机械工程与自动化
機械工程與自動化
궤계공정여자동화
MECHANICAL ENGINEERING & AUTOMATION
2014年
6期
139-141,144
,共4页
激光三角法%非接触%测量系统%涂层厚度
激光三角法%非接觸%測量繫統%塗層厚度
격광삼각법%비접촉%측량계통%도층후도
laser triangulation%non-contact%measurement system%coating thickness
针对小口径石油管材内涂层湿膜厚度使用轮规或梳规检测存在效率低、精度差、对膜表面有破坏等缺点,提出应用激光三角法测量湿膜厚度。根据光学成像原理及几何学关系结合边界条件,以系统的最大灵敏度作为目标函数求出最优解,确定测量系统的各参数,并通过分析各参数对灵敏度的影响确定其公差。优化后的光学测量系统经Light Tools软件仿真,成像效果良好,满足在线非接触式测量要求。
針對小口徑石油管材內塗層濕膜厚度使用輪規或梳規檢測存在效率低、精度差、對膜錶麵有破壞等缺點,提齣應用激光三角法測量濕膜厚度。根據光學成像原理及幾何學關繫結閤邊界條件,以繫統的最大靈敏度作為目標函數求齣最優解,確定測量繫統的各參數,併通過分析各參數對靈敏度的影響確定其公差。優化後的光學測量繫統經Light Tools軟件倣真,成像效果良好,滿足在線非接觸式測量要求。
침대소구경석유관재내도층습막후도사용륜규혹소규검측존재효솔저、정도차、대막표면유파배등결점,제출응용격광삼각법측량습막후도。근거광학성상원리급궤하학관계결합변계조건,이계통적최대령민도작위목표함수구출최우해,학정측량계통적각삼수,병통과분석각삼수대령민도적영향학정기공차。우화후적광학측량계통경Light Tools연건방진,성상효과량호,만족재선비접촉식측량요구。
Using a wheel gauge or a comb gauge to detect the thickness of wet film on small-diameter oil pipes is of low efficiency and poor accuracy .To solve these problems ,an optical measurement system with the laser triangulation technique was put forward . Based on the optical imaging principle and the geometry boundary conditions ,by taking the maximum sensitivity as objective func-tion ,the parameters of the measuring system were calculated .By discussing the influence of various parameters on sensitivity ,their tolerances were determined .The optimized system was simulated by the Light Tools .The simulation results are accord with the de-sign target ,and satisfied the requirements of online non-contact measurement .