深圳市訊能電子有限公司

深圳市訊能電子/聲級(jí)計(jì)|深圳市訊能電子/聲級(jí)計(jì)
聲級(jí)計(jì)2240
二、驗(yàn)收標(biāo)準(zhǔn):
IEC61672-1:2002 Class 1
IEC60651 Type 1(1979) with amendments 1 and 2
IEC60804 Type 1(2000)
ANSIS1.4-1983 Type S1
ANSIS1.43-1997
B&K聲級(jí)計(jì)2240
二、驗(yàn)收標(biāo)準(zhǔn):
IEC61672-1:2002 Class 1
IEC60651 Type 1(1979) with amendments 1 and 2
IEC60804 Type 1(2000)
ANSIS1.4-1983 Type S1
ANSIS1.43-1997 Type 1
2．1測(cè)量參數(shù):
可同時(shí)測(cè)出四個(gè)參數(shù)
LAF 瞬間聲壓值，頻率加權(quán)“A”
一、品名規(guī)格：聲級(jí)計(jì)2240
二、驗(yàn)收標(biāo)準(zhǔn):
IEC61672-1:2002 Class 1
IEC60651 Type 1(1979) with amendments 1 and 2
IEC60804 Type 1(2000)
ANSIS1.4-1983 Type S1
ANSIS1.
聲級(jí)計(jì)B&K2240
二、驗(yàn)收標(biāo)準(zhǔn):
IEC61672-1:2002 Class 1
IEC60651 Type 1(1979) with amendments 1 and 2
IEC60804 Type 1(2000)
ANSIS1.4-1983 Type S1
ANSIS1.43-1997 Type 1
2．1測(cè)量參數(shù):
可同時(shí)測(cè)出四個(gè)參數(shù)
LAF 瞬間聲壓值，頻率加權(quán)“A”