A bistable MEMS security device with an
inertia delay function is integrally of a lamination structure, a cover plate layer, a separation layer and a
detonation layer are sequentially arranged from top to bottom, and the adjacent
layers are connected in a
metal-
metal bonding manner. The separation layer is connected with Y-shaped
optical fiber in an adhesion bonding manner. The separation layer and the Y-shaped
optical fiber are located on the same plane, and the Y-shaped
optical fiber is used for achieving monitoring of the inner state of the separation layer. A large-
mass separation plate mechanism is designed in the bistable MEMS security device, and the action effect of
inertia force in the MEMS security device is improved; considering the gun
muzzle emitting safety distance, an
inertia delay mechanism composed of a gear-rack-plane
torsion spring mechanism is designed, and safety during weapon launching is improved; a bistable triggered electric heat driving mechanism is designed,and multi-
physics field security releasing redundancy design is achieved; an optical
fiber sensor is designed, and real-time monitoring of the interior motion state of the mechanism is achieved; and the characteristics of inertia
delay, bistable triggering, state self-sustaining, state self-checking, overload resisting and the like are achieved.