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- W2361350247 abstract "In order to realize the precise and rapid measurement of structural vertical displacement,a kind of structural vertical displacement measuring system based on the liquid-air coupling interconnected pipes was developed.For this study,the system with fresh water was taken as the sample,and the parametric effect of the measuring precision and errors was theoretically analyzed.The results of the analysis indicate that the theoretical measuring precision of the system is up to0.01 mm.When the temperature of the water varies within the range of 0~60℃,the variation of water density induces differences between the measured displacement values and the actual condition,and the maximum relative error is 1.678%.The temperature changes of the closed air keep a non-linear relation with the displacement measuring errors.The displacement measuring errors increase as the temperature difference becomes greater,increases as the volume of the closed air swells and decreases as the basic temperature rises.In China,the maximum relative measuring error of the system induced by latitude variation is 0.094%.When the latitude is less than 1 000 m,the maximum relative measuring error of the system induced by latitude variation is 0.031 4%.The results of the experiment and application indicate that in the short-term testing,the system has a 0.1mm grade precision,which is able to accommodate real-time measurement and is convenient for operation." @default.
- W2361350247 created "2016-06-24" @default.
- W2361350247 creator A5080370437 @default.
- W2361350247 date "2015-01-01" @default.
- W2361350247 modified "2023-09-25" @default.
- W2361350247 title "Precision and Error Analysis of Liquid-Air Coupling Structural Vertical Displacement Measuring System" @default.
- W2361350247 hasPublicationYear "2015" @default.
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