ELECTROMAGNETIC RADIATION EMISSION FROM COMPUTER MONITORS

Authors

  • DS NYITAMEN Electrical/Electronic Engineering Department, NDA, Kaduna

Abstract

The intensity of the electromagnetic fields emitted from video display unit (VDU) of computers in various directions was investigated. Measurements of the radiation emissions from the monitors were made and the data analysed. The results were then compared with the recommended exposure limits. On the average both components (magnetic and electric) of electromagnetic radiation, 50 cm away from the monitor do not exceed permissible values significantly. The emission levels from the monitors were between 1.5 – 3.2mG and 0 – 4V/m measured values for magnetic and electric fields respectively compared to the Swedish Standards Institution (SIS) values of 2mG and 10V/m at 50 cm from the centre of the screen. However, it was observed that clustered computer monitors with poor spacing arrangement (less than 1 meter apart in any direction) produced significant radiations even at 50 cm from the centre of the screen. Also, multiple electrical cable cords near the regular operator position were found to increase the measured radiation values

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Published

2008-12-01

How to Cite

DS NYITAMEN. (2008). ELECTROMAGNETIC RADIATION EMISSION FROM COMPUTER MONITORS. Academy Journal of Science and Engineering, 5(1), 80–85. Retrieved from https://ajse.academyjsekad.edu.ng/index.php/new-ajse/article/view/147

Issue

Vol. 5 No. 1 (2008): Academy Journal of Science and Engineering (AJSE)

Section

Articles

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