Design of optic system for crop nitrogen non-destructive monitoring instrument

被引：0
|
作者：
Xu, Zhigang [1 ]
Zhu, Yan [1 ]
Jiao, Xuelei [1 ]
Cao, Weixing [1 ]
Liu, Xiaoying [1 ]
机构：
[1] Nanjing Agricultural University, Nanjing 210095, China
来源：
Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery | 2008年 / 39卷 / 03期
关键词：
Design - Monitoring - Nitrogen - Optical systems - Structural design;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The optic characters of canopy reflectance spectral and the optic principle of non-destructive nitrogen monitoring were analyzed, and then the optic parameters disturbing the monitoring precision of the optic system were put forward, which included the uniformity in image optic field, the wide object field with short distance of survey, the operation dithering and the change of distance of survey. The scheme of optic system frame design, the key optic organs choosing and its optic parameters matching were proposed subsequently. Finally, the causes and control methods of the optic system measurement error were analyzed and the sample product was designed and manufactured.
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页码：120 / 122
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