Abstract: Various techniques are provided to enclose at least a portion of a thermal imaging system in a thermoplastic material to create a waterproof thermal imaging system and encapsulate associated electrical components. In one example, a method includes placing at least a portion of a thermal imaging system comprising a plurality of exposed electronic components into a mold. The method also includes injecting a thermoplastic material into the mold to deposit the thermoplastic material onto the electronic components and encapsulate the electronic components in an overmolded solid enclosure formed by the thermoplastic material. Additional methods and systems are also provided.

Abstract: Various embodiments of the present disclosure may include an imaging system that includes a base module, a camera module, an interface plate, and a locking ring. The base module may be mounted on the interface plate via one or more quick release fasteners. The camera module may then be coupled to the base module and one or more blind mate connectors may allow for the camera of the camera module to quickly connector with the base module and communicate data and/or power. A locking ring may then be coupled (e.g., threaded) onto the base module over the camera module to secure the camera module to the base module.

Abstract: Various techniques are provided to enclose at least a portion of a thermal imaging system in a thermoplastic material to create a waterproof thermal imaging system and encapsulate associated electrical components. In one example, a method includes placing at least a portion of a thermal imaging system comprising a plurality of exposed electronic components into a mold. The method also includes injecting a thermoplastic material into the mold to deposit the thermoplastic material onto the electronic components and encapsulate the electronic components in an overmolded solid enclosure formed by the thermoplastic material. Additional methods and systems are also provided.

Abstract: Systems and methods include an infrared camera configured to capture an infrared image of a scene, a visible-light camera configured to capture a visible-light image of the scene, and a logic device configured to simultaneously capture a pair of images of the scene comprising the infrared image of the scene and the visible image of the scene, align the pair of images so that a pixel location in one of the pair of images has a corresponding pixel location in the other image, classify the visible image, annotate the infrared image based, at least in part, on the classification of the visible image, and add the annotated infrared image to a neural network training dataset for use in training a neural network for infrared image classification. A beamsplitter is arranged to reflect a first image of the scene towards the infrared camera and pass through a second image of the scene to the visible-light camera, and a first blackbody is attached thereto and positioned in a field of view of the infrared camera.

Abstract: Techniques are disclosed for systems and methods to reduce the overall physical size of and mechanical vibrations within a cryocooler/refrigeration system configured to provide cryogenic and/or general cooling of a device or sensor system. A refrigeration system includes an annular linear compressor configured to generate a compression wave of working gas for the system. The annular linear compressor includes an annular cylinder head with a pressure plate and a neck protruding from one side of the annular cylinder head, a compressor housing configured to mate with the pressure plate and the neck of the annular cylinder head and form a sealed cavity therebetween, and an annular cylinder assembly disposed within the sealed cavity and about the neck of the annular cylinder head. The annular cylinder assembly includes an annular piston assembly disposed within an annular cylinder of the annular cylinder assembly.

Abstract: Techniques are disclosed for systems and methods to provide passage planning for a mobile structure. A passage planning system includes a logic device configured to communicate with a user interface associated with the mobile structure and at least one operational state sensor mounted to or within the mobile structure. The logic device determines an operational range map based, at least in part, on an operational state of the mobile structure, potential navigational hazards, and/or environmental conditions associated with the mobile structure. Such operational range map and other control signals may be displayed to a user and/or used to generate a planned route and/or adjust a steering actuator, a propulsion system thrust, and/or other operational systems of the mobile structure.

Abstract: Systems and techniques are disclosed for an electronic device that may be coupled to an external device via a connector. The external device may have a protective cover, and different protective covers may have different thicknesses. The electronic device may include a connector adjustment mechanism that may adjust a position of the connector depending on the cover thickness.

Abstract: Various embodiments of the present disclosure may include an imaging system that includes a heating element for de-icing. The heating element may be positioned to heat a lens and the front of the housing of the imaging system. Additionally, imaging system or a portion thereof may be manufactured using a continuous molding process.

Abstract: An infrared imaging system is provided with a shutter assembly having an integrated thermistor. In one example, a device includes a shutter assembly. The shutter assembly includes a paddle configured to move between an open position and a closed position. The paddle is configured to block external infrared radiation from reaching a focal plane array (FPA) in a closed position, and pass the external infrared radiation to the FPA in an open position. The shutter assembly also includes an embedded thermistor configured to sense a temperature of the paddle when the paddle is in the open position. In another example, an infrared sensor assembly includes a first set of mechanically engageable electrical contacts for engaging with a second set of mechanically engageable electrical contacts of a shutter assembly electrically coupled with a thermistor through a conductive path. Additional devices and related methods are also provided.

Abstract: Techniques are disclosed for systems and methods to provide passage planning for a mobile structure. A passage planning system includes a logic device configured to communicate with a user interface associated with the mobile structure and at least one operational state sensor mounted to or within the mobile structure. The logic device determines an operational range map based, at least in part, on an operational state of the mobile structure and/or environmental conditions associated with the mobile structure. Such operational range map and other control signals may be displayed to a user and/or used to generate a planned route and/or adjust a steering actuator, a propulsion system thrust, and/or other operational systems of the mobile structure.

Abstract: Various embodiments of the present disclosure may include an imaging system that includes a base module, a camera module, an interface plate, and a locking ring. The base module may be mounted on the interface plate via one or more quick release fasteners. The camera module may then be coupled to the base module and one or more blind mate connectors may allow for the camera of the camera module to quickly connector with the base module and communicate data and/or power. A locking ring may then be coupled (e.g., threaded) onto the base module over the camera module to secure the camera module to the base module.

Abstract: Techniques are disclosed for systems and methods to provide sailing information to users of a mobile structure. A sailing user interface system includes a logic device in communication with a compass or orientation sensor, a wind sensor, and/or a speed sensor. Sensor signals provided by the various sensors are used to determine a heading and a wind direction for the mobile structure, which can be referenced to Magnet North. The wind direction and heading may be used to orient a sail chart rendered by the logic device. The sail chart graphically indicates the heading of the mobile structure relative to the wind direction and a performance contour for the mobile structure. The sail chart may be displayed to a user to refine manual operation of the mobile structure, and the information rendered in the sail chart may be used to autopilot the mobile structure.

Abstract: An infrared imaging system is provided with a shutter assembly having an integrated thermistor. In one example, a device includes a shutter assembly. The shutter assembly includes a paddle configured to move between an open position and a closed position. The paddle is configured to block external infrared radiation from reaching a focal plane array (FPA) in a closed position, and pass the external infrared radiation to the FPA in an open position. The shutter assembly also includes an embedded thermistor configured to sense a temperature of the paddle when the paddle is in the open position. In another example, an infrared sensor assembly includes a first set of mechanically engageable electrical contacts for engaging with a second set of mechanically engageable electrical contacts of a shutter assembly electrically coupled with a thermistor through a conductive path. Additional devices and related methods are also provided.

Abstract: Techniques are provided to perform flat field correction for infrared cameras using a liquid shutter. Devices and methods provide a focal plane array (FPA) that receives infrared radiation (e.g., thermal infrared radiation) from a scene, and infrared-opaque liquid disposed in a cavity of a liquid shutter housing, and a fluid controller that directs the liquid from a reservoir area of the cavity to a field of view area of the cavity to block the FPA from the infrared radiation. Flat field correction terms may be determined and radiometric calibration may be performed. In one example, a liquid shutter uses voltages to direct liquid. In another example, a liquid shutter uses magnetic fields from electromagnets to direct liquid such as ferrofluid. In another example, a liquid shutter uses electrowetting techniques to direct liquid such as water. In a further example, a liquid shutter uses a pump.

Abstract: Systems and techniques are disposed for an electronic device that may be coupled to an external device via a connector. The electronic device may include a connector adjustment mechanism that may adjust a position of the connector.

Abstract: Various embodiments of the present disclosure may include a device having a housing and a lens element configured to pass thermal radiation received from an external environment. The lens element may be an outer surface of the housing exposed to the external environment through an aperture in the housing. The device may also include a focal plane array within the housing and configured to receive the thermal radiation passed by the lens element. The device may further include a heater in thermal contact with the lens element and a controller configured to selectively operate the heater to maintain the lens element within a desired temperature range.