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- Ultrasonic detection testing 超声探测实验
- The application of de noising by soft thresholding on wavelet transform to ultrasonic detection echo is discussed. 研究小波变换软阈值去噪方法在超声检测回波处理中的应用。
- We have Infrared Image and Ultrasonic detection machine, which promised the danger in time. 公司拥有红外热成像仪、超声波探测器等先进的仪器设备，能及时发现消防隐患。
- Objective To discuss the limitation of ultrasonic detection on prevenception utensil. 目的探讨超声在宫内节育器观察上的局限性。
- This text deals with ultrasonic detection of welding seams on ball and tube of space frame. 指出对空间钢网架球管焊缝进行超声波探伤,检测结果表明;
- Objective To explore the effect foot position on detection of speed of sound during ultrasonic detection of calcaneal bone mineral density. 目的了解足位变化对跟骨超声骨密度检测声速的影响。
- Identification of the influence of reinforcing bar (REBAR) for ultrasonic detection of crack depth in concrete was studied through analysis. 摘要通过理论分析提出了在超声波检测钢筋混凝土构件裂缝深度时判辨钢筋影响的方法。
- A simple beam test, a material property test, and a crack detection test were conducted to verity the performance of the measurement system. 本论文藉由简支梁、物质特性测试和裂缝侦测测试，来验证量测系统之性能。
- Because of poor prognosis of PVL,it will be necessary to undertake routine bedside cranial ultrasonic detection for all premature infants early after birth. 由于PVL患儿预后不良,对早产儿在生后早期进行常规床边头颅B超检查很有必要。
- It is emphasized that units of the mill for high (medium ) frequency treatment, ultrasonic detection, shearing/butt-welding and .o.f.oll forming have to be imported,while... 指出除高（中）频热处理、超声波探伤、剪切对焊及排辊成型等设备可以引进外，飞切机、水平螺旋活套、水压机和平头倒棱机等都可以实现国产化。
- Factors influencing ultrasonic detection rate of common duct stone other than inadequate patient preparation include common duct size and intraductal stone size. 影响总胆管结石检出之因素包括总胆管径的大小，以及总胆管结石的大小。
- With this modification, the problem of ultrasonic detection when stricture occurs and neoplasms are located in dead zone of the upper renal calices can be solved. 从而可以观察到导管前方一定区域的病变，初步解决了输尿管狭窄和肾脏上盏内部分盲区用导管超声探测的难点。
- It describe the principle of Particle Impact Noise Detection testing and the test method, expatiating some points for affecting the PIND test efficiency, illuminating the noticing problems at testing. 讲述了粒子碰撞噪声检测技术的原理及试验方法,对试验时应注意的问题进行了说明。
- He will be entrusted to a new residential institution specializing in decoration pollution detection testing and found that formaldehyde standard, indoor poisonous gas utilization. 他将新住宅交给一家专事室内装修污染检测机构检测，结果发现甲醛超标、室内有毒有害气体超标。
- The lie detector machine records our breathing, the electric resistance on our skin, and our heart rate and blood pressure.It takes at least three or four hours to run a standard lie detection test. 法务部检察司副司长陈文琪：藉著这样一个追寻跟研究，我们去找出检察官的核心价值，另外一方面，也希望藉著文物展的展出，把生硬的检察制度司法制度，能介绍给民众。
- A software of analyzing and processing ultrasonic detection signal with wavelet is developed with MATLAB6.1. MATLAB6.1 is a very useful and available tool for wavelet analysis and processing of ultrasonic signal. 利用MATLAB6.;1强大的各种工具箱、快速的编程风格和友好的图形界面等特点，编写了超声检测信号小波分析与处理软件，对超声检测信号进行了处理。 它在超声检测信号小波分析与处理方面是一个非常有用的工具。
- PCI-9820 data acquisition card has up to 120MS/s sampling rate,14-bit A/D resolution,based on PCI bus,and was applied in digital ultrasonic detection system,completed function of data acquisition model. A scan wave could be digitized, saved and processed. 本研究采用最高采样率为120MS/s,采样精度为14位,PCI总线的高速A/D数据采集卡PCI-9820构造了数据采集模块,实现了数字超声检测系统中A扫描波形数字化、存储、处理功能。
- Ultrasonic detection of corrosions in the internal walls of oil drill rods is described including the principle, method and technology. Experimental results show that it is feasible and effective. 介绍石油钻杆内壁腐蚀缺陷超声检测的原理、方法及工艺,给出了实验结果。结果表明,该方法检测钻杆内壁腐蚀缺陷是行之有效的。
- Ultrasonic detection of defects in heat-affected zones of stainless steel pipe welds is discussed. The feasibility of the method is verified by penetrant inspection of dissected pipes. 本文讨论不锈钢管道焊缝热影响区内缺陷的超声波检测方法;应用着色渗透探伤对解剖后的样品进行了验证;证明超声波探伤法的可行性.
- Utilizing the technique of ultrasonic detection on jointed and fractured rock masses, the author firstly measures the elastic wave velocity, then appraises the quality of different masses. 首先利用超声波探测法对节理裂隙岩体进行了声波测试,对不同的节理裂隙岩体进行了质量评估。
