Development of low-g shock standard device based on rigid body collision for shock acceleration calibration

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Journal of Vibration and Shock ›› 2015, Vol. 34 ›› Issue (10) : 179-183.

SUN Qiao1,2，WANG Jian-lin1，HU Hong-bo2，YU Mei2，BAI Jie2

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Abstract

The low-g shock standard device based on rigid body collision for shock acceleration calibration was investigated and established, with the half-sine squared acceleration shape range from 20m/s2 to 10000 m/s2 and pulse duration from 0.5 ms to 10 ms. The expanded calibration uncertainty of sensitivity of shock accelerometers by laser interferometry is 1%, k=2. The structure of the device and key technology involved were described．The pulse generation materials were explained．The calibration results and uncertainty evaluation were provided．This low-g shock standard device is used for piloting international shock comparison APMP.AUV.V-P1.

Key words

metrology；shock calibration by laser interferometry；shock acceleration sensitivity；measurement uncertainty / international comparison

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SUN Qiao1,2，WANG Jian-lin1，HU Hong-bo2，YU Mei2，BAI Jie2. Development of low-g shock standard device based on rigid body collision for shock acceleration calibration[J]. Journal of Vibration and Shock, 2015, 34(10): 179-183

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