Development of ultrasonic wave inversion methods

超声波反演方法的发展

• 批准号: RGPIN-2020-05802
• 负责人: Belanger, Pierre
• 金额: $ 1.97万
• 依托单位: École de technologie supérieure
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=754402
• 关键词: Development; ultrasonic; wave; inversion; methods

Infrastructure in developed countries is aging rapidly, and more often than not, the cost of replacement is prohibitive. In medical imaging, significant efforts are dedicated to the use medical ultrasound in clinical settings in order to simplify the diagnosis of diseases such as osteoporosis and to reduce exposure to ionizing radiation. In this context, research in ultrasonic nondestructive evaluation and medical ultrasound will lead to major innovations over the next couple of decades. The proposed research program aims at developing methods for going beyond simple defect detection and enabling the characterization of flaws and the material properties of the inspected medium. The projects proposed in this research program will consider applications in nondestructive evaluation and medical ultrasound. For example, in bone quality assessment, the current gold standard is dual-energy X-ray absorptiometry (DXA). DXA exposes patients to ionizing radiation, is only sensitive to bone mineral density and is typically performed in hospitals. On the other hand, ultrasonic waves are sensitive to all of the material properties of the medium inside which they are propagating, are non-ionizing and can be applied in a clinical setting. Inversion methods using ultrasonic bulk waves and ultrasonic guided waves will be developed for bone quality assessment. Interestingly, both inversion methods will also be applied to nondestructive testing applications: inhomogeneous material characterization and adhesive bond quality assessment. Finally, the scattered wave field acquired during phased array ultrasonic testing will be inverted using artificial intelligence trained on simulated data. The research program will heavily leverage state-of-the-art simulation tools and laboratory instruments that are already available in Prof. Belanger's laboratory. The training plan and the research group environment will help train 3 PhD students and 3 MASc students to become the next generation of innovators in ultrasonic technologies. Canada is already a major global player in this field, with multiple equipment manufacturers and service providers established throughout the country. The highly qualified personnel trained in this research program will have highly desirable skills for this industry.

发达国家的基础设施正在迅速衰老，而且替代成本往往是过于艰难的。在医学成像中，为了简化骨质疏松症（例如骨质疏松症）的诊断，并减少接触电离辐射的疾病，为在临床环境中进行了重大努力。在这种情况下，超声波无损评估和医学超声波的研究将在接下来的几十年中导致重大创新。 拟议的研究计划旨在开发超出简单缺陷检测的方法，并使缺陷的表征和检查介质的材料特性。本研究计划中提出的项目将考虑无损评估和医学超声波的应用。例如，在骨质质量评估中，当前的金标准是双能X射线吸收法（DXA）。 DXA暴露于病人的电离辐射，仅对骨矿物质密度敏感，通常在医院进行。另一方面，超声波波对它们在内部传播的介质的所有材料特性敏感，是非电源化的，并且可以在临床环境中应用。使用超声波大波和超声引导波的反演方法将开发用于骨质量评估。有趣的是，这两种反转方法也将应用于无损测试应用：不均匀的材料表征和粘合键质量评估。最后，使用对模拟数据训练的人工智能在分阶段阵列超声测试期间获得的散射波场倒置。该研究计划将大力利用Belanger教授实验室已经可用的最先进的模拟工具和实验室工具。 培训计划和研究小组环境将帮助培训3名博士生和3名MASC学生，成为超声技术的下一代创新者。加拿大已经是该领域的主要全球球员，全国各地建立了多个设备制造商和服务提供商。在该研究计划中接受培训的高素质人员将对该行业具有高度理想的技能。