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ASTM F963
. a/ P. I( J7 b6 v. y) e, I8.19.2.4 (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 at7 f' s" D5 N P3 S
least one whole cycle. 0 L3 Z2 M- d9 j* }+ ]4 i* |
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EN713 s% S- X/ {; x0 ?+ @" p0 E e
8.28.2.4.1
8 l- A9 T+ H- i& g/ G+ V8 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. 0 s- o& K+ l, o: 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。/ R, _/ ^; f, f" R7 |% \9 r" L4 C
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5 F% v( E/ t; j b" ]9 `( wQ：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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发表于 2009-7-31 16:55
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