音叉共振式液体密度测量实验的设计与实现  

Design and realization of measuring liquid density by tuning fork resonance

作　　者：张洪[1] 曹常芳[1] 皮厚礼[1] 

机构地区：[1]华中科技大学物理学院,湖北武汉430074

出　　处：《物理实验》2016年第12期16-18,共3页Physics Experimentation

摘　　要：在原有的DH4615型音叉受迫振动与共振实验仪的基础上,设计了液体密度测量传感装置,通过实验数据测量、定标,对水、乙醇、汽油等液体通过测量谐振频率求得待测液体的密度,测量精度符合实验要求.Based on the forced vibration and resonance equipment of DH4615, which is based on tuning fork, a liquid density measurement sensor was designed. After calibration, the resonance fre- quency of liquids such as water, alcohol and gasoline were measured, and the densities of these liquids were obtained. The measurement accuracy achieved the requirements.

关 键 词：音叉共振 液体密度 共振频率 传感器 

分 类 号：O422.6[理学—声学]