%0 Journal Article
%T Precision and Errors Analysis of PIV Used for the Watertunnel Flow Field Displaying and Measuring System<br>PIV系统水洞流场测量准确度与误差分析
%A RUAN Chi
%A SUN Chuan-dong
%A BAI Yong-lin
%A WANG Yi-shan
%A <br>阮驰
%A 孙传东
%A 白永林
%A 王屹山
%J 光子学报
%D 2008
%I 
%X In order to improve the measuring accuracy,the limitations to the detecting precision of the PIV were discussed and the improve methods were given.The experiments were designed to measure the non-model and the ball model flow fields in the watertunnel.The measuring accuracy of the non-model flow field with the flow speed of 6m/s was less than 1.3%.By comparing the theory value and the detecting results of the ball model flow fields,the accuracy of the majority area in the detecting domain was less than 2%,but in the ball boundary and the area beside the link was 6%~8%.In the end,the errors were analyzed for the system future improvement.
%K PIV
%K Flow field
%K Ball-model
%K Errors analysis<br>粒子图像测速
%K 水流场
%K 球模型
%K 误差分析
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=DE0D9894BC494FD34BF4DFBC973E9AC6&yid=67289AFF6305E306&vid=42425781F0B1C26E&iid=F3090AE9B60B7ED1&sid=2DD7160C83D0ACED&eid=67289AFF6305E306&journal_id=1004-4213&journal_name=光子学报&referenced_num=0&reference_num=7