振动线数据采集和数据处理方案设计与验证

Design and experiment of vibrating wire data acquisition and processing system

振动线理论提供了一种高精度准直方法,将振动线理论应用于共架磁铁准直,可大大提高共架磁铁间的准直精度。介绍了应用振动线准直共架磁铁的实施方案,从总体方案出发,以振动线理论为依据提出了一种振动线系统数据采集和数据处理设计方案,并对传感器工作点对准、导线电流测量、数据采集设备选取、磁感应强度计算、磁场中心计算等关键问题进行分析,给出了解决方案。最后通过实验验证了方案的可行性以及系统的测量精度。

Vibrating wire theory provides a high accuracy alignment method, applying vibrating wire theory to magnets prealignment on a girder will greatly increase the alignment accuracy between the magnets. This paper introduces briefly the pre-alignment scheme of magnets on a girder. According to the scheme and the vibrating wire theory, it introduces a scheme of data acquisition and processing for a vibrating wire system. This paper also analyses and solves the key problems including sensor work point alignment, wire current measurement, data acquisition devices selection, magnetic induction intensity calculation and magnetic center calculation. Finally, it presents the experiments of feasibility and accuracy verification.