Dissertation > Excellent graduate degree dissertation topics show

The Development of Methane Detection System Based on Infrared Absorption

Author: ZuoMing
Tutor: WangXiaoLan
School: Lanzhou University of Technology
Course: Control Theory and Control Engineering
Keywords: Infrared Absorption Gas Detection DSP Signal Process
CLC: TP274
Type: Master's thesis
Year: 2011
Downloads: 140
Quote: 0
Read: Download Dissertation

Abstract


Recent years, with Chinese rapid development and increasing coal production, security incidents caused by excessive Gas concentration have occurred sometimes in the production. The effective way to prevent such accidents is to detect mine Gas concentration accurately and timely. Infrared absorption Gas detection system is characteristic of high sensitivity, short response time and hard poisoning, therefore, its study has practical significance.In this thesis methane is detected, which is the main component of Gas. By the analysis of selective absorption of infrared gas, the absorption line of methane gas is determined and the theoretical basis of gas absorption measurement is obtained. DSP chip is chose as a control, because of the high-speed data processing performance. The system can realize the sample of weak Gas signal and the design of corresponding digital filter, in order to achieve a precise measurement of methane concentration.System development including hardware and software aspects:on the hardware side, light source, the gas chamber and detector provided by the system are selected, meanwhile, reasonable source driver circuit, amplification filter circuit, weak signal conditioning circuits, analog-digital conversion circuit and DSP control circuit are designed; on the software side, system initialization, temperature acquisition and measurement, signal sampling, digital filtering and other aspects of software design are completed.Finally, the relevant system experiments are completed and error analysis of experimental data is done. The result shows that the infrared absorption gas detection system achieved the expected objective, with a certain degree of accuracy and stability.

Related Dissertations

  1. Design of Electronicalcontrol System for Electronic Jacquard Knitting Machine,TS183
  2. Research on the Integrated Grating Subdividing Digital Display Device Based on DSP,TH822
  3. Study on Two Dimensional of Auto-Collimator Based on DSP,TH741.14
  4. Study on the Control System for Automatic Aiming of HWIL Pitching Mechanism,TJ303
  5. Research on Synchronous Motor Excitation Control System,TM341
  6. The AES Algorithm and Its Implementation in DSP,TN918.1
  7. The Design of a DSP-Based Robot Speech Command Recgnition System,TN912.34
  8. Research on Signal Receiving System of Phase Laser Range Finder,TN249
  9. Study on Implementation Technology of Channel Estimation in OFDM System Based on DSP,TN919.3
  10. Optimizing and Realising Research on Vedio Compression in TV Guidance System,TN919.81
  11. Voice Signal De-noise Base on Wavelet and Arithmetic Implement with DSP,TN912.3
  12. Research on Image Compression and Implementation Using TMS320C6713 Based on SPIHT Algorithm,TP391.41
  13. A Study on the Technology of the Infrared Image Matching,TP391.41
  14. Development of 3-Dimensional Scanning Probe Data Acquisition System Based on DSP,TP274.2
  15. Methane Concentration Detecting Instrument Based on Infrared Absorption Theory,TP216
  16. The Design and Implementation of the Control System for PMSM Based on DSP,TM341
  17. Research on the Technology of Flammable Gas Detection and Alarm,TP212
  18. Experimental Study on Infrared Spectra of Nano-MgO,TB383.1
  19. Forecast of Gas and the Realization of the Early Warning Devices under the Mine,TD712
  20. Research of Speed-Sensorless Vector Control System of Coal Mine Hoister Based on MRAS,TP273
  21. Design and Implementation on Signal Processing Algorithm for Power Quality Monitoring System,TN911.7

CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Data processing, data processing system
© 2012 www.DissertationTopic.Net  Mobile