摘要
日照时数是地面气象台站观测的基本项目。根据国内外日照计发展现状,设计了一种新型的日照计一光热型电测日照计,该日照计利用热电偶原理,根据两热电偶的温度差来计算太阳直接辐射,从而可以得出日照时数。主要分析了光热型电测日照计的原理结构、金属丝中能量传导和日照计性能,并做了初步试验。结果显示,光热型电测日照计不仅结构简单,而且性能较为良好,随太阳辐射强度变化响应较快,无需人工操作,可以完全实现自动化操作,对日照时数的测量比较准确。
Sunshine duration is a basic item of the surface meteorological observation. A new sunshine recorder, photo-thermal type sunshine recorder is introduced. This sunshine recorder is designed based on the principle of thermocouple; the solar direct radiation can be calculated according to the temperature difference of two thermocouples, and the sunshine duration can be obtained. The principle and structure of the sunshine recorder are introduced, and the energy transmission in wire and performance of the sunshine recorder are discussed. The structure of the sunshine recorder is simple, the performance is good, and the response is quick, along with the variation of the solar radiation intensity without manual manipulation. The automatic operation can be completely achieved, and the measurement of sunshine duration is accurate.
出处
《大气与环境光学学报》
CAS
2013年第3期220-225,共6页
Journal of Atmospheric and Environmental Optics
基金
公益性行业(气象)科研专项(GYHY201106040)资助
关键词
日照计
日照时数
日照强度
辐射
sunshine recorder
sunshine duration
sunlight intensity
radiation
