Abstract: Projectile fuze setback generator power source apparatuses and methods of use and manufacture are disclosed. An explosive projectile contains a fuze with a setback generator and associated fuze electronics. Upon initiation of projectile launch, the setback generator produces a voltage for use by the fuze electronics during flight. The setback generator includes a magnet maintained in place within a surrounding coil by a fastener. When a projectile is fired, rapid acceleration thereof causes the fastener to break and the magnet to be displaced longitudinally within the surrounding coil, which decreases the magnetic field and induces a current in the surrounding coil. The induced current produces a voltage that is stored in a capacitor operably coupled to the setback generators which then is used to power the fuze electronics during flight.

Abstract: Projectile fuze setback generator power source apparatuses and methods of use and manufacture are disclosed. An explosive projectile contains a fuze with a setback generator and associated fuze electronics. Upon initiation of projectile launch, the setback generator produces a voltage for use by the fuze electronics during flight. The setback generator includes a magnet maintained in place within a surrounding coil by a fastener. When a projectile is fired, rapid acceleration thereof causes the fastener to break and the magnet to be displaced longitudinally within the surrounding coil, which decreases the magnetic field and induces a current in the surrounding coil. The induced current produces a voltage that is stored in a capacitor operably coupled to the setback generators which then is used to power the fuze electronics during flight.

Abstract: A magnetometer transducer sampling front-end amplifier (stand alone option) and processor including a transducer, a passive low pass filter, a differential or single-ended amplifier, an output capacitor and discharge control, a voltage comparator, a duty cycle control logic block, a sampling clock and PWM logic block, a gated current source, a system clock and decimators block, and an interval counting detection processor with a target detection output to a system controller.

Abstract: The inventive environment sensor apparatus includes an electrostatic sensor carried by the projectile. The electrostatic sensor has first and second electrical conducting areas separated by a dielectric material to form two plates of a capacitor. The first electrical conducting area is conductively connected to a current-to-voltage converter and the second electrical conducting area is conductively connected to the outside projectile body surface. A time changing electric field surrounding the projectile causes a time changing current to flow within the electrostatic sensor, which is converted to a time changing voltage by the current-to-voltage converter. A threshold detector device is conductively connected to an output of the current-to-voltage converter and provides a voltage signal to the safe and arm mechanism when the time changing voltage signal from the current-to-voltage converter exceeds a predetermined level, to indicate that a change has occurred in the sensed muzzle exit environment.

Abstract: A radome probe apparatus for use with an electrostatic proximity sensor is disclosed. The apparatus comprises a radome nose cone probe connected to a projectile and having an inner surface. The nose cone is made of a dielectric material. Single or multiple electrically conducting areas are connected to the inner surface of the nose cone. The conducting areas are dielectrically isolated. Electronics are utilized to sense the time rate of change voltage or current between the areas due to the intrinsic electrostatic charge on a target aircraft.

Abstract: A multifunctional magnetic fuze is disclosed. The sensor includes an apparatus and method for counting each rotation of a projectile after firing from a weapon. A signal is generated which indicates the rotations of the projectile and a counter counts the turns so that the projectile may detonate at a predetermined nominal number of turns. The turns count may also be used to calculate spin rate and muzzle velocity so that the nominal turns count may be adjusted based on actual velocity. The fuze also may include a timer for counting a time to burst of a projectile. The turns count and/or the times count may be utilized to provide accurate detonation.

Abstract: An ultrasonic line sensor including an elongated transmission line for longitudinal pressure waves, which changes transmission characteristics with change in the length of the line due to transverse mechanical loading, and also including apparatus for energizing the line with longitudinal pressure waves at a long term frequency which establishes a standing wave in the line, and for responding to short-term changes in the natural frequency of the line.

Abstract: An electromagnetic bipolar loud speaker of the planar type utilizing a vibratable diaphragm having conductors positioned thereon and uniformly distributed over the vibratable area of the diaphragm to interact with a unidirectional, homogeneous magnetic field generated by a coil surrounding the diaphragm. The loud speaker may be made of a number of diaphragms with different sized vibratable areas and with the same conductor orientation thereon with respect to the supporting frame and energizing magnetic field to cover the wide range of frequency responses.