Dissertation > Excellent graduate degree dissertation topics show

The Shock Wave Test and Design of Light-triggering

Author: LiangJie
Tutor: ZhangZhiJie;LiuTianYe
School: University of North
Course: Measuring Technology and Instruments
Keywords: shock wave test light-triggering signal conditioning collection and storagetests embedded USB communication
CLC: TJ410.6
Type: Master's thesis
Year: 2014
Downloads: 3
Quote: 0
Read: Download Dissertation

Abstract


The shock wave test is an important technology method that researches and evaluates thewarhead’s the mutilate power. The design and application of protective cover, using for theweapon warhead’s design of damage performance, has important practical significance.Warhead explosion trial, with a high impact, high temperature, strong vibration, high ionizingfield, was also accompanied by smoke, sand and flying fragment picked up by shock wave atexplosion instant. The general instrument, on the condition of the explosion trials, was unableto complete this test’s task.On the basis of analyzing the present testing-technology about shock wave, this paperproposes a separate testing system for the shock wave combining with the photoelectricsynchronized device and storage testing technology. At the same time of acquiring shockwave overpressure curves, the shock wave’s time lag passing through each test nodes wasobtained by regarding the explosion optical signal as the system’s synchronous time base. Onthe premise of testing accurately the distance between the test nodes, the shock wave’saverage velocity in a node interval can be calculated by the time between nodes. Itimplemented the shock wave’s testing-function of velocity and pressure test at the same time.This testing system, based on theoretical analysis of the blast pressure and the explosionoptical signals, proposed the overall design of system and the technical indicators. In thispremise, it introduced separately the design thought and implementation method about opticaltrigger, sensor adapter circuit and digital module. Functionality and performance of all theparts of the system was verified. Calibration shock tube experiment and shooting range testwas accomplished after the system integrated, verifying the system’s function andeffectiveness.The main work in the thesis:（1）The shock wave’s signal analysis of explosive light and overpressure: On this basis, technical indicators of the measuring system is proposed.（2）Design principle and experimental validation of the light-triggering device. Itdesigned the special device for the front-end sampling of explosion light and used thelight-triggering device to synchronize distributed each test node.（3）The design and implementation of sensor adapter circuit. According to thecharacteristics of the ICP pressure sensor and system needs, it designed the special sensor’spower-supplying circuit and single power-supplying circuit for signal disposal.（4）The realization of the collection and storage module: It includes the function’simplementation of12bits A/D’s sequential control, SDRAM memory’s real-time storage andFlash memory’s data backup.（5）The design implementation of the embedded USB communication: Using bulk onlytransport in the mass storage device of USB protocol implemented the function of datacommunication between the equipment and the upper computer.

Related Dissertations

  1. The Study of Eletrostatic Method for Velocity Measurement of Gas/Solid Two-phase Flow,TH815
  2. Study of Multi-channel Real-time Status Monitoring System Based on Lab VIEW,TP274.2
  3. Research on Dynamic Demodulating Technique for Fiber Grating Sensor System,TN763
  4. Based on the new non-contact coordinate measuring machine probe laser tracking study,TH721
  5. Properties of the film pressure sensors and software compensation,TP212
  6. A SEMG Acquisition and Recognition System Based on VI,TH772.2
  7. Basic Study of Virtual Instrument,TP391.9
  8. Study on a Stored Testing System for Simultaneous Measurement of the Speed and Pressure of Shock Wave,TH82
  9. Research on the Data Acquisition System for Acoustic Signal of Leaking Water Supply Pipes,TP274.2
  10. Measurement Technology Research of Reactivity for Reactor about Digital Pulse Neutron Sources,TL375.1
  11. Study on Cable Fault Location Method On-Line Based on Wavelet,TM755
  12. MEMS accelerometer signal conditioning Earthquake Research,TH824.4
  13. Study on Portable System of Sound Intensity Measurement & Analysis Based on LabVIEW,TB524
  14. Research on DBPM System in Accelerator Beam Diagnosis,TL501.5
  15. Design and Realization of quality detection hardware system of ARM based power,TM761
  16. Study on Dielectric Response Measurement System of Oil-Paper Insulation in Transformer,TM855
  17. Study of Digital Partial Discharge Detector,TM83
  18. Oscilloscope signal conditioning channel and triggering circuit design,TN783
  19. Research on Multi-channel Receiver and Data Acquisition System of the Through-wall-radar,TN957.5
  20. The Research of3-D Flow Sensor’s Signal Conditioning Circuit,TP212
  21. The Design of Data Acquisition Device on Leakage Acoustic Signal of Water Supply Pipeline,TP274.2

CLC: > Industrial Technology > Arms industry > Ammunition, fuses, pyrotechnics > Ammunition > General issues > Test technology and equipment
© 2012 www.DissertationTopic.Net  Mobile