IEC Acoustic Standard IEC 61400-11
IEC Acoustic Standard IEC 61400-11
IEC Acoustic Standard IEC 61400-11
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7 Measurements and Measurement Positions<br />
<strong>Acoustic</strong> measurement requirements<br />
Calibration of measurement chain at least before and after<br />
or if microphone is moved<br />
Record data for later analysis<br />
Omit data with interruptions in the background (cars, plane)<br />
Collect turbine and background data under similar conditions<br />
Cover as broad a range of wind speeds<br />
NATIONAL RENEWABLE ENERGY LABORATORY<br />
15
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