METHOD OF MONITORING ELECTROMAGNETIC ENVIRONMENT IN RESIDENTIAL AND PUBLIC BUILDINGS WITH SEPARATE EFFECT OF NON-IONIZING FIELD SOURCES Russian patent published in 2024 - IPC G01R29/08 

FIELD: measurement.

SUBSTANCE: invention is intended for measurement and evaluation of levels of electric, magnetic and electromagnetic fields generated in premises of residential and public buildings by various radiating sources of non-ionizing field, and can be used to determine the time spent by people who are not professionally associated with the operation and maintenance of EMF sources with a separate effect of its components in the frequency range extended to 3 THz. Single measurement of electric and magnetic field strengths, energy flow density, heat flux density from radiating sources at distance of 0.1 m from the centre of each external surface of the source made of metal or at distance of 0.1 m from the increased heating zone on each external surface of each source coated with dielectric materials according to the results of thermography. Constant electric field strength, electric and magnetic field strengths of 50 Hz, electric field strengths in range of 30 kHz – 300 MHz are measured, energy flow density in range of 300 MHz – 300 GHz and heat flow density in range of 300 GHz – 3 THz. Permissible time of staying at measurement points per day is determined for each external surface. Least one is selected from the obtained values of the allowable residence time. Measured values of EMF components corresponding to the least allowable value of residence time are used to form a spatial pattern of EMF distribution in premises of residential and public buildings. State of the electromagnetic environment is judged from the obtained volumetric dot pattern of the hazard of the electromagnetic environment.

EFFECT: wider field of application, high accuracy of monitoring the electromagnetic environment in residential and public buildings and enabling determination of permissible time of stay in conditions of separate influence of EMF components in frequency range extended to 3 THz for people who are not involved in the operation and maintenance of non-ionizing electromagnetic field sources.

1 cl, 1 dwg