摘要
磁性液位计具有广泛的应用领域。利用各向异性磁电阻(AMR)开关芯片设计了一种磁性液位计及其测试电路系统,利用微处理器的I/O口直接读取各个AMR传感器的输出电压,从而获得液位高度信息,利用USB转UART实现和计算机之间的液位数据通信。测试结果表明,所制作的液位计可以准确监测液位高度。
Magnetic liquid level gauge has great applications in many fields.In this work,a magnetic liquid level gauge and its measurement circuit system were designed.The output voltage was directly sampled by I/O port of the microprocessor and the liquid level was determined from the measured voltages.The liquid level data were transferred to computer by a USB to UART converter.The results show that the prepared liquid level gauge can monitor the liquid level.
作者
徐梓丞
彭斌
XU Zi-cheng;PENG Bin(Chongqing Foreign Language School,Chongqing 400039,China;University of Electronic Science and Technology of China,Chengdu 611731,China)
出处
《磁性材料及器件》
CAS
CSCD
2019年第1期49-50,54,共3页
Journal of Magnetic Materials and Devices
关键词
磁性液位计
AMR开关芯片
测试电路
magnetic liquid level gauge
anisotropic magnetoresistance switch sensor
measurement circuit
