摘要
以饱和盐溶液作为相对湿度标准,通过测量一系列饱和盐溶液的水分活度值,经修正、标准差计算以及重复测量,得到水分活度测量不确定度。
The water activity measuring values were obtained from a number of saturated salt solutions which used as relative humidity reference. The calibration procedure, standard deviations calculation and the duplicate measurement of the sample were taken to evaluated the uncertainty for water activity measurement.
出处
《食品与机械》
CSCD
北大核心
2009年第6期117-120,共4页
Food and Machinery
基金
上海市科学技术委员会应用技术开发专项资金(编号:04-027)
关键词
水分活度测量
相对湿度标准
测量不确定度
Water activity measurement
Relative humidity reference
Uncertainty
