Electric-field exposure of persons using video display units.
Electric fields produced by a selection of video display units have been measured over a frequency range from DC to 1 MHz. The magnitude and the time variation of the electric fields were both recorded by means of a single broadband capacitive sensor located on the surface of a simple simulation of the human body. The electric field at a given location was found to be the sum of three discrete components, each having a different spatial and time variation. These components are produced by, respectively, the charged CRT screen, the flyback transformer, and the low-voltage circuitry. For the units tested, operator exposures are substantially below the limits of existing workplace guidelines.
D003626:Data Display; D004574:Electromagnetic Fields; D055590:Electromagnetic Phenomena; D005260:Female; D006801:Humans; D008297:Male; D008452:Maximum Allowable Concentration; D009784:Occupational Diseases / Q000517:prevention & control*; D011834:Radiation Monitoring