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| Study and Establishment for the Shock Acceleration Standard Based on Drop Hammer |
| HU Hong-bo,YU Mei |
| National Institute of Metrolgy, Beijing 100013, China |
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Abstract The shock exciter based on drop hammer is described, including its structure and principles. Combing with digitizer and virtual instrument, the shock comparison calibration system is established coincided with the method recommended by ISO16063—22. A comparison of shock waveform generated by the standard based on drop hammer and Hopkinson bar is carried out. And also the consistent calibration result between comparison method and primary method valid the reliability of the device, and finally the difference between vibration and shock calibration was discussed.
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［1］ISO 16063—13:2001 Methods for calibration of vibration and shock transducers-Part 13: Primary shock calibration by laser interferometry［S］.
［2］ISO 16063—22:2005 Methods for calibration of vibration and shock transducers-Part 22: Shock calibration by comparison to a reference transducer［S］.
［3］黄俊钦,顾建雄. 高g值加速度计和压电式力传感器的动态校准［J］. 计量学报,2001,22(4): 300-304.
［4］胡红波,于梅. 低频振动台激励系统负反馈控制的研究与应用［J］. 计量学报,2010,31(6): 513-516.
［5］Elster C, Link A, Bruns T. Analysis of dynamic measurements and determination of time-dependent measurement uncertainty using a second-order model［J］.Meas Sci Technol, 2007,18(12):3682-3687.
［6］Alfred Link, et al. Accelerometer identification using shock excitation［J］. Measurement, 2004, 35(2):191-199.
［7］胡红波.虚拟仪器技术在冲击信号测试分析中的应用［J］.计量技术,2010,(6):22-24.
［8］郭伟国,李玉龙,等.应力波基础简明教程［M］.西安:西北工业大学出版社,2007.
［9］黄俊钦,测试系统动力学［M］.北京:国防工业出版社,1996.
［10］徐科军.传感器动态特性的实用研究方法［M］.合肥:中国科学技术大学出版社,1999.
［11］von Martens H J, Link A, et al. Recent advances in vibration and shock measurements and calibrations using laser interferometry［J］. Porc SPIE, 2004,5503:1-9.
［12］Link A, von Martens H J. Calibration of accelerometers by shock exciation and laser interferometry［J］. Shock Vib,2000,7（2）:101-112. |
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2012, Vol. 33 
