红外与激光工程
紅外與激光工程
홍외여격광공정
INFRARED AND LASER ENGINEERING
2013年
7期
1804-1808
,共5页
王洋%颜昌翔%汪逸群%高志良
王洋%顏昌翔%汪逸群%高誌良
왕양%안창상%왕일군%고지량
扫描镜%误差分析%坐标变换%蒙特卡罗法
掃描鏡%誤差分析%坐標變換%矇特卡囉法
소묘경%오차분석%좌표변환%몽특잡라법
scanning mirror%error analysis%coordinate transformation%Monte Carlo method
为了满足非接触式扫描镜检测系统的位置检测精度要求,分析系统各误差源对扫描镜位置检测精度的影响,制定详细的系统总体误差分配方案。分析系统的主要误差源,根据系统相关参数,利用齐次坐标转换法,建立系统引入误差量的数学模型,计算各误差源的误差传递系数;参考误差传递系数,根据加工、装调和检测水平相关数据,应用蒙特卡罗法分析计算,进行误差分配。结果表明,目前的加工、装调能力无法达到该系统的精度要求,提出了一种依据目前的检测水平进行误差分配的方法,最终应用误差补偿实现扫描镜位置检测极限误差优于2.5"。采用一字线激光器作为光源,通过0.5"莱卡经纬仪和千分表进行检测,达到系统要求的检测精度。
為瞭滿足非接觸式掃描鏡檢測繫統的位置檢測精度要求,分析繫統各誤差源對掃描鏡位置檢測精度的影響,製定詳細的繫統總體誤差分配方案。分析繫統的主要誤差源,根據繫統相關參數,利用齊次坐標轉換法,建立繫統引入誤差量的數學模型,計算各誤差源的誤差傳遞繫數;參攷誤差傳遞繫數,根據加工、裝調和檢測水平相關數據,應用矇特卡囉法分析計算,進行誤差分配。結果錶明,目前的加工、裝調能力無法達到該繫統的精度要求,提齣瞭一種依據目前的檢測水平進行誤差分配的方法,最終應用誤差補償實現掃描鏡位置檢測極限誤差優于2.5"。採用一字線激光器作為光源,通過0.5"萊卡經緯儀和韆分錶進行檢測,達到繫統要求的檢測精度。
위료만족비접촉식소묘경검측계통적위치검측정도요구,분석계통각오차원대소묘경위치검측정도적영향,제정상세적계통총체오차분배방안。분석계통적주요오차원,근거계통상관삼수,이용제차좌표전환법,건립계통인입오차량적수학모형,계산각오차원적오차전체계수;삼고오차전체계수,근거가공、장조화검측수평상관수거,응용몽특잡라법분석계산,진행오차분배。결과표명,목전적가공、장조능력무법체도해계통적정도요구,제출료일충의거목전적검측수평진행오차분배적방법,최종응용오차보상실현소묘경위치검측겁한오차우우2.5"。채용일자선격광기작위광원,통과0.5"래잡경위의화천분표진행검측,체도계통요구적검측정도。
In order to meet the requirements of the no n-contact detection system's position detection accuracy which was applied to detect the movement characteristics of scanning mirror. The analysis on various error sources of the detection system was made and all the errors which affect the position detection accuracy of the scanning mirror were detailed. The mathematical model with errors was set up and the transferring coefficients of the error sources were calculated based on the coordinate transformation method and the relevant parameters of the system. According to the error transferring coefficients and the related data of the current processing and assembly, the calculation of error distribution was given with the Monte Carlo method. The results show that the current processing, assembly capacity can't meet the accuracy requirements of the system, and a new method of the error distribution based on the current detection was put forward. The scanning mirror position detection limits of error was better than 2.5". In order to realize the detection accuracy of the system requirements, the line laser was used as the light source, and the 0.5" Lycra theodolite and micrometer were applied to detect the assembly.