The research of force standard machine tracing to the Planck constant h

作     者：Chen, Yuanjie Wang, Na Xu, JinXin Yin, Ruiduo Chen, Jie Xie, Xiaobin Chen, Jianing Min, Yue Li, Haigen 

作者机构：Zhejiang Institute of Quality Sciences Hangzhou China China Jiliang University Hangzhou China Shaoxing Kent Machinery Electronics Co. Ltd. Hangzhou China Zhejiang Provincial Key Laboratory of Digital Precision Measurement Technology China 

出 版 物：《Measurement: Sensors》 (Measurement. Sens.)

年 卷 期：2024年第38卷

核心收录：

基　　金：Funding: This work was supported by National Natural Science Foundation of China (Grant No. 52375555 ) and Department of Science and Technology of Zhejiang Province  China 

主　　题：Construction equipment 

摘      要：The force transducer converts the magnitude of a force into an associated electrical signal, detecting mechanical quantities such as tension, pressure, weight, torque, strain, and internal stress. Being an indispensable core component of power equipment, construction machinery, various working machinery, and industrial automation systems, the calibration of the force transducer is crucial. This paper proposes a continuous force standard machine for calibrating force transducers, which combines the advantages of the common force standard machines and the Kibble balance. The goal of the proposed standard machine is to continuously measure the electromagnetic force and trace the force to Planck constant h. In the proposed design, the standard electromagnetic force of kilonewton magnitude is generated by the permanent magnet and coil system, which can be continuously changed by adjusting the magnitude and direction of the coil current. The electromagnetic force, amplified by the unequal arm balance lever, acts on the calibrated transducer. Herein, the concrete components of the new force standard machine are given, and the feasibility is demonstrated. © 2024