【摘要】 本文着重对研制的感应式磁传感器的本底噪声和灵敏度特性进行测试研究,在平行噪声测试方法（NPI）基础上设计了针对本研究的磁传感器噪声测试方法,测试结果表明:MC-30的噪声水平1Hz时为0.3pT/Hz^1/2,10Hz时为0.03pT/Hz^1/2,100Hz时为10fT/Hz^1/2,1kHz时为3fT/Hz^1/2,灵敏度为215mV/nT;MC-50的噪声水平0.01Hz时为10pT/Hz^1/2,1Hz时为0.05pT/Hz^1/2,10Hz时为10fT/Hz^1/2,100 Hz时为0.5fT/Hz^1/2,灵敏度为1359mV/nT.除此之外,通过野外试验对比及工程应用验证了MC-30和MC-50具备良好的测量精度及野外工作性能,能够满足实际电磁勘探任务的需要.更多还原

【Abstract】 In this paper,the noise floor and sensitivity characteristics of the induction magnetometer are studied.Based on the parallel noise test method（NPI）,the induction magnetometer noise test method for this study is designed.Test results show that the MC-30 noise level is 0.3 nT/Hz^1/2@1 Hz,0.03 pT/Hz^1/2@10 Hz,10 fT/Hz^1/2@100 Hz,3 fT/Hz^1/2@1 kHz,sensitivity is 215 mV/nT@1 Hz,and the MC-50 noise level is 10 pT/Hz^1/2@0.01 Hz,0.05 pT/Hz^1/2@1 Hz,10 fT/Hz^1/2@10 Hz,0.5 fT/Hz^1/2@100 Hz,sensitivity is 1359 mV/nT@1 Hz.Through comparison of field tests and engineering applications,it is verified that MC-30 and MC-50 have good measurement accuracy and field work capability and can meet the needs of actual electromagnetic exploration tasks.更多还原