Open AccessNew solar elevation angle measuring instrument
Author(s) -
Bowen Chen
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2014/1/012011
Subject(s) - elevation (ballistics) , measure (data warehouse) , elevation angle , simple (philosophy) , measuring instrument , remote sensing , optical instrument , optics , computer science , physics , geology , geometry , mathematics , azimuth , philosophy , epistemology , database , thermodynamics
This paper will introduce a new instrument to measure solar elevation angle. This instrument has advantages of simple structure, cheap price and convenient use, and can easily overcome the influence of ground inclination angle on the measurement, which other instruments measuring solar elevation angel fail to realize. It is portable, can quickly and accurately measure the solar elevation and can be used on uneven ground in the open. The theory of the instrument is simple. It is the application of the Newtonian mechanics, as well as geometry. This paper will introduce general structure and use method of the instrument, carry on brief principle analysis and use manual model of this instrument to measure solar elevation at different ground inclination angles within about one minute. And it is found that all the readings are basically the same. Finally, solar elevation of the afternoon is measured by the instrument model, and the sunset time is predicted. The prediction result is only 13 minutes later than theoretical time, which shows that the measurement is accurate.