方法。
During ultrasonic testing heavy castings, the procedure must be severely prepared and controlled.
超声波检测大型铸件时，应制定严格的检测工艺并加以控制。
Objective To find suitable critical value of fetal nuchal translucency (NT) by ultrasonic testing.
目的通过超声检查寻找合适的胎儿颈项皮肤厚度（NT）临界值。
Experiments showed that ultrasonic testing method was suitable for the weld quality testing of PE pipe.
试验表明，超声检测方法适用于PE管热熔焊缝的焊接质量检测。
A testing method which combined of eddy current testing with ultrasonic testing technology was proposed.
本文提出了一种涡流和超声波组合检测连续管的方法。
Ultrasonic spectrum analysis is the ultrasonic testing technology which puts into use the spectrum analysis theory and approach.
超声波频域分析是把频域分析的理论和方法应用于超声检测的技术。
The linchpin of undertaking high temperature ultrasonic testing is the control of the coupling, attenuation and route of the sound.
在高温状态下，超声波探伤实施的关键在于声耦合、声衰减和声路径的控制。
Methods 67pregnant women with gestational age of 10-14 weeks were measured for nuchal translucency thickness by ultrasonic testing.
方法对67例早期妊娠(孕10 -14周)病例进行超声检查测量颈项皮肤透明层厚度。
Normalization method of ultrasonic testing signal, the advantages and disadvantages of time domain, frequency domain were discussed.
探讨了超声波检测信号归一化处理的方法，以及时域信号归一化和频域信号归一化的优缺点。
The analysis of ultrasonic testing result indicated that main defects in the alloy were porosities likely caused by sintering thickness.
对检测结果的分析和验证表明， 其内部主要为孔隙类缺陷，产生原因可能是烧结厚度太厚所致。
Chaos arithmetic is used for reducing noise in leaking system, and a new kind of narrow band ultrasonic testing principle is introduced.
提出了利用混沌算法抑制噪声，采用新型窄频带超声检漏原理来进行泄漏检测的新方法。
Signal processing methods used in ultrasonic testing are reviewed, which cover noise suppressing, QNDE and optimization of driving signal.
文章综合报道了信号处理在超声检测的抑噪、缺陷的定性定量分析及优化驱动信号的几方面应用。
A high-powered ultrasonic testing system based on ARM and DSP was provided, and the circuit conjunction of the main interface was analyzed.
提出了一种基于ARM与DSP方案的高性能超声探伤仪，并分析了关键接口电路。
Automatic ultrasonic testing, manual ultrasonic testing and radiographic testing techniques were used on the inspection of embedded defects.
采用全自动超声波检测、手动超声波检测以及射线检测方法对预制缺陷进行了检测。
Electromagnetic testing and ultrasonic testing are the main points for materials hardness, hardness depth, crystallite size, limiting intensity etc.
对材料硬度、硬化层深度、晶粒大小、极限强度等主要采用电磁检测和超声检测。
This paper introduced the method of getting and identifying diffracted wave in routine ultrasonic testing and its application in the working practice.
介绍了在常规超声波检测中获取和识别衍射波的方法及其在工作实践中的应用。
This paper examines how to use AR Spectrum estimation method to improve the locating precision of the material 's flaw position in ultrasonic testing.
文中详细介绍了如何采用AR谱估计方法来提高超声无损探伤中对缺陷位置的精确定位。
The bidder shall have the qualification of NDE testing issued by the administrative department and must include the project of TOFD ultrasonic testing.
投标人须具有行政主管部门颁发的无损检测资质且必须包含TOFD超声检测项目。
Using a new material, the transverse wave Angle beam probes in ultrasonic testing of welds for steel space grid structures with welded joints are made.
通过采用一种新材料，制造出了用于焊接球节点钢网架焊缝超声波探伤的超声波横波斜探头。
Fracture mechanics has been applied for harmfulness analysis of flaws in ultrasonic testing of welds in order to improve the reliability of testing results.
在焊缝超声波探伤中应用断裂力学分析缺陷危害程度，以提高探伤结果的可靠性。
Fracture mechanics has been applied for harmfulness analysis of flaws in ultrasonic testing of welds in order to improve the reliability of testing results.
在焊缝超声波探伤中应用断裂力学分析缺陷危害程度，以提高探伤结果的可靠性。
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