Labels:anechoic chamber | shelf | sky OCR: Standard 500-L Louvers Once louver size is below FA is reduced drasti ically as proportion of the ovel louver area The frame then constitutes greater percenta de the overall area The converse also true with louver FA increasing as the louver increases size and the frame becomes lesser percentage of the overall Jouver area The chart on the following slide will further explain. All manufacturers publish FA data charts for unit sizes major concern pe sure consult the respective manufa icturers data chart. But Free Area by itself should NEVER be design criteria The designer must also consider Pressure Drop drastically over concerh
