Sound meter

Sound meter

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Credit: ANDREW LAMBERT PHOTOGRAPHY/SCIENCE PHOTO LIBRARY

Caption: Sound meter. Instrument used to measure sound levels in decibels (dBs). The decibel scale is logarithmic, with a 3dB increase equating to a doubling in power and a 10dB increase equating to a doubling in perceived volume. 0dB is the threshold of hearing whilst 130dB is the threshold of pain.

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Keywords: analogue, decibel meter, decibels, device, equipment, instrument, measuring, physical, physics, science, scientific, sound meter, technological, technology

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