This paper constructs a magnetic sensing neuron and two novel multimodal sensing neuron models. By embedding Josephson junctions in FitzHugh-Nagumo(FHN) circuit, magnetic sensing neurons can be constructed. Light-magnetic sensing neuron is realized by coupling magnetic sensing neurons with phototube, and acoustic-magnetic sensing is realized by coupling magnetic sensing neurons with piezoelectric ceramic. Firstly, based on the two-parameter bifurcation analysis, we systematically reveal the rich discharge pattern transitions of these three neurons, especially the ’ period-adding bifurcation ’ sequences with different structures. It is found that the amplitude and frequency of the signal generated by the piezoelectric ceramic have a significant disturbance effect on the discharge mode of the neuron, and the high amplitude will also inhibit the synchronization of the coupled neurons. The photocurrent has both disturbance and regulation on the discharge mode of neurons. The increase of light saturation current inhibits the synchronization of the coupled neurons. Secondly, through the analysis of Hamilton energy and synchronization, we find We find that the Hamilton energy controls the discharge mode of the system and the relationship between energy difference and synchronization. Finally, PSpice circuit simulation and hardware experiments successfully verify the correctness and physical feasibility of the theoretical model.
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