CAJ | 학술논문

日照时数测量是太阳辐射时间分布测量的重要组成部分，气象上通常采用日照计观测日照时数。目前常用日照计在光学系统的杂散光消除、传感器辐射响应与设计封装这两个问题上存在缺陷。针对这两个问题，在此提出了一种新型日照计的设计。通过透镜和孔径光阑的配合使用来优化光筒设计，从而降低杂散光影响；通过使用基于二氧化钒薄膜的微测辐射热计来有效覆盖更宽的光谱范围，解决了传感器的辐射响应问题，同时利用单片机设计阈值判断与计时电路。该设计有效提高了日照计的测量精度，为未来日照计的发展提供了一种新思路。
일조시수측량시태양복사시간분포측량적중요조성부분，기상상통상채용일조계관측일조시수。목전상용일조계재광학계통적잡산광소제、전감기복사향응여설계봉장저량개문제상존재결함。침대저량개문제，재차제출료일충신형일조계적설계。통과투경화공경광란적배합사용래우화광통설계，종이강저잡산광영향；통과사용기우이양화범박막적미측복사열계래유효복개경관적광보범위，해결료전감기적복사향응문제，동시이용단편궤설계역치판단여계시전로。해설계유효제고료일조계적측량정도，위미래일조계적발전제공료일충신사로。
The sunshine hour measurement is an important part of solar radiation time distribution measurement,and the sunshine recorder is usually used in sunshine hour observation. The stray light elimination of optical system,as well as the radia-tion response and packaging of sensor are the two defects of modern sunshine recorders. For these two defects,the design of a new sunshine recorder is presented in this paper,in which a lens and aperture stop are adopted to optimize the light tube de-sign,and then reduce the effect of stay light. The micro-bolometer based on vanadium dioxide thin films is used to effectively cover a wider spectral range,and improve the radiation response of the sensor. SCM is also used in thedesign of threshold judg-ment and timing circuit. In this way,the measurement accuracy of sunshine recorder was effectively improved. It provides a new idea for the future development of sunshine recorder.