一种测量微小流量的方法  

A measuring method of small flow-rate

作　　者：刘延君[1] 王伟[1] 陆雄[1] 

机构地区：[1]甘肃工业大学基础科学系,甘肃兰州730050

出　　处：《甘肃工业大学学报》2001年第3期44-46,共3页Journal of Gansu University of Technology

摘　　要：为了测量密封间隙的泄漏量 ,利用市售水表和数字毫秒计相结合的方法 ,在相对误差小于1%的精度上测出了 0 .0 0 33× 10 - 3m3·s- 1的微小流量 ,而且能够使准确测量的最大流量与最小流量的比值达到 10In order to measure the leakage through the sealing gap, a water meter purchasable on the market and an associated digital millisecond stopwatch are employed in the measurement of as small flow rate as 0.003 3×10 -3 m 3·s -1 with a relative deviation of less than 1.0% and also make the ratio of measurable maximum flow rate to minimum one amount to great than 100. In the meantime, this method brings about a new application field for relatively low priced digital millisecond stopwatch commonly used in the labs.

关 键 词：微小流量 水表 数字毫秒计 测量方法 离心泵 密封间隙 泄漏量 

分 类 号：TK313[动力工程及工程热物理—热能工程] TH311[机械工程—机械制造及自动化]