1 kN·m binary dead weight torque standard machine at SASO / NMCC
Year: 2024
Type: article
Abstract: 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.
Source: Measurement Sensors
Authors: C. Doğan, S. Tunacı, S.A. Bin Jarbua, S.M. AlQarni
Language: English
Subfield: Statistics, Probability and Uncertainty
Field: Decision Sciences
Domain: Social Sciences
Open Access status: gold
Estimated APC paid: $1,800
OpenAlex ID: W4405859974