SASO / NMCC的1 kN·m二进制自重扭矩标准机

Q4 Engineering

Measurement Sensors Pub Date : 2025-05-01 DOI:10.1016/j.measen.2024.101383

C. Doğan , S. Tunacı , S.A. Bin Jarbua , S.M. AlQarni

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引用次数: 0

摘要

2019年，TÜBİTAK UME在国家测量与校准中心（SASO/NMCC）建立了一台1 kN·m二进制自重扭矩标准机。力矩单位的实现基于力矩的定义，可直接追溯到质量、长度和时间单位。它是由杠杆臂和自重系统执行的。杠杆臂是对称的，由空气轴承支撑。这台机器有两个相同且独立的自重装置，根据二进制系统工作以产生右手和左手扭矩。所有自重都受到当地重力和空气浮力的影响。本机可施加1 N·m ~ 1000 N·m的扭矩，分辨率为1 N·m。本文介绍了本机的机械结构和不确定度评定。在1 N·m ~ 1000 N m范围内，相对扩展的测量不确定度小于1 × 10−4。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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1 kN·m binary dead weight torque standard machine at SASO / NMCC

A 1 kN·m binary dead weight torque standard machine was established at National Measurement and Calibration Center (SASO/NMCC) in 2019 by TÜBİTAK UME. Realisation of torque unit is based on the definition of torque and directly traceable to the mass, length, and time units. It is performed by a lever arm and deadweight system. The lever arm is symmetrical and supported by an air bearing. The machine has two identical and independent dead weight sets, work according to a binary system to create right and left hand torques. All dead weights are under the influence of local gravity and air buoyancy. The machine can apply torque from 1 N·m to 1000 N m with a resolution of 1 N m.

This paper describes the mechanical structure of the machine and uncertainty assessment. The relative expanded measurement uncertainty is smaller than 1 × 10⁻⁴ in the range of 1 N·m to 1000 N m.

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