摘要
光照度传感器对于检测作物的光合作用有着重要的意义。运用光学滤光片对太阳光进行滤波,用硅光电池接收滤波后的光辐射,可获得能监测作物光合作用的光照强度传感器。该传感器与单片机、A/D转换电路、max1487芯片等相结合,研制全数字且支持RS-485总线协议的智能光照强度传感器。实验证明:设计方案合理,精度满足农业调控系统要求。
The photosynthesis of crop plays an important part in measuring crop growth. An intelligent light in-
tensity sensor is designed by using silicon light cell with a filtering light film and single chip processor,RS-485
bus interface. The experiment shows that the scheme is reasonabl and the precision satisfies the demand on agri-
cultural environments.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2003年第z2期298-299,共2页
Chinese Journal of Scientific Instrument
关键词
光谱特性
光照强度
检测
RS-485
智能传感器
Spectral characteristic
Light intensity
Measurement
RS-485
Intelligent sensor
