Measuring the thickness of metal pipe walls with synthetic aperture ultrasound imaging

Pure Technologies在关键基础设施的检查、监控和管理创新技术的开发和应用方面处于世界领先地位。无损检测（NDT），如超声波技术，可用于估计壁厚，以确定沿着管道需要立即更新的特定区域。与其他传统的NDT相比，超声技术 ** 具有准确的位置检测，高灵敏度和效率，以及低成本。从工业的角度来看，它受到了极大的关注。传统的超声波测厚装置接收到的信号包含丰富的信息，例如与涂层或金属管道表面的腐蚀有关的信息。Pure Technologies遇到的一个问题是，当超声波束不垂直于管道的测量表面时，会导致反射信号很弱或没有反射信号。在这个项目中，我们计划通过修改该公司现有系统中的换能器来测试构建低成本合成孔径聚焦（SAF）系统的可行性。SAF系统可用于提高信号的可探测性，并减少测量过程中由于斜入射而造成的信号损失。

Pure Technologies is a world leader in the development and application of innovative technologies for**inspection, monitoring and management of critical infrastructure. Non-destructive testing (NDT), such as**ultrasound techniques, can be used to estimate the wall thickness for identifying the specific areas along a**pipeline that requires the immediate renewal. Compared to other conventional NDTs, ultrasound techniques**have accurate location detection, high sensitivity and efficiency, and low cost. It has received a significant**attention from the industrial point of view. The signal received by the conventional ultrasound thickness**measurement device contains abundant information such as that related to the corrosion either on the coating or**on the surface of the metal pipe .**One issue experienced by Pure Technologies is when the ultrasound beam is not perpendicular to the measured**surface of pipeline, it would result in a weak or no reflected signal. In this project , we plan to test the**feasibility of building a low-cost synthetic aperture focusing (SAF) system by modifying the transducers in the**existing system of the company. The SAF system can be used to improve the detectability of signals and to**reduce the signal loss due to the oblique incidence in the measurement process.