SBIR-STTR Award

This effort evaluates technical feasibility of an acceleration driven transformer type energy interruptor system for a guided missile. The interruptor insures that the guided missile has traveled a safe distance from launch platform before allowing the transfer of energy from the guided missile battery to the firing circuits in the s-a device. The device uses a piezoelectric accelerometer to sense the launch and flight accelerations of the missile and a microprocessor to perform double integration to calculate the distance traveled. A typical launch and flight pattern is assumed. The microprocessor is programmed to function as a key controller and it generates a unique signal for a transformer in the power circuit which is able to receive this unique signal and functions only after the unique signal is properly received. During the first phase of the program a breadboard model will be designed fabricated, and tested by computer simulation.

This is the second phase of the program for design and development of an energy interruptor which permits power to the firing circuit only after specific conditions are met. The interruptor uses a split-phase transformer as a basic energy interruption component. The input to the transformer is controlled by a control circuit comprising of an accelerometer, a/d convertor and a microprocessor which provides the transformer with a signal of predetermined nature. The system also consists of two electrochemical inertia switches which are driven by the post-launch acceleration. The system meets the requirements of mil-std-1316c. It is a design which combines the state-of-the-art electronics and mechanical locking features required by mil-std-1316c. During the second phase, the device will be designed, fabricated and tested for performance under the specification provided by naval weapon center. At the end of the program, five prototype units will be submitted to NWC for further testing.