Optical Transistor Automatic Sunshine Recorder Engineering Research

The sunshine is refers to the sun in place actual illumination hour, the World Meteorological Organization to the sunshine hours definition is:As soon as in assigns in the time interval the direct solar irradiance to reach or surpass 120W/m2 each partition times the sum total. The phototransistor automatic sunshine recorder is one kind can the automatic real-time observation and the record sunshine data new meteorological facility, it takes the photoelectric sensor direct measurement sunlight by the phototransistor the radiating capacity, and transforms it as the electrical signal, when the vertical incident solar rays yield of radiation surpasses 120W/m2, the sunshine threshold value closed circuit, the sunshine electrical signal completes the sunshine data after A/D conversion electric circuit data input gathering control system the sampling, processing and the record, and completes the sunshine data through the data communication system upload to the computer the memory and the management. This instrument has the movement stably, solid durable, may maintain the long time continuous working, the operation and the maintenance is convenient, characteristics and so on easy backup, to have overcome existing artificial and automatic sunshine recorder's many shortcomings, the adaptation country modernization meteorological observation service demand, has satisfied the meteorological observation data high accuracy and the redundant reliable request, and its production cost is relatively inexpensive, easy to popularize to the basic unit meteorological observatory station, this equipment uses, departments and so on agricultural, building and ecology inspection in the solar energy also similarly has the widespread application prospect, is one kind of very ideal new automatic sunshine recorder.