A MEMS Safe and Arm Device for Spin Stabilized Ammunition Fuze
In order to realize the miniaturization of fuze safety mechanism, a novel MEMS safe and arm is proposed through concept, analysis, design and initial prototyping. A microscale inertial mechanical logic for mechanical safe and arm functions in the form of sliders, springs, and locks that interact on a planar substrate in response to setback acceleration and centrifugal force to thereby arm the fuze, and the bulk fabrication process were analyzed. The safety criteria, design principles, modeling and simulation methods for arming slider, setback lock, and arming lock are introduced. Air gun testing demonstrates the feasibility of MEMS safe and arm device and the validity of the design method.
W. Wang et al., "A MEMS Safe and Arm Device for Spin Stabilized Ammunition Fuze", Advanced Materials Research, Vols. 403-408, pp. 4593-4597, 2012