Evaluation of Measurement Uncertainty for Torque Standard Machine Using Air Rotary Bearing

Abstract:

Calibration for torque measurement devices has become a great demand in many industrial areas. The most important in a calibration process is decreasing its uncertainty. This paper presents in building formula to evaluate the measurement uncertainty for torque standard machine using air rotary bearing which is experimented at the Hanoi University of Science and Technology. The uncertainty of the device is composed of the uncertainty of the component elements such as arm length, load, friction torque, axial tilt, vibration load...etc. Based on them the formula is built to estimate the measurement uncertainty of torque standard machine, find out factors that affect most to the measurement uncertainty value, therefore it can benefit the further researches to improve the accuracy of the torque standard machine.

• Periodical: Applied Mechanics and Materials (Volume 870)
• Pages: 215-222
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.870.215
• Online since: September 2017
• Authors: Vu Van Duy*, Vu Toan Thang, Pham Van Hung
• Keywords: Air Bearing, Dead Weight, Friction Moment, Lever Arm, Torque Standard

References

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DOI: 10.1086/ahr/93.4.1019

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