智能化多功能声级计

介绍以 MCS 51为核心组成的声级计基本原理 ,详细介绍了计权网络、倍频程滤波、有效值变换、等电路以及系统软件设计。本仪器测量精度高、测量范围宽、抗干扰性好。

This paper introduces the principle of decibed-meter which takes MCS51 singlechip computer as key, gives a minute description for circuits of weighted network, multiplier frequency filter effective value altecenate data acquistion and system software design.Surveying accuracy of the meter is high, surveying range is wide and anti-distrur bance is efficient and reliable.