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Signal Characteristic Study & Amplifier Design of Magnetic Senor based on Proton Zeeman Effect

Chao TanChao SuLi FangBing-hua Jiang

College of Electrical Engineering & New Energy, China Three Gorges University

摘要:The paper analyzes the two kinds magnetic field sensor measuring principle based nuclear Zeeman effect, the signal characteristics are analyzed according to the formula of the sensor output signal, the curve of the sensor maximum output signal VS the earth magnetic field obtained by using the method of combination numerical and experimental. With constant output signal amplitude as a criterion, the amplifier which satisfies the characteristic of the sensor output was designed. To further improve the SNR, program controllable self-tracking band pass filter(PCSTBF) was designed based on the switch capacitor filter and the FFT. The results showed that: the SNR was increased by using the amplifier which contains the PCSTBF, and the bandwidth of the output signal was not reduced.
会议名称:

2014 2nd Asian Pacific Conference on Mechatronics and Control Engineering(APCMCE 2014)

会议时间:

2014-08-08

会议地点:

Hong Kong,China

  • 专辑:

    理工C(机电航空交通水利建筑能源); 电子技术及信息科学

  • 专题:

    电力工业; 自动化技术

  • 分类号:

    TM937;TP212

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