质子磁力仪梯度容限增强技术

Technology for enhancing gradient tolerate of proton magnetometer

为解决传统质子磁力仪梯度容限偏低,在地磁场不均匀地区磁测精度得不到保证这一难题,笔者深入研究了改进的信号测周方法提高质子磁力仪梯度容限的可行性,并筛选功能强大的32位嵌入式ARM芯片作为主控单元,研制出新型高精度质子磁力仪。经与CZM-5质子磁力仪对比测试,证明新型高精度质子磁力仪的梯度容限指标不低于8 000 n T/m,满足课题任务书设计要求,改进的信号测周方法可显著地提高传统质子磁力仪的梯度容限这一重要技术指标。

Because the gradient tolerate of the traditional proton magnetometer on the low side,so that cannot be guaranteed accuracy of magnetic survey in the region of geomagnetic field is inhomogeneous to resolve this difficulty,this paper deeply research the feasibility of enhancing gradient tolerate of the proton magnetometer by improved method of measure signal cycle. And filtrate powerful functions 32 bit embedded ARM IC as main control unit,developed new type high precision proton magnetometer. Through comparison test with CZM-5 proton magnetometer,prove the index of gradient tolerate of the new type high precision proton magnetometer not lower than 8000 n T / m,satisfy design requirements of the project assignment book. Conclusion is that improved method of measure signal cycle can notably enhance gradient tolerate of the traditional proton magnetometer that is important technology index.