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MEASUREMENT
Principle
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CALCULATION
Principle
Miki Model
JCA Model
RESULTS
A-G-1 24kg/m
3
50mm
Large tube
Measurement
Calculation
Measurement and calculation
Small tube
Measurement
Calculation
Measurement and calculation
A-G-2 32kg/m
3
25mm
Large tube
Measurement
Calculation
Measurement and calculation
Small tube
Measurement
Calculation
Measurement and calculation
A-G-3 32kg/m
3
50mm
Large tube
Measurement
Calculation
Measurement and calculation
Small tube
Measurement
Calculation
Measurement and calculation
A-G-4 96kg/m
3
25mm
Large tube
Measurement
Calculation
Measurement and calculation
Small tube
Measurement
Calculation
Measurement and calculation
A-P-1 10kg/m
3
50mm
Large tube
Measurement
Calculation
Measurement and calculation
Small tube
Measurement
Calculation
Measurement and calculation
A-P-2 16kg/m
3
50mm
Large tube
Measurement
Calculation
Measurement and calculation
Small tube
Measurement
Calculation
Measurement and calculation
A-P-3 24kg/m
3
50mm
Large tube
Measurement
Calculation
Measurement and calculation
Small tube
Measurement
Calculation
Measurement and calculation
LINKS
JAPANESE
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計測条件
A-G-2
(密度 :
32 kg/m
3
, 厚み :
25 mm
, 細管)
概要
表面インピーダンス(実部・虚部)
および
吸音率
の計測結果、および理論計算値を併せて示す。
備考
------
空気層の厚み : 0 mm(剛壁上の配置)
表面インピーダンス
吸音率
空気層の厚み : 20 mm
表面インピーダンス
吸音率
空気層の厚み : 40 mm
表面インピーダンス
吸音率