SENSORS: A New Laser-Based Sensing System for Monitoring and Control of Webs

【摘要】卷材这个术语是用来描述以连续的、柔性的条形制造和加工的材料。例子包括塑料、纸张、纺织品、金属和复合材料。本课题开发了一种新型的基于激光的光纤传感网络监测与控制系统。传感技术独特地结合了多普勒频移的概念，从网络边缘散射光，光纤的方向灵敏度特性，和准直激光。这一技术集成将导致一种多功能网板传感系统的发展，该系统可以测量网板的横向位置、横向速度、传输速度、颤振和剖面。由于该传感方案使用的是来自卷筒纸边缘的散射光，因此该技术同样适用于透明和不透明的卷筒纸材料，而现有的卷筒纸传感方法则并非如此。本研究专案可望推动卷筒纸处理与感测技术的发展，并改善卷筒纸生产线的运作。这是一个由传感器倡议NSF 04-522支持的项目

Abstract0428397PI: P. PagillaOklahoma State UnivThe term web is used to describe materials, which are manufactured and processed in a continuous, flexible strip form. Examples include plastics, paper, textiles, metals, and composites. A novel laser-based fiber optic sensing system for monitoring and control of a web is developed in this project. The sensing technique uniquely combines concepts from Doppler's frequency shift of scattered light from the web edge, directional sensitivity property of the optical fibers, and collimated laser light. This technical integration will lead to the development of a versatile web sensing system that can measure web lateral position, lateral velocity, transport velocity, flutter, and profile. Since the sensing scheme uses the scattered light from the web edge, the technique is equally suitable for use with transparent as well as opaque web materials, which is not the case for existing web sensing methods. This research project is expected to advance the science of web handling and sensor technology, and improve operation of web process lines. This is a project supported under Sensors Initiative NSF 04-522