羽毛等轻质物密度测定方法探究  

Research on Measuring Method for Density of the Feather

作　　者：张泓筠 杨永亮 吴曙芳 

机构地区：[1]凯里学院大数据工程学院,贵州凯里556011

出　　处：《大众科技》2020年第11期112-114,共3页Popular Science & Technology

基　　金：黔教合KY字[2019]079;黔教合KY字[2018]035;专项基金(BS201329);黔科合LH字[2017]7173。

摘　　要：针对密度测量实验教学提出的问题——鸟类羽毛等轻质物在自然状态下密度的测试,设想了一种使用注射器简单方法测定密度,其中借鉴排液体方法,利用理想气体状态方程发展排空气法测试体积。基于此装置进一步提出用液压平衡方法测试任意液体密度。同时,设计了排除空气浮力准确测量轻质物质量方法。In view of the problem of density measurement experiment teaching-the density measurement of bird feather and other light objects in natural state,a simple method to measure it with syringe is proposed,in which the method of displaced liquid is used for reference,and the equation of state of ideal gas is used to develop displaced air method to test volume.Based on this device,a new idea of measuring the density of any liquid by hydraulic balance method is put forward.Meanwhile,it is designed how to eliminate air Buoyant force to obtain the mass of light-weight object.

关 键 词：状态方程 排液法 排气法 液压平衡 浸没称量 

分 类 号：O4[理学—物理]