Topological acoustic non-reciprocal device supporting posture one-way transmission and regulation and control method and application of topological acoustic non-reciprocal device

The invention discloses a topological acoustic non-reciprocal device supporting posture one-way transmission and a regulation and control method and application thereof, the topological acoustic non-reciprocal device comprises a topological phononic crystal, the topological phononic crystal comprise...

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Hauptverfasser: DING YUJIANG, CHENG JIANCHUN, LIANG BIN, WANG YANQIU
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention discloses a topological acoustic non-reciprocal device supporting posture one-way transmission and a regulation and control method and application thereof, the topological acoustic non-reciprocal device comprises a topological phononic crystal, the topological phononic crystal comprises orthohexagonal acoustic resonant cavities arranged according to a honeycomb lattice period, and the inner walls of the acoustic resonant cavities are circular; the acoustic resonant cavities are connected through waveguide tubes to form an array, and the acoustic resonant cavity-waveguide tube array forms an acoustic valley topological insulator; every two adjacent acoustic resonant cavities and the waveguide tubes connected around the acoustic resonant cavities are rhombic photonic crystal unit cells, and rotors with different diameters are arranged in the two acoustic resonant cavities of the photonic crystal unit cells so as to break the space inversion symmetry of the system. Each rotor is driven to rotate th