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The Development of Virtual Engineering Vibration Test Equipment

Author: HeXianLong
Tutor: YangXueShan
School: China Seismological Bureau, Institute of Engineering Mechanics
Course: Disaster Prevention and Reduction Engineering and Protective Engineering
Keywords: Data collection and analysis Wave velocity measurement and analysis The deflection measuring and analysis Ultra - low-frequency vibration table Calibration of digitizing
CLC: TH825
Type: Master's thesis
Year: 2008
Downloads: 60
Quote: 1
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Abstract


Data acquisition and signal analysis highlights the importance of increasing scientific research and national economic construction , it can be a true record of the signal picked up by the various sensors , and extract all kinds of useful information . Data acquisition and analysis system based on virtual instrument has its advantages , it is powerful , completely different from the function of a variety of measuring instruments can be achieved through different design procedures ; variability large , they can easily be increased in accordance with the actual situation less testing capabilities to improve the design of the target . In addition, simple operation , high precision measurement and control characteristics . Developed according to the needs of practical work , engineering data acquisition and analysis system based on virtual instrument . The main work includes: 1. Developed a 16-channel , general-purpose data acquisition and analysis system for the USB bus can be used for structural pulsation and vibration mode analysis , microtremor analysis , floors and dam building health diagnosis blasting experimental ambient vibration The impact so on . In this paper, the multiple correlation analysis to analyze the shear wave velocity . Based on this principle , the development of the site wave velocity measurement and analysis system , wave velocity measurements can be used in a variety of venues . This paper QY inclinometer developed static deflection measurement and analysis of bridge dynamic deflection system has been put into practical application . In this paper, the output signal of the vibration table automatically frequency signal extraction , to achieve the purpose of the removal of the noise caused by the vibration table calibration system of nonlinear signal and reduce the degree of the calibration signal distortion of the shaking table . Simultaneously the Fourier transform of a locally refined technology and using the database to manage the the shaking table vibration instrumentation calibration results , and the preparation of the digitized calibration software and design collection instrument , in order to achieve the XS - small , ultra-low frequency vibration table calibration system digitized calibration.

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CLC: > Industrial Technology > Machinery and Instrument Industry > Instruments, meters > Mechanical quantity measuring instruments > Vibrating measuring instruments
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