摘要
利用AT89C51单片机为控制核心,设计一种实用的噪声报警装置。用微型咪头和集成电路等器件对噪声进行采集与放大,经单片机分析处理后可由显示器显示噪声的大小,并用音响电路及时对大噪声进行报警。该系统灵敏度高,可靠性好,是一种实用的环境监测设备。
This paper uses microcontroller AT89C51 as the control core, and designs a practical noise annunciator. Noise is analyzed by a microcontroller and displayed after being sampled and amplified by the microphone and ICs. Then the audio circuit alarms as soon as the strong noise is detected. The system has excellent sensitivity and reliability. So it is used as practical environment detector.
出处
《噪声与振动控制》
CSCD
北大核心
2007年第3期141-144,共4页
Noise and Vibration Control
