An approach to analysis of confounding and accumulative effect between sound and EM waves for electrified room environment

摘要

Recently, according to widely used IT equipments (abbr. ITE) such as portable telephone, cordless telephone and personal computer, some environmental problems in a room caused by confounding and accumulative effect between sound and EM waves begin to happen gradually. Hence, a new method evaluating the correlation quantitatively by use of lower and higher order correlation information is proposed. Then, sound and EM waves are treated on energy scales to make use of universality and additive principle of energy. Finally, the proposed method is experimentally confirmed by applying it to the sound and the EM wave leaked from VDT under playing a game.