Dissertation > Excellent graduate degree dissertation topics show

Array near infrared spectroscopy signal acquisition technology research

Author: HuangChangZuo
Tutor: ChenXingDan
School: Jinan University
Course: Optics
Keywords: Near Infrared Spectroscopy Fast data acquisition SNR C8051F MCU
CLC: TP274.2
Type: Master's thesis
Year: 2011
Downloads: 47
Quote: 0
Read: Download Dissertation

Abstract


Because near-infrared spectral region of the material information-rich , near-infrared spectroscopy is widely used in many fields . NIR NIR spectroscopy as an entity , in China started late in the development , performance and international level have a certain gap , the instrument localization imminent. Also, because the diode array technology development, application of this technology came into being near-infrared spectrometer , which has sampling speed , stable performance , high resolution, signal to noise ratio advantages, in the near infrared is widely applied in the field of . Because near-infrared spectrometer localization of the urgency and near- infrared diode array spectrometer superiority , this principle of using near infrared spectroscopy , near-infrared array designed data acquisition system. After comprehensive consideration , the design uses high-speed low -noise amplifier and 18 with analog-digital conversion chip design and MCU and CPLD as a data processing and control of master chip to form a complete data acquisition system, the data is processed by the microcontroller can fed via a USB port and serial PC software for further processing and display, and with CPLD simulation of the selected array detector operating timing . Proved by testing , the design of the sampling rate of 115.2kHz cases completed per second transfer 5 256 points near infrared wavelength spectra , in the wavelength range 900-1530nm wavelength points within the signal to noise ratio are all better than 4000: 1, the average SNR level of about 7000:1 or so. The near-infrared spectral data array system has a fast data acquisition and high signal to noise ratio , etc., can be successfully applied to the extraction of near-infrared spectroscopy signals for array NIR spectrometer provides an important practical application of reference .

Related Dissertations

  1. Study of Acoustical Signal Transmitter Which Based on Sigma-Delta Modulation,TN761
  2. Monitoring Leaf Nitrogen Status in Rice with Near Infrared Spectroscopy,S511
  3. Research and Implementation of Adaptive Modulation and Coding Algorithm Based on OFDM Baseband,TN911.22
  4. Experimental Study on the Ethylene/air Diffusion Flame Based on Near-infrared Emission Spectrometry Measurement,TK16
  5. Based on binary optical coupling lens array antenna research and,TN820.15
  6. SAR image can be matched study,TN957.52
  7. NMR logging sensor noise matching analysis and research,TP212
  8. Instrument-to-Instrument Calibration Transfer and Standardization of Spectra,O657.33
  9. Three-dimensional positioning accuracy of image quality on a number of issues affecting research,TP391.41
  10. DSP FPGA -based near-infrared detector key technology research,TN791
  11. Image intensifier noise characteristics of,TN144
  12. Research on the Method of Near-infrared Detection of E.coli,R378
  13. Study on Identification of Cashmere and Wool Using Near Infrared Spectroscopy,TS131
  14. Study on Predict the Carcass and Beef Quality of Kerchin Cattle,TS251.52
  15. Study on Rapidly Detecting the Quality of Milk by Near -Inrared Spectroscopy,TS251
  16. The Research of "Mechanism + Identification" Strategy in Short-term Highway Traffic Flow Based on Robust Statistics,U491.112
  17. The Research of the Methods of Detecting Pesticide Residues in Vegetable Based on NIR Technology,TP274
  18. Pilot-based OFDM system channel estimation algorithm,TN919.3
  19. Channel Parameter Estimation Algorithms for OFDM Systems,TN919.3
  20. Detection Method and Research for the Quality of Edible Oil Based on Near Infrared Spectroscopy,TN219
  21. Model Research on the Identification of Hyaluronic Acid, Heparin and Chondroitin Sulfate with Near-Infrared Spectroscopy,TQ460.7

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