Abstract: A programmable controller for controlling an ultraviolet (UV) sensor may adjust an excitation voltage provided to the UV sensor based at least in part on a programmable sensitivity offset in order to produce an excitation voltage that results in a desired UV sensitivity for the UV sensor. The programmable sensitivity offset may be set for the UV sensor at the factory, set during commissioning of the UV sensor in the field, and/or automatically altered over time to help compensate for a degradation in sensitivity of the UV sensor.

Abstract: Generally, a scanning device performs a sonic scan of a space by generating an ultrasonic impulse and measuring reflected signals as raw audio data. Sonic scan data including raw audio data and an associated scan location is forwarded to a sonic mapping service, which generates and distributes a 3D map of the space called a sonic map. When multiple devices contribute, the map is a collaborative sonic map. The sonic mapping service is advantageously available as distributed computing service, and can detect acoustic characteristics of the space and/or attribute visual/audio features to elements of a 3D model based on a corresponding detected acoustic characteristic. Various implementations that utilize a sonic map, detected acoustic characteristics, an impacted visual map, and/or an impacted 3D object include mixed reality communications, automatic calibration, relocalization, visualizing materials, rendering 3D geometry, and the like.

Abstract: A system and method for sensing or tracking users at a geographic location or destination and collecting data based upon such users and/or the tracking of such users for enhancing the experience of the users, providing increased operational functionality of venues or attractions associated with the destination, and/or managing or influencing behavior associated with users or employees at the geographic location or destination. The system may be accessible via software applications executed upon mobile devices and/or permanent hardware kiosks and/or via a web-based interface. Trackable hardware is carried and/or worn or otherwise associated with the users so that the users' movement and activities may be tracked at the geographic location or destination.

Abstract: A conveyor chain includes a plurality of side link assemblies and flight arm assemblies coupled together to form an elongated chain. The flight arm assemblies include a pair of opposing flight arms positioned on either side of the chain with the flight arms each including an elongated body formed with and extending from an integral base and a vertical sprocket opening formed in the integral base. The vertical sprocket opening is configured for engaging a tooth of a drive sprocket to drive the flight arm. The side link assemblies include a pair of opposing side straps positioned on either side of the chain each including a base and a pair of side strap bosses extending outwardly from the base.

Abstract: Examples are disclosed relating to providing spatialized audio to multiple users. In one example, a computing device presents spatialized audio to multiple users within an environment via communicative connection to one or more wearable spatial audio output devices. For each communicatively connected wearable spatial audio output device, a user-specific subset of audio tracks is generated from a set of audio tracks for a dynamic audio object positioned within the environment based on one or more user-specific parameters. A location of the wearable spatial audio output device is determined relative to the dynamic audio object, and based upon this location, a device-specific spatialized audio mix is generated that includes the user-specific subset of audio tracks. The device-specific spatialized audio mixes are sent to the wearable spatial output devices, and playback of the device-specific spatialized audio mixes are synchronously initiated at each wearable spatial audio output device.

Abstract: Embodiments generally relate to linear variable displacement transformer (LVDT) position sensors. The position sensor comprises a bobbin, a moveable core, a primary coil of wire wound around the bobbin, and two secondary coils of wire wound around the bobbin about the primary coil using a fractional winding technique. For example, the winding length of the bobbin may be separated into three consecutive parts. Generally, the primary coil may be wound around the entire winding length of the bobbin. The first secondary coil may be wound around the first and second parts of the winding length. The second secondary coil may be wound around the second and third parts of the winding length. Additionally, the first secondary coil and the second secondary coil may overlap over the second part of the winding length.

Abstract: Embodiments generally relate to assembly and methods for precisely rigging a linear variable differential transformer (LVDT). For example, the probe rod assembly of a dual tandem LVDT may comprise two moveable cores, a probe fitting, and a probe rod. Generally, the first moveable core may be configured to achieve electrical zero with its respective transformer. Without adjusting the position of the probe rod with respect to the one or more coils of wire, the second moveable core may be configured to achieve electrical zero with its respective transformer. This may ensure that both moveable cores simultaneously achieve electrical zero in the null position. Typically, the probe fitting may be configured to fit at a first end of the probe rod projecting outward from the outer housing. The disclosed assembly and methods may be used to precisely rig dual tandem LVDTs, single channel LVDTs, and dual parallel LVDTs.

Abstract: A computer system is provided that includes one or more processors configured to receive a stream of data from a plurality of network connected devices configured to measure physical parameters, and store a user profile including user settings for a plurality of notification subscriptions associated with physical parameters measured by the plurality of network connected devices. Each notification subscription includes programming logic for a trigger condition for a candidate notification based on measured physical parameters and an associated component sound for the candidate notification. The one or more processors are further configured to determine that trigger conditions for a plurality of candidate notifications are met based on the received stream of data, and generate a composite sound output including a plurality of component sounds associated with the plurality of notifications rendered.

Abstract: A conveyor chain includes a plurality of side link assemblies and flight arm assemblies coupled together to form an elongated chain. The flight arm assemblies include a pair of opposing flight arms positioned on either side of the chain with the flight arms each including an elongated body formed with and extending from an integral base and a vertical sprocket opening formed in the integral base. The vertical sprocket opening is configured for engaging a tooth of a drive sprocket to drive the flight arm. The side link assemblies include a pair of opposing side straps positioned on either side of the chain each including a base and a pair of side strap bosses extending outwardly from the base.

Abstract: Apparatus and associated methods relate to a linear variable differential transformer (LVDT) probe including a plunger rod and a metal sheet formed into a cylinder with a C-shaped cross-section, configured to couple to the plunger rod. In an illustrative example, the coupling may be an interference fit aided by spring retention forces of the metal sheet. The metal sheet may be stamped, formed and applied to the plunger rod without annealing. One or more longitudinal metal sheet edges may be rounded. The C-shaped metal sheet may be welded to the plunger rod at a distal and/or proximal end. In some examples, the longitudinal edges of the metal sheet may be welded together and/or to the plunger rod. The ratio of relative electromagnetic permeability of the metal sheet to the plunger rod may be greater than 10. Various implementations may advantageously reduce lot-to-lot variability and reduce the cost of producing LVDTs.

Abstract: Apparatus and associated methods relate to a linear variable differential transformer (LVDT) having at least one a flexible element attached to a bobbin, where the bobbin is made from thermoplastic material having a coefficient of thermal expansion (CTE) matched to a coil wire of the LVDT. In an illustrative example, the flexible element may include a flexible substrate located between the bobbin and an enclosure of the LVDT. The flexible element provides temperature compensation by absorbing mechanical stresses and/or electro-thermal stresses for the LVDT, while the thermoplastic bobbin provides thermal stability to the LVDT by mitigating breakage of the LVDT coils due to expansion of the bobbin in response to temperature variations.

Abstract: Examples disclosed relate to displaying virtual objects. One example provides, on a display device comprising a camera and a display, a method comprising acquiring, via the camera, image data imaging an environment, receiving a user input requesting display of a three-dimensional virtual object, comparing dimensional information for the three-dimensional virtual object to dimensional information for a field of view of the display device, modifying the three-dimensional virtual object based upon comparing the dimensional information for the three-dimensional virtual object to the dimensional information for the field of view to obtain a modified three-dimensional virtual object, and displaying the modified three-dimensional virtual object via the display.

Abstract: Embodiments generally relate to assembly and methods for precisely rigging a linear variable differential transformer (LVDT). For example, the probe rod assembly of a dual tandem LVDT may comprise two moveable cores, a probe fitting, and a probe rod. Generally, the first moveable core may be configured to achieve electrical zero with its respective transformer. Without adjusting the position of the probe rod with respect to the one or more coils of wire, the second moveable core may be configured to achieve electrical zero with its respective transformer. This may ensure that both moveable cores simultaneously achieve electrical zero in the null position. Typically, the probe fitting may be configured to fit at a first end of the probe rod projecting outward from the outer housing. The disclosed assembly and methods may be used to precisely rig dual tandem LVDTs, single channel LVDTs, and dual parallel LVDTs.

Abstract: An aspect of the present disclosure is a system that includes a thermal valve having a first position and a second position, a heat transfer fluid, and an energy converter where, when in the first position, the thermal valve prevents the transfer of heat from the heat transfer fluid to the energy converter, and when in the second position, the thermal valve allows the transfer of heat from the heat transfer fluid to the energy converter, such that at least a portion of the heat transferred is converted to electricity by the energy converter.

Abstract: Among other things, embodiments of the present disclosure improve the functionality of electronic messaging systems by enabling users in an electronic chat conversation to run applications together. In some embodiments, when one user in a chat launches an application, an icon or other visual representation of the application appears in a portion of the chat window (e.g., in a “chat dock”) for other users in the chat to access.

Abstract: Examples disclosed relate to displaying virtual objects. One example provides, on a display device comprising a camera and a display, a method comprising acquiring, via the camera, image data imaging an environment, receiving a user input requesting display of a three-dimensional virtual object, comparing dimensional information for the three-dimensional virtual object to dimensional information for a field of view of the display device, modifying the three-dimensional virtual object based upon comparing the dimensional information for the three-dimensional virtual object to the dimensional information for the field of view to obtain a modified three-dimensional virtual object, and displaying the modified three-dimensional virtual object via the display.

Abstract: Systems and methods for authentication via camera are provided. In example embodiments, an authentication server transmits, to a mobile device, an identity verification image. The authentication server receives, from a computing device, a scanned image, wherein the computing device is different from the mobile device. The authentication server determines whether the scanned image includes data from the identity verification image. The authentication server transits, to a web server accessed by the computing device, an indication that a user's identity has been verified upon determining that the scanned image includes the data from the identity verification image.

Abstract: Methods and systems for performing security functions in a service-oriented computer system are provided. The method includes acts of receiving, from one or more entities, a service request for a service provided by one or more server computers adapted to process the service request; providing a copy of the service request to a processor adapted to analyze the copy of the service request; storing the service request in a memory; determining, by the processor, if the service request should be processed by performing one or more analyzes of the copy of the service request to determine if the service request would be harmful to the one or more server computers; and if it is determined that the service request should be processed by the one or more server computers, forwarding the service request to the one or more server computers.

Abstract: Embodiments generally relate to assembly and methods for precisely rigging a linear variable differential transformer (LVDT). For example, the probe rod assembly of a dual tandem LVDT may comprise two moveable cores, a probe fitting, and a probe rod. Generally, the first moveable core may be configured to achieve electrical zero with its respective transformer. Without adjusting the position of the probe rod with respect to the one or more coils of wire, the second moveable core may be configured to achieve electrical zero with its respective transformer. This may ensure that both moveable cores simultaneously achieve electrical zero in the null position. Typically, the probe fitting may be configured to fit at a first end of the probe rod projecting outward from the outer housing. The disclosed assembly and methods may be used to precisely rig dual tandem LVDTs, single channel LVDTs, and dual parallel LVDTs.