光纤光导系统的太阳跟踪方法与输出光谱特性研究

针对光纤光导系统对于太阳跟踪精度、稳定度方面的双重严格要求,设计了光敏阵列太阳定位传感器,并结合太阳轨道解算,实现了太阳光聚焦点的精确定位,并利用塑料光纤进行了聚焦太阳光传输,获得了系统输出光功率谱密度分布曲线与相关光学定量数据.其中,针对光纤光导系统的对焦过程,研制了高位置分辨率的光敏阵列传感器采感知聚焦光斑确切位置...

Sun tracking method and optical properties of sunlight concentrating and transmitting system via fibers

According to the twin constraints of tracking precision and stabilization for the daylight concentrating and transmitting system via fibers,a sun positioning sensor using photodiodes matrix was developed which could pinpoint the focusing spot of sun.And the daylight concentrating and transmitting has been realized based on a hybrid sun tracking strategy which combines the orbit calculation and the sun positioning sensor.The sun tracking process has both accuracy and stability due to the hybrid control strategy embedded into the program.The quantitative data of the optical parameters and the spectrum of output beam were obtained.The results of experiment show that the spectrum of light transmitted by fibers is similar to that of nature light.This similarity also exists in chromaticity coordinate,color rendering index,dominant wavelength between light transmitted by fibers and nature light.So this technology can serves as the natural light source in some specific environment.