高g值加速度计宽脉冲冲击校准准则

范锦彪;李婉蓉;祖静; 徐鹏;林祖森;

振动与冲击 ›› 2014, Vol. 33 ›› Issue (3) : 140-144.

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PDF(1123 KB)
振动与冲击 ›› 2014, Vol. 33 ›› Issue (3) : 140-144.
论文

高g值加速度计宽脉冲冲击校准准则

  • 范锦彪1,2 李婉蓉1,2 祖静1, 2 徐鹏1,3 林祖森1,3
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Shock Calibration of High-g Accelerometers with a Width Excitation Pulse

  • FAN Jin-biao1,2 ZU Jing1,2 XU Peng1,2 Lin Zu-sen1
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文章历史 +

摘要

针对高g值加速度计冲击灵敏度绝对法校准中遇到的激励脉冲的宽度问题,以加速度计数学模型为基础,导出了适用于高g值加速度计冲击灵敏度校准的宽脉冲校准准则。该准则给出了对不同谐振频率的高g值加速度计的冲击灵敏度进行校准时,校准所需的激励宽脉冲的最小宽度与加速度计第一阶安装谐振频率、阻尼比及校准误差的关系。以Hopkinson杆校准系统为试验手段,通过988型高g值压电加速度计和SIMIT-AYZ-3型高g值压阻加速度计的校准试验数据验证了准则的正确性。该准则为高g值加速度计冲击灵敏度校准时激励脉冲宽度的确定提供了理论依据。

Abstract

In order to determine the duration of shock pulse used as an excitation in the absolute calibration of high-g accelerometer, a calibration principle was put forward based on mathematical model of accelerometer. For the accelerometers with different natural frequency, the principle presented the relationship of the first order natural frequency and damp of accelerometer, calibration error and the least excitation pulse duration. With a Hopkinson calibration system, the correctness of the principle was validated by calibration experiments for a high-g accelerometer 988 and SIMIT-AYZ-3. This principle has provided the theoretical basis for the determination of the shock pulse duration in the absolute calibration.



关键词

测试计量技术及仪器 / 灵敏度校准 / 宽脉冲激励 / 高g值加速度计

Key words

Measuring and testing technologies and instruments / Sensitivity calibration / Width pulse excitation / high-g accelerometer

引用本文

导出引用
范锦彪;李婉蓉;祖静; 徐鹏;林祖森;. 高g值加速度计宽脉冲冲击校准准则[J]. 振动与冲击, 2014, 33(3): 140-144
FAN Jin-biao;ZU Jing;XU Peng;Lin Zu-sen. Shock Calibration of High-g Accelerometers with a Width Excitation Pulse[J]. Journal of Vibration and Shock, 2014, 33(3): 140-144

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