Dissertation > Excellent graduate degree dissertation topics show

Research on High-Performance Signal Conditioning and Acquisition Circuit

Author: SongWei
Tutor: WangLiXin
School: Harbin Institute of Technology
Course: Power Electronics and Power Drives
Keywords: Data collection Signal Conditioning Calibration Data Compression
CLC: TP274.2
Type: Master's thesis
Year: 2009
Downloads: 201
Quote: 1
Read: Download Dissertation

Abstract


Data acquisition system is designed to capture the desired signal , mainly for test and measurement, and monitoring of scientific experiments and other occasions . With the development of China's space technology , for an important part of the field of aerospace test - data collection techniques are increasingly high requirements . In this paper, based on the existing collection system , through the trigger circuit , signal conditioning circuits, and data compression research and implementation, analysis of high-performance data acquisition system design, some of the key issues. Trigger circuit design, respectively, through the DA devices AD8522 high-resolution and high-speed AD and comparators AD9238 and FPGA devices to achieve a combined analog trigger circuit and pure digital trigger circuit , and both were tested , analyzed and compared , summed up the their advantages and disadvantages and application of occasions to improve the system trigger flexibility. PGA103 and a range of other devices used to achieve the input range is ± 1mV ~ ± 20V, amplifier frequency band is 0 ~ 100kHz, the output voltage range of ± 1V signal conditioning circuits , optical isolation circuit through inhibition of the digital control signal to analog circuit effects , by reducing the power supply noise filter module for interference . DA Dual compensated through a high-precision calibration source design , and based on a linear model implemented in the FPGA signal conditioning circuit for this calibration circuit , to obtain a better calibration results and improve the system accuracy. By using self-designed CAM as desired dictionary LZW algorithm , based on the state machine implemented on FPGA thinking lossless data compression algorithm simplifies the process of increasing the data transfer speed.

Related Dissertations

  1. Research on Power Plants Data Acquisition System Based on MODBUS,TM621
  2. Energy-saving and new energy vehicle data acquisition and plateau fit technology to explore,U469.7
  3. CAN bus technology in the meteorological monitoring System Research and Implementation,P409
  4. Automatic Calibration System Voltage Monitor,TM933.2
  5. The Research and Implement on Camera Calibration Technology Based on Trifocal Tensor,TP391.41
  6. The Modeling and Simulation of Large-scale Water Conservation Construction Equipment Based on Multi-domain Physical Field Theory,TV53
  7. TN type liquid crystal drive and transmission measurement circuit design,TN873.93
  8. PDA-based Maintenance Information System Design and Implementation,TP311.52
  9. Infrared focal plane arrays based on USB2.0 data acquisition system,TP274.2
  10. Large composite structures falling weight impact test technique,TB302
  11. Hull section robotic welding path planning and offline programming,TP242
  12. Based on phase sensitive demodulation capacitive coupling resistance tomography study,TP391.41
  13. FPGA-based high-speed data acquisition system design,TP274.2
  14. Long focal length collimator vacuum aberration measuring and calibration methods,TH74
  15. Distribution network based on GPRS Remote Data Acquisition System,TM76
  16. Camera calibration Related Issues,TP391.41
  17. Small Unmanned Helicopter Modeling and Control System Design,V249.1
  18. Tarim River Ecological Monitoring and Management Information System Design and Implementation,TP311.52
  19. Data Acquisition System Based on PCI Bus Research and Design,TP274.2
  20. PTC starter integrated parameter test methods Research and Implementation,TH87
  21. Wideband radar data acquisition and real-time image processing technology research,TN958

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