基于数据融合的微型电子测压器动态校准方法  

Dynamic Calibration Method of Micro Electronic Piezo Gauge Based on Data Fusion

作　　者：王卿[1,2] 祖静[1,2] 张瑜[1,2] 

机构地区：[1]中北大学电子测试技术国家重点实验室,山西太原030051 [2]中北大学仪器科学与动态测试教育部重点实验室,山西太原030051

出　　处：《火炮发射与控制学报》2010年第4期51-54,共4页Journal of Gun Launch & Control

基　　金：国家重点实验室基金(9140C120704070C12)

摘　　要：静态校准、落锤冲击校准等常规的校准方法不能满足微型电子测压器测试精度要求。为确保其在高温、高压和高冲击的实测环境中的测试精度,根据新概念动态测试和数据融合理论,从动态校准系统的组成及工作原理、基于自适应加权数据融合的"虚拟"标准测试系统的建立和基于相关性数据融合的测压器动态灵敏度的计算3个方面介绍了基于数据融合的微型电子测压器动态校准方法。多次测试的试验结果表明,利用该方法校准后的微型电子测压器的可靠性和测试精度均能满足测试要求,从而验证了此方法的可行性和合理性。Conventional calibration methods（such as static calibration,drop weight test calibration and so on） couldn＇ t meet the requirements of test accuracy of micro electronic piezo gauge.To guarantee their test precision under the conditions of high temperature,high pressure and high impact,according to the new concept theory of dynamic test and data fusion,dynamic calibration method of micro electronic piezo gauge based on data fusion was presented from following three aspects：composition and working principle of the dynamic calibration system,establishment of virtual standard test system based on self-adapting weighted data fusion and calculation of dynamic sensitivity based on relativity data fusion.Results obtained from many practical tests showed that both reliability and precision of micro electronic piezo gauge calibrated by use of this method can meet test requirements,and thus verify the feasibility and rationality of the method.

关 键 词：仪器仪表技术 压力测试 动态校准 数据融合 

分 类 号：TH823.2[机械工程—仪器科学与技术] TM930.12[机械工程—精密仪器及机械]