Measurement uncertainty evaluation of a hexapod-structured calibration device for multi-component force and moment sensors
Measurement uncertainty evaluation of a hexapod-structured calibration device for multi-component force and moment sensors
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DOI：
10.1088/1681-7575/aa5b66
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发表时间：
2017-04-01
期刊：
影响因子：
2.4
通讯作者：
Tutsch, R.
中科院分区：
文献类型：
--
作者：
Nitsche, J.;Baumgarten, S.;Tutsch, R.
2001年，德国联邦物理技术研究所（Physikalisch-Technische Bundesanstalt）开发了一种六足结构校准设备，作为最多六个分量的多分量力和力矩传感器的基准测量设备。该机器可以产生和测量高达10 kN的力和高达1 kN中心点m的力矩。本文从改进的物理模型和利用隐函数定理及蒙特卡罗方法计算灵敏度系数入手，分析了该仪器的测量不确定度预算。讨论了影响测量不确定度的主要因素，并提出了进一步降低测量不确定度的建议。
As a reference measurement machine for multi-component force and moment sensors of up to six components, a hexapod-structured calibration device was developed at the Physikalisch-Technische Bundesanstalt in 2001. The machine can generate and measure forces of up to 10 kN and moments of up to 1 kN center dot m. In this paper, the measurement uncertainty budget of the machine is analyzed, beginning with an improved physical model and calculation of sensitivity coefficients using the implicit function theorem and the Monte Carlo method. The main influencing factors for the measurement uncertainty are discussed and suggestions for further reduction of the uncertainty are given.