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Study of New Vertical Pendulum Tilt Meter

Author: WuYanXia
Tutor: XiaoJun
School: Wuhan University of Technology
Course: Mechanical and Electronic Engineering
Keywords: Earthquake Prediction Tilted VS new vertical pendulum tiltmeter Capacitance micrometer sensor Demarcate
CLC: TH762.2
Type: Master's thesis
Year: 2005
Downloads: 69
Quote: 3
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Abstract


The earthquake is the result of crustal media some special parts of the energy in the long-term effects of the tectonic force long-term accumulation and sudden release . Therefore , during the earthquake preparation seismogenic media must deformation the crustal deformation plays an important role in the study of earthquake monitoring and prediction , the world regarded crustal deformation as an important means of research and earthquake prediction . Inclinometer is a study of the basic instrument of the tide and seismic , horizontal pendulum tiltmeter , plumbing inclinometer vertical pendulum tiltmeter . VS new vertical pendulum tiltmeter , due to its more stable mechanical body , the instrument backplane using an isosceles triangle structure , increased the baseline length of the instrument , thereby reducing the impact of installation errors on the performance of the instrument ; and its circuit is simple and reliable, and to improve the circuit stability, reduce the circuit debug workload ; addition , the instrument uses NAND gate do square wave oscillation signal , so that the signal-to-noise ratio of the instrument can be improved ; instrument adopts the good shielding measures to reduce signal interference ; main amplifier scaled , wider bandwidth , rich record to tilt more information , can be well applied to earthquake prediction . This article on the VS new vertical pendulum tiltmeter the mechanical structure and its components , differential capacitance micrometer sensor , instrument calibration, tune pendulum tiltmeter practical application in-depth research . The main findings are as follows : (1 ) VS novel the vertical pendulum major mechanical components research, fixed support bar , adjustable support bar double axial positioning , the pad level set level , the main bracket using whole cylindrical cross-section structure and other technical requirements guarantee the inclinometer mechanical stability of the body . ( 2 ) The instrument backplane isosceles triangle structure of the instrument baseline length to increase the impact of the performance of the instrument can reduce installation errors . (3 ) Details of the high - precision differential capacitive displacement sensor and instrument of anti-jamming measures . (4) to study the method of calibration of the instrument , to compare the the electrostatic calibration and the advantages and disadvantages of weight calibration . The electrostatic calibration method without calibration device , easy to operate and reliable VS new vertical pendulum tiltmeter static calibration method . (5 ) Research VS new vertical pendulum tiltmeter tune sway device , circuit design automatic pendulum .

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CLC: > Industrial Technology > Machinery and Instrument Industry > Instruments, meters > Earth Science Instruments > Geophysical observation instruments > Seismic instruments
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