نوع مقاله : مقاله پژوهشی
عنوان مقاله English
نویسنده English
We have seen the definition of electromagnetic waves in previous papers. Parts of the spectrum of these waves used in new surveying and geodetic equipment include:
1) Infrared radiation
2) Visible light
3) Microwave
All of these three are used in new tools to measure lengths and distances.