为了实现基于四象限探测器的太阳自动跟踪,首先分析了四象限光电探测器工作原理,并说明了选择四 象限探测器的依据,介绍了使用四象限探测器进行太阳跟踪的装置,深入研究了太阳光斑几何位置与小孔光阑、 四象限探测器安装位置可能存在的偏差影响,对四象限探测器与I－V转换电路系统进行了一致性分析,评价了 一致性对跟踪精度的影响,最后介绍了跟踪时四象限探测器电压值存在偏差的原因和合理性。实验证明,基于 四象限探测器的跟踪装置适用于高精度太阳跟踪。

To realize the automatic sun-tracking based on four-quadrant detector, the working principle of four-quadrant detector is firstly analyzed and the reason of selecting four-quadrant detector is explained. The setup based on four-quadrant detector for sun-tracking is introduced, the possibility of deviation influence, such as geometry position of the sun spot, installation position between aperture iris and four-quadrant detector is deeply investigated, the consistency between four-quadrant detector and its I－V conversion circuit is analyed, and the influence of consistency on tracking precision is evaluated. The reason and rationality of deviation existence on four-quadrant detector voltage for sun-tracking are introduced. The experiment demonstrated that the designed device based on four-quadrant detector is suitable for high-precision sun-tracking.