MAE - McIntosh Applied Engineering, LLC

MAE111 Wind Generator

The MAE111 is the bigger brother to the MAE110 wind generator. The MAE111 is primarily designed
for lab testing of microphone wind noise. It measures 36 inches long by 21 inches wide and 18 inches
tall and weighs approximately 120 lbs. It generates a fast air flow that can be continuously varied
from 0 to 25 MPH through a digital control frequency drive. The digital drive allows for remote
speed control operation from a RS232 connection and 100% repeatable wind speed settings that cannot
be achieved with an analog speed controller. The wind exits from a 7 inch by 7 inch rectangular port
and forms a "jet" that stays together several feet from the exit.

One of the keys to wind noise testing is having a wind source that does not produce an acoustic noise
that competes with the wind noise seen by the microphone. To accomplish this, it is critical for the
wind noise flow to be as quite as possible. Home fans have strong tonal noise components associated
with the blade-pass frequency and are not suitable for wind noise testing.

Like the MAE110, the MAE111 uses a low noise blower combined with an optimized integrated silencer
and full vibration control treatment on the interior to generate a high wind speed with as little
acoustic noise as possible in a device of this size.


Dimensions: 36 inches long, 21 inches wide and 18 inches tall.
Power: 110V 60/50Hz AC. @ <0.5 Amp
Speed set by a continuously digital frequency drive.

MAE111 User Manual

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