Abstract: A method for generating a time-out signal for an unexploded munition. The method including: providing the munition with a power supply having a piezoelectric material for generating power from a vibration upon impact of the munition; and initiating detonation time-out circuitry to disable detonation of the munition after a predetermined time.

Abstract: A method for generating a time-out signal for an unexploded munition. The method including: providing the munition with a power supply having a piezoelectric material for generating power from a vibration upon impact of the munition; and initiating detonation time-out circuitry to disable detonation of the munition after a predetermined time.

Abstract: A method for detecting a target impact of the munition. The method including: providing the munition with a power supply having a piezoelectric material for generating power from an axial vibration induced by the munition; monitoring an output from the power supply; and determining if the munition has axially impacted a target based on the output.

Abstract: A munition including: a power supply having a piezoelectric material for generating power from a vibration upon impact of the munition; a processor operatively connected to the power supply for initiating detonation time-out circuitry to disable detonation of the munition after a predetermined time.

Abstract: A munition including: a power supply having a piezoelectric material for generating power from a vibration upon impact of the munition; a processor operatively connected to the power supply for initiating detonation time-out circuitry to disable detonation of the munition after a predetermined time.

Abstract: A method for onboard determination of a roll angle of a projectile. The method including: transmitting a polarized RF signal from a reference source, with a predetermined polarization plane; receiving the signal at a pair of polarized RF sensor cavities positioned symmetrical on the projectile with respect to a reference roll position on the projectile; measuring a difference between an output of the pair of polarized RF sensor cavities resulting from the received signal to determine zero output roll positions of the projectile; and comparing an output of the pair of polarized RF sensor cavities at each of the zero output positions to determine when the projectile is parallel to the predetermined polarization plane. The method can also include analyzing an output of at least one third sensor positioned on the projectile to determine whether the roll angle position of the projectile is up as compared to the horizon.

Abstract: A method for generating electrical power from an acceleration of an object is provided. The method including: vibrating a mass-spring unit upon an acceleration of an object; transmitting a force resulting from the acceleration from the mass-spring unit to the one or more piezoelectric elements; converting the vibration of the mass-spring unit to an electrical energy; and calculating at least one of the force and acceleration based on an output of the one or more piezoelectric elements.

Abstract: A method for detonating an unexploded munition including: firing one or more munitions into an area without detonation; providing the one or more munitions with a power supply having a piezoelectric material for generating power from an induced vibration; inducing a vibration in the power supply of the one or more munitions to generate power; and generating a detonation signal from the generated power to detonate the one or more munitions.

Abstract: A method for detonating an unexploded munition including: firing one or more munitions into an area without detonation; providing the one or more munitions with a power supply having a piezoelectric material for generating power from an induced vibration; inducing a vibration in the power supply of the one or more munitions to generate power; and generating a detonation signal from the generated power to detonate the one or more munitions.

Abstract: A method for generating electrical power from an acceleration of an object is provided. The method including: vibrating a mass-spring unit upon an acceleration of an object; transmitting a force resulting from the acceleration from the mass-spring unit to the one or more piezoelectric elements; converting the vibration of the mass-spring unit to an electrical energy; and calculating at least one of the force and acceleration based on an output of the one or more piezoelectric elements.

Abstract: A method for onboard determination of a roll angle of a projectile. The method including: transmitting a polarized RF signal from a reference source, with a predetermined polarization plane; receiving the signal at a pair of polarized RF sensor cavities positioned symmetrical on the projectile with respect to a reference roll position on the projectile; measuring a difference between an output of the pair of polarized RF sensor cavities resulting from the received signal to determine zero output roll positions of the projectile; and comparing an output of the pair of polarized RF sensor cavities at each of the zero output positions to determine when the projectile is parallel to the predetermined polarization plane. The method can also include analyzing an output of at least one third sensor positioned on the projectile to determine whether the roll angle position of the projectile is up as compared to the horizon.

Abstract: A method for onboard determination of a roll angle of a projectile.

Abstract: A method for onboard determination of a roll angle of a projectile.

Abstract: A method is provided for recovering and/or exploded an unexploded munition. The method including: providing the munition with a power supply having a piezoelectric material for generating power from an induced vibration; inducing a vibration; monitoring an output from the power supply after the power supply has stopped generating power from a firing of the munition; and generating a beacon signal or detonation signal upon the detection of the output.

Abstract: A method is provided for recovering and/or exploded an unexploded munition. The method including: providing the munition with a power supply having a piezoelectric material for generating power from an induced vibration; inducing a vibration; monitoring an output from the power supply after the power supply has stopped generating power from a firing of the munition; and generating a beacon signal or detonation signal upon the detection of the output.

Abstract: A method is provided for detecting a target impact of a munition. The method including: providing the munition with a power supply having a piezoelectric material for generating power from a vibration induced by the munition; monitoring an output from the power supply; and determining whether the output of power from the power supply has dropped below a predetermined threshold.

Abstract: A method for detecting a target impact of the munition. The method including: providing the munition with a power supply having a piezoelectric material for generating power from an axial vibration induced by the munition; monitoring an output from the power supply; and determining if the munition has axially impacted a target based on the output.

Abstract: A method is provided for detecting a target impact of a munition. The method including: providing the munition with a power supply having a piezoelectric material for generating power from a vibration induced by the munition; monitoring an output from the power supply; and determining whether the output of power from the power supply has dropped below a predetermined threshold.

Abstract: A method for onboard measurement of a deviation in orientation of an object from a desired orientation of the object. The method including: transmitting a polarized RF signal from a reference source, with a predetermined polarization plane: receiving the signal at a pair of polarized RF sensor cavities positioned symmetrical on the object with respect to the predetermined polarization plane: analyzing an output of the pair of polarized RF sensor cavities resulting from the received signal: and determining the deviation in orientation of the object relative to the predetermined plane based on the analysis. The method can further include controlling the object based on the determined deviation in orientation.

Abstract: A method is provided for recovering and/or exploded an unexploded munition. The method including: providing the munition with a power supply having a piezoelectric material for generating power from an induced vibration; inducing a vibration; monitoring an output from the power supply after the power supply has stopped generating power from a firing of the munition; and generating a beacon signal or detonation signal upon the detection of the output.