Dynamic linearity calibration system for accelerometers with high measurement range

SHI Yun-bo; YANG Zhi-cai; CAO Hui-liang; ZHI Dan; CHEN Yan-xiang; WANG Yan-yang

doi:10.3788/OPE.20162402.0381

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Dynamic linearity calibration system for accelerometers with high measurement range

更新时间：2020-08-13

- Dynamic linearity calibration system for accelerometers with high measurement range
- Optics and Precision Engineering Vol. 24, Issue 2, Pages: 381-389(2016)
- 作者机构：
  
  1. 中北大学电子测试技术国防科技重点实验室,山西太原,030051
  2. 中北大学仪器与电子学院, 山西太原 030051
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20162402.0381
  CLC： TH824.4
- Received：20 July 2015，
  
  Revised：21 August 2015，
  
  Published：25 February 2016
- 稿件说明：
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石云波, 杨志才, 曹慧亮等. 高量程加速度计动态线性校准系统[J]. 光学精密工程, 2016,24(2): 381-389

SHI Yun-bo, YANG Zhi-cai, CAO Hui-liang etc. Dynamic linearity calibration system for accelerometers with high measurement range[J]. Editorial Office of Optics and Precision Engineering, 2016,24(2): 381-389
石云波, 杨志才, 曹慧亮等. 高量程加速度计动态线性校准系统[J]. 光学精密工程, 2016,24(2): 381-389 DOI： 10.3788/OPE.20162402.0381.

SHI Yun-bo, YANG Zhi-cai, CAO Hui-liang etc. Dynamic linearity calibration system for accelerometers with high measurement range[J]. Editorial Office of Optics and Precision Engineering, 2016,24(2): 381-389 DOI： 10.3788/OPE.20162402.0381.

摘要

设计了双弹头霍普金森杆用于精确标定高

值加速度计的动态线性参数。基于一维应力波传播理论和弹性波叠加原理

分析了双弹头霍普金森杆为不同尺寸时对获取所需激励加速度信号的影响。利用ANSYS/LS-DYNA有限元仿真软件对不同设计条件下双弹头霍普金森杆的冲击效果进行了仿真分析。通过对不同影响因素的对比

确定了结构参数

设计了直径为30 mm

长度为1200 mm的双弹头霍普金森杆

即高量程加速度计动态线性校准系统。利用设计的双弹头霍普金森杆对高量程加速度计进行了动态线性校准和试验验证

结果显示加速度计动态线性误差在5%以内

证明了设计的装置可对高量程加速度计进行动态线性校准

校准结果基本满足冲击校准的要求。

Abstract

A dynamic linearity calibration system

dual warhead Hopkinson bar

was designed to calibrate the dynamic linear parameters of a micro accelerometer with high measurement range accurately. On the basis of one-dimension stress wave theory and elastic wave superposition principle

the influences of the dual warhead Hopkinson bar with different sizes on the required acceleration signals were analyzed. The ANSYS/LS-DYNA was employed to simulate the shock effect of the dual warhead Hopkinson bar under different design conditions. According to analysis and simulation on different factors

the design parameters were determined. Then

a dynamic linearity calibration system(dual warhead Hopkinson bar) for accelerometers with the diameter of 30 mm and the length of 1200 mm was designed. The dual warhead Hopkinson bar was used in the dynamic linearity calibration of an accelerometer with high measurement range. The results indicate that the dynamic linear error of the accelerometer is within 5%

which verifies that the dual warhead Hopkinson bar designed is feasible for dynamic linearity calibration of the accelerometers with higher measurement ranges

and the calibration results satisfy the requirements of shock calibration.

关键词

Keywords

references

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