Non-Contact Video Extensometer

非接触式视频引伸计

• 批准号: 458775-2014
• 负责人: Martone, Patrick
• 金额: $ 1.82万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments - Category 1 (<$150,000)
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=542033
• 关键词: Non; Contact; Video; Extensometer

The University of British Columbia (UBC) is a world-renowned centre for biomechanics excellence. Researchers in several UBC faculties and departments investigate material properties of biological tissues and engineer novel biomaterials for industrial and medical applications. The funding requested in this grant application is to acquire a high resolution Non-Contact Video Extensometer, which will allow researchers to safely and accurately measure strain (i.e., stretch) during tensile testing of experimental and biosynthesized materials. The proposed non-contact video extensometer uses a high-resolution digital camera and real-time image processing to precisely calculate strain (3 µm resolution) by tracking two point marks on the test specimens. This methodology will improve strain measurements of biological test specimens with highly variable thickness and composition (e.g., algae, woody stems, carbon fibres, artery wall). The non-contact video extensometer will be a state-of-the-art addition to the biomechanics facilities at UBC, significantly advancing the experimental breadth and capabilities of biomechanics researchers across campus. The extensometer will enhance existing and foster new synergistic interactions and interdisciplinary collaborations among researchers, as this application is supported by six research faculty (Martone, Gosline, Shadwick, Mansfield, Li, Ko) in five different departments at UBC (Botany, Zoology, Forestry, Chemistry, Materials Engineering).

英属哥伦比亚大学（UBC）是世界著名的生物力学卓越中心。UBC几个院系和部门的研究人员研究生物组织的材料特性，并设计用于工业和医疗应用的新型生物材料。本拨款申请中要求的资金是购买高分辨率非接触式视频拉伸计，这将使研究人员能够在实验和生物合成材料的拉伸测试期间安全准确地测量应变（即拉伸）。所提出的非接触式视频拉伸仪采用高分辨率数字相机和实时图像处理，通过跟踪试件上的两个点标记来精确计算应变（3µm分辨率）。该方法将改进具有高度可变厚度和组成的生物测试标本（例如，藻类，木质茎，碳纤维，动脉壁）的应变测量。非接触式视频延伸仪将成为UBC生物力学设施的最新技术补充，大大提高了校园内生物力学研究人员的实验广度和能力。由于该应用程序由UBC五个不同部门（植物学，动物学，林业，化学，材料工程）的六个研究人员（Martone, Gosline, Shadwick, Mansfield, Li, Ko）提供支持，因此该扩展计将加强现有的并促进研究人员之间的新的协同互动和跨学科合作。