Wang Xiaofei, Sun Xianping, Zhao Xiuchao, Zhu Maohua, Ye Chaohui, Zhou Xin. Progress in Biomagnetic Signal Measurements with Ultra-Sensitive Atomic Magnetometers[J]. Chinese Journal of Lasers, 2018, 45(2): 207012
- Chinese Journal of Lasers
- Vol. 45, Issue 2, 207012 (2018)
Fig. 1. Schematic diagram of ultra-sensitive atomic magnetometer
Fig. 2. Schematic diagram of optical pumping
Fig. 3. Schematic diagram of NMOR
Fig. 4. Schematic diagram of nerve impulse generating conduction current and volume current (electric signals arise from the volume current, while magnetic signals arise from the conduction current)
Fig. 5. Magnetic field strength of biomagnetism
Fig. 6. Example of MCG waveform
Fig. 7. Schematic diagram of MCG and predicted MCG
Fig. 8. Schematic diagram of MEG
Fig. 9. Schematic diagram of ultra-sensitive atomic magnetometer detecting animal nerve impulses
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Table 1. Amplitudes of various biomagnetic features obtained by atomic magnetometer
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