基于低功耗器件的固态矢量地磁探测器

Solid Geomagnetic-field Vector Detector Based on Low-power Chip

针对目前磁场矢量测量动态响应慢、功耗过高等问题,进行研究基于MSP430单片机的高性能固态三轴磁探仪。磁敏器件采用动态响应快、抗干扰能力强的固态磁传感器SEN-L;数据采集模块采用低功耗PNI11096芯片,并通过SPI总线与单片机数据通信。同时,采用低功耗微电子芯片、合理的供电方式、时钟频率和软件低功耗等措施充分降低总功耗。实验表明:该系统具较好的低功耗和动态响应特性,以及良好磁探能力。

For requirement of dynamic magnetic-field vector measurement, solid three-axis magnet-field detector of high performance is developed based on MSP430 Single Chip Micyoco（SCM）. Solid magnetic sensor SEN-L of rapid dynamic response and good anti-jamming capability is applied to magnetosensitive device, and low-power chip PNI 11096 is applied to data collecting module which communicates with SCM over SPI. The power consumption can be reduced by using low power MPU, reasonable power supply, proper clock frequency and low power software. The experiment shows that the proposed magnetic-field detector features low power consumption, rapid dynamic response and high-precision detecting capability.