Open Access
表4
1/3倍频程中心频率处吸声系数误差表
| 中心频率/Hz | 误差绝对值最大值 | 误差绝对值最大值百分比/% | 平均值(×10-3) |
| 500 | 0.15 | 38.60 | 15.30 |
| 630 | 0.14 | 37.20 | 24.50 |
| 800 | 0.16 | 23.20 | 56.90 |
| 1 000 | 0.15 | 21.20 | 1.58 |
| 1 250 | 0.10 | 16.00 | 17.50 |
| 1 600 | 0.14 | 29.80 | -31.50 |
| 2 000 | 0.13 | 29.80 | -46.90 |
| 2 500 | 0.11 | 22.00 | -38.40 |
| 3 150 | 0.08 | 17.90 | -24.90 |
| 4 000 | 0.06 | 10.00 | -12.20 |
| 5 000 | 0.06 | 8.33 | -3.70 |
| 6 300 | 0.07 | 13.20 | -27.60 |
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