EVALUATION OF THE INFLUENCE OF THE MAGNETIC FIELD ON HUMAN BY USE OF BIO-IMPEDANCE |
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| Stanislava Papezova,Vaclav Papez |
- Abstract:
- This paper describes a system, which enables quantitative monitoring and evaluation of the influence of a pulse magnetic field on a live organism by using of bioimpedance measurement. Electric impedance of tissue varies according to the amount of blood contained in a segment at a given instant. Because blood has greater conductivity than tissue, the presence of a slightly increased amount of blood decreases the impedance of the tissue. The magneto-therapeutic instrument uses a couple of Helmholtz coils as the applicator. The magnetic field strength is approximately 60 mT. The current of these coils is controlled by the pseudo random impulse signal by using of a power switch. The random exciting generator was designed as a 16-bits generator of a Galois code. The bioimpedance has been measured by four electrode method by using of RF narrow band vector bioimpedance meter on the forearm. During the magnetic field exposure the bioimpedance signal level increases above the normal and its level reaches the maximum after about 10 minutes. The maximum value is approximately 50 % higher than the normal level.
- Download:
- IMEKO-TC4-2008-093.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC4
- Event name:
- Exploring New Frontiers of Instrumentation and Methods for Electrical and Electronic Measurements
- Title:
- XVIth IMEKO TC4 International Symposium on Electrical Measurements and Instrumentation (together with 13th IMEKO TC4 Workshop on ADC Modelling and Testing)
- Place:
- Florence, ITALY
- Time:
- 22 September 2008 - 24 September 2008