Calibration of a torque measuring device using an electromagnetic force torque standard machine
Calibration of a torque measuring device using an electromagnetic force torque standard machine
复制标题
使用电磁力扭矩标准机校准扭矩测量装置
DOI：
10.1016/j.measurement.2019.07.049
复制
发表时间：
2019
期刊：
影响因子：
5.6
通讯作者：
KenichiFujii
中科院分区：
文献类型：
--
作者：
AtsuhiroNishino;KenichiFujii
为了实现微扭矩标准，我们参考了国际单位制（SI）中公斤重新定义时使用的基布尔平衡法，研究了电磁力产生扭矩的原理。在之前的研究中，我们开发了电磁力扭矩标准机（EMTSM），利用基布尔平衡方法创建精确扭矩，并实现 SI 可追溯、非基于重力的扭矩标准。为了确保日本工业中使用的扭矩标准的 SI 可追溯性，在使用扭矩标准机 (TSM) 校准 TMD 时，有必要应用日本测量仪器联合会指南 JMIF-015 中描述的扭矩测量设备 (TMD) 校准程序。在本研究中，我们使用 EMTSM 和基于 JMIF-015 的校准程序开发了 TMD 校准程序。此外，我们还引入了高精度可编程电压/电流源，将 EMTSM 的校准范围扩大到 0.27μN∙m 至 100mN∙m。 EMTSM 实现的扭矩的相对扩展不确定性Wtsm_e 被评估为 1.7×10−3，在此扭矩范围内覆盖因子 kof 2。使用 EMTSM 以及基于 JMIF-015 的校准程序的低容量 TMD 的校准结果与使用自重扭矩标准机校准的典型应变计扭矩传感器的结果相同。
To realize a microtorque standard, we have been investigating the principle of torque generation with an electromagnetic force by referring to the Kibble balance method used for the redefinition of the kilogram in the International System of Units (SI). In a previous study, we developed an electromagnetic force torque standard machine (EMTSM) to create precise torque using the Kibble balance method and realize an SI-traceable, non-gravity-based torque standard. To assure the SI traceability of torque standards used in Japanese industry, it is necessary to apply the calibration procedure for torque measuring devices (TMDs) described in the Japan Measuring Instruments Federation guideline JMIF-015 when calibrating TMDs with torque standard machines (TSMs). In this study, we developed a calibration procedure for TMDs using the EMTSM with calibration procedures based on JMIF-015. In addition, we introduced a highly accurate programmable voltage/current source to expand the calibration range of the EMTSM to 0.27 μN∙m to 100 mN∙m. The relative expanded uncertaintyWtsm_eof the torque realized by the EMTSM was evaluated to be 1.7 × 10−3, with a coverage factorkof 2 over this torque range. The calibration results for a low-capacity TMD using the EMTSM with calibration procedures based on JMIF-015 were equivalent to those of a typical strain gauge torque transducer calibrated using a deadweight torque standard machine.