In Situ Form Metrology in Manufacturing by Combining Engineered Optical Scattering and Photogrammetry

结合工程光学散射和摄影测量的制造中的原位形状计量

• 批准号: 0928364
• 负责人: Angela Davies
• 金额: $ 46.41万
• 依托单位: University of North Carolina at Charlotte
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-08-01 至 2013-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0928364&HistoricalAwards=false
• 关键词: Situ; Form; Metrology; Manufacturing; Combining

The research objective of this award is to apply mapping sciences from the disciplines of photogrammetry and remote sensing to realize a new dimensional measurement capability in manufacturing engineering that is inexpensive, non-contact, remote, and applicable to in situ measurements. The approach is to use a laser beam or a beam pattern generated with a diffractive optical element and scatter this beam(s) either from the part being manufactured itself, or from engineered structures placed into the manufacturing environment. Photogrammetry will be used to determine absolute coordinates of reflected spots in the environment and this information will be mapped back to the desired dimensional information. Effectively, the part measurement is moved out away from the part by using photogrammetry to measure the optical scattering from the part.If successful, this method will open a new field of metrology research. Success will mean demonstrating dimensional measurements with uncertainty of 1 part in 100,000 in two important manufacturing applications, representing a significant technical and economic advance: (1) on machine metrology of free-form diamond machined surfaces and (2) in situ and dynamic metrology of large continuous polishing platens used for high precision optic polishing. The research necessitates graduate education experience in optics, precision metrology, and mechanical engineering. The visibly appealing features of the measurement will be exploited and learning tools developed for both students and the general public. This will include modules for undergraduate and graduate advanced optics lab courses, a demo module for the general public for use by local student chapters in optics and engineering societies, and a module for use at advertisement and recruitment booths at professional society meetings.

该奖项的研究目标是应用摄影测量和遥感学科的测绘科学，在制造工程中实现一种新的维度测量能力，这种能力是廉价的、非接触的、远程的，适用于现场测量。方法是使用激光或由衍射光学元件产生的光束图案，并从被制造的部件本身或从放置到制造环境中的工程结构散射该光束(S)。摄影测量将被用来确定环境中反射点的绝对坐标，该信息将被映射回所需的维度信息。利用摄影测量法测量零件的光散射，有效地将零件的测量移出零件，如果成功，将为计量研究开辟一个新的领域。成功将意味着在两个重要的制造应用中展示不确定度为1/100,000的尺寸测量，代表着重大的技术和经济进步：(1)自由形状钻石加工表面的机器计量；(2)用于高精度光学抛光的大型连续抛光平台的原位和动态计量。这项研究需要光学、精密计量学和机械工程方面的研究生教育经验。将利用这项测量的明显吸引人的特点，并为学生和普通公众开发学习工具。这将包括本科生和研究生高级光学实验室课程的模块，供普通公众使用的演示模块，供光学和工程学会的本地学生分会使用，以及用于专业协会会议的广告和招聘摊位的模块。