摘要
研制了一种基于各向异性磁阻(AMR)传感器的车辆探测器.该车辆探测器由三维AMR传感器及相应的信号处理电路组成.当车辆驶过探测器上方时,车辆的存在将会引起周围磁场的变化,三维AMR传感器输出将发生相应的变化,根据AMR传感器的输出可判断周围空间内车辆的存在与否.对该探测器的特性进行了实验研究.实验结果表明:当车辆分别沿南北向、东西向通过AMR传感器上方时,传感器输出变化规律不同;该探测器可实现车辆探测.
A vehicle detector with an anisotropic magnetoresistive （AMR） sensor was developed. The vehicle detector consisted of a three-axis AMR sensor and related signal processing circuit. When a vehicle was moving over the detector, the surrounding magnetic field changed due to vehicle disturbance, and the output of the three-axis AMR sensor changed accordingly. Whether a vehicle was present or not could be judged based on the AMR sensor＇ s output. The detector＇ s characteristic was tested. When the vehicle be- ing detected was moving over the detector along different directions （south-north, east-west）, the output changes were different. The results show that this detector can realize the function of vehicle detection.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2006年第6期587-590,共4页
Journal of University of Science and Technology Beijing
基金
国家自然科学基金资助项目(No.60574090)
