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On-line dynamic testing and transform functions identification for force balance accelerometer

YANG Zhen-yu,SHEN Yi,LIU Zhi-yan(School of Aerospace,Harbin Institute of Technology,Harbin 150001,China)  
In order to implement the on-line dynamic testing automation and transform functions identification for force balance accelerometers in a six free degree ground motion measurement system,a testing system is presented which embedded in the six free degree ground motion measurement system.A/D,D/A converters and micro-controller are included in the testing system.The transform functions identification for the force balance accelerometers are implemented by frequency domain identification algorithms Levy method.Experimental results show that ultra low frequency shake-table could be replaced by this testing system to identify dynamic model of force balance accelerometers.
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