Assessment of non-sinusoidal, pulsed, or intermittent exposure to low frequency electric and magnetic fields.
The correct assessment of non-sinusoidal, pulsed, or intermittent exposure to low frequency electric and magnetic fields already is a key issue in the occupational environment while becoming more and more important in the domain of the general public. The method presented provides a simple and safe solution for the assessment of arbitrary field types--including sinusoidal and continuous-wave signals--with frequencies up to several 100 kHz and has already proven its practicability and usefulness for more than 5 years. The concept is based on fundamental laws of physics and electrostimulation and well-established physiological data. It allows for a seamless and easy integration in any standard or guideline dealing with human safety in electric, magnetic, and electromagnetic fields. A very simple-to-use graphical version allows an easy and fast assessment of the exposure to non-sinusoidal, pulsed, or intermittent low-frequency magnetic fields without introducing a large overestimation of the exposure situation. A computer-based version makes a much more detailed signal analysis possible and can provide useful information for exposure reduction using modifications of the magnetic field's time parameters (e.g., rise/fall times).
Heinrich
Hannah
H
SEMFIRA, Thurner Str 82, Hausen, Germany. hannah.heinrich@semfira.org
D001822:Body Burden; D004560:Electricity; D004574:Electromagnetic Fields; D004781:Environmental Exposure / Q000032:analysis* / Q000592:standards; D006801:Humans; D008954:Models, Biological; D017410:Practice Guidelines as Topic; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000379:methods* / Q000592:standards; D011835:Radiation Protection / Q000379:methods* / Q000592:standards; D012062:Relative Biological Effectiveness; D014915:Whole-Body Counting / Q000379:methods* / Q000592:standards