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BS EN 62489-2:2011
Electroacoustics. Audio-frequency induction loop systems for assisted hearing. Methods of calculating and measuring the low-frequency magnetic field emissions from the loop for assessing conformity with guidelines on limits for human exposure
20 стр.
Заменен
Печатная копияПечатное издание
157.25 £ (включая НДС 20%)
Разработчик:
Зарубежные/BSI
ICS:
17.140.50 Electroacoustics. Including sound level meters / Электроакустика. Включая слуховые аппараты и шумомеры
Ключевые слова:
Acoustics, Acoustoelectric devices, Hearing aids, Audio-frequency induction-loop systems, Audiofrequencies, Aids for the disabled, Electronic equipment and components, Acoustic equipment, Magnetic fields, Electromagnetic fields, Low frequencies, Electromagnetic radiation, Emission, Measurement, Mathematical calculations, Physiological effects (human body)