扭矩
湿度
校准
传感器
灵敏度(控制系统)
环境科学
温度测量
准确度和精密度
声学
测量不确定度
材料科学
气象学
工程类
数学
物理
电子工程
统计
热力学
作者
Mulugeta Derebew,Min Seok Kim,Yon Kyu Park,Ho‐Young Lee
出处
期刊:Journal of the Korean Society for Precision Engineering
[Korean Society of Precision Engineering]
日期:2015-02-01
卷期号:32 (2): 185-190
标识
DOI:10.7736/kspe.2015.32.2.185
摘要
This paper presents a new method to determine sensitivity coefficients of temperature and humidity of torque transducers by using a natural and seasonal variation of ambient conditions at the laboratory. We had measured the sensitivities of the torque transducers over almost one year using the KRISS 2 kN m torque standard machine. The sensitivity data acquired at various ambient conditions were processed using our measurement model to extract the sensitivity coefficients of temperature and humidity simultaneously with high precision. A comparison with a previous method using an environmental control chamber was carried out to test the feasibility of using our new method. Two results agreed within the uncertainty. We revealed that the torque measuring errors could be 8 times higher than the measurement and calibration capability of KRISS torque standard machine if the sensitivity changes due to the temperature and humidity are not properly corrected during a calibration.
科研通智能强力驱动
Strongly Powered by AbleSci AI