日照计

用感光迹线检查暗筒式日照计构造和安装误差

Method for Inspecting Errors in Structure and Installment of Dark-Tube Sunshine Recorder by Sunlight Line

日照计测量误差探讨

Approach Error of Sunshine Recorder

暗筒式日照计记录比它偏少5%左右，主要差在日出、日落时段，基本满足业务使用。

The record of Jordan is 5 % less than that of Campbell Stokes and most of this error appear at sunrise or sunset . In the main , Jordan is suitable for routine observations .

并从几何、成像原理加以论证，证明了利用感光迹线检查暗筒式日照计方位、水平、纬度安装正确与否，隔光板构造是否精确是可行的。

It is feasible to inspect the azimuth , level and latitude of the dark-tube sunshine recorder , as well as to inspect whether the installation is appropriate and the structure of the light screen is reasonable by using the sunlight-path method .