2023年全國(guó)碩士研究生考試考研英語(yǔ)一試題真題(含答案詳解+作文范文)_第1頁(yè)
已閱讀1頁(yè),還剩65頁(yè)未讀, 繼續(xù)免費(fèi)閱讀

下載本文檔

版權(quán)說(shuō)明:本文檔由用戶(hù)提供并上傳,收益歸屬內(nèi)容提供方,若內(nèi)容存在侵權(quán),請(qǐng)進(jìn)行舉報(bào)或認(rèn)領(lǐng)

文檔簡(jiǎn)介

1、華中科技大學(xué)碩士學(xué)位論文基于USB2.0的高速光電轉(zhuǎn)換和數(shù)據(jù)采集系統(tǒng)設(shè)計(jì)姓名:劉志江申請(qǐng)學(xué)位級(jí)別:碩士專(zhuān)業(yè):光學(xué)工程指導(dǎo)教師:楊克成2011-01-06華 中 科 技 大 學(xué) 碩 士 學(xué) 位 論 文 華 中 科 技 大 學(xué) 碩 士 學(xué) 位 論 文 IIAbstract During the science and technologies development in today’s world, to make the detect

2、ion and acquisition more precise in the application of high frequency photoelectric signal detection and storage, there are higher and higher demands for the performance of photoelectric detection and data acquisition sy

3、stem. Traditional photoelectric detection devices can not satisfy today`s scientific research and production because of its low response rate, low transmission rate and inconvenience to install. The emergence of high-spe

4、ed PIN photoelectric diode and USB2.0 technology can solve the problems above. This thesis describes a photoelectric signal detection and data acquisition system based on USB2.0. In order to accomplish the goal of indoor

5、 white light communication signal`s detection and data acquisition (low-frequency range 0-10MHz, high-frequency range 100MHz-1GHz). This thesis makes an overall design for the system to meet the performance index. After

6、the comparison of different core devices, we make a selection of photoelectric conversion device (S5903), A/D conversion chip (MAX115) and USB2.0 interface chip (CY7C68013). In practical software design and hardware desi

7、gn, this thesis realized the hardware design and simulation of high-speed photoelectric conversion and signals processing modules, and then analyzed the parameters of operational amplifier such as circuit noise character

8、istics and voltage conversion rate; completed the hardware design and circuit board production of USB2.0 high speed data acquisition module, at last finished the data acquisition module firmware programming and debugging

9、 by Keil C51 and GPIF Designer software. Combining the DDK software developer's kit and Microsoft Visual C++ 6.0 programming system, this thesis completed the drivers and user application programming work. To evaluat

10、e the performance of this system whether meets the index requirements, we do some practical measure and test. The result indicates that the system can accomplish the detection of 10MHz - 1.5GHz white light communication

11、signal, USB2.0 data acquisition module can be input 1-4 channels target signal range - 5V to + 5V. The 12-bits high-speed A/D conversion chip MAX115 has the highest sample rate of 400KSPS. In Experiment the transmission

12、rate can reach 1MB/s - 20 MB/s. This system can realize real time photoelectric conversion and data acquisition of high frequency instantaneous photoelectric signals, and it works steadily and reliably. So this thesis ac

13、hieves the goal of developing a high-speed photoelectric signal conversion and data acquisition system, which has new characters of high corresponding frequency, high transmission speed and high system integration. Key w

溫馨提示

  • 1. 本站所有資源如無(wú)特殊說(shuō)明,都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請(qǐng)下載最新的WinRAR軟件解壓。
  • 2. 本站的文檔不包含任何第三方提供的附件圖紙等,如果需要附件,請(qǐng)聯(lián)系上傳者。文件的所有權(quán)益歸上傳用戶(hù)所有。
  • 3. 本站RAR壓縮包中若帶圖紙,網(wǎng)頁(yè)內(nèi)容里面會(huì)有圖紙預(yù)覽,若沒(méi)有圖紙預(yù)覽就沒(méi)有圖紙。
  • 4. 未經(jīng)權(quán)益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
  • 5. 眾賞文庫(kù)僅提供信息存儲(chǔ)空間,僅對(duì)用戶(hù)上傳內(nèi)容的表現(xiàn)方式做保護(hù)處理,對(duì)用戶(hù)上傳分享的文檔內(nèi)容本身不做任何修改或編輯,并不能對(duì)任何下載內(nèi)容負(fù)責(zé)。
  • 6. 下載文件中如有侵權(quán)或不適當(dāng)內(nèi)容,請(qǐng)與我們聯(lián)系,我們立即糾正。
  • 7. 本站不保證下載資源的準(zhǔn)確性、安全性和完整性, 同時(shí)也不承擔(dān)用戶(hù)因使用這些下載資源對(duì)自己和他人造成任何形式的傷害或損失。

最新文檔

評(píng)論

0/150

提交評(píng)論