Integrated platform for coordinate metrology to enhance adaptability

坐标计量集成平台，增强适应性

• 批准号: 376298-2011
• 负责人: Barari, Ahmad
• 金额: $ 1.68万
• 依托单位: University of Ontario Institute of Technology
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=638358
• 关键词: Integrated; platform; coordinate; metrology; enhance

The purpose of this research program is to develop a more reliable platform for coordinate metrology, to enhance adaptability and sustainability of the corresponding engineering/ scientific applications that need to use the information of geometrical or topological characteristics of surfaces. A typical manufacturing process reduces waste by compensatory works on defected parts, when the process is capable to recognize patterns and nature of possible errors to eliminate or correct them adaptively. This adaptability is the key to achieve greater sustainability for manufacturing processes or other engineering/scientific applications. Sequential performance of three analytical tasks of Point Measurement Planning (PMP), Substitute Geometry Estimation (SGE), and Deviation Zone Evaluation (DZE) in today's coordinate metrology, is subject to different sources of uncertainties, due to estimation of some aspects of a probability distribution on the basis of sampling. This can adversely affect the reliability of inspection. From the applicant's past research, developing concurrency in controlling the three mentioned computational tasks results in valuable opportunities to reduce inspection uncertainties. This novel approach is called an Integrated Inspection System (IIS) and it is an efficient solution to combat the inherent uncertainties in coordinate metrology. In IIS, an estimation of geometric deviations by DZE needs to be dynamically utilized by PMP to acquire the most useful dataset from the measuring surface. Hence, gradual progress of DZE has an important role in IIS implementation. Moreover, as the number of measured points increases, estimation of the optimum geometry by SGE becomes a challenging task due to the high nonlinearity of the resulting optimization problem. The IIS research program aims to develop customized computational methodologies to enable an infrastructural change in today's coordinate metrology workplace, to reduce levels of uncertainties and to increase sustainability in various Canadian industrial sectors. It will also have a direct impact on training of highly qualified personnel who can become the leaders of Canada's future metrology industry.

该研究计划的目的是开发一个更可靠的坐标平台，以增强需要使用表面几何或拓扑特征信息的相应工程/科学应用的适应性和可持续性。当该过程能够识别出可能的错误的模式和性质以自适应地消除或纠正这些错误的情况时，典型的制造过程通过补偿工作减少了废物。这种适应性是为制造过程或其他工程/科学应用实现更大可持续性的关键。在当今的坐标计量学中，点测量计划（PMP）的三个分析任务（PMP），替代几何估计（SGE）和偏差区评估（DZE）的顺序性能受到不同的不确定性来源，这是由于基于抽样的概率分布的某些方面的估计。这可能会对检查的可靠性产生不利影响。从申请人过去的研究中，在控制这三个提到的计算任务方面发展并发，带来了减少检查不确定性的宝贵机会。这种新颖的方法称为综合检查系统（IIS），它是应对坐标计量学中固有不确定性的有效解决方案。在IIS中，需要通过PMP动态利用DZE对几何偏差的估计来从测量表面获取最有用的数据集。因此，DZE的逐步进步在IIS实施中起着重要作用。此外，随着测量点的数量的增加，由于所得优化问题的高非线性，SGE对最佳几何形状的估计成为一项艰巨的任务。 IIS研究计划旨在开发自定义的计算方法，以使当今的协调计量工作场所的基础设施变化，以减少不确定性水平并提高加拿大各个工业领域的可持续性。这也将对可以成为加拿大未来计量行业的领导者的高素质人员的培训产生直接影响。