摘要
以3台数字气压计为研究对象,对其进行性能测试,并对其结果进行误差分析、不确定度评定及验证。通过对大量测试数据的分析和研究表明:数字气压计的误差来源主要为线性误差和回程误差;不确定度主要来源于测量数据的重复性、标准器的误差、被测表的分辨力。高温、低温、常温测试试验结果显示:该型号的气压计示值误差不大于0.17hPa,线性误差不大于0.07hPa,回程误差不大于0.03hPa,不确定度不超过0.06hPa。
There are three digital barometers which are taken as research object to test theirperformance in this paper. Through performance testing of these barometers, the error of results wasanalyzed, besides, the uncertainty was evaluated and validated. Through analyzing and researchingextensive testing data, it shows that digital barometer＇s errors are mainly from linearity and hysterisis,and then the uncertainty of results is mainly from the repeatability of testing data, the error ofstandard meter and the resolution ratio of tested instrument. The error of this model digital barometershows that the error of result is less than 0.17 hPa, the linearity error is less than 0.07 hPa, thehysterisis error is less than 0.03 hPa, and then the uncertainty is not exceed 0.06 hPa after theexperiments in high temperature, low temperature and room temperature.
出处
《气象水文海洋仪器》
2014年第3期12-14,18,共4页
Meteorological,Hydrological and Marine Instruments
关键词
气压
性能测试
误差
不确定度
pressure
performance test
error
uncertainty
