On the Fast and High Accurate Mass Measurement under the Conditions of Floor Vibration. On the Method of Compensating the Difference in Dynamics by Using the Approximate Polynomial Model.
On the Fast and High Accurate Mass Measurement under the Conditions of Floor Vibration. On the Method of Compensating the Difference in Dynamics by Using the Approximate Polynomial Model.
复制标题
地板振动条件下快速高精度质量测量的研究
DOI：
10.2493/jjspe.65.1450
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发表时间：
1999
影响因子：
--
通讯作者：
Takeyoshi Nagao
中科院分区：
文献类型：
--
作者：
Jianxin Sun;Y. Fujioka;T. Ono;Takeyoshi Nagao
本文研究了在楼板振动条件下快速、高精度的质量测量问题。考虑了一种由称重传感器和用于消除地板振动不良影响的虚拟称重传感器组成的特殊类型的衡器。为了提高质量测量的精度，需要补偿两个称重传感器之间的动态差异。为此目的，质量测量算法，它利用称重传感器的数值模型，在以前的文件中提出。将称重传感器视为一个单自由度的弹簧-质量系统，建立了称重传感器的数学模型。然而，也有一些情况下，两个称重传感器之间的动态差异可能无法正确补偿，即使使用所提出的算法，因为该假设可能不被满足。因此，为了正确地补偿两个称重传感器之间的动态差异，本文提出了一种新的算法，它使用多项式函数的近似模型。实验证明了新算法的有效性。
This paper concerns the problem of the fast and high accurate mass measurement under the conditions of floor vibration. A specific type of weighing machine, which consists of a weighing loadcell and the dummy loadcell to cancel the undesirable influence from floor vibration, is considered. To improve the accuracy of mass measurement, it is necessary to compensate the difference in dynamics between the two loadcells. For this purpose, a mass measuring algorithm, which makes use of the numerical model of a loadcell, was proposed in the previous paper. The numerical model is obtained on the assumption that the loadcell is regarded as a spring-mass system of 1 degree of freedom. However, there are also some cases where the differences in dynamics between the two loadcells may not be compensated correctly even if the proposed algorithm is used, because the assumption may not be satisfied. Therefore, in order to compensate the difference in dynamics between the two loadcells correctly, a new algorithm, which uses the approximate model of polynomial function, is described in this paper. The effectiveness of the new algorithm is certified by experiment.