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设计了磁阻传感器系统电路。采用HMC1043磁阻传感器进行磁定位的弱磁信号采集,将采集到的信号放大,经由数据采集卡给PC;然后基于LabVIEW平台开发数据采集处理系统,进行处理和显示;最后进行该传感器静态特性试验与分析,测算出其灵敏度和线性度。实验结果表明该设计是可行和有效的。
Design the magnetoresistive sensor system circuit. HMC1043 magnetoresistive sensor for magnetic field weak magnetic signal acquisition, the collected signal amplification, the data acquisition card to the PC; and then based on the LabVIEW platform to develop data acquisition and processing system for processing and display; Finally, the static characteristics of the sensor test And analysis, calculate its sensitivity and linearity. Experimental results show that the design is feasible and effective.