Design of Noise Measuring Instrument and Its Implementatio
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摘要: 针对煤矿井下噪声的危害，提出了一种基于STC单片机的井下噪声测量仪的设计方案，介绍了该测量仪的硬件和软件设计。测试结果表明，该测量仪实现了噪声声级的准确测量，测定误差小于±1.25%，达到了2级声级计指标要求。Abstract: In view of noise hazard of coal mine underground, the paper proposed a design scheme of noise measuring instrument based on STC single-chip microcomputer, and introduced hardware and software design of the instrument. The test results showed that the instrument realizes accurate measurement of noise level, measurement error is less than ±1.25%, which reaches 2-level of sound level meter.
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