Abstract: A measuring arrangement is calibrated for determining rotational positions of a rotary device that has a first part and a second part which can be rotated relative to the first part about a rotational axis. Rotational positions of the first part relative to the second part and/or rotational positions of the second part relative to the first part are detected using a plurality of sensors distributed about the rotational axis. A respective measurement signal corresponding to each detected rotational position is generated such that redundant information on the rotational positions of the first part and the second part relative to each other is provided. The redundant information on the rotational position(s) are analyzed such that effects of a translational movement of the first and the second part relative to each other are corrected, the translational movement running transverse to the extension of the rotational axis.

Abstract: To provide a process for producing a cylindrical target which has almost no distortion in the longitudinal direction. The process for producing a cylindrical target according to the present invention comprises the steps of: processing a target material into a cylindrical shape; providing an adapter for attachment to a sputtering apparatus, in the target material processed into the cylindrical shape; and measuring a straightness in a longitudinal direction of an appearance of the target material having the adapter to confirm whether the straightness of the target material having the adapter is within a predetermined range.

Abstract: A device and associated method for monitoring a rotatable member is described, and includes a target wheel coupled to the rotatable member, and a sensor that is disposed to monitor the target wheel. The sensor is configured to generate a signal associated with rotation of the target wheel. A controller is in communication with the sensor and includes an instruction set that is executable to dynamically monitor the signal generated by the sensor during rotation of the target wheel and determine a magnitude of an airgap between the sensor and the target wheel based upon the signal. A variation in the magnitude of the airgap between the sensor and the target wheel can be determined based upon the signal, and a fault associated with the rotating member can be determined based upon the variation in the magnitude of the airgap.

Abstract: Some aspects described herein involve a multi-turn counter (MTC) system that includes a first MTC sensor configured to sense a rotating magnetic field coupled to a rotatable object. The first MTC sensor may have a first sense of rotation detection. The MTC system may include a second MTC sensor may be configured to sense the rotating magnetic field. The second MTC sensor may have a second sense of rotation detection which is opposite to the first sense of rotation detection, and the second MTC sensor is configured to sense the rotating magnetic field according to the second sense of rotation.

Abstract: To determine a position of an object (100) parallel to the optical axis (120) of an optical device (1), the object (100) is illumined from a first illumination direction (210-1) and from a second illumination direction (210-2) and an image (230-1, 230-2) is acquired in each case. The position of the object (100) is determined based on a distance (250) between imaging locations of the object (220-1, 220-2) in the images (230-1, 230-2).

Abstract: The shape sensor system of the present invention includes a braided structure in which small diameter bending members including two or more optical fibers, provided with detection target portions, are spirally wound around a core member as an axis in directions opposite to each other, or a braided structure in which three or more small diameter bending members including an optical fiber and a dummy optical fiber or a thin metal wire are braided, a plurality of detection target portions are distributed in the direction around the axis of the core member, the bending directions of the respective bending members are synthesized to detect a bending shape of the probe portion, a function of adjusting the fiber length in a braiding cycle is performed, and position deviation does not occur.

Abstract: This patent document discloses fiber sensing techniques and devices for shape monitoring by using single- and multi-core optical fiber implementations and optical interferometry. Implementations can be made based on coherent optical time domain reflectometry (OTDR) or optical frequency domain reflectometry (OFDR).

Abstract: A method for verifying performance of a light projector includes establishing a reference artifact that include reflective makers and an interior edge line, determining with a laser-tracker-based three-dimensional (3D) measuring system 3D coordinates of the reflective targets and the interior edge line, determining with the light projector angles to the reflective markers with the light projector, and projecting with the light projector a pattern of light onto the interior edge line.

Abstract: A confocal optical protractor for simultaneously measuring roll angle, pitch angle and yaw angle of an element that includes a tunable laser source generating a laser beam and an SPPR device responsive to the laser beam. The protractor also includes a beam splitter receiving and splitting an output beam from the SPPR device, and a lens being responsive to and projecting the split beam onto the element and being responsive to a reflected beam from the element. The protractor further includes a measurement detector responsive to the reflected beam from the element, where the reflected beam is imaged by the lens onto the measurement detector, and a processor receiving and processing image data from the measurement detector and generating the pitch, yaw and roll angles from the data, where the image data includes an orientation of an vortex intensity pattern in the split beam.

Abstract: A vehicle wheel alignment system has a plurality of cameras, each camera for viewing a respective target disposed at a respective wheel of the vehicle and capturing image data of the target as the wheel and target are continuously rotated a number of degrees of rotation without a pause. The image data is used to calculate a minimum number of poses of the target of at least one pose for every five degrees of rotation as the wheel and target are continuously rotated the number of degrees of rotation without a pause. At least one of the cameras comprises a data processor for performing the steps of preprocessing the image data, and calculating an alignment parameter for the vehicle based on the preprocessed image data.

Abstract: The methods and systems disclosed here leverage currently available reliable top down imaging techniques used by SEMs and use computational methods to synthesize accurate 3D profiles of features of high aspect ratio structures in a device. Radial cross-sectional profiles obtained from different locations along the lateral direction at different heights/depths are stitched together to create one composite 3D profile of the HAR feature.

Abstract: A method of determining fibers paths for a composite ply includes generating a triangulated surface of the composite ply, and defining a first unit vector field establishing a 0-degree direction for the triangulated surface. A second unit vector field is defined by rotating, through specified fiber angles measured relative to the 0-degree direction, the first unit vector field about surface normals of the triangulated surface. A third unit vector field representing a gradient direction of a potential function is defined by rotating the second unit vector field over 90° about the respective surface normals. The third unit vector field is scaled to create a non-unit vector field, and a first potential function is determined by performing a least-squares fit such that the direction and magnitude of the gradient best approximate the direction and the magnitude of the non-unit vector field.

Abstract: A 3D scanner system includes a scanning device capable of recording first and second data sets of a surface of an object when operating in a first configuration and a second configuration, respectively. A measurement unit is configured for measuring a distance from the scanning device to the surface. A control controls an operation of the scanning device based on the distance measured by the measurement unit, where the scanning device operates in the first configuration when the measured distance is within a first range of distances from the surface and the scanning device operates in the second configuration when the measured distance is within a second range of distances; and a data processor is configured to combine one or more first data sets and one or more second data sets to create a combined virtual 3D model of the object surface.

Abstract: A system for registering a target includes a first sensor, a second sensor, and a processor. The first sensor measures a plurality of ranges from a source to a target, and the second sensor obtains a plurality of location measurements of the source. The system further includes a processor configured for determining one or more weighting criteria associated with each one of the plurality of location measurements based on an estimated reliability of each one of the plurality of location measurements. The processor calculates a plurality of target location values based on the plurality of ranges measured by the first sensor and the plurality of locations measured by the second sensor and calculates an estimated target location value based on the plurality of target location values weighted according to the weighting criteria.

Abstract: Provided is a distance measuring device and a method of measuring a distance. The distance measuring device detects light reflected by an object, generates an electrical signal based on the detected light, detects whether the electrical signal is saturated or not by comparing the electrical signal with a reference value, controls a magnitude of the electrical signal based on whether the signal is saturated, and calculates a distance to the object using the electrical signal.

Abstract: Position-sensitive light beam detector comprising photodiodes and at least two weighting networks, each of which includes a signal output and network nodes. According to the invention, a plurality of the network nodes of the first weighting network is provided for the photodiode terminal in such a way that each node of said plurality of nodes is connected to a node of the second weighting network via a photodiode.

Abstract: A vibrating structure gyroscope includes an annular resonator arranged to vibrate in a plane in response to electrostatic driving forces and a set of capacitive drive electrodes arranged to apply a voltage creating an electrostatic driving force to excite a primary cos n? resonance along a primary axis at a primary frequency fP, such that Coriolis forces, resulting from an angular rate applied about an out-of-plane axis, induce a secondary cos n? resonance along a secondary axis at a secondary frequency fS. The gyroscope also includes digitally-controlled first and second sets to creating a static electrostatic balancing.

Abstract: A gyro sensor includes: a substrate; a fixed portion that is fixed to the substrate; a driving portion that is driven in a first direction oriented along a first axis; a mass portion that is connected to the driving portion and is displaced in the first direction; and an elastic portion that is connected to the mass portion and the fixed portion. The mass portion includes a detection portion that is displaceable in a second direction oriented along a second axis orthogonal to the first axis by a Coriolis force to act. An outer circumference surface of the elastic portion includes a main surface, a side surface, and a connection surface connecting the main surface to the side surface. The connection surface has a curved surface portion with a curved surface shape.

Abstract: Systems and methods are disclosed for determining a navigational constraint for a portable device using an optical sensor. The navigational constraint may be used to supplement other navigational solutions or may be used independently. The optical sensor may capture a plurality of samples to be processed to determine the constraint. Determining the constraint may include any or all of determining a context for usage, distinguishing usage modes, estimating an orientation of the portable device, determining an absolute and/or relative elevation, determining a direction of motion and determining a speed of the portable device from the samples.

Abstract: A method is described for determining a position of a two-wheeled vehicle. The single-track vehicle has a vehicle path yaw rate when driving along curves and a yaw rate according to the inclined orientation which differs from the vehicle path yaw rate. An inclined orientation of the single-track vehicle and a speed of the single-track vehicle are measured. The vehicle path yaw rate of the single-track vehicle is determined from the measured inclined orientation and the measured speed. A device for carrying out the method is also described.

Abstract: Localization and navigation systems and techniques are described. An electronic device comprises a processor configured to apply an extended Kalman filter (EKF) as the electronic device traverses the trajectory. The extended Kalman filter is configured to maintain a state vector storing estimates for a position of the electronic device at poses along a trajectory within an environment along with estimates for positions for one or more features within the environment. The EKF computes constraints based on features observed from multiple poses along the trajectory, and updates, in accordance with motion data and the one or more computed constraints, the estimates within the state vector of the extended Kalman filter while excluding, from the state vector, state estimates for positions within the environment for the features that were observed from the multiple poses and for which the constraints were computed.

Abstract: A system, comprising a clock generating a timing signal, a magnetometer coupled to the clock and configured to receive the timing signal and to generate first heading data and a gyroscope coupled to the clock and configured to receive the timing signal and to generate second heading data. The system further includes a first adder coupled to the magnetometer and gyroscope and configured to determine a difference signal as a function of the first heading data and the second heading data and a constrain data system coupled to the first adder and configured to apply a limit to the difference signal. A combine delta system is coupled to the constrain data system and configured to combine two or more of the constrained data values to generate a combined delta signal, and a second adder coupled to the gyroscope and the combine delta system and configured to add the combined delta signal to the second heading data.

Abstract: In an apparatus for controlling operation of an autonomously navigating utility vehicle adapted to run about a working area defined by a boundary wire which generates magnetic field therearound when supplied with electric current and having a magnetic sensor that produces an output indicating intensity of magnetic field generated by the boundary wire and a position determining unit that determine a position of the vehicle with respect to the working area based on the output of the magnetic sensor, a coded data signal determined to be inherent to the working area is generated and supplied to the electric current, and the position determining unit detects the data signal and determines the position of the vehicle based on a rate of concordance of the detected data signal and a reference signal.

Abstract: A method of controlling flight of an unmanned aerial vehicle (UAV) includes collecting, while the UAV traverses a flight path, a first set of images corresponding to different fields of view of an environment around the UAV using multiple image capture devices. Each of the multiple image capture devices has one of the different fields of view. The method further includes extracting a first set of feature points from the first set of images, controlling the UAV to traverse a return path, and while the UAV traverses the return path, collecting a second set of images corresponding to the different fields of view using the multiple image capture devices and comparing the first set of feature points with a second set of feature points extracted from the second set of images.

Abstract: A transponder for sensing a spatial environment for the purposes of creating a local map model of said spatial environment, said transponder comprising: a microprocessor; at least one sensor for scanning said spatial environment and acquiring sensing information about said spatial environment; a memory having instructions executable by said microprocessor to cause the microprocessor to process said sensing information to: determine distance measurements between said transponder and features within said spatial environment; and generate said local map model; a communications interface module coupled to said microprocessor for enabling communication with a first computing device to send said local map model thereto and for enabling communication with a second computing device for using said local map model to navigate said spatial environment.

Abstract: A commodity layout database retains commodity arrangement information in which a plurality of kinds of commodity identification information for identifying a plurality of commodities arranged indoors and indoor arrangement positions of the plurality of commodities are associated with each other. A photographing unit photographs the periphery of an indoor. A commodity specifying unit analyzes a photographed image and specifies commodity identification information included in the photographed image. A guidance information creating unit specifies an indoor arrangement position of a registered commodity registered in advance by the user on the basis of the specified commodity identification information, the commodity arrangement information, and registered commodity identification information for identifying the registered commodity, and creates guidance information for guiding the user to the specified arrangement position of the registered commodity. A display unit presents the created guidance information.

Abstract: An object of the present invention is to provide a map creation system and a map creating method capable of accurately creating road data on map data used for estimating a road being travelled by a vehicle. A map creation system includes a trajectory data creation unit creating trajectory data of a vehicle travelling in a predetermined area on a first road on the basis of positional information of the vehicle, a representative point extraction unit extracting, of created plural pieces of the trajectory data, representative points located on a side of a second road different from the first road, and a road data creation unit creating data for the first road on map data on the basis of the plural representative points extracted for respective plural predetermined areas.

Abstract: In one or more embodiments, one or more systems, methods, and/or processes may receive respective service center candidacy information from service center computers; determine that an autonomous vehicle requires service work; determine a pool of service centers that are capable of providing the service work for the autonomous vehicle; select, based at least on a reduction in a utilization of at least one resource, a service center from the pool of service centers; and provide, to the autonomous vehicle computing device associated with the autonomous vehicle, location information of the selected service center.

Abstract: A system and method for generating a target path for a vehicle and controlling the movement of the vehicle includes a processor and a control system in communication with the processor. The control system is configured to control the movement of the vehicle. The processor is configured to determine a target path, determine a cost of the target path using a cost function, wherein the cost function utilizes a criteria that comprises a smoothness of the target path, determine a constraint that the target path is allowed to exist within, and optimize the target path for the vehicle by reducing the cost of the target path using the cost function and the constraint in which the target path is allowed to exist within.

Abstract: One embodiment provides a method for determining at least one recommended vehicular travel route, the method including collecting a plurality of travel route inputs from a plurality of sources, relative to a travel route comprising a starting point and an ending point; determining at least one travel route recommendation by (i) assessing the collected plurality of travel route inputs and (ii) taking in to consideration vehicle emission impact parameters; and tracking vehicle adherence. Other variants and embodiments are broadly contemplated herein.

Abstract: There are provided systems and methods for load balancing for map application route selection and output. A user may utilize a device application to map or route between two or more endpoints, such as geo-locations entered or detected by the device. During calculation of a travel route between the endpoints, real-time data, user preferences, and requesting entities may provide criteria data that may cause determination of a particular travel route, where the travel route may be longer than a most efficient route but within a pre-defined variable time or distance allotment and match the criteria data. Use of the route may accrue a form of compensation for the user. The user may view an application interface displaying the route, which may further include one or more executable processes to cause recalculation of the route. Recalculation of the route may require the user to provide credits or compensation.

Abstract: An approach is provided for mobility-based language model adaptation for navigational speech interfaces. The approach involves receiving a word lattice resulting from a speech recognition process applied on a speech input received from a user via a navigational speech interface. The word lattice includes a respective speech recognition score for each word in the word lattice. The approach further involves adapting a language model comprising a plurality of location entities according to a mobility relevance and a search relevance of the plurality of location entities to the user. In one embodiment, the mobility relevance and the search relevance are determined by computing a probability of the user visiting the location entities associated with said each word after the user queries for said each word. The approach further involves initiating a re-scoring of said each word in the word lattice using the adapted language model to generate a speech recognition output.

Abstract: An HD map system represents landmarks on a high definition map for autonomous vehicle navigation, including describing spatial location of lanes of a road and semantic information about each lane, and along with traffic signs and landmarks. The system generates lane lines designating lanes of roads based on, for example, mapping of camera image pixels with high probability of being on lane lines into a three-dimensional space, and locating/connecting center lines of the lane lines. The system builds a large connected network of lane elements and their connections as a lane element graph. The system also represents traffic signs based on camera images and detection and ranging sensor depth maps. These landmarks are used in building a high definition map that allows autonomous vehicles to safely navigate through their environments.

Abstract: A method of operation of a navigation system includes: calculating a location for representing the location of a device; and generating with a control unit an output characteristic based on the location for controlling a content communication to a user through the device.

Abstract: As disclosed herein, a method for recognizing a previously-traveled route includes receiving recorded video data and a current video stream from one or more video capture devices, identifying one or more objects in the received video data to provide one or more recorded waypoints, identifying one or more visible objects in the received current video stream to provide one or more visible waypoints, comparing the visible waypoints to the recorded waypoints to provide one or more matching waypoints, and identifying a previously traveled path in the received current video stream corresponding to the one or more of the identified matching waypoints. A computer program product and computer system corresponding to the method are also disclosed.

Abstract: A vehicle and method for controlling the same, enabling guidance indication, such as turn by turn information to be displayed in cooperation with an interface in the vehicle, such as a cluster are provided to minimize driver distraction and increase usability of phone connectivity to guarantee stability and convenience. The vehicle includes a communication unit that receives navigation data from an outside terminal and a vehicle interface that outputs the navigation data. A controller then recognizes at least one of a mark and a character based on the navigation data and operates the vehicle interface to output the at least one of the mark and the character.

Abstract: The present invention provides a technique that makes it possible to output, with a simple operation of a user, information which is relevant to an object displayed by a display device. A display device (10) includes: NFC antennas (150); a managing section (122) for managing, for each of the NFC antennas, antenna identification information and object location information such that the antenna identification information and the object location information are associated with each other; an NFC communication control section (121) for obtaining proximity information; and an information output section (123) for outputting relevant information which is associated with the object location information.

Abstract: A management server communicable with a plurality of terminal devices, including a first terminal device, includes: a receiver to receive, from the first terminal device, shared information to be shared between the plurality of terminal devices, the shared information including first location information indicating a current location of the first terminal device, direction information indicating a direction that the first terminal device faces, and distance information indicating a distance from the first terminal device to a target destination; circuitry to generate target destination information including second location information indicating a location of the target destination based on the shared information received from the first terminal device; and a transmitter to transmit the target destination information to the plurality of terminal devices for display at the plurality of terminal devices.

Abstract: A server identifies landmarks associated with users as the users take part in trips or otherwise interact with a navigation system. The server causes presentation of the identified landmarks to the users during future trips, such as part of navigational directions along a route to a particular destination, or on a visible portion of a map user interface. Presentation of the user-specific landmarks allows the users with more context and thus the ability to better navigate.

Abstract: A MEMS (Microelectromechanical System) INU (Inertial Navigation Unit) chip comprises a compact autonomous device undergoing motion tracks and analyzes its definite movement relative to local Earth coordinates with optimal accuracy and repeatability of lmm over distances of greater than two meters. The MEMS INU includes an Inertial Motion Tracking Device (IMTD) comprises a gyroscope, accelerometer, magnetometer, and digital processor programmed with a general purpose Inertial Measurement Engine (IME), an application specific Motion Analysis and Adaptation (MAA) program and a low power radio. The IMTD tracks its motion with optimum accuracy using compact practical sensors that may have noise and drift by periodically and autonomously checking its velocity changes at an optimum interval, computing a linear acceleration therefrom and determining a no-motion or motion condition relative to a threshold and correcting its velocity, position and acceleration errors when there is no motion.

Abstract: A method for initial alignment of an inertial navigation apparatus, comprising the following steps: providing an apparatus loaded with a sensor, and preprocessing the sensor; carrying out relative alignment to calculate an installation error angle of the sensor; carrying out absolute alignment to calculate an installation attitude angle error of the sensor to increase an accuracy of an error attitude angle calculated during the relative alignment. The relative alignment process calculates a relative error attitude angle, the relative error attitude angle being used as the initial value for attitude error in a stat vector in the absolute alignment process, thereby accelerating convergence of the Kalman filter. Alignment precision is further enhanced by the absolute alignment process.

Abstract: A system for determining angular position includes a dipole magnet having an axis of rotation, wherein the dipole magnet produces a magnetic field. A first magnetic field sensor produces a first output signal and a second magnetic field sensor produces a second output signal in response to the magnetic field. The magnetic field sensors are operated in a saturation mode in which the magnetic field sensors are largely insensitive to the field strength of the magnetic field. Thus, the first output signal is indicative of a first direction of the magnetic field and the second output signal is indicative of a second direction of the magnetic field. Methodology performed by a processing circuit entails combining the first and second output signals to obtain a rotation angle value of the magnet in which angular error from a stray magnetic field is substantially cancelled.

Abstract: A line sensor includes a sensor cord including a resilient hollow insulator and two electrical wires arranged along an inner circumferential surface of the hollow insulator in an electrically non-contact state with each other, a constant current source which is connected to one of the two electrode wires at one end of the sensor cord, and a detecting device for detecting a pressed position. The other electric wire is grounded at the other end of the sensor cord. The two electric wires include a resistance wire having a resistance of 1 k?/m or more. The detecting device detects a voltage of the resistance wire at one end of the sensor cord to detect the pressed position in a longitudinal direction of the sensor cord based on the detected voltage.

Abstract: A capacitive sensor arrangement (4), for sensing an approaching object (5), is configured as a contact sensor (9) including a plurality of aligned, flat, spaced apart electrodes (4.1 to 4.n). One electrode (4.1) is a main electrode (S) and other electrodes are auxiliary electrodes (H). The evaluation unit (6) monitors the electrodes (4.1 to 4.n) together, such that changes in the capacitances of the plurality of auxiliary electrodes and changes in the capacitance of the main electrode are sensed and compared with one another and/or are compared with prescribed reference values. The evaluation unit (6) plausibility checks the sensed changes (D(S)) in the capacitance of the main electrode (S) on the basis of the sensed changes (D(H)) in the capacitances of the plurality of auxiliary electrodes (H) as to whether or not contacting of the main electrode or an approach towards the main electrode (S) has taken place.

Abstract: A circuit device adapted to perform detection of angular velocity observed by a capacitance type angular velocity transducer includes a drive device, a detection device, a vibration frequency controller adapted to variably control at least one of a detection frequency and a drive frequency of the capacitance type angular velocity transducer, and a storage adapted to store a correction parameter group adapted to correct a sensor characteristic of the capacitance type angular velocity transducer due to a variation of at least one of the detection frequency and the drive frequency.

Abstract: A sensor unit for detecting bending of the sensor unit comprises: a capacitive upper sensor having an upper capacitance and comprising first and second deformable upper electrodes spaced apart from one another in a Z direction, the first and second upper electrodes respectively having first and second upper shapes; and a capacitive lower sensor having a lower capacitance, spaced apart from the upper sensor in a Z direction and comprising first and second deformable lower electrodes spaced apart from one another in the Z direction, the first and second lower electrodes respectively having first and second lower shapes. For a bend of the sensor unit in a first direction, the first and second upper shapes change such that the upper capacitance decreases and the lower shapes change such that the lower capacitance increases.

Abstract: A sensor configured to detect displacement of a rotation angle of a shaft due to a rotation or a turn of the shaft, the sensor includes: a bearing rotatably supporting the shaft; and a housing including a bearing hole to which the bearing is fixed. The shaft and an inner circumferential surface of the bearing are fixed to each other by an adhesive agent, and an outer circumferential surface of the bearing and an inner circumferential surface of the bearing hole of the housing are fixed to each other by an adhesive agent.

Abstract: An encoder apparatus including a scale and a readhead including a sensor including an array of sensor elements for detecting a scale signal falling on the sensor, configured such that the sensor elements' outputs that are used to determine the relative position of the scale and readhead are weighted such that the influence of the sensor elements on the determined relative position of the scale and readhead varies across the array according to a predetermined non-rectangular window function that is configured to reduce the adverse effect of undesirable frequencies in the scale signal so as to thereby reduce the encoder apparatus' sub-divisional error.

Abstract: A deflection angle detection device includes an input shaft encoder, a disk attached to an output shaft of a speed reducer, an output shaft encoder having detection elements disposed at mutually different positions with respect to the disk to detect angular positions of the disk. A basic angular position of the output shaft is calculated based on an angular position of the input shaft detected by the input shaft encoder, a first, a second, and a third angular positions of the output shaft are calculated based on the angular positions of the disk detected by a plurality of detecting elements, and the deflection angle of the output shaft is calculated based on a first, a second, and a third differences, which are differences between the basic angular position and the first, the second, and the third angular positions, respectively, and positions of the detection elements with respect to the disk.

Abstract: A housing of a field device of measuring- and automation technology, comprising a housing body, which has at least two housing chambers, wherein the housing chambers are connected together by an opening. The opening is adapted to accommodate a circuit board which is held by at least one holder, wherein the circuit board is adapted to be populated with electronic components or assemblies. The opening is Ex-d sealed with a potting compound.