容栅技术的电子树皮测量仪的设计与精度分析  

Design of the Electronic Tree Bark Measuring Instrument Based on Capacitive Grid Technology and Analysis on Accuracy

作　　者：蔡维[1] 史留勇[1] 张燕[1] 李朋伟[1] 朱永超[1] 

机构地区：[1]海南大学机电工程学院,海南海口570228

出　　处：《自动化仪表》2014年第9期87-90,94,共5页Process Automation Instrumentation

基　　金：国家级大学生创新训练计划基金资助项目(编号:201210589012);海南省自然科学基金资助项目(编号:513137);海南大学科研启动金资助项目(编号:kyqd1313)

摘　　要：树皮厚度能够预测病虫危害、林木生长和遗传变异,是一个极其重要的参数。在对树皮厚度的自动测量技术进行研究的基础上,设计了一套＂容栅式＂树皮厚度测量仪。通过对马占相思、非洲楝、面包树的树皮厚度测量试验,得到相应的标准偏差、变异系数,且效率提高了17~19倍。研究结果表明,该电子树皮测量仪具有精密度高、稳定性好、效率高的特点,其将在我国生态仪器中树皮厚度测量领域起着开拓作用。Pest damage,forest growth and genetic variation can be predicted by measuring the thickness of tree bark,so the thickness of tree bark is extremely important parameter. The automatic thickness measuring technology for tree bark is researched,and the capacitive grid type tree bark thickness measuring instrument is designed. Through the thickness measuring tests for Acacia Mangium,African neem and breadfruit,the standard deviations and the variation coefficient are obtained,and the efficiency increases by 17 ~ 19 times. The result of research shows that the electronic bark thickness measuring instrument features high accuracy,good stability,and high efficiency. This plays the role of pioneer in tree bark thickness measurement area for ecological instrument in our country.

关 键 词：容栅技术 树皮厚度 测量精度 生态仪器 传感器 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]