摘要
传统三维火焰温度场无损测量主要利用全息干涉方法或莫尔光栅方法,这些方法存在着测量系统复杂、成本高、数据获取困难等缺点。设计出一种基于多光谱辐射层析测温原理的三维光纤温度传感系统,系统具有使用灵活,测量精度高,获得数据便捷等优点。采用重排算法及MART技术相结合作为少投影数扇形束CT重建算法。四峰温度场模型的重建结果为确定光纤温度传感器旋转及扫描参数提供了依据。
The traditional methods used to detect 3D flame temperature fields are related with the holography interference or the More grating.Those methods have some disadvantages,such as complexity,costliness and being difficult to achieve data.A novel 3D optical fiber temperature sensor system is designed,which is based on multi-wavelength thermometry and optical computed tomograph.This system is easy to operate and has many advantages such as high precision,high velocity and so on.A fan-beam computed tomography algorithm is used,which combines the re-arrange algorithm with the Multiplicative Algebraic Reconstruction Technique.The rotation and scan parameters are decided according to reconstruction results of a four-peak temperature field model.
出处
《仪表技术与传感器》
CSCD
北大核心
2004年第1期1-4,14,共5页
Instrument Technique and Sensor
基金
中国航空科学基金项目(00I56004)
江西省测控工程研究中心基金项目资助(KG200204002)
关键词
辐射测温
扇形束重建
光学层析
光纤传感器
多光谱测温
温度场
Fan-beam Reconstruction
Optical Computed Tomograpy
Optical Fiber Sensor
Multi-wavelength Thermometry
