摘要
针对现有植物茎秆直径测量时对被测部位施加的预紧力会影响植物的正常生长这一问题,提出一种利用光敏电阻对植物茎秆直径进行无损测量的设计方案,并通过试验验证了该方案的可行性;试验结果表明:在强光近距离试验条件下光敏电阻特性较好,在有效范围8.55mm内线性特性显著,此时其灵敏度达到73.38Ω/mm。
In the existing plant stem diameter measurement,the pretightening force applied on the measured position will affect the normal growth of plants.To solve this problem,in this paper a design used photosensitive resistance to perform non-destructive measurement of plant stem diameter is proposed,and the feasibility of the scheme is verified by experiment.The results show that：under the test condition of high-light in close,photosensitive resistance characteristic is better.The valid range of 8.55 mm linear characteristic is significantly,and the sensitivity reached 73.38Ω/mm.
出处
《中国农机化学报》
2016年第5期206-208,218,共4页
Journal of Chinese Agricultural Mechanization
基金
河南省教育厅自然科学研究项目(14A416002)
洛阳市科技攻关计划项目(1101032A)
关键词
直径无损测量
光敏电阻
茎秆直径
nondestructive measurement
photosensitive resistance
stem diameter
