基于LabVIEW的磁阻自动优化测量系统

Automatic optimization measurement system of magnetoresistance based on LabVIEW

以功率电源、电磁铁、高分辨率特斯拉计、步进电机转动器、精密电流源与精准电压表为基础器件,基于LabVIEW,编写虚拟仪器程序,实时呈现曲线与数据,并与用户交互来控制实际仪器。实现了施加特定磁场、转动角度、控制精确电流、读取次微伏级电压等基础功能,并通过编程实现自动优化测试与数据处理。系统以自动优化分辨率为创新点,并且在编写程序时以模块化为导向,使得模块之间更容易实现增改与迁移。

Based on LabVIEW,virtual instrument programs is written,curves and data are shown in real-time,power supply,electromagnet,high-resolution Tesla meter,stepper motor rotator,precision current source and precision voltmeter are used as basic devices.The actual instruments are interactively controlled by user.The basic functions of applying specific magnetic fields,rotating angles,controlling precise currents and reading sub microvolt voltages are realized,and automatic optimization test and data processing are realized by programming.This system takes the automatic optimization resolution as the innovation point,and the programs are written with the orientation of modularization,which makes it easier to realize the change and migration between modules.