Functional testing and applicability of the videosystem of the tacheometer Topcon GPT-7003i.
Kralj, Janez · Repozitorij Univerze v Ljubljani (Univerze v Lgubljani) · 2009
In the graduation thesis we present a special example of the tacheometer – the imaging tacheometer. The thesis first provides a brief description of the historical development of videotacheometers and examples of these instruments. It deals with the operation of the Topcon GPT-7003i instrument that enables a display of visual field image on the instrument screen. Components, structure and operation of the instrument, as well as the characteristics of capture reality are presented. The thesis also presents the basic principles of electromagnetic wave motion, refraction of light, reflection of light in different substances and operation and principles of image sensors. Furthermore, it describes the algorithms, advantages of software and characteristics of the operation of instrument. Finally, it describes the execution of a practical test, substantiating the main characteristics of the instrument in question. Classical sighting with the telescope of the instrument and sighting only with the screen of the instrument is also tested. The results of the measurements of testing the edge extraction measurement method are presented in the final part of the thesis.