100 N·m NEGATIVE STEP DYNAMIC TORQUE STANDARD MACHINE

Li To, Shang Weilu, Cheng Yongpei, Yan Kangping, Liu Zhong

Abstract

100 N·m negative step dynamic torque standard machine is used to calibrate the dynamic characteristics of torque transducer. Through measurement of negative step excitation time <i>&tau;</i>,it can get the inherent frequency <i>&omega;</i>_n. The paper describes the working principle, key technology, test data and the uncertainty analysis of the machine. The specification of machine is as follows: measurement range 100 N·m, <i>&tau;</i> &le; 5ms, uncertainty <i>U</i> = 2.64%, <i>k</i>=2.

Keywords

torque, negative step, cylinder, &tau;, &omega;_n

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PWC-2006-TC3-021u.pdf

DOI

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IMEKO TC

TC3 - Measurement of Force, Mass, Torque, and Gravity

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