Sound level meter

From International Dictionary of Marine Aids to Navigation
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3-1-160

Instrument including a microphone, an amplifier, an output meter and frequency weighting networks for the measurement of sound levels in a specified manner.


Reference: I.E.C. (modified)




Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)

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charge current

Intensity

Illuminance

Energy

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Celsius (previously Centigrade)

Capacitance

International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM

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