权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Integrated Ultrasonic Imaging for Inspection of Near-Surface Defects in Safety-Critical Components

用于检查安全关键部件的近表面缺陷的集成超声波成像

基本信息

批准号：
EP/M016315/1
负责人：
Michael Lowe
金额：
$ 37.44万
依托单位：
Imperial College London
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2015
资助国家：
英国
起止时间：
2015 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FM016315%2F1
关键词：
Integrated Ultrasonic Imaging Inspection Near

项目摘要

The project aims to bring a step change improvement to the sensitivity of ultrasonic array imaging for Non Destructive Evaluation (NDE) to address the needs of the power generation industry. This will be based on the processing of the Full Matrix Capture (FMC) set of signals between all pairs of transducer elements, as is already established for state-of-the-art Beam-Forming (BF) imaging, but the approach for treating the signals will be entirely different. Instead of calculating a direct image from the FMC measurements, an inverse scattering approach will be pursued: this will involve iterations of unknowns in an integrated forward model of the array configuration, material properties and geometry, to find a best match to the measured signals. This approach has been shown to overcome conventional BF limitations in the context of the imaging of biological tissues, achieving intensified sensitivity and sub-wavelength resolution. This project will develop the concept for NDE, employing a specific, but commonly encountered, critical inspection task as a realistic example to focus the work. The proposal is being submitted within the UK Research Centre in NDE (RCNDE) to its targeted research programme. The proposal has been reviewed internally by the RCNDE, approved by the RCNDE board, and supported financially by two RCNDE industrial members.

该项目旨在为非破坏性评估（NDE）超声阵列成像的灵敏度带来一个阶跃变化，以满足发电行业的需求。这将基于所有换能器元件对之间的全矩阵捕获（FMC）信号集的处理，如已经针对最先进的波束形成（BF）成像建立的，但是用于处理信号的方法将完全不同。将采用逆散射方法，而不是根据FMC测量结果计算直接图像：这将涉及阵列配置、材料属性和几何形状的集成前向模型中未知数的迭代，以找到与测量信号的最佳匹配。这种方法已被证明克服了传统的BF限制的背景下，生物组织的成像，实现增强的灵敏度和亚波长分辨率。这个项目将发展无损检测的概念，采用一个具体的，但经常遇到的，关键的检查任务作为一个现实的例子，重点工作。该提案正在英国无损检测研究中心（RCNDE）内提交给其目标研究计划。该提案已由RCNDE内部审查，RCNDE董事会批准，并得到RCNDE两个工业成员的财政支持。