ELECTROMETER WITH RADIO FREQUENCY (RF) TUNING WAVEGUIDE

    公开(公告)号:US20240353462A1

    公开(公告)日:2024-10-24

    申请号:US18465058

    申请日:2023-09-11

    摘要: One embodiment includes an electrometer system. The system includes a sensor cell comprising alkali metal atoms within and an optical beam system configured to provide at least one optical beam through the sensor cell to provide a Rydberg energy state of the alkali metal atoms, the at least one optical beam exiting the sensor cell as a detection beam. The system also includes a signal generator configured to generate a radio frequency (RF) tuning signal. The system also includes a waveguide extending along a length of the sensor cell, the waveguide being configured to propagate the RF tuning signal in the sensor cell to tune at least one energy state of the alkali metal atoms relative to the Rydberg energy state. The system further includes a detection system configured to monitor the detection beam to detect an external signal based on monitoring the detection beam.

    Compact antenna system for munition

    公开(公告)号:US12107326B2

    公开(公告)日:2024-10-01

    申请号:US17825389

    申请日:2022-05-26

    摘要: A compact munition antenna system that includes a curvilinear transmit antenna on a top and bottom of a ring-shaped substrate, and a curvilinear receive antenna on the top and bottom of the substrate. The transmit antenna and receive antenna are positioned opposite one another on the substrate, and are separated by a pair of isolation barriers to reduce coupling of the two antennas. The munition antenna system may be mounted on a metal cylindrical portion of a guidance system in a nose section of the munition, using a vertical convex surface of the cylindrical portion and a horizontal surface of the munition as a reflector for improving antenna performance.

    Axial flux machine for use with projectiles

    公开(公告)号:US12055375B2

    公开(公告)日:2024-08-06

    申请号:US18097666

    申请日:2023-01-17

    IPC分类号: F42C11/04 F42C11/00

    CPC分类号: F42C11/008

    摘要: A powered projectile having a nose portion, a body portion, a tail portion, and a central axis. In various embodiments a collar is rotatably mounted to a control support portion with a plurality of aerodynamic surfaces thereon for despinning the collar. An alternator configured as an axial flux machine with a stator arranged can be axially adjacent to one or more rotors, the stator including a plurality of windings and the one or more rotors each including a plurality of permanent magnets arranged about the face of the respective one or more rotor. In various embodiments the projectile includes an assembly of projectile control circuitry. In one or more embodiments, upon relative motion of the rotor with respect to the stator, magnetic flux from the magnets interacts with the windings of the stator and passes through an air gap between the one or more rotors and stator.

    POWER LIMITER WITH WAVEGUIDE HAVING AN LaCoO3 FILM

    公开(公告)号:US20240209491A1

    公开(公告)日:2024-06-27

    申请号:US18597354

    申请日:2024-03-06

    摘要: A power limiter for limiting power provided to an electronic device. The power limiter includes a waveguide that receives an input signal to be sent to the electronic device, an LaCoO3 film formed to one side of the waveguide, an LaCoO3 film formed to an opposite side of the waveguide, a grounded element formed to one of the LaCoO3 films and a grounded element formed to the other LaCoO3 film. When the heat level in the LaCoO3 films is below a predetermined threshold, the LaCoO3 films are an insulator and the input signal propagates through the waveguide to the electronic device, and when the heat level in the LaCoO3 films goes above the threshold, the LaCoO3 films become conductive, and the input signal is shunted through the LaCoO3 films to the grounded elements.

    Ultrasonic material placement and compaction device with material passing through the ultrasonic horn element

    公开(公告)号:US11964432B2

    公开(公告)日:2024-04-23

    申请号:US17400748

    申请日:2021-08-12

    发明人: Vernon M. Benson

    摘要: A continuous filament additive manufacturing machine for building a part by laying down a continuous mono-filament or composite filament material layer by layer on a tool or substrate. The machine includes a system, such as a robot, operable to move in three degrees of freedom, and a placement module coupled to the system and being configured to deposit the continuous filament material. The placement module includes a guide for guiding the material to the part and an ultrasonic compaction device for compacting the material as it is being deposited from the placement module. The compaction device includes an ultrasonic horn having at least one guide hole through which the material passes before it is laid down and compacted. The ultrasonic horn is ultrasonically vibrated to melt or flow the material and cause the material to fuse and be compacted to the tool or substrate.

    Ultrasonic device for compaction allowing coordinated actuation and motion of multiple ultrasonic compaction horns

    公开(公告)号:US11958241B2

    公开(公告)日:2024-04-16

    申请号:US17400701

    申请日:2021-08-12

    发明人: Vernon M. Benson

    摘要: A continuous filament additive manufacturing machine for building a part by laying down a continuous mono-filament or composite filament material layer by layer on a tool or substrate. The machine includes a system operable to move in at least three degrees of freedom, and a placement module coupled to the system and being configured to deposit the continuous filament material. The placement module includes a guide for guiding the material to the part and an ultrasonic compaction device for compacting the material as it is being deposited from the placement module. The compaction device includes an ultrasonic driver, an attachment member and a plurality of ultrasonic horns independently coupled to the attachment member and being movable independent of each other. The plurality of ultrasonic horns are ultrasonically vibrated to melt or flow the material and cause the material to fuse and be compacted to the tool or substrate.

    Output impedance and load independent latch-off timer for voltage-limit mode protection

    公开(公告)号:US11949224B2

    公开(公告)日:2024-04-02

    申请号:US17704089

    申请日:2022-03-25

    IPC分类号: H02H3/20 H02H1/00

    CPC分类号: H02H3/20 H02H1/0007

    摘要: One example includes a power supply system. The system includes a voltage-limit power regulator to generate an output voltage and an instantaneous overvoltage sensor configured to detect an overvoltage condition associated with the output voltage. The system further includes an overvoltage latch-off timer system configured to initiate a latch-off timer in response to detecting the overvoltage condition. The latch-off timer can be uninterrupted by an amplitude of the output voltage. The overvoltage latch-off timer system can further be configured to detect a persistent overvoltage fault in response to detecting the overvoltage condition after expiration of the latch-off timer. The overvoltage latch-off timer system can be configured to generate a fault signal to disable the voltage-limit power regulator in response to detecting the persistent overvoltage fault.