基于單片機(jī)的環(huán)境噪聲檢測儀畢業(yè)論文

1、本 科 畢 業(yè) 論 文基于單片機(jī)的環(huán)境噪聲檢測儀的設(shè)計(jì)所 在 學(xué) 院 機(jī)械與工程學(xué)院 專 業(yè) 名 稱 機(jī)械設(shè)計(jì)制造與自動(dòng)化 年 級 學(xué) 生 姓 名 、 學(xué) 號 指導(dǎo)教

2、師姓名、職稱 完 成 日 期 二〇一二年五月 AbstractIIABSTRACTWith the improvement of social development, harm of noise more emergent, real-time detection of environmental noise and get

3、people's attention. Environmental noise monitoring, which is improving the quality of life, strengthen environmental protection an important part .In the paper, the measurement principle and the system constitution a

4、re introduced in detail, including: the noise signal converting system, signal magnifying system, V/F converting system, data collection and indication system. This paper introduces the ways to convert the real-time moni

5、toring of the noise into acoustic frequency electrical signal by using microphone, operational amplifier and V/ F converter, which will act as Single Chip Micoyo’s input signal. Then the SCM will change it into a noise D