Abstract: Holsters have a body defining a pistol receptacle, the body having a medially-facing first major surface configured to face toward a wearer, a laterally-facing second major surface configured to face away from the wearer, a first belt passage associated with the first major surface and adapted to receive a wearer's belt with a portion of the belt between a major portion of the body, a belt loop receptacle associated with the second major surface, a belt loop element configured to be removably received by the belt loop receptacle, the belt loop element including a fastener having a fastened condition and an unfastened condition, and the fastener adapted to secure the belt loop element in a closed loop when in the fastened condition to encompass a wearer's belt with the body between the belt and the wearer, and to enable insertion and removal of a belt when in an unfastened condition.

Abstract: A method and device are provided for launching a payload from water, including a launching tube having inside walls, outside walls, a top and an inlet at the tube bottom, with the tube anchored to the bottom water surface. The tube includes a nozzle or neck inlet to the bottom and an open top outlet. A gate valve at the inlet is opened by remote control signals; or an explosive plug at the inlet is removed by an explosion initiated by remote control. The launching tube loaded with a payload and air filled and empty of water is installed in water with the inlet and the tube bottom proximate to the bottom water surface deep below the tube top, which is positioned above the water surface.

Abstract: A time domain detection system to measure and report on hypervelocity impacts HVI between an interceptor vehicle and a target vehicle. Wherein, said time domain detection system comprises a target vehicle components installed on said target vehicle, a one or more panels arranged on a portion of said target vehicle at a potential HVI locations, and a hit detection system wired into said one or more panels. Said target vehicle components comprise at least said hit detection system, and a lines. Said one or more panels are wired into said hit detection system with said lines. Said hit detection system is configured to communicate with said one or more panels over said lines. Said one or more panels can each comprise a one or more detector panel layers, and a two or more insulator layers.

Abstract: A spatially-distributed architecture (SDA) of antennas transmits respective uniquely coded signals. A first receiver having a known position in a coordinate system defined by the SDA receives reflected versions of the uniquely coded signals. A first processor receives the reflected versions of the uniquely coded signals and identifies a position of a non-cooperative object in the coordinate system. A platform with a platform receiver receives non-reflected versions of the uniquely coded signals. The platform determines a position of the platform in the coordinate system. In an example, the platform uses a self-determined position and a position of the non-cooperative object communicated from the SDA to navigate or guide the platform relative to the non-cooperative object. In another example, the platform uses a self-determined position and information from an alternative signal source in a second coordinate system to guide the platform. Guidance solutions may be generated in either coordinate system.

Abstract: An unmanned autonomous vehicle is configured to delivery packages in a product delivery network. The vehicle includes an outer housing, a conversion circuit, a battery, and a control circuit. The outer housing includes a first layer that is configured to collect solar radiation, and a second layer that is configured to render a visual display. The conversion circuit is disposed within the outer housing, and is coupled to the first layer. The conversion circuit is configured to convert the collected solar radiation to electrical charge and store the charge in a battery. The control circuit is coupled to the second layer and is configured to independently determine one or more images to render at the second layer, and to cause the one or more images to be rendered at the second layer. The solar radiation is collected at the first layer simultaneously with the images being rendered at the second layer.

Abstract: Apparatus and methods for reducing injury or damage from an explosive device are disclosed. An example apparatus includes a housing and at least one inflator coupled to the housing. The apparatus also includes a shield coupled to the housing. The shield has a plurality of channels coupled to the at least one inflator. The shield also has a compact position and an expanded position. The plurality of channels are configured to receive a fluid from the at least one inflator and thereby at least partially advance the shield from the compact position to the expanded position.

Abstract: A flare including: a casing; and a grain assembly, at least a portion of the grain assembly being slidably disposed in the casing, the grain assembly including: a shell structure; and a grain component at least partially disposed in the shell structure, the grain component including at least one combustible material and at least one reactive material positioned relative to the combustible material and configured to ignite combustion of the at least one combustible material; wherein the shell structure includes one or more fins at an aft end of the shell structure, the one or more fins being restrained into a first shape in the casing and configured to have a second shape, different from the first shape, when the restraint is removed.

Abstract: The present invention provides a primer insert for a polymer ammunition cartridge comprising: a top surface; a bottom surface opposite the top surface; a coupling element that extends from the bottom surface, wherein the coupling element comprises an interior surface and an exterior surface, wherein the interior surface comprises: a transition region that transitions from the bottom surface to a second segment wherein the transition region has a radius of from 0.02 to 0.2; a first segment extending from the second segment and terminates at a tip, wherein the first segment has a first segment distance from 0.02 to 0.18 inches and the second segment has a second segment distance from 0.02 to 0.

Abstract: The present invention provides a primer insert for a polymer ammunition cartridge comprising: a top surface; a bottom surface opposite the top surface; a coupling element that extends from the bottom surface, wherein the coupling element comprises an interior surface and an exterior surface, wherein the interior surface comprises: a transition region that transitions from the bottom surface to a second segment wherein the transition region has a radius of from 0.02 to 0.2; a first segment extending from the second segment and terminates at a tip, wherein the first segment has a first segment distance from 0.02 to 0.18 inches and the second segment has a second segment distance from 0.02 to 0.

Abstract: The present invention provides a primer insert for a polymer ammunition cartridge comprising: a top surface; a bottom surface opposite the top surface; a coupling element that extends from the bottom surface; wherein the coupling element comprises an interior surface and an exterior surface, wherein the interior surface comprises: a transition region that transitions from the bottom surface to a second segment wherein the transition region has a radius of from 0.1 to 0.2; a first segment extending from the second segment and terminates at a tip, wherein the first segment has a first segment distance from 0.06 to 0.14 inches and the second segment has a second segment distance from 0.05 to 0.

Abstract: The present invention provides a primer insert for a polymer ammunition cartridge comprising: a top surface; a bottom surface opposite the top surface; a coupling element that extends from the bottom surface, wherein the coupling element comprises an interior surface and an exterior surface, wherein the interior surface comprises: a transition region that transitions from the bottom surface to a second segment wherein the transition region has a radius of from 0.1 to 0.2; a first segment extending from the second segment and terminates at a tip, wherein the first segment has a first segment distance from 0.06 to 0.14 inches and the second segment has a second segment distance from 0.05 to 0.

Abstract: A cartridge case with a case crush region that facilitates an additional amount of case crush in the axial direction, per unit of input force and energy, as compared to an identical cartridge case without such a region. The crush region may conceivably be either of a fully or partially circumferential nature with applicability to any style cartridge case, be it bottleneck or straight-walled and of any rim configuration (rimmed, semi-rimmed, rimless, rebated-rim, belted) and without prejudice to the case material (brass, stainless steel, polymer, etc.). This feature may be incorporated into the design of existing cartridge cases as well as future designs.

Abstract: A hunting arrow having an arrow shaft with a front end and a back end. The hunting arrow has at least one arrow blade attached to the arrow shaft, and has a closed position and at least one open position. The at least one arrow blade is substantially flush with the arrow shaft when in the closed position, and extends radially outward from the arrow shaft when in an open position. In addition, the hunting arrow has an arrow tip that is attached to the front end of the arrow shaft and is capable of moving longitudinally toward or away from the arrow shaft. The arrow tip is operatively engaged with the at least one arrow blade so that the arrow tip opens and closes the at least one arrow blade by moving relative to the arrow shaft.

Abstract: A venting lifting plug is provided for an unfuzed munition having a cavity with internal threads.

Abstract: Examples in the disclosure relate to an apparatus for checking whether a flange in a creased sheet of metal conforms to specified dimensions. The tool may include a handle and a first block extending from the handle. The first block may include a slot extending from a distal surface of the block to an interior end, the slot having an interior wall and an opposite exterior wall. The first block may include a shoulder located near the distal surface of the block extending from the interior wall toward the exterior wall and defining a length between the shoulder and the interior end along the interior wall. The length may correspond to a specified length of the flange. The first block may include a beveled edge on the exterior wall corresponding to a specified distance between a surface of the sheet and the flange.

Abstract: A locator mechanism for checking dimensions of a component includes a stationary base that has sides that define a pocket that opens upwards. A locator block is disposed in, and moveable in, the pocket. At least one spring biases the locator block toward one of the sides of the stationary base. The locator block carries either a recess or a portion of a pin for engaging, respectively, either a boss or a hole of a component to be checked. The spring biases the locator block, and thus also the component, toward the one side of the stationary base to remove play in positioning of the component.

Abstract: A method and apparatus for measuring an object using a coordinate measuring machine locates the object using logic associated with the coordinate measurement machine. In response to locating the object, a controller directs a measuring device of the coordinate measuring machine to measure the object.

Abstract: The detector for a surface measuring device includes: an arm including a contact at a tip end of the arm; a rotation shaft configured to rotatably support the arm; a transmission part having one end connected to the arm at a position on a side opposite to the contact with respect to the rotation shaft; an elastic part having one end connected to another end of the transmission part and configured to generate a measuring force to be applied to the contact; a position adjusting part connected to another end of the elastic part and configured to move a position of the another end of the elastic part in a moving direction; and a tilt adjusting part connected to the arm and including a contact part arranged at position where the contact part can be brought into contact with the transmission part.

Abstract: A displacement measuring device includes: a probe having a telescopic structure capable of extending and contracting as a whole; and a measuring unit configured to measure a displacement of a front end relative to a base end of the probe, the probe includes a single cylindrical body or a plurality of cylindrical bodies having different diameters and a columnar or cylindrical front end member that is movably inserted into the single cylindrical body or the cylindrical body having the smallest diameter and of which a front end is mounted to a displacement measuring object, and the single or the plurality of cylindrical bodies and the front end member have a rotation applying mechanism that applies a rotation movement in conjunction with a forward/backward movement when the inner cylindrical body or the front end member moves forward/backward relative to the outer cylindrical body in an extension and contraction direction.

Abstract: Disclosed is a wheel flange planeness detection device, comprising a frame, a lifting cylinder, a lifting platform, guide posts, a support frame, a servo motor, a bearing seat, a shaft, a bearing, a rotating platform, guide rails, a sliding block, a small chain wheel, a large chain wheel, a clamping cylinder, a chain wheel driving motor, a left sliding plate, rotating shafts, rotating wheels, a visual sensor, clamping guide rails, gear rack structures, a right sliding plate, intelligent dial indicators, a support plate, a linear motor and a motor support. The device may monitor the state of flange planeness in an automatic production line in real time; when the flange planeness is out of tolerance, the device may immediately give an alarm, and the technologist adjusts the machining process in time after receiving the alarm, thereby avoiding a large batch of rejects.

Abstract: A resonant inductive sensing system includes an active resonator target that balances losses in the target resonator. The resonant sensor includes a sensor resonator LC circuit and a resonant target including a target resonator Lt/Ct circuit characterized by a loss factor Rts and a target quality factor Qt. The sensor resonator LC circuit and the target resonator Lt/Ct circuit are configured for operation as coupled resonators. The resonant sensor includes a sensor circuit configured to drive the resonant sensor, such that the sensor resonator LC circuit projects a magnetic sensing field based on a sensor quality factor Q, and an active negative resistance circuit ?Ra coupled to the target resonator Lt/Ct circuit, and configured to substantially cancel the loss factor Rts, such that target quality factor Qt is substantially Qt=(?[Lt/Ct]/Rts)(RaRts/[RaRts?Lt/Ct]).

Abstract: Methods, systems, and computer program products for inspecting a pipe in a well using an eddy-current based pipe inspection tool comprises conveying the pipe inspection tool through the well, obtaining a first voltage measurement at an axial position along the pipe from at least one main receiver. The first voltage measurement includes a residual voltage induced in the at least one main receiver by a residual magnetic field resulting from residual magnetism in the pipe. A second voltage measurement is obtained at said axial position along the pipe from at least one second receiver. The first voltage measurement and the second voltage measurement are processed to obtain a processed measurement representing a difference between the first and second voltage measurements. The processed measurement is substantially free of the residual voltage and may be use to estimate a thickness of the pipe and other pipe characteristics.

Abstract: Various systems and methods for sequential angle illumination to achieve ultra-high resolution optical coherence tomography (OCT) images. One example OCT system includes a light source, a beam divider, sample arm optics, a detector, and a processor. The light source generates a light beam to illuminate the sample. The beam divider separates the light beam into reference and sample arms. The sample arm optics sequentially illuminates a location in the sample with the light beam from different angles. The detector receives light returned from the reference arm and the sample illuminated at each angle and generates signals. The processor combines the signals to generate an image, which has a transverse resolution that is higher than the transverse resolution achieved from the signal generated from a single angle.

Abstract: An imaging probe (102) for use in measuring surface roughness by angular speckle correlation is shown. The imaging probe comprises a first illumination fibre (201) to illuminate a sample location (103) on a surface, and having an input end for coupling of coherent light into the fibre, and an output end cleaved at an angle ?1, a second illumination fibre (202) to illuminate the sample location on the surface, and having an input end for coupling of coherent light into the fibre, and an output end cleaved at an angle ?2 that is different from ?1, and an image transmission system (204) for transmission of a speckle pattern caused by illumination of the sample location on the surface by coherent light from either the first illumination fibre or the second illumination fibre.

Abstract: A grating measuring device includes: a light source module (300) for generating two light beams having different frequencies, one of which serves as a measuring beam and the other as a reference beam; a grating (200); and a grating measuring probe (100) including a dual-frequency light reception module, a vertical measurement module, a vertical detection module and a reference detection module. The dual-frequency light reception module is configured to receive the measuring and reference beams, and the vertical measurement module is adapted to project the measuring beam onto the grating (200), collect a zeroth-order diffracted beam resulting from double diffraction occurring at the grating, and feed the zeroth-order diffracted beam to the vertical detection module. The zeroth-order diffracted beam interferes with the reference beam in the vertical detection module, resulting in a vertical interference signal.

Abstract: According to one embodiment, an image processing apparatus includes a memory and one or more processors. The one or more processors are electrically connected to the memory, and calculate blur correction information to make a blur of a first shape of an object approach a blur of a second shape of the object. The first shape of the object is contained in a first component image of one image. The second shape of the object is contained in a second component image of the one image. The one or more processors calculate a distance between an imaging device and the object based on an image distance when the one image is captured and the blur correction information. The image distance is a distance from a lens up to an image forming surface of the object.

Abstract: Provided is a sensor head capable of reduction in size while securing measurement accuracy. A sensor head includes a first case section and a second case section each having a substantially cylindrical shape and an end portion of which is open, and a third case section configured to connect the first case section and the second case section, a diffraction lens is disposed in the first case section, an objective lens is disposed in the second case section, and a mirror member is disposed in the third case section and configured to bend light entering the diffraction lens side toward the objective lens side.

Abstract: A system includes one or more wafer geometry measurement tools configured to obtain geometry measurements from a wafer. The system also includes one or more processors in communication with the one or more wafer geometry measurement tools. The one or more processors are configured to apply a correction model to correct the geometry measurements obtained by the one or more wafer geometry measurement tools. The correction model is configured to correct measurement errors caused by a transparent film positioned on the wafer.

Abstract: The invention relates to a device for optical measurement of a thickness of an intransparent layer on a substrate, comprising first means for optical distance measurement configured to measure a first distance between a first reference plane and a first surface of the intransparent layer, and second means for optical distance measurement configured to measure a second distance between a second reference plane and a second surface of the intransparent layer. The second means measures a third distance between the second reference plane and a surface of the substrate. The thickness of the intransparent layer is computed from the first distance and the second distance. The measurement of the third distance is used to take into account the influence of the optical effect of the substrate on the distance measurement of the second distance. The invention also relates to a method for optical measurement of a thickness of an intransparent layer on a substrate.

Abstract: Problem: To provide a device, system, method, and program able to easily measure retroreflective coefficients using a commercially available mobile terminal having an imaging unit. Resolution Means: A device is provided that has an imaging unit for capturing an image of a target object, an observation angle acquiring unit for acquiring an observation angle determined by a positional relationship between the imaging unit, a light source for emitting light for capture and the target object, an entrance angle acquiring unit for acquiring an entrance angle of light emitted for capture incident on the target object, a converting unit for converting image data of an image to a luminance value of the target object using capture information of the image, and a calculating unit for calculating a value of a retroreflective coefficient of the target object based on an illuminance value and the luminance value of the target object.

Abstract: Examples of a light field metrology system for use with a display are disclosed. The light field metrology may capture images of a projected light field, and determine focus depths (or lateral focus positions) for various regions of the light field using the captured images. The determined focus depths (or lateral positions) may then be compared with intended focus depths (or lateral positions), to quantify the imperfections of the display. Based on the measured imperfections, an appropriate error correction may be performed on the light field to correct for the measured imperfections. The display can be an optical display element in a head mounted display, for example, an optical display element capable of generating multiple depth planes or a light field display.

Abstract: A surface topography optical measuring system including image capture modules, a control module and a computation module is provided. Each image capture module includes an electronically controlled focal length tunable lens, an optical assembly and an image sensor, wherein the image capture modules respectively capture images at different heights between a lowest and a highest surfaces of an object. The control module is coupled to the image capture modules to independently control the image capture modules. The computation module is coupled to the control module and the image sensor of each image capture module, wherein the computation module perform calibration of the surface topography optical measuring system and assesses in-focused pixels in the captured images to measure a height difference between a highest and a lowest surfaces of the object or between any surfaces of interest of the object. A surface topography optical measuring method is also provided.

Abstract: A shape estimation device includes an input circuit, a storage circuit and an arithmetic circuit. The input circuit receives light amount information being a relationship between a wavelength and a light amount. The light amount information is acquired by using a sensor configured such that the light amount to be detected with respect to the wavelength corresponding to each of sensing parts varies in accordance with a shape of each of the sensing parts. The storage circuit stores a relationship among the shape, the wavelength and the light amount with respect to each sensing part. The arithmetic circuit calculates the shape of each sensing part, based on the light amount information, and a light amount estimation value being a relationship between the wavelength and the light amount.

Abstract: A three-dimensional shape data and texture information generating apparatus causes, in the state that a camera is focused on the partial region comprising the distance measurement target point on an object, causes a distance measuring sensor to measure the distance from the position of the camera to the distance measurement target point, causes a driving apparatus to drive at least one of the object and the camera so that the partial regions are sequentially changed while one of the measured distance and a distance calculated from the measured distance is kept within a range of a depth of field, acquires an image of each partial region by causing the camera to capture the image of each of the partial regions on the object, and generates the three-dimensional shape data and texture information based on the obtained image.

Abstract: A device for measuring a shape of a wall portion of a coke oven is provided. The device includes a box having a main part defining at least one opening and a closing system movable with respect to the main part between an open position and a closed position, an internal protective screen located within the box and defining at least one scanning window, the scanning window being narrower than the opening along a transverse direction (T) of the box and at least one 3D laser scanner located in the box for scanning the wall portion through the scanning window and through the opening when the closing system is in the open position.

Abstract: A three-dimensional measurement sensor based on line structured light, comprising a sensing head and a controller. The sensing head is used for collecting section data and attitude information of its own, and matching the section data with the self attitude information. The sensing head comprises a three-dimensional camera, an attitude sensor, a laser and a control sub-board, wherein the three-dimensional camera is installed at a certain angle relative to the laser, and acquires elevation and grey information about an object surface corresponding to laser rays using a triangulation principle. The attitude sensor, the three-dimensional camera and the laser are installed on the same rigid plane, and the attitude sensor reflects measurement attitude of the three-dimensional camera and the laser in real time. The controller is used for measuring and controlling the sensing head, performing data processing transmission and supporting external control.

Abstract: A system for determining an optimal clocking orientation of an object at which to attach mating structure to the object includes a plurality of radiation devices, a plurality of transceivers, and a processor. The radiation devices are mounted on the object which has an as-designed object configuration. The transceivers are configured to generate distance measurements between the transceivers and the radiation devices at different clocking orientations of the object. The processor is configured to determine, based on the distance measurements, as-built object configurations corresponding to the different clocking orientations of the object. The processor is configured to compare the as-built object configurations to the as-designed object configuration and determines an optimal clocking orientation at which the as-built object configuration has the smallest deviation from the as-designed object configuration.

Abstract: The present application proposes an improved position sensor, a conveying device comprising the same and a method for position correction by using the same. The position sensor includes at least two light emitters, a light receiver array and a pedestal, the pedestal having a central plane and at least two sloping surfaces tilting towards a center of the pedestal at opposite edges, the at least two light emitters being arranged on the at least two sloping surfaces respectively, and the light receiver array being arranged on the central plane of the pedestal.

Abstract: An optical detecting apparatus for detecting a degree of freedom error of a spindle and has a standard bar and a sensor module, and is assembled between a spindle and a rotating platform of a powered machinery. The standard bar has a rod lens and a reflection face. The sensor module has two detecting groups, an oblique laser head, and a reflected spot displacement sensor. Each detecting group emits a laser light through the rod lens along the X-axis and the Y-axis of the powered machinery. The oblique laser head emits an oblique laser light to the reflected spot displacement sensor. When the spindle of the powered machinery generates errors after rotating, the sensor module receives the changes of the laser lights to obtain the displacement change signals of the standard bar for a calculation unit to detect the errors between the spindle and the rotating platform.

Abstract: An automated rivet measurement system comprises a number of end effectors, a number of cameras, a processor, and a comparator. The number of end effectors is configured to perform drilling and riveting on a structure. The number of cameras is connected to the number of end effectors. The number of cameras is configured to take a first image of a hole in the structure and a second image of a rivet in the hole. The processor is configured to process the first image and the second image to identify a number of reference points in the first image and the second image. The comparator is configured to determine a rivet concentricity using the hole in the first image and the rivet in the second image, in which the first image and the second image are aligned using the number of reference points.

Abstract: Auto-alignment beam tracking apparatus and methods. In one example, an auto-alignment beam tracking system includes an optical train that receives an auto-alignment beam, a linear detector array including a plurality of photosensitive detectors each configured to measure intensity of electromagnetic radiation incident thereon, and a lateral shearing interferometer positioned between the optical train and the linear detector array. The optical train is configured to direct the auto-alignment beam to the lateral shearing interferometer. The lateral shearing interferometer is configured to produce an interference pattern at the linear detector array from the auto-alignment beam, wherein changes in the intensity measured by the plurality of photosensitive detectors over time corresponding to a lateral shift of the interference pattern on the linear detector array indicate an angular tilt of the auto-alignment beam.

Abstract: There is provided a method for controlling a surface texture measuring apparatus equipped with a probe that cannot detect an edge portion so as to automatically perform edge detection and automatically set a workpiece coordinate system. Accordingly, it is possible to reduce discrepancies by individual operators when setting a coordinate system, and improve the workability of coordinate system setting. A surface to be measured is scanned with a probe along a preset preliminary measurement path. When a detection error which causes when the surface to be measured is out of the tracking range of the probe occurs, a measurement value immediately before the detection error has occurred is temporarily registered as a temporary edge point. When the detection error continues during the subsequent scanning for a predetermined distance along the preliminary measurement path, the temporarily registered temporary edge point is set to an edge point.

Abstract: A method for generating virtual content for presentation in an AR system includes, under control of a hardware processor included in the AR system, analyzing pose data to identify a pose of a user of the AR system. The method also includes identifying a physical object in a 3D physical environment of the user based at least partly on the pose. The method further includes responsive to detecting a first gesture, presenting a first type of virtual content in a display of the AR system. Moreover, the method includes responsive to detecting a second gesture, presenting a pod user interface virtual construct comprising a navigable menu. In addition, the method includes responsive to detecting a selection of an application through the navigable menu, rendering, in the display of the AR system, within the pod user interface virtual construct, the particular application in a 3D view to the user.

Abstract: A support leg weighing sensor, comprising a support leg, a weighing sensor being arranged in the support leg, and the upper end of the support leg being provided with a connecting part connected to an object where the support leg is needed to be installed; an elastic body (40) in the weighing sensor is a section of the support leg; one end of the elastic body (40) has a concave spherical surface (5) or a concave arc surface; and the end, having the concave spherical surface (5) or the concave arc surface, of the elastic body is supported on a support ball (13) in the support leg, or the support ball (13) is supported on the concave spherical surface (5) or the concave arc surface.

Abstract: A method for determining trajectory of a mobile object, including: provision of an object including sensors; displacement of the sensors along one and the same trajectory, the sensors maintaining one and the same distance between themselves and each measuring one and the same physical quantity; determination of instants for which the object has travelled an aggregate curvilinear distance which is equal to an integer multiple of the distance and calculation of a direction tangent to the trajectory of the object, for each of the instants determined; automatic reconstruction of the trajectory followed by the mobile object during its displacement by an interpolation, based on, for each reference instant determined, the measured tangent calculated for the reference instant.

Abstract: A user may be aided in modifying a product that is an assemblage of parts. This aid may involve a processor obtaining images of a target part captured by the user on a mobile device camera. The processor may compare, based on the captured images and a plurality of images of identified parts, the target part to the identified parts. Based on the comparison, the processor may determine an identity of the target part. This aid may also involve a processor obtaining images of a first configuration of a partial assembly of the product captured by a mobile device camera. The processor may compare, based on the captured images, the first configuration to a correct configuration of the partial assembly. Based on the comparison, the processor may determine that the first configuration does not match the correct configuration and may notify the user accordingly.

Abstract: An angular rate sensor. The sensor includes a Coriolis vibratory gyroscope (CVG) resonator, configured to oscillate in a first normal mode and in a second normal mode; a frequency reference configured to generate a reference signal; and a first phase control circuit. The first phase control circuit is configured to: measure a first phase difference between: a first phase target, and the difference between: a phase of an oscillation of the first normal mode and a phase of the reference signal. The first phase control circuit is further configured to apply a first phase correction signal to the CVG resonator, to reduce the first phase difference. A second phase control circuit is similarly configured to apply a second phase correction signal to the CVG resonator, to reduce a corresponding, second phase difference.

Abstract: A MEMS sensor includes a MEMS layer, a cap layer, and a substrate layer. The MEMS layer includes a suspended spring-mass system that moves in response to a sensed inertial force. The suspended spring-mass system is suspended from one or more anchors. The anchors are coupled to each of the cap layer and the substrate layer by anchoring components. The anchoring components are offset such that a force applied to the cap layer or the substrate layer causes a rotation of the anchor and such that the suspended spring-mass system substantially remains within the original MEMS layer.

Abstract: Methods and apparatuses are provided for determining rate of rotation around a center axis of circular resonator by trapping cold alkali atoms around the circular resonator and utilizing Raman or Bragg interferometry.

Abstract: Disclosed herein are methods and systems for fusion of sensor and map data using constraint based optimization. In an embodiment, a computer-implemented method may include obtaining tracking data for a tracked subject, the tracking data including data from a dead reckoning sensor; obtaining constraint data for the tracked subject; and using a convex optimization method based on the tracking data and the constraint data to obtain a navigation solution. The navigation solution may be a path and the method may further include propagating the constraint data by a motion model to produce error bounds that continue to constrain the path over time. The propagation of the constraint data may be limited by other sensor data and/or map structural data.