Usikalu, M.R. and Babarimisa, I O and Akinwumi, S. A. and Akinyemi, M. L. and Adagunodo, T. A. and Ayara, Williams A. (2018) Radiation from Visual Display Unit. In: 2nd International Conference on Science and Sustainable Development.
![[img]](http://eprints.covenantuniversity.edu.ng/style/images/fileicons/other.png) |
PDF
Download (789Kb) |
|
PDF
Download (789Kb) |
Abstract
The radiation from different types of Visual Display Units (VDU) (that is, Liquid Crystal Display (LCD) and Cathode Ray Tube (CRT)), projector and interactive screen were examined using a Cell Sensor Extremely Low Frequency (ELF) detection meter. The study revealed that ELF radiation in CRT VDUs is eight (8) times greater than in LCD VDUs. The mean ELF obtained from interactive screen at 30 cm was 1.6 mG and 1.9 mG at start-up and after 3 hours of use respectively with a mean value of 1.03 mG for a distance of 100 cm at start up. The mean ELF radiation from the projector screen at a distance of 10 cm is 0 mG, while that of interactive screen is 2.4 mG at the same distance. Thus, the study suggested that, projector and screen is better than interactive screen when making presentation considering the closeness of user to the interactive screen throughout the course of presentation.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Uncontrolled Keywords: | Radiation, Projector, Interactive screen, LCD, CRT |
| Subjects: | Q Science > Q Science (General) Q Science > QC Physics |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Physics |
| Depositing User: | Dr. Mojisola Usikalu |
| Date Deposited: | 24 Jul 2018 12:35 |
| Last Modified: | 30 Jul 2018 12:43 |
| URI: | http://eprints.covenantuniversity.edu.ng/id/eprint/11186 |
Actions (login required)
 |
View Item |
