基于三维激光扫描原理的球形罐容量计量方法研究  

Study on Volume Measurement Method for Spherical Tank Based on Three Dimension Laser Scanning Principle

作　　者：魏凯 宋述古 刘子勇[2] 

机构地区：[1]青岛市计量测试所,山东青岛266101 [2]中国计量科学研究院,北京100029

出　　处：《计量学报》2015年第6期607-609,共3页Acta Metrologica Sinica

基　　金：国家自然科学基金(51105347;51475440)

摘　　要：采用三维点云数据采集和建模技术对球形储罐容量计量进行了研究，主要包括球形储罐罐壁坐标采集原理、数据噪声滤波、粗差剔除、半径拟合和容量计算方法研究，并进行了试验数据分析。1000m^3球形罐试验数据表明：在赤道内半径测量方面，全站仪方法和三维激光扫描方法的测量的差值小于1mm；在竖向内半径测量方面，用全站仪测量方法和三维激光扫描方法的测量值之间的差值为16．1mm。三维激光扫描方法用于试验中球形罐容量测量的相对扩展不确定度为0．4％（k=2）。The method of sample and analysis for three dimension data cloud was discussed, and the main content included data sample principle, noise reduction, gross error identification, radius fitting and volume calculation. One preliminary experiment was done to test this method. The experimental result of one 1 000 m^3 sphere tank showed that there was consistency between total station method and data cloud analysis method for the measurement on the level diameter of spherical tank with one difference 1 mm, but for vertical diameter one big difference 16. 1 mm occurred between the data from two methods. The measurement uncertainty of laser scanning method used for tested the sphere tank volume calibration is 0.4% （k =2） .

关 键 词：计量学 球形储罐 容量 激光扫描 三维建模 

分 类 号：TB938.3[一般工业技术—计量学]