摘要
结合MonteCarlo法的虚拟仪器测量不确定度评定流程,提出两个方面的完善方案:根据虚拟仪器软件数学模型,使用区间分析法建立舍入误差模型,评定计算机舍入误差对虚拟仪器测量不确定度的影响;在不确定度源仿真模块中引入仿真质量检测与控制功能,降低仿真质量对评定效果的影响。最后以数字称重传感系统为例,说明了完善方法的有效性。
Improvement of measurement uncertainty evaluation of virtual instruments based on Monte Carlo method is proposed in tow aspects.According to the mathematical modules,roundoff error module is built based on interval analysis method,in order to evaluate the measurement uncertainty of virtual instruments caused by roundoff errors.The uncertainty evaluation is effected by the quality of simulation,in order to reduced the impaction,an simulation quality testing and controlling module is built in the uncertainty simulation module. An example according to pressure measuring system was showed, and the result prove the improvement.
出处
《科学技术与工程》
2009年第23期7122-7125,7132,共5页
Science Technology and Engineering
基金
广东省科技计划项目(2007A060304003)资助
