Abstract: An atomic inertial interferometer comprises a laser that emits a CW beam; a modulator that modulates the CW beam; a filter and delay mechanism that receives the modulated beam, and includes a first pathway and a second pathway longer than the first pathway; a comb generator that receives the modulated beam, and produces a frequency comb; and a comb drive coupled to the comb generator to generate a multiple of a comb repetition rate, the comb drive including a HF source coupled to a bandpass filter. A vacuum cell holds a sample of cold atoms. The frequency comb counter-propagates with respect to the modulated beam to provide velocity slicing of the cold atoms such that a given temperature distribution of the cold atoms is sliced into a plurality of narrow temperature distributions that are probed individually and in parallel, to extract an interference signal from the narrow temperature distributions.

Abstract: Systems and methods for using a non-stick conductive material to automate tool touch-off in an additive manufacturing process are provided. A substrate comprises a first conductive layer, an intermediate binder layer, and a second non-stick conductive layer. The non-stick conductive layer may comprise perfluoroalkoxy alkanes and carbon nanotubes. An electrical connection may be made between the first conductive layer and the second non-stick conductive layer. When used with an additive manufacturing device, when the nozzle of the device contacts the substrate, a circuit may close resulting in a detectable voltage drop. When the voltage drop is detected, a reference point for the additive manufacturing device may be set.

Abstract: Techniques are provided for implementing and using a travelling wave resonator, comprising planar optical waveguide including at least two stacked cores, to diminish Kerr effect in the travelling wave resonator. The travelling wave resonator may be used in a resonator optical gyroscope.

Abstract: Enhanced resolution for a real-time clock is implemented, which includes a real-time clock configured to operate at a first time resolution, at least one processing unit configured to operate at a second time resolution, wherein the second time resolution has a higher frequency than the first time resolution, a memory for storing data at a location including data from the real-time clock and the at least one processing unit, an interrupt configured to load information into the memory at the location using the at least one processing unit, the interrupt further configured to operate at a frequency associated with the second time resolution, a timing service configured to read information from the memory at the location, the timing service configured to operate at the second time resolution, and a calibration module configured to re-calibrate the real-time clock.

Abstract: Devices, systems, and methods for alarm system states are described herein. In some examples, one or more embodiments include a mobile device comprising a memory and a processor to execute instructions stored in the memory to receive a notification from a remote computing device that an event device in an alarm system has detected an event, where in response to the alarm system detecting the event, the alarm system is in a conditional state, acknowledge the event to cause the alarm system to remain in the conditional state, and transmit a signal to the remote computing device indicating whether the event is a true event or a false event, the mobile device further including a user interface configured to display the notification.

Abstract: In some embodiments, a system includes a laser that generates an optical signal and a resonator that receives the optical signal. The resonator includes an optical resonator cavity comprising a first and second end, wherein the optical signal propagates at a resonant frequency; a first optical anti-resonator terminating the first end and having a first stopband; and a second optical anti-resonator terminating the second end and having a second stopband. The system includes a detector that generates an electrical signal from a modified resonator output of the resonator; and Pound-Drever-Hall servo circuitry configured to generate control signals for controlling a frequency of the optical signal generated by the laser or phase modulation devices attached to the optical resonator cavity or the first or second optical anti-resonator, wherein each phase modulation changes a length of at least one of the optical resonator cavity or the first or second optical anti-resonator.

Abstract: A method is disclosed that includes continuously obtaining air purity and floor particle data from one or more sensors and/or one or more cameras of a robotic device among a fleet of robotic devices; determining whether air impurities around the robotic device exceed an air purity threshold based on air purity feedback from the one or more sensors of the robotic device; based on the determination whether air impurities around the robotic device exceed the air purity threshold, modifying an air purification mode of the robotic device; determining whether floor particles around the robotic device exceed a floor particle threshold based on floor particle feedback from the one or more sensors of the robotic device; and based on the determination whether floor particles around the robotic device exceed the floor particle threshold, modifying a floor cleaning mode of the robotic device.

Abstract: A system configured to be installed in an air flow channel includes a metal surface configured to convert liquid-phase contamination in the air flow channel of a vehicle to vapor-phase contamination; a sensor configured to sense the vapor-phase contamination in the air flow channel; and communication circuitry configured to transmit data indicating sensed levels of the vapor-phase contamination.

Abstract: A method of process control in a PCS. The PCS provides host controllers coupled together, I/O devices, field devices, and processing equipment, configured together to run a process, the plurality of host controllers having stored a single online orchestrator program for coordinating a shared and synchronized database for the host controllers, wherein the online orchestrator program uses and tracks currently available host controllers and selected control programs for controlling the process. The PCS also includes an offline orchestrator. The orchestrator is run on the currently available host controllers that shares and synchronizes the initial shared database version to the currently available host controllers. A selected host controller responsive to an event broadcasts updated shared database version to the currently available host controllers.

Abstract: Systems and method for the delivery of a pump laser using optical diffraction are described herein. In certain embodiments, a system includes a substrate and a waveguide layer formed on the substrate. The waveguide layer includes a first waveguide of a first material configured to receive a probe laser for propagating within the first waveguide. The waveguide layer additionally includes a second waveguide configured to receive a pump laser for propagating within the second waveguide. Further, the waveguide layer includes one or more diffractors configured to direct a portion of the pump laser out of the second waveguide and through the first waveguide.

Abstract: Disclosed are methods and systems for providing millimeter wave assisted vehicle navigation. A method may include generating a frequency-modulated continuous wave (FMCW) signal, transmitting the FMCW signal as radio waves by a plurality of radar transmitters each having a beam direction, receiving reflected radio signals by a corresponding plurality of receivers, and determining individual beam velocities of the vehicle in each of the beam directions. The method may further include combining the individual beam velocities; generating a body velocity vector based on the combined individual beam velocities; combining input from the radar signal processor and a previous known vehicle position; and based on the combined input, providing real-time position and velocity information for the vehicle.

Abstract: A method of testing a sensing device with a sensing mass includes accelerating the sensing device along a circular path about a central axis. The sensing mass of the sensing device may be movable relative to the central axis. The method includes determining a position of the sensing mass of the sensing device via a sensor and shifting the sensing device radially relative to the central axis based at least in part on the position of the sensing mass during acceleration.

Abstract: Devices, systems, and methods for providing fire events pattern analysis and cross-building data analytics are described herein. One fire system maintenance system, includes a number of fire system detectors, a fire system control panel, and a gateway device all positioned within the facility, the gateway device having instructions to: collect fire system device health data associated with one or more fire or smoke detector devices and to send this fire system device health data to a remote device, the remote device having instructions to: analyze the collected fire system device health data to determine an event type for each device health event recorded in the collected data, predict future device health events, categorize the device health events based on their determined event type, and prioritize the categorized device health events based on the quantity of events categorized in each event type.

Abstract: Disclosed are methods, systems, and non-transitory computer-readable media for transmitting obstacle information to one or more operator displays associated with an aircraft. For instance, the method may include obtaining aircraft flight information including a current position and altitude; retrieving obstacle information for a flight area; scanning the flight area with environment sensors to identify observed obstacles and generate observed obstacle information.

Abstract: A processor-implemented method for automatically creating aircraft maintenance records and work logs during aircraft maintenance operations is disclosed. The method comprises retrieving, using a processor, fault data, testing data, maintenance data, and status data regarding line replaceable units (LRUs) on an aircraft via a central maintenance computer (CMC) on the aircraft; automatically collecting from a remote terminal on the aircraft data regarding maintenance operations performed using the remote terminal; automatically recording, by the processor, in a maintenance database the fault data, testing data, maintenance data, status data, and data regarding maintenance operations performed using the remote terminal; and automatically populating, by the processor using data in the maintenance database, information in a plurality of fields in a maintenance work log.

Abstract: A hydrogen peroxide sterilization device for sterilizing a medical device, the hydrogen peroxide sterilization device including a hermetic outer container, a hydrogen peroxide pouch, and a hydrogen peroxide solution in the solution chamber. The hermetic outer container includes a sterilization enclosure configured to receive the medical device. The hydrogen peroxide pouch includes a permeable membrane enclosing a solution chamber and is configured to be positioned in the sterilization enclosure of the outer container. The permeable membrane is configured to allow hydrogen peroxide vapor to diffuse from the solution chamber through the permeable membrane into the sterilization enclosure.

Abstract: Methods, apparatuses, and systems for providing a sealed glass enclosure for a gas detecting apparatus are provided. An example method may include: preparing a controller component that is operatively coupled to a sensing element, wherein the controller component comprises at least one electrical connector; joining a first glass component and a second glass component to form a unitary body such that the at least one electrical connector is disposed therebetween; preparing a glass tube comprising an open surface; disposing the controller component and sensing element within the glass tube; positioning the unitary body comprising the first glass component and the second glass component adjacent the open surface of the glass tube; and encapsulating the unitary body to the glass tube to form the sealed glass enclosure.

Abstract: A tool for feeding material into a mill having a roller and forming a nip gap. The tool broadly comprises a baseplate, a guide plate, and a ram. The baseplate is configured to be positioned on the mill over the roller and forms a slot. The guide plate is configured to be positioned in the slot of the baseplate near the nip gap. The guide plate forms a chute for feeding the material into the nip gap. The ram is configured to be inserted into the chute to urge the material into the nip gap while preventing a user's fingers and other foreign objects from nearing the nip gap through the chute.

Abstract: A photonics gyroscope comprises a laser and a common intensity modulation unit that outputs an intensity modulated beam, split into a CCW beam having a first power level and a CW beam having a second power level. A first phase modulator (PA) receives the CCW beam, and a second PA receives the CW beam. A variable optical attenuator (VOA) is coupled to the first or second PA. The CCW beam is coupled into a resonator and the CW beam is coupled into the resonator. A first detector receives the CCW beam and a second detector receives the CW beam from the resonator. A CCW control loop locks the CCW beam, and a CW control loop locks the CW beam, to resonance peaks. The VOA receives a feedback loop signal to aid in balancing power levels between CCW and CW beams to eliminate a rate signal at an intensity modulation frequency.

Abstract: This disclosure describes systems and methods for providing antenna steering through GNSS jamming, spoofing, and airplane maneuvers. In certain embodiments, a device includes a GNSS antenna configured to receive GNSS signals transmitted from a plurality of GNSS sources; and a GNSS antenna support structure mounted within a vehicle, wherein the GNSS antenna is mounted to the GNSS antenna support structure, wherein the GNSS antenna support structure is configured to keep directionality of the GNSS antenna pointing up during motion of the vehicle.