摘要
针对计量器具长时间使用以及在各种环境条件的影响下其精度会逐渐下降的状况,采用虚拟预测理论建立某计量标准精度变化的组合预测模型,科学地描绘了该计量标准的精度变化规律,为实施计量标准质量监测过程控制提供理论依据。虚拟预测利用近期已知数据调整和优化预测模型的参数,达到了检验模型准确性、减小真正预测误差的目的,提高了预测精度。实例结论表明,虚拟预测方式的预测精度高于传统拟合模型,达到了预期效果。
In allusion to the worse of the precision after the using of the standard instrument and the influence of the various environments, the authors adopted the virtual forecasting theory, established combined forecasting model of the standard instrument, described the changing law of the precision of the standard instrument scientifically, and provided the theoretical basis for controlling the process for quality inspectability of the standard instrument. The virtual forecasting method adjusts and optimizes the parameters of forecasting model by utilizing the given data at short-term time. This method achieved the purpose of checking the accuracy of the model and reducing the real forecasting error, and advanced the forecasting precision. The conclusion showed that the virtual forecasting method had many advantage over the traditional fitting model, received the predictive effective.
出处
《中国测试》
CAS
2009年第5期38-40,47,共4页
China Measurement & Test
关键词
计量检定
标准
虚拟预测
组合预测
调整优化
模型参数
Metrological verification
Standards
Virtual forecasting
Combined forecasting
Adjustment and optimization
Model parameter
