摘要
介绍了相关分析法在绝对法振动校准中的应用,详细说明了相关分析法的理论基础,并与传统正弦逼近法进行了比较.通过接近实际校准情况的仿真过程,证明了该方法的有效性.在绝对法标准振动台上,在同样的条件下分别按照相关分析法与正弦逼近法对选定的加速度计进行了校准试验,一致性较好的校准结果证明了该方法的有效性.相关分析法计算简单,对噪声不敏感,是实现绝对法振动校准的一种有效的方法.
The application of correlation analysis method in primary vibration calibration is investigated in the paper. The theoretical principle of the method is introduced in detail and the comparison with the conven- tional sine - approximation method is made. The effectiveness of the method is illustrated through reasonable simulation. Experiment verification for the two mentioned methods is made on the standard of primary vibra- tion calibration system, and the validity of the correlation analysis method is verified by the experiment results in good agreement. Simulation and practical results both have proved that it is an optional method for primary vibration calibration for its easy implementation and insensitivity to noise.
出处
《测试技术学报》
2013年第5期384-389,共6页
Journal of Test and Measurement Technology
基金
国家质检总局质量安全与量值传递专项项目(22-ALC1201-13)
国家重大科学仪器设备开发专项项目(2012YQ09020804)
关键词
计量学
相关分析法
正弦逼近法
绝对法振动校准
metrology
correlation analysis
sine-approximation method
primary method vibration calibra- tion
