摘要:
In order to investigate the influences of external factors on the test results of TM710e moisture meter, the effects of installation location (height and distance), material status (shape, moisture content, temperature, color and movement pattern), test environment (light intensity)on the test results were studied by single-factor multi-level experiments. The results showed that: 1) The test results of moisture meter were affected by installation location and material status, but not significantly influenced by test environment (light intensity). The influence degrees of different factors were installation distance > installation height, material color > material shape, moisture content in material > material temperature, and movement pattern of material >light intensity, respectively. 2)Moisture meter needed to be recalibrated to determine an appropriate correction coefficient for different material status. 3)The appropriate distance between moisture meter and the outlet of cut tobacco drying cylinder was 1.5-6.0 m, and appropriate installation height was 0.15-0.35 m. Therefore, the test environment and installation method of TM710e moisture meter should be dependent on the effects of all influencing factors.%为确定外部因素对TM710e系列水分仪测定结果的影响,采用单因素多水平试验设计方法,研究了不同安装位置(高度、距离)、物料状态(物料形态、物料含水率、温度与颜色、运动状态)、测试环境(光强度)对水分仪测试结果的影响.结果表明:①不同安装位置、物料状态都会对水分仪测试结果产生影响,而测试环境(光强度)对测量结果无显著影响.对测定含水率的影响大小分别为安装距离>安装高度,物料颜色>物料形态,物料含水率>物料温度,运动状态>光强度.②不同物料状态下,水分仪需要重新校准,以确定合适的修正系数.③水分仪应安装在距离烘丝滚筒出口1.5~6.0 m处,安装高度在0.15~0.35 m之间.因此,生产中应根据各因素对含水率的影响确定测试环境及安装位置,优化和建立TM710e水分仪的安装方法.