摘要
介绍了Philips公司生产的薄膜磁阻传感器KMZ51的内部结构、测量原理,以及用于微弱磁场测量系统的软硬件设计方法。着重介绍了传感器内集成的触发线圈和补偿线圈驱动电路的设计方法,以及上位机软件的设计方法。触发线圈驱动电路基于可编程逻辑器件CPLD而设计;上位机软件采用虚拟仪器编程语言LabWindows/CVI编写。该系统可作为微弱磁场测量的基本系统,并可用于基于弱磁测量的一些应用领域。
Introduced the structure and principle of the thin-film magnetoresistive sensor KM731 manufactured by Philips, and gave out the software and hardware design method of using the sensor in a certain system for weak magnetic fields measurement. Especially introduced the design method of drive circuits for flip coil and compensation coil, and also introduced the software design on PC. Drive circuit for flip coil was based on CPLD;software design used LabWindows/CVI.The system can be used on some application fields based on weak magnetic fields measurement.
出处
《仪表技术与传感器》
CSCD
北大核心
2006年第10期30-31,34,共3页
Instrument Technique and Sensor
关键词
磁阻传感器
弱磁测量
薄膜
可编程逻辑器件
软件
magnetoresistive sensor
weak magnetic fields measurement
thin-film
CPLD
software
