光电式数字日照计安装不规范引起的测量误差分析

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摘要文章从光电式数字日照计测量日照时数的原理出发,分析了其安装不水平及未对准南北线、纬度所产生的太阳直接辐照度测量误差。日照时数是以直接辐照度≥120 W/m²作为有日照标准,因此,因安装不规范产生的测量误差仅在直接辐照度接近120 W/m²时会影响日照时数的计算。

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	赵振东

关键词 ：光电式, 日照, 测量, 误差分析

Abstract：Based on the principle of measuring sunshine duration by photoelectric digital sunshine recorder,the error of solar direct irradiation caused by un-horizontal installation,and misaligned of south-north line and latitude is analyzed in this paper.The direct irradiance ≥120 W/m^-2 is used as the criterion for sunshine duration.Therefore,the error caused by improper installation affects the calculation of sunshine duration only when the direct irradiance is close to 120 W/m^-2.

Key words： photoelectric sunshine duration measurement error analysis

收稿日期: 2019-11-13

ZTFLH:

P412.14

作者简介: 赵振东(1963),男,大学,高级讲师.主要从事地面气象观测研究工作.

引用本文:

赵振东. 光电式数字日照计安装不规范引起的测量误差分析[J]. 气象水文海洋仪器, 2021, 38(1): 54-55. Zhao Zhendong. Analysis of measurement error caused by improper installation of photoelectric digital sunshine recorder. Meteorological Hydrological and Marine Instrument, 2021, 38(1): 54-55.

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http://www.qxswhy.com/CN/ 或 http://www.qxswhy.com/CN/Y2021/V38/I1/54