公开(公告)号：US5412219A

公开(公告)日：1995-05-02

申请号：US155605

申请日：1993-11-22

申请人： Emmett W. Chappelle ,  Craig S. T. Daughtry ,  James E. McMurtrey, III

发明人： Emmett W. Chappelle ,  Craig S. T. Daughtry ,  James E. McMurtrey, III

IPC分类号： G01N21/64

CPC分类号： G01N21/64 ,  G01N2021/1797 ,  G01N2021/6417

摘要： An improved method for detecting, measuring, and distinguishing crop residue, live vegetation, and mineral soil. By measuring fluorescence in multiple bands, live and dead vegetation are distinguished. The surface of the ground is illuminated with ultraviolet radiation, inducing fluorescence in certain molecules. The emitted fluorescent emission induced by the ultraviolet radiation is measured by means of a fluorescence detector, consisting of a photodetector or video camera and filters. The spectral content of the emitted fluorescent emission is characterized at each point sampled, and the proportion of the sampled area covered by residue or vegetation is calculated.

摘要翻译： 一种用于检测，测量和区分作物残留物，活植物和矿物土壤的改进方法。 通过测量多个频带的荧光，区分了活的和死的植被。 用紫外线照射地面，诱发某些分子的荧光。 通过由光电检测器或摄像机和滤波器组成的荧光检测器来测量由紫外线辐射引起的发射的荧光发射。 在每个采样点，表征发射的荧光发射的光谱含量，并计算由残留物或植被覆盖的采样面积的比例。