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引用次数: 1

摘要

在最近国际单位制(SI)的重新定义之后,扭矩不再需要追溯到引力场中的校准质量,该引力场悬挂在已知的杠杆臂上,并通过一系列扭矩传感器传播。使用Kibble原理可以直接实现si可追溯扭矩,其中扭矩由校准的电磁换能器产生。本文分析了一套旨在直接实现扭矩至0.1%精度的新仪器的理论设计,并对其可行性进行了检验。仔细注意磁铁的设计,一个强大的和易于实现的扭矩校准器可以建立。
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The Design of an Instrument to Realize Small Torque at NIST 
After the recent redefinition of the International System of Units (SI), torque no longer needs to be traceable to a calibrated mass in a gravitational field suspended from a known lever arm and disseminated through a chain of torque transducers. An SI-traceable torque can be directly realized using the Kibble principle where a torque is generated by a calibrated electromagnetic transducer. Here, a set of theoretical designs for a new instrument aimed at direct realization of torque to 0.1% accuracy is analyzed and examined for feasibility. With careful attention to magnet design, a robust and easily implemented torque calibrator can be built.
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