HANDHELD OPTICAL SENSOR FOR MEASURING THE NORMALIZED DIFFERENCE VEGETATIVE INDEX IN PLANTS

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专利权人:

发明人:

SOLIE JOHN B.,STONE MARVIN L.,RAUN WILLIAM R.

申请号：

US20100820669

公开号：

US2010324830(A1)

申请日:

2010.06.22

申请国别(地区):

美国

年份:

2010

代理人:

摘要：

A handheld sensor is disclosed. The sensor has a microcontroller, a current pulse control unit coupled to a light emitting diode (LED), and a photodiode. The microcontroller controls the current pulse control unit to provide a pulsed illumination of a target plant and the photodiode reads the magnitude of the reflectance from the target plant. The microcontroller accepts the reading from the photodiode and computes a normalized difference vegetative index (NDVI) based at least on the reading.

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中国工程科技知识中心

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