一、前言当今不接触测量传感器在三维测量机,过程测量和机器人等领域要求越来越多。许多不接触系统,如光学,电学,声学和气动学都已试过,其中有些已经在实际中得到应用。一般来说,光学系统胜过其它方法,因为它不受电和磁的噪声影响,并且精度很高。在普通的光 I. INTRODUCTION Today’s non-contact measurement sensors demand more and more in such fields as 3D measuring machines, process measurement and robots. Many do not touch the system, such as optics, electricity, acoustics and aerodynamics have been tried, some of which have been in practice. In general, optical systems outperform other methods because they are immune to electrical and magnetic noise and are highly accurate. In ordinary light