Dissertation > Excellent graduate degree dissertation topics show

On Dynamic Characteristics Compensation of Vibration Sensor

Author: ZuoTianLi
Tutor: HouXingMin；YangXueShan
School: China Seismological Bureau, Institute of Engineering Mechanics
Course: Disaster Prevention and Reduction Engineering and Protective Engineering
Keywords: Vibration sensor Dynamic characteristics compensation Digital filter DSP
CLC: P315.62
Type: Master's thesis
Year: 2006
Downloads: 182
Quote: 5
Read: Download Dissertation

Abstract


The dynamic characteristics of a sensor is the sensor’s responsecharacteristics with the input that changed according to the time. And infrequency domain it is normally describes by the frequency responsefunction. The frequency response range is always limited, especially isthe main factor of the frequency response of the system. When thedynamic characteristics of a sensor are not ideal, such as non-smoothnessof the amplitude-frequency characteristic, non-linearity of thephase-frequency characteristic, we can only get the distorted outputsignals via the test system so that the reliability of the measured signal isreduced. As a result, it is vital to improve the dynamic characteristics of asensor.This paper has researched the dynamic characteristics of model 941B inbase of the technology of the dynamic characteristics compensation. Andthe compensated system can expand its frequency band. Also, it includesexperimental research and simulation research.Firstly, the mathematical model of 941B’s dynamic characteristics isset. In the paper the dynamic compensation units improving the dynamiccharacteristics of the system are designed redisposing zero-pole pointsthrough analyzing influence of the location of zero-pole points on thedynamic characteristics.Secondly, in the paper a digital filter is designed to expand thefrequency band of the sensor according to the zero-pole pointscompensation method. With the simulinking in the MATLAB, this papercompares the compensated results of transient response of model 941B inthe different durations for single half sine wave, single square wave and asuperposing signal of three different frequency with those ofpre-compensating. And the compensated low frequency characteristicmeets the requires of the system.Finally, the digital filter is implemented in a DSP system and theresults are consistent with those in the MATLAB.

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 Data Acquisition and Processing Methods for Weapon Evaluation System,TJ06
  6. Research on Synchronous Motor Excitation Control System,TM341
  7. The AES Algorithm and Its Implementation in DSP,TN918.1
  8. The Design of a DSP-Based Robot Speech Command Recgnition System,TN912.34
  9. Research on Signal Receiving System of Phase Laser Range Finder,TN249
  10. Study on Implementation Technology of Channel Estimation in OFDM System Based on DSP,TN919.3
  11. Optimizing and Realising Research on Vedio Compression in TV Guidance System,TN919.81
  12. Voice Signal De-noise Base on Wavelet and Arithmetic Implement with DSP,TN912.3
  13. Research on Image Compression and Implementation Using TMS320C6713 Based on SPIHT Algorithm,TP391.41
  14. A Study on the Technology of the Infrared Image Matching,TP391.41
  15. Development of 3-Dimensional Scanning Probe Data Acquisition System Based on DSP,TP274.2
  16. Development of Vxibus Common Interface Module Based on DSP,TP274
  17. Research of Acoustic Signal Acquisition System Based on DSP,TP274.2
  18. Research of DSP-based Real-time Demodulation Method of One-frequency Laser Interferometer,TN911.3
  19. Design and Implementation of Earth Sensor for Micro-satellite,TP212
  20. Research on Distributed Fiber Optic Vibration Sensor,TP212.14
  21. Research on Orange Quality Detection Algorithm Based on DSP,TP391.41

CLC: > Astronomy,Earth Sciences > Geophysics > Earth ( rock circles ) physics ( geophysics ) > Seismology > Seismometry > Seismic observation instruments and equipment
© 2012 www.DissertationTopic.Net  Mobile