高精度超声波界面计的原理和精度分析  

The principle of high - accuracy ultrasonic oil - water interface meter and its accuracy analysis

作　　者：靳海水[1] 卢杰[1] 梁军汀[1] 朱士明[1] 

机构地区：[1]同济大学声学研究所,上海200092

出　　处：《传感器技术》2000年第6期28-30,33,共4页Journal of Transducer Technology

摘　　要：精确测量液体间分界面的高度对许多工业生产具有重要意义。介绍了高精度超声波油水界面计的原理，即利用声波在不同液体中的声速不同测量液位的高度，并介绍了测试方法及优点，通过实例对其测量精度进行了分析。分析表明其精度优于２ｍｍ。The precise measurement of the position of interface between two different liquids is very important in many industrial production processes. The principle and measuring method of high - accuracy ultrasonic oil - water interface meter is introduced, its accuracy and advantage is analyzed via an example. The result shows that the accuracy is better then 2 mm.

关 键 词：超声波 界面计 声速 精度 均方差 

分 类 号：TB559[理学—物理]