Effective acoustic centre

From International Dictionary of Marine Aids to Navigation
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3-1-125

Effective acoustic centre (of a sound source)

The point from which the spherical waves as observed at remote points appear to diverge.


Reference: I.E.C. (modified)




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

Languages

English

charge current

Intensity

Illuminance

Energy

Contrast

Celsius (previously Centigrade)

Capacitance

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

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