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taijun_2008木蟲 (著名寫手)
Alchemist
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[交流]
請(qǐng)教聲音測(cè)量的兩個(gè)問(wèn)題
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我們要測(cè)量的聲壓級(jí)參數(shù)是LpA,1s,但使用聲壓表并沒有完全相同的參數(shù),請(qǐng)問(wèn)這個(gè)聲壓級(jí)有其他的表示方法嗎?或者,這個(gè)參數(shù)是不能直接測(cè)量,而需要用別的參數(shù)計(jì)算的?(有如下一段話:As an alternative to SEL, LAeq can be measured and the total measurement time t registered. The single-event emission sound pressure level can then be calculated from SEL = LAeq + 10 lg(t). The highest value recorded (LpA and LpC peak) at any of the microphone positions is the measurement result. the result is the average of the SEL-levels and the highest of the peak levels. the result is the average of the SEL-levels and the highest of the peak levels. 求教這個(gè)SEL-level是什么意思?和LpA,1s是什么關(guān)系? 謝謝 |

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