摘要
为了实现六自由度强震观测系统中力平衡加速度计在线动态测试的自动化和传递函数辨识,提出一种嵌入到六自由度强震观测系统内的测试系统,该系统由模/数、数/模转换器以及微控制器组成。利用频域辨识算法—Levy法,实现了力平衡加速度计传递函数的辨识。试验结果证明:利用这种测试系统可以代替超低频标准振动台来进行力平衡加速度计动态模型的辨识。
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 microcontroller 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.
出处
《传感器与微系统》
CSCD
北大核心
2006年第10期25-27,共3页
Transducer and Microsystem Technologies
基金
国家自然科学基金资助项目(50378086)
地震科学联合基金资助项目(104139)
关键词
力平衡加速度计
在线测试
传递函数
foree balance accelerometer
on-line testing
transform functions
