CAJ | 학술논문

设计了适于海洋试验条件下的以磁阻式传感器为核心的全信息磁场测量系统，并给出了完善的设计方案和实现方法。使用MSP430F5438控制多路A/D同步采集磁阻式传感器的三分量和两轴倾角传感器的信号，并将采集到的数据通过串口发送至 SD 卡存储模块，给出了关键电路的实现方法和系统软件设计流程。经过试验验证，系统单轴磁场精度在5 nT以内。长时间的湖试结果表明，该系统已成功解决了水下环境下磁场测量系统设计中低功耗、高精度和大容量存储等关键技术，可以应用于水下环境全信息磁场测量。
설계료괄우해양시험조건하적이자조식전감기위핵심적전신식자장측량계통，병급출료완선적설계방안화실현방법。사용MSP430F5438공제다로A/D동보채집자조식전감기적삼분량화량축경각전감기적신호，병장채집도적수거통과천구발송지 SD 잡존저모괴，급출료관건전로적실현방법화계통연건설계류정。경과시험험증，계통단축자장정도재5 nT이내。장시간적호시결과표명，해계통이성공해결료수하배경하자장측량계통설계중저공모、고정도화대용량존저등관건기술，가이응용우수하배경전신식자장측량。
A measuring system of magnetic field with full information is designed based on the magnetoresistive mag-netometers of HMC1001 & HMC1002 type. It is adapted to the ocean test environment. The design project and imple-mentation are offered. Signals from magnetic sensor′s s three components and from the two-axis inclinometer are syn-chronously sampled through the MSP430F5438 controlled multicenter analog to digital device with high resolution. The implementation of the key circuit and the design flow chart of the system software are presented. The data sampled by the system is stored in the mass storage SD card module. Testing results show that the noise of the system is within 5 nT, and the key techniques about low power, high resolution, and mass storage have been solved in this design. The present measuring system can be applied to measurement of underwater magnetic field with full information.