总日射表热滞后效应的实验研究──实验装置和结果

EXPERIMENTAL STUDY ON THERMAL LAG EFFECT OF PYRANOMETERS -EXPERIMENTAL APPARATUS AND RESULTS

介绍了总日射表热滞后效应的测量装置、实验步骤和数据处理方法，并提出总日射表热稳定时间概念。采用微机控制的自动采集系统，测定了常用的六种总日射表的热稳定时间，其值都比铭牌上标明的时间常数长得多。

his paper presents the composite systems of experimental apparatus on the thermal lag effect of pyranometers and the experimental steps and the methods of data treatment.The concept of thermal stable time of pyranometers is introduced for thefirst time.The quality of measurement is highly improved and the labour intensity of measurement is significantly reduced by adoption of micro-computer to collect experimental data automatically. The thermal stable times of six types of pyranometer manufactured at home and abroad in common use at present have been measured respectively.It is shown that they are much longer than the time constants marked on the nameplate of the pyranometers.