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bian pin kong diao shi wai ji sheng pin zhi ce shi fen xi
Author(s): 
Pages: 66-67
Year: Issue:  7
Journal: Household Appliance Technology

Abstract:  1引言 在目前国家标准GB/T 7725-2004、机械行业标准JB/T 4330-1999对空调器噪声测试要求中,尚未对空调声品质做出要求,只是限定了A声压级作为空调产品噪声的评价指标,A声压级是根据对人进行纯音响度反应实验得出的,而实际噪声往往是频率成分复杂的复合音,各频率成分之间存在相互掩蔽效应,以及人们对不同强度的声音主观感觉的频响特性不同.
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