A projectile includes a body (23), a payload (26) within the body (23), a target system (36) within the body (23) for affecting operation of the projectile, and an inductive interface which, as part of the target system (36), permits transfer of at least one of power and data between the target system (36) and an external setter system (24). The inductive interface includes a magnetic core (74) comprised of a compound of ferrite material and non-ferrite material and a coil (32) wrapped around the magnetic core (74).

Projectile inductive interface for the concurrent transfer of data and power

Fuze setting data for setting a projectile fuze may be transferred from a fuze setter to a fuze over a radiative data link. The radiative data link may comprise a signal transmission over one or more bands selected from a group consisting of the audio, ultrasonic, infrared, RF, visible and UV bands of the electromagnetic spectrum. In one embodiment, frequency shift keying is used to modulate a radio frequency carrier signal. Operational power for the fuze may be inductively transferred from the fuze setter to the fuze over a magnetic inductive link.

RF data communications link for setting electronic fuzes

According to an aspect of the invention, a tag system for facilitating a purchase of a sellable item is conceived, the tag system comprising an anti-theft tag and an NFC tag, wherein said NFC tag is arranged to support a payment transaction for purchasing the sellable item, and wherein the NFC tag is further arranged to deactivate the anti-theft tag when the payment transaction has been completed

Tag System, Sellable Item and Method for Facilitating the Purchase of a Sellable Item

A temperature controlling device contains a base including a top wall and a peripheral wall; the top wall including a first hole and a second hole; a temperature balance valve retained in the base and including a first inlet, a second inlet, a first outlet, and a second outlet; a lower ceramic member installed on the top wall and including a second cavity, a first orifice, and a second orifice to flow the hot water; an upper ceramic member fixed on a top end of the lower ceramic member and including a third cavity; the third cavity including a close face; a control shaft including an extension, a radial extending disc, and a forcing end disposed on a top end thereof to input a rotating power; a housing served to cover the base, between the housing and the base being defined a receiving space, and the housing includes an aperture.

Temperature controlling device

A power indicating setter system monitors the power level of a fuze setter coil of a fuze setter system for a gun operable to fire inductively-fuzed shells. The fuze setter system transmits a carrier signal that induces magnetic field power in the fuze setter coil. The strength of the magnetic field power correlates to reliability of the fuze setter system to transmit fuzing data to the shells. The fuze setter coil induces a signal in an adjacent induction element. Circuitry, coupled to the induction element, operates to compare the signal to a calibrated signal produced by the circuitry. The circuitry, by a power indicator, functions to indicate to an operator when the value of the signal is greater than the calibrated value. The power indicator indicates during operation of the gun, thereby informing the operator of the reliability of the fuze setter system to transmit fuzing data to the shells.

Power indicating setter system for inductively-fuzed munitions

Improved transmitter coil, improved fuze setter circuitry for adaptively tuning the fuze setter circuit for resonance and current difference circuitry for interpreting a fuze talkback message. The transmitter coil utilizes an “L” shaped coil cross section, with the wrapped coil portion being at right angles to the return coil portion, in order to increase the coupling efficiency between the fuze setter coil and the fuze receiver coil, as compared to the prior art “C” coil. The inventive “L” shaped cross section also eliminates counter magnetic field due to the return coil portion being at right angles to the wrapped coil portion. The fuze setter includes circuitry for adaptively tuning the resonant LC circuit for resonance by adjusting the capacitance in the LC circuit to maximize current in the LC circuit. The fuze setter utilizes a switched capacitor network circuit to tune the LC circuit for resonance. The fuze circuitry modulates its impedance, which results in changes in the current in the resonant LC circuit of the fuze setter which are detected and interpreted by the fuze setter circuit.

Transmitter coil, improved fuze setter circuitry for adaptively tuning the fuze setter circuit for resonance and current difference circuitry for interpreting a fuze talkback message

La bobine de transmission (24) utilise une section transversale en forme de "L ", la partie de bobine enveloppante (40) etant disposee a angle droit par rapport a la partie de bobine de retour (42), de maniere a augmenter l'efficacite de couplage entre la bobine du dispositif de parametrage de detonateur (10) et la bobine de reception (14) du detonateur (12), comparee a celle de la bobine en "C " de la technique anterieure; la section transversale en forme de " L " de l'invention elimine aussi le contrechamp magnetique du a la partie de bobine de retour disposee a angle droit par rapport a la partie de bobine enveloppante.

Bobine de transmission et dispositif destine a parametrer un detonateur de projectile

The transmitter coil (24) has a coil core formed of a winding including wrapped coil (40) and return coil (42) portions. The wrapped coil portion wraps around a section of the circumference of a projectile adjacent a receiver coil (14) contained in the projectile (16). The return coil portion extends from a first end to a second end 180[deg]apart of the wrapped coil portion and is formed at 90[deg] to the wrapped coil portion. The transmitter coil forms an L-shaped cross-section that eliminates counter magnetic field due to the return coil portion being at right angles to the wrapped coil portion. An independent claim is included for a projectile fuze setting system having a fuze setter (10) with a controller (20) connected to a transmitter (22) and a receiver (26), each of which are connected to a first coil that is part of a resonant LC circuit, that is tuned for resonance by adjusting its capacitance. The system also includes an electronic fuze (12) with a second coil that is arranged to be inductively coupled to the first coil to provide two-way communication with the controller of the fuze setter. The fuze setter may transmit using a pulse width modulated signal. The fuze may include a switch which adjusts its impedance so that it causes a current fluctuation in the first coil and the LC resonant circuit, that can be used to derive a pulse code modulated return (talkback) signal.

Transmitter coil for an inductive coupling arrangement for programming a fuze of a projectile has L-shaped cross-section that eliminates counter magnetic field due to return coil portion being at right angles to wrapped coil portion

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Transmitter coil, improved fuze setter circuitry for adaptively tuning the fuze setter circuit for resonance and current difference circuitry for interpreting a fuze talkback message

Bobine de transmission et dispositif destine a parametrer un detonateur de projectile

Transmitter coil for an inductive coupling arrangement for programming a fuze of a projectile has L-shaped cross-section that eliminates counter magnetic field due to return coil portion being at right angles to wrapped coil portion