【摘要】 基于逆磁致伸缩效应的索力测量原理,提出一种左右对称激励的旁路式磁路结构,感应检测线圈绕在旁路的轭铁上,通过测量感应电压反映拉力所引起的磁参量的变化,从而求得拉力。对传感器的激励励磁方式、外磁化强度、磁路结构等进行了深入的讨论,针对磁路结构用磁导分析法做了严格的推导,完成传感器的参数设计。通过搭建相应的实验系统,对所设计的传感器做了初步的原理性拉力实验。实验结果表明:该传感器的磁路结构是可行的,测量的重复性较好,小于0.2%。更多还原

【Abstract】 The principle of cable tension sensor based on magneto-elastic effect is discussed and a bypass-simulation structure of the cable tensile sensor based on magnetic-elastic effect is proposed,in which the simulation and excitation windings are both surrounded by cable tension.By measuring the inductive voltages,the cable tension stress may be measured dynamically.In addition,the stimulation method,external magnetic intensity and magnetic circuit structure of the sensor are analyzed,and the sensor parameters are proposed.An experimental system was developed and experiments of pulling tension were carried out.Experiment results indicate that the structure of the sensor is feasible,and its repeat error is less than 0.2%.更多还原