Abstract: A magnetic flux switch having a substrate and an elongated rod having a first end attached to the substrate and a magnetic material attached to the second end. An electrostatic comb drive pivots the rod between a first and second pivotal position in dependence upon the input signal for the comb drive. In its first position the magnetic material is positioned closely adjacent a magnetic flux sensor on the substrate so that flux flow through the rod flows through the sensor which then generates an output signal. Conversely, with the rod in its second position, the magnetic material is spaced from the sensor so that flux does not flow through the magnetic flux sensor.

Abstract: A microelectromechanical system (MEMS) device for sensing a magnetic field comprising: a base; a cantilever attached to the base structure at a first end and movable at a second end, the second end oscillating at a predetermined frequency upon application of a current; a magnetic sensor attached to the movable second end; at least one flux concentrator mounted on the base adapted to transfer magnetic flux to the sensor; whereby when the current is applied, the oscillation of the cantilever causes the sensor to oscillate between the lines of flux transferred from the at least one flux concentrator resulting in the shift of the frequency of the sensed magnetic field to the predetermined frequency. The invention further comprises a method of making the MEMS device.

Abstract: A lead acid battery life extender for the battery of an internal combustion engine includes a multivibrator circuit electrically connected across the terminals of the battery for delivering high frequency electrical pulses to the battery, thereby removing lead sulfate from the plates of the battery and increasing the life of the battery, and a thermoelectric power source for providing electrical energy to the multivibrator circuit, thermally coupled to heat emitted from the internal combustion engine and electrically connected to the multivibrator circuit.

Abstract: An environmental charging and detonation system for submunitions has an arnator in which a firing pin or rotor shaft is used for safing and arming, stab detonation, as well as the rotor for the alternator. A ram air actuated ribbon is deployed during submunition flight for arming the submunition and spinning the rotor of the alternator. The alternator generates energy that is stored in a charging circuit. A multidirection impact detection switch triggers a firing circuit that discharges the energy stored in the charging circuit through an electronic detonator. The electronic detonator will reliably detonate the submunition regardless of the submunition impact angle with a target.

Abstract: An annular alternator for use with a fuze ogive having an annular rotor w alternating magnetic poles and an annular stator coil enclosed by a highly magnetically permeable toroid having spaced interdigitating poles on the surface adjacent the magnetic poles.