GStar-Ⅲ便携式叶面积观测仪的设计  

Design of GStar-Ⅲ Portable Leaf Area Measurement Instrument

作　　者：乔长城[1] 刘霜[2] 张广周[3] 陈海波[3] 王一[1] 朱东红[1] 

机构地区：[1]中国电子科技集团公司第二十七研究所,郑州450047 [2]河南牧业经济学院,郑州450047 [3]河南省气象科学研究所,郑州450003

出　　处：《气象与环境科学》2013年第2期83-86,共4页Meteorological and Environmental Sciences

基　　金：公益性行业(气象)科研专项(GYHY201106042)资助

摘　　要：针对传统叶面参数手工测量方法效率低、工作量大的缺点,设计了以ARM嵌入式系统为核心,利用CIS扫描技术实现的数字式叶面测量仪。实验结果表明,该仪器测量速度快、效率高、操作方便,具有良好的实用价值。使用该仪器时,叶片未被展平,长度测量码盘打滑,叶片未全部深入测量部件内,测量时拉动叶子速度太快等,均可造成测量误差。For the weakness of low efficiency,heavy workload of the traditional manual measurement of leaf area,a digital leaf area measuring instrument based on the ARM embedded system,using Contact Image Sensor（CIS） scan technology is realized.The experimental results show that the instrument has high measuring speed,high efficiency,convenient operation,and has good practical value.When the instrument is in use,the leaf is not flat,length measuring encoder is slipping,leaf is not all in the measurement component,the dragging velocity is too fast as measuring the leave,which can be produced measurement error.

关 键 词：叶面仪 ARM 接触式图像传感器 测量原理 误差原因 

分 类 号：TP216.1[自动化与计算机技术—检测技术与自动化装置]