PORTABLE, NEAR-INFRARED SPECTROPHOTOMETER FOR RAPID SOIL ANALYSIS

被引：0
|
作者：
SUDDUTH, KA [1 ]
HUMMEL, JW [1 ]
机构：
[1] USDA, CROP PROTECT RES UNIT, URBANA, IL 61801 USA
来源：
TRANSACTIONS OF THE ASAE | 1993年 / 36卷 / 01期
关键词：
SOIL ORGANIC MATTER; HERBICIDES; SPECTROPHOTOMETRY; VARIABLE RATE APPLICATION; OPTICS; SENSORS;
D O I：
暂无
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
A portable, near-infrared spectrophotometer was designed, fabricated, and performance tested Significant features included a circular variable filter monochromator, a fiber optic coupling for sensing of remote samples, and a software algorithm which corrected the instrument readings to a zero baseline. The instrument had a sensing range of 1650 nm to 2650 nm, an optical bandwidth of under 55 nm, and could acquire a spectrum every 200 ms. The intended use of this device was for rapid estimation of soil organic matter as a control input for variable rate herbicide application.
引用
收藏
页码：185 / 193
页数：9
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