摘要:通過(guò)對(duì)西瓜的力學(xué)和物理特性的分析,設(shè)計(jì)一套以凌陽(yáng)十六位單片機(jī)為控制核心,以MEMS(微機(jī)電系統(tǒng))加速度傳感器為檢測(cè)工具,以FFT(快速傅里葉變換)為信號(hào)分析和計(jì)算方法的西瓜成熟度快速檢測(cè)裝置.檢測(cè)過(guò)程中,利用對(duì)西瓜的敲擊產(chǎn)生的振動(dòng)頻率響應(yīng),來(lái)準(zhǔn)確判斷西瓜的成熟程度.檢測(cè)結(jié)果將顯示在液晶顯示器上,包括振動(dòng)波形,振動(dòng)頻率和成熟度指數(shù),并且進(jìn)行成熟度等級(jí)分類.關(guān)鍵詞:MEMS;單片機(jī);西瓜成熟度
標(biāo)簽:
MEMS
單片機(jī)
無(wú)損檢測(cè)
上傳時(shí)間:
2013-10-14
上傳用戶:urgdil
The field of microelectromechanical systems (MEMS), particularly micromachinedmechanical transducers, has been expanding over recent years, and the productioncosts of these devices continue to fall. Using materials, fabrication processes, anddesign tools originally developed for the microelectronic circuits industry, newtypes of microengineered device are evolving all the time—many offering numerousadvantages over their traditional counterparts. The electrical properties of siliconhave been well understood for many years, but it is the mechanical properties thathave been exploited in many examples of MEMS. This book may seem slightlyunusual in that it has four editors. However, since we all work together in this fieldwithin the School of Electronics and Computer Science at the University of Southampton,it seemed natural to work together on a project like this. MEMS are nowappearing as part of the syllabus for both undergraduate and postgraduate coursesat many universities, and we hope that this book will complement the teaching thatis taking place in this area.
標(biāo)簽:
MEMS
教材
上傳時(shí)間:
2013-10-16
上傳用戶:朗朗乾坤