Influence of acceleration harmonic distortion on shake table calibration for velocity seismometer
Ma Jiemei
Teng Yuntian
Zuo Aibin
Fan Xiaoyong
Zhang Lian
Abstract：Acceleration and velocity harmonic distortion are theoretically ana-lyzed,and then based on laboratory virtual instrument engineering workbench (Labview for short)digital measuring system is designed for the low-frequency vibration signals.Deviation between testing data from this system and the refer-ence value provided by National Institute of Metrology is minor.Seismometer calibration results indicate that acceleration waveform and its distortion reflect the actual condition of the shake table in a much harsher way,providing more precise information for the seismometer test on the shake table.
Keywords：harmonic distortionvelocityaccelerationLabviewcalibration on shake table
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 1124-1130 )