Research on Photoelectrical Digital Sunshine Duration Sensors Calibration System
With the development of automatic sunshine observation in meteorological departments in China,the pho-toelectric digital sunshine meter has gradually replaced the traditional dark cylinder sunshine meter and become the main equipment of sunshine observation at stations.In this paper,a design method of outdoor calibration system of photoelectric digital sunshine meter is presented,and the hardware construction and software design of outdoor cali-bration system are proposed according to the calibration method.The experiment shows that the system meets the re-quirement of calibration business,realizes the automation and batch calibration of photoelectric digital sunshine me-ter,and provides a strong guarantee for the accuracy and reliability of sunshine observation data in China.
photoelectrical digital sunshine duration sensorscalibrationcalibration system