Bioelectromagnetic effects measurements – SAR and induced current

Article type: Research Article

Authors: Dlugosz, Tomasz^;

Affiliations: Department of Telecommunications and Teleinformatics, Faculty of Electronics, Wroclaw University of Technology, Wroclaw, Poland

Note: [] Address for correspondence: Tomasz Dlugosz, Department of Telecommunications and Teleinformatics, Faculty of Electronics, Wroclaw University of Technology, ul. Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland. E-mail: Tomasz.Dlugosz@pwr.edu.pl

Abstract: The paper discusses several theoretical and practical aspects of the application of currents flowing through the body of a radiotelephone operator and Specific Absorption Rate (SAR). SAR is known as the physical quantity which is a perfect solution for biological experiments. Unfortunately, SAR cannot be measured directly. Contrary to SAR, which is limited to the penetration depth, a current induced in a point of a body is measurable in any other point of the body. The main objective of this paper is to show that the current induced in a human body when using a radiotelephone or mobile phone is significant and should be analyzed as widely as SAR is. Computer simulations of a human's hand with a radiotelephone were made. Experiments were also conducted. The results of the experiments show that induced current is also as important as SAR and it cannot be omitted in bioelectromagnetic experiments. In biomedical studies both parameters: induced current and SAR play a major role.

Keywords: Specific absorption rate, induced current, bioelectromagentics

DOI: 10.3233/BME-141242

Journal: Bio-Medical Materials and Engineering, vol. 25, no. 1, pp. 1-7, 2015