High-spatial-resolution optical coordinate measuring machine

形状的精确测量是许多制造行业质量控制过程的重要组成部分。全球尺寸计量设备市场规模超过130亿美元，并以每年8%的速度增长。传统的计量实验室的主力设备--坐标测量机，精度达到十万分之一或更多，但速度慢，价格昂贵，不适合脆弱的样品。过去15年开发的光学替代方案以较低的成本提供了非常高的扫描速率，但有三个主要缺点：1.横向分辨率通常为1,000分之1，限制了测量几何和精细细节的能力；2.精度通常不超过20,000分之1；3.对于尺寸为0.5-2m的物体来说，“不合作”的表面(如有光泽的金属、黑色碳纤维复合材料)可能很难测量。相位视觉已经开发出成功的白光扫描仪，可以克服这些挑战，现在希望为更具挑战性的0.1-0.5m尺寸范围的样品开发一个产品系列，这将首次弥合光学扫描仪和机械扫描仪之间的性能差距。该项目将把通过之前的可行性研究得到验证和专利的知识产权推向市场。目标是：1.开发一种新的光学3D传感器原型，与当前技术水平相比，其横向分辨率提高5倍，测量精度提高5倍；2.实施结合新硬件平台的新算法，允许测量有光泽和低反射率的表面。阶段视觉的主要好处将是面向更广泛市场的新产品，从而允许更快的市场渗透。对终端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。

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.