摘要
研制了空气密度测量仪,能够同时测量并直接显示空气的温度、湿度、压强和密度.密封空气的测量结果较好地验证了理想气体状态方程,空气密度测量不确定度为0.1kg/m3,湿度的不确定度对密度测量的影响最大.
An apparatus for measuring air density was fabricated, which could simultaneously test and show four air parameters, temperature, humidity, pressure and density. The four air parameters of enclosed air were measured by the apparatus, and the ideal gas state equation was well proved by the results. The uncertainty of the obtained air density was 0.1 kg/cm3. It was found that the uncer- tainty of the humidity had the most impact on the error of air density measurement.
出处
《物理实验》
2013年第12期41-44,共4页
Physics Experimentation
基金
北京高等学校青年英才计划项目(No.YETP1592)
北京工业大学博士启动基金资助项目(No.X0006015201101)
北京工业大学教育教学研究课题资助(No.ER2013C19)
关键词
空气密度
不确定度
温度
湿度
压强
air density apparatus
uncertainty
temperature
humidity
pressure
