CAJ | 학술논문

为了实现谷物干燥过程中水分值的精确控制，建立了一种适用于干燥机的谷物干燥水分在线测量系统。该系统基于电阻法测量原理，采用具有碾碎、挤压、测阻多重作用的螺旋式测阻机构采集信号，通过温度补偿与电路环境温度恒定相结合的方法避免温度对测量精度的影响，并以 STC89 C52单片机为核心完成数据采集、运算、显示及干燥机工作状态的控制。
위료실현곡물간조과정중수분치적정학공제，건립료일충괄용우간조궤적곡물간조수분재선측량계통。해계통기우전조법측량원리，채용구유년쇄、제압、측조다중작용적라선식측조궤구채집신호，통과온도보상여전로배경온도항정상결합적방법피면온도대측량정도적영향，병이 STC89 C52단편궤위핵심완성수거채집、운산、현시급간조궤공작상태적공제。
To realize accuracy control of grain moisture in the drying process , an online measuring system applying to grain moisture measurement of the crop dryer was established .The system based on the principle of resistivity method and collect the signal by the screw type measuring resistivity mechanism .This mechanism has functions of pulverization , ex-trusion and resistivity measurement .A method that combined temperature compensation and constant circuit environment temperature was adopted to avoid the measuring accuracy influenced by temperature variation .The STC89 C52 single-chip microcomputer were used for the realization of the data acquisition , calculation , display and the control of the crop dryer .