用半导体应变计精确测量固体和液体的密度  

Precisely measuring solid and liquid density by using semiconductor strain gauge

作　　者：陈莹梅[1] 

机构地区：[1]韶关学院物理实验中心 广东韶关512005

出　　处：《实验技术与管理》2006年第9期42-44,共3页Experimental Technology and Management

摘　　要：采用半导体应变计测量物体的密度,可以提高物体密度测量的准确性.由于传感器体积小,灵敏度高,该技术已用于对少量液体密度测量和粒子沉降速率的计算机在线检测,对科学研究和实验教学均有重要应用价值.measuring substance density by using semiconductor strain gauge can improve the result＇s accuracy, because the sensor possesses the characteristics of small volume and precise sensitivity, this technique is used in some liquid density measurement and particle＇s sedimentation velocity computer on-line check, it has important application in research and experiment teaching.

关 键 词：固体 液体 密度 半导体应变计 

分 类 号：TH73[机械工程—仪器科学与技术]