Norsonic Nor275, Пользовательская документация

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Maximum and minimum directivity indices in different directions
according to the requirements in ISO 3382-1 compared to the
tolerance limits. Maximum and minimum directivity indices in different directions
according to the requirements in ISO 140-3 and ISO 140-4 compared
to the tolerance limits.
Typical sound power level vs. frequency of the loudspeaker Nor276
when used with the pink noise source and equalizer included in the
power amplifier Nor280.
100 Hz
315 Hz
1 kHz
3,15 kHz
Sound power in different directions for Nor276. The measurement is
done in a horizontal plane through the centre of the loudspeaker. The
graph shows the respons for a sinusoidal signal at 100 Hz, 315 Hz, 1
kHz and 3,15 kHz.
315 Hz 1 kHz
3,15 kHz 100 Hz
9 Noise Excitation Systems