产品厂商新闻方案技术培训下载招聘品牌展会视频媒体国防军民融合

  •  
     

    测量仪器校准间隔的灰色非等时距预测

    2013-06-12 中国测试杂志
    孙  群1, 赵  颖1, 王国华2
    (1. 聊城大学汽车与交通工程学院,山东 聊城 252059; 2. 北京航空航天大学仪器科学与光电工程学院,北京 100191)
    摘  要:针对测量仪器经优化后的校准间隔呈现非等时距的特点,提出一种灰色非等时距校准间隔预测方法。通过分析历史校准数据的特征,建立校准数据的数学描述模型。考虑到历史校准数据小样本、非线性的特点,采用灰色新陈代谢非等时距GM(1,1)预测模型,预测测量仪器的非等时距校准间隔。实验表明:灰色新陈代谢非等时距GM(1,1)模型克服了随机扰动对系统的影响,更能反映系统的变化趋势,适用于测量仪器非等时距校准间隔的预测。
    关键词:测量仪器;校准间隔;预测;非等时距;灰色理论
    中图分类号:TP801.6;TM930.113;O213.1;O232      文献标志码:A      文章编号:1674-5124(2013)03-0014-03
    Prediction of calibration interval for a measuring instrument using non-equidistance
    grey model
    SUN Qun1, ZHAO Ying1, WANG Guo-hua2
    (1. School of Automobile and Transportation Engineering,Liaocheng University,Liaocheng 252059,China;
    2. School of Instrumentation Science & Opto-electronics Engineering,Beihang University,Beijing 100191,China)
    Abstract: After the calibration interval of a measuring instrument was optimized, the historical calibration data sequence was non-equidistance. Therefore, traditional calibration interval prediction models based on equal sequence could not be applied again. This article proposed the modeling thought of calibration interval prediction by analyzing characters of historical calibration data and building the mathematical model of calibration data. Based on this work, a renewal non-equal GM(1,1) model was proposed. Experiments showed that the renewal non-equal GM(1,1) model conquered the effect of random disturbance and could be used to forecast the calibration interval of a measuring instrument.
    Key words: measuring instrument; calibration interval; prediction; non-equidistance; grey theory
    分享到:
     
     
     
     
    热门产品
     
    推荐厂商
     
    关于我们 | 联系我们 | 广告服务 | 版权隐私 | 积分换礼 | 友情链接 | 站点导航 | 违规举报