γ-射线测沙仪测量浮泥、淤泥容重的新进展  

New progress on density measurement for fluid silt and silt using γ-ray density gauge

作　　者：吴永进[1] 韦立新 郭吉堂[1] 王华 陆德中 

机构地区：[1]南京水利科学研究院水文水资源与水利工程科学国家重点实验室,江苏南京210029 [2]长江下游水文水资源勘测局,江苏南京210011

出　　处：《泥沙研究》2009年第6期60-64,共5页Journal of Sediment Research

摘　　要：改进后的γ-射线测沙仪不仅将γ-脉冲计数一个不漏的全部采集下来,还将同步数据采集的速度提高了1个数量级。通过现场测量和试验,取得了更完整更迅速的同步γ-计数和水深数据,对数据的整理分析有了新的认识和新的经验。还提出在一般情况下进行容重垂线测量时,探头的下放速度应大于15cm/s。The improved γ-ray density gauge can collect all of the γ-ray counting rate, meanwhile the Velocity of the collecting γ-ray counting rate can be increased by 10 times. From the field measurement and test, the synchronous data of the γ-ray counting rate and flow depth have been received more completely and more quickly, so new knowledge and experience have been obtained for the analyses and sorting out the data. Also, the sinking velocity of the detector must be more than 15cm/s for the measurement of the silt bulk density on the vertical lines.

关 键 词：γ-测沙仪 同步采集 浮泥 淤泥 容重 

分 类 号：P335.1[天文地球—水文科学]