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ASTM F9635 w, G. n ?" [) t4 {4 X6 K
8.19.2.4 (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. A% R; V w8 y7 e& q/ r+ r6 l
least one whole cycle.
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EN71
" N H: }5 s* |$ P* X" m' V8.28.2.4.1
* P" W! b% W d. VIf 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. 1 F$ q( O$ x" t* i' L/ ]1 Q( Z
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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2 N' |+ U, M0 u+ b* L: O5 }Q: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])?! t9 `, H# ~0 E: l$ Q. d+ I, {
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