Any piece of a structure that vibrates, radiates acoustic energy. Sound power is the rate at which energy is radiated. The result is sound pressure. Sound pressure is what we hear, or measure with a microphone. M.A.C.E., Inc. can perform regular sound pressure ( level ) measurements, sound analysis and sound intensity measurements.

The picture to the left shows the grid of a loud speaker system and it's energy distribution at a special frequency.

Vector displays of the intensity data helps us to characterize sound fields and the direction of the intensity.

For acceptance- and verification tests and more important for human protection. Too high of a sound pressure may cause hearing damage.
 IMO's CODE ON NOISE

 Cabin and Hospitals 60 dB(A)
 Mess / Recreation Rooms 65 dB(A)
 Offices 65 dB(A)
 Radio Rooms 60 dB(A)
 Wheel House 65 dB(A)
 Bridge Wings 70 dB(A)
 Engine Room 110 dB(A)
 Control Room 75 dB(A)
 Work Shop 85 dB(A)
 Spaces not Specified 90 dB(A)

Sound intensity measurements

Sound level measurements

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