资源库
应用注释
返回到资源库

Laterally Focused Arrays-Improved Defect Length Sizing


Automatic Fastener Hole inspection in Aircraft Overview

Improvements in probe manufacturing technology have led to improved defect length sizing. Phased Array CCEV [Concave Curvature in Elevation (axis)] probes have been created to improve accuracy in defect length sizing. Two primary applications, small diameter piping and onshore/offshore pipeline construction have been the primary applications where this technology has been exploited but many phased array users are applying them in other applications. This technology has led to improve difficult small diameter thin wall inspections as well as critical pipeline inspections.

CCEV Phased Array Probes Construction

Phased Array probes can be electronically focused in the forward or active axis by controlling the pulse and reception of the elements. Without complex array construction (dual/matrix array etc.) the passive axis has long been left to natural beam spread created by aperture and element dimensions and frequency of the probe. CCEV probes were created by applying a curvature in the elevation or side to side or passive axis dimension of a phased array probe. The appropriate curvature was established by laboratory trials and simulated beam simulations for the typical diameters and wall thickness for both pipeline construction welds and small diameter pipe and tube welds. Similar to applying a lens to an immersion probe the effect is a smaller beam spot width, which can lessen beam spread effects and allow better length sizing potential. Although primarily applied to the PipeWIZARD and COBRA scanning systems, the technology can be applied to almost any linear array probe design to fit other applications. An internal integrated lens allows the use of standard flat wedges and flat outside casing.

linear
internal focus
flat
curved

Illustration of flat and internally focused arrays with corresponding beam plot. Note significantly reduced beam width.

Results from PipeWizard System on 3mm wide reflector with normal 1D linear Flat Array and CCEV Curved Probe.
Results from PipeWizard System on 3mm wide reflector with normal 1D linear Flat Array and CCEV Curved Probe.
Results from PipeWizard System on 3mm wide reflector with normal 1D linear Flat Array and CCEV Curved Probe.
Results from PipeWizard System on 3mm wide reflector with normal 1D linear Flat Array and CCEV Curved Probe.

Results from PipeWIZARD System on 3mm wide reflector with normal 1D linear Flat Array and CCEV Curved Probe.

Results of inspection on 2.75” (70mm) dia. Pipe with induced 6.9mm x .5mm OD notch. Note signifigant sharpness of data and improved sizing using CCEV probe. Data taken utilizing Cobra Scanner. Sizing done via – 6dB drop method.
Results of inspection on 2.75” (70mm) dia. Pipe with induced 6.9mm x .5mm OD notch. Note signifigant sharpness of data and improved sizing using CCEV probe. Data taken utilizing COBRA Scanner. Sizing done via – 6dB drop method.

Cobra Semi-Automatic Scanner for Small Diameter Pipe and Tube and PipeWizard Automated System for Pipeline Construction. CCEV probes have been optimized for use in these two systems.
Cobra Semi-Automatic Scanner for Small Diameter Pipe and Tube and PipeWizard Automated System for Pipeline Construction. CCEV probes have been optimized for use in these two systems.

COBRA Semi-Automatic Scanner for Small Diameter Pipe and Tube and PipeWIZARD Automated System for Pipeline Construction. CCEV probes have been optimized for use in these two systems.

Conclusion

Laterally focused arrays have been created significantly improving length sizing potential in small diameter piping and pipeline construction systems. This technology can be applied to most 1D linear array probes, offering potential to improve sizing in many often performed phased array examinations. Standard CCEV arrays are listed in our phased array probe catalog.

Please contact SCE.PM@olympusndt.com or submit details via our online custom probe form to ask about custom CCEV probe possibilities for your applications.

Olympus IMS
应用所使用的产品

轻便的单组Omniscan SX仪器装有一个方便用户阅读的8.4英寸(21.3厘米)触摸屏,可提供性价比极高的检测解决方案。Omniscan SX仪器有两个型号:SX PA和SX UT。SX PA是一款16:64PR 仪器,与仅利用UT技术的SX UT一样,也配备了一个常规UT通道,用于脉冲回波(P/E)、一发一收(P-C)或衍射时差(TOFD)检测。
OmniScan MX2现在不仅可以与带有一个UT通道的新型相控阵模块(PA2)及一个用于TOFD(衍射时差)检测的新型双通道常规超声模块(UT2)配套使用,还可以使用新的软件程序。这些软件程序更进一步提高了业已极为成功的OmniScan MX2平台的性能。
这类专用于相控阵应用的探头的频率范围在0.5 MHz到18 MHz之间,可以有16、32、64或128个晶片。特殊的探头可以有几百个晶片。
PipeWIZARD是一款使用相控阵和常规超声技术的自动环焊缝检测系统(AUT)。这款设备专门为在陆上、海上的极端环境中进行现场焊缝到焊缝检测而设计。
COBRA手动扫查器与OmniScan MX探伤仪和16:128模块配套使用,用于对小直径管件进行周向焊缝检测。COBRA可以装配两个PA探头,检测外径在0.84英寸到4.5英寸范围之间的管件。
Sorry, this page is not available in your country
Let us know what you're looking for by filling out the form below.

This site uses cookies to enhance performance, analyze traffic, and for ads measurement purposes. If you do not change your web settings, cookies will continue to be used on this website. To learn more about how we use cookies on this website, and how you can restrict our use of cookies, please review our Cookie Policy.

OK