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ASTM F963
* q! B- Y& s2 g7 [2 v9 s8.19.2.4 (2) Measurements of Continuous Sounds—If the toy under test has a clearly defined operating cycle, measure the equivalent sound pressure level in each microphone position during at. p% K0 f" U. n* V @) t5 e, @( x
least one whole cycle. 4 X- A* ~$ B0 t4 u, D0 P5 [
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EN71
- U! a9 d, T: v& Y: A8.28.2.4.1% b O2 N, S3 P4 U! s8 x5 t+ {
If the toy has a clearly defined operating cycle, measure the time average (the equivalent continuous) sound pressure level in each microphone position during at least one whole cycle.
- f0 u9 V/ u; I d# t8 y" v$ _ G如果被测玩具有明显的运行周期,至少在一个完整周期内测得每个麦克风的按时平均(均等连续)声压水平。
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" h5 P" l: o3 T# L' SQ:一般的声音函数貌似无法得知,怎样求出等效声压级(L[sub]Aeq[/sub])?
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