High-spatial-resolution optical coordinate measuring machine

高空间分辨率光学三坐标测量机

• 批准号: 720209
• 金额: $ 29.39万
• 依托单位: PHASE VISION LTD
• 依托单位国家: 英国
• 项目类别: GRD Development of Prototype
• 财政年份: 2012
• 资助国家: 英国
• 起止时间: 2012 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=720209
• 关键词: spatial; resolution; optical; coordinate; measuring

Accurate measurement of shape forms a vital part of the quality control process for manymanufacturing industries. The worldwide dimensional metrology equipment market is over $13bn and growing at 8% p.a. The traditional workhorse of the metrology lab, the Coordinate Measurement Machine, is accurate to 1 part in 100,000 or more, but is slow, expensive, and unsuitable for fragile samples. Optical alternatives developed in the last 15 years offer very high scan rates at reduced cost, but have three main drawbacks:1. Lateral resolution is typically 1 part in 1,000, limiting ability to measure geometricalfine detail;2. Accuracy is typically no more than 1 part in 20,000;3. ‘Un-cooperative’ surfaces (e.g. shiny metals, black carbon fibre composites) can bedifficult to measure.Phase Vision has developed successful white light scanners that overcome these challenges for objects of 0.5 – 2m size, and now wishes to develop a product family for samples in the more challenging 0.1 – 0.5 m size range that will - for the first time - bridge the performance gap between optical and mechanical scanners. The project will bring to market IP that has been validated and patented through previous feasibility studies. Objectives are:1. Develop a prototype for a new optical 3D sensor with up to 5x improvement in lateralresolution and a 5x improvement in measurement accuracy compared to the current state of the art;2. Implement novel algorithms incorporating the new hardware platform to allowmeasurement of both shiny and low reflectivity surfaces.The main benefit to Phase Vision will be new products that will address a broader market and thus allow faster market penetration. Benefits to the end users will include enhanced manufacturing efficiency; reduced time to market for new products; and increased efficiency or performance of products such as composite wings or jet engine turbine blades, all of which will translate to economic savings and reduced carbon footprints.

形状的精确测量是许多制造业质量控制过程的重要组成部分。全球尺寸计量设备市场超过130亿美元，每年增长8%。计量实验室的传统主力，坐标测量机，精确到十万分之一或更多，但速度慢，价格昂贵，不适合易碎样品。在过去15年中开发的光学替代品以降低的成本提供非常高的扫描速率，但具有三个主要缺点：1.横向分辨率通常为千分之一，限制了测量几何细节的能力;2.精度通常不超过20，000分之一;3.“不合作”表面Phase Vision已经开发出成功的白色光扫描仪，克服了0.5 - 2米大小物体的这些挑战，现在希望开发一个产品系列，用于更具挑战性的0.1 - 0.5 m尺寸范围内的样品，这将是第一次，弥补光学和机械扫描仪之间的性能差距。该项目将把通过先前的可行性研究验证和获得专利的知识产权推向市场。目标是：1.开发一种新型光学3D传感器的原型，与现有技术相比，横向分辨率提高了5倍，测量精度提高了5倍;2.实施新的算法，结合新的硬件平台，允许测量有光泽和低反射率的表面。相位视觉的主要好处将是新产品，将解决更广泛的市场，从而允许更快的市场渗透。对最终用户的好处将包括提高制造效率;缩短新产品的上市时间;以及提高复合材料机翼或喷气发动机涡轮机叶片等产品的效率或性能，所有这些都将转化为经济节约和减少碳足迹。