Abstract: The invention discloses a method for roundness measurement, which includes the steps of, mounting and rotating an object on a rotary table; driving two measuring surfaces of two measurement units to respectively abut against two opposite sides of the object, wherein the two measurement units are disposed on two opposite sides of the rotary table and the two measuring surfaces are parallel to each other and perpendicular to a to surface of the rotary table; during rotation of the rotary table, measuring intermittently a shortest straight line distance between the two measuring surfaces and generating a variation data and after the rotary table completes a full-circle rotation, a processing unit receiving the variation data and generating measured data. The present invention also discloses a device for roundness measurement.

Abstract: The present invention relates to a method and a device for adjusting the wheel alignment parameters of the wheels of a vehicle, wherein at least one vehicle axle is gripped by one gripping device per wheel axle, near the wheel flanges of the corresponding axle. According to the present invention, the gripping devices are moved by means of controllable drive means in such a way that the wheel alignment parameters of the wheels are adjusted via the orientation of the gripping devices.

Abstract: A system for duplicating a master key includes a clamping mechanism for receiving and positioning a master key. The master key defines a major key axis and an intermediate key axis along which a key blade variably extends. The key blade has an upper surface and a minor key axis along a key thickness. A mechanical measurement device includes a probe that deflects along the intermediate key axis during a measurement process. A movement mechanism imparts relative motion along the major key axis between the mechanical measurement device and the master key. The mechanical probe follows the upper surface of the key blade. The mechanical measurement device generates a signal indicative of the deflection of the probe. A processor receives the signal and generates information usable for defining the machining of a duplicate key.

Abstract: Provided is a stretchable electrode which has excellent flexibility, stretchability and electrical conductivity and is capable of suppressing increase of the electric resistance in being elongated and the occurrence of variation in the electric resistance during repeated stretching and contracting. The stretchable electrode of the present invention comprises a base formed of an elastomer composition and an electrode main body integrated with the base, wherein the electrode main body is formed using multi-walled carbon nanotubes having a fiber length of 50 ?m or more.

Abstract: A noncontact optical three-dimensional measuring device that includes a first projector, a first camera, a second projector, and a second camera; a processor electrically coupled to the first projector, the first camera, the second projector, and the second camera; and computer readable media which, when executed by the processor, causes the first digital signal to be collected at a first time and the second digital signal to be collected at a second time different than the first time and determines three-dimensional coordinates of a first point on the surface based at least in part on the first digital signal and the first distance and determines three-dimensional coordinates of a second point on the surface based at least in part on the second digital signal and the second distance.

Abstract: A device for contactless optical distance measurement includes a polychromatic light source, a light analysis unit and a measurement head. The measurement head has an aperture opening and an optical lens system, which has a chromatic longitudinal aberration. The optical lens system includes a first refractive lens element and a second refractive lens element. At least one of the refractive lens elements has at least one aspherical lens surface, and the first refractive lens element and/or the second refractive lens element has an optical material with an Abbe number 20?V d?41. The optical lens system has such a chromatic longitudinal aberration that a measurement region, which equals an axial focal shift of the optical lens system between the wavelengths of 450 nm and 700 nm, is between 0.2 mm inclusive and 10 mm inclusive.

Abstract: Disclosed are apparatus and methods for determining height of a semiconductor structure. The system includes an illumination module for directing one or more source lines or points towards a specimen having multiple surfaces at different relative heights and a collection module for detecting light reflected from the surfaces. The collection module contains at least two detectors with one slit or pinhole in front of each detector that that are positioned to receive light reflected from one of the surfaces. A first detector receives reflected light from a slit or pinhole that is positioned before a focal point, and a second detector receive reflected light from a slit or pinhole that is positioned after the focal point so that the first and second detector receive light having different intensity values unless the surface is at an optimum focus. The system includes a processor system for determining a height based on the detected light received by the detectors from two of the surfaces.

Abstract: A device for detecting body deformations or movements of a solid body (e.g. human body) includes a light source, a light receiver receiving a light signal and detecting its variations, an elastic lightguide, including optical imperfections, optically connected to the light source and light receiver, and attached to the body. The body's deformations effect the lightguide's deformations, producing the variations. The lightguide can be made as a single-piece or multiple-piece, wherein gaps between the pieces function as optical imperfections. The light variations are converted into electrical signals for further processing by a control system that can be respectively programmed. Particularly, the device can be implemented for monitoring/training human spine movements for treatment. Other implementations are measuring a position, displacement, speed and acceleration of the body or its parts relative to each other.

Abstract: An optical pattern projector used for projecting a structured-light pattern onto an object for dimensioning is presented. The optical pattern projector utilizes a laser array, a lenslet array, a lens, and a diffractive optical element to create a repeated pattern of projected dots. The pattern repetition is based on the grid pattern of laser array. Each laser's collimated beam, when projected through the lens, impinges on the diffractive optical element from a slightly different direction. The diffractive optical element creates a sub-patterns that continue propagating along these different directions and combine on a target to produce a repeating optical pattern.

Abstract: A system for measuring reflected optical distortion in a contoured panel having a specular surface includes a conveyor for conveying the panel in a first direction, at least one display projecting a preselected multi-phase non-repeating contrasting pattern, and at least one camera, each one of the cameras uniquely paired with one of the displays. The system may also include a control programmed to execute logic for controlling each of the cameras to acquire the desired images, and logic for analyzing and combining the data acquired by the cameras to construct a definition of the surface of the panel, and logic for performing one or more optical processing operations on the surface data to analyze the optical characteristics of the panel.

Abstract: Devices and methods for assessing topography of a reflective surface are provided. The methods comprise directing an arrayed light source onto the reflective surface to produce a reflected light pattern; and observing the reflected light pattern without the use of a computer to detect the presence of one or more topographical features of the reflective surface. The devices comprise an arrayed light source and a portable support operatively connected to the arrayed light source by an adjusting element. The presence of one or more topographical features of the reflective surface to are noted by an observer without the use of a computer. Defects may be discerned by the presence of a swirl in a reflected light pattern.

Abstract: A current problem with 3D scanners using structured light patterns is choosing a single light pattern to accommodate all possible object/range conditions. Objects far from the 3D scanner often require different patterns than objects that located close to the 3D scanner. In addition, large objects often require different patterns than small objects. To automatically sense and adapt to a wide variety of size/range conditions, the present invention embraces a 3D scanner for dimensioning that has two projectors for projecting two different light patterns. Based on the scanning requirements for a particular object, one of the two projected patterns may be used to obtain information regarding the shape of an object. In one possible embodiment, this shape information is used to obtain the object's dimensions.

Abstract: A system for duplicating a master key includes a mechanism for receiving and positioning a master key. The master key defines a major key axis and an intermediate key axis along which a key blade variably extends, and a minor key axis along a key thickness. Optical path components direct a light beam along the minor key axis. The light beam impinges upon the key blade. A portion of the light beam traverses the key blade. A detector receives the portion of the light beam that traverses the key blade. An apparatus imparts relative motion along the major key axis between the light beam and the master key. The light beam scans along the major key axis of the master key. A processor receives a signal from the detector as the beam scans along the major key axis and generates information usable for defining the machining of a duplicate key.

Abstract: A system for acquiring surface data from one of the surfaces of a curved glass sheet and developing a surface definition of the glass sheet includes a conveyor for conveying the glass sheet in a first direction, at least one display projecting a preselected multi-phase non-repeating contrasting pattern, and at least one camera, each one of the cameras uniquely paired with one of the displays. The system may also include a control programmed to execute logic for controlling each of the camera/display pairs to acquire the desired images, and logic for analyzing and combining the data acquired by the cameras to construct a definition of the surface of the glass sheet.

Abstract: A system and method for gaging the shape of a curved glass sheet includes, as components, (1) a system and method for acquiring three-dimensional surface data corresponding to the glass sheet, and (2) a system and method for receiving the acquired surface data, comparing the acquired surface to a pre-defined surface description, and developing indicia of the level of conformance of the contoured glass sheet to the pre-defined specification. The surface data acquisition system includes a conveyor for conveying the glass sheet, at least one display projecting a preselected contrasting pattern, and at least one camera. The camera(s) and display(s) are uniquely paired and are mounted in a spaced-apart relationship a known distance and angle from the surface of the glass sheet such that the camera detects the reflected image of the pattern projected on the surface of the glass sheet from its associated display.

Abstract: A method and device for location of pipes is disclosed. The method can comprise mounting one or more centering tools, each having a reflector to a first pipe such that the reflectors are either aligned with, or can be used to determine the location of the center of the first pipe and mounting one or more centering tools, each having a reflector to a second pipe such that the reflectors are either aligned with, or can be used to determine the location of the center of the second pipe. The method can further comprise determining a first distance between the center of the first pipe and a light emitting source at an observation point disposed between the first pipe and the second pipe and determining a second distance between the center of the second pipe and the light emitting source at the observation point.

Abstract: Provided are a device and a method for detecting flatness of a surface of a display panel. The device comprises: a bearing platform for bearing a display panel; an image acquisition unit that moves in a detection plane parallel to a bearing surface of the bearing platform and is used for focusing detection points preset in a surface of the display panel facing the image acquisition unit in a direction perpendicular to the bearing surface of the bearing platform, and sending a focal length to a data processing unit; and a data processing unit used for calculating a distance of each of the detection points from the detection plane according to the focal length, and then determining the flatness of the surface of the display panel. The damage and pollution to the display panel may be avoided according to the device and method of the present invention.

Abstract: Unique methods and systems are introduced herein for the determination of unique spatial light modulator based optical signatures of intrinsic and extrinsic scattering surface markers. These techniques can be used to authenticate semiconductor components and systems at various stages during the manufacturing process by measuring and cross correlating the surface marker's unique optical signature. In addition, these techniques can be used with extrinsic surface markers which are added to existing hardware (e.g. containers, locks, doors, etc.). These markers can then be measured for their unique optical signatures, which can be stored and used at a later time for cross-correlation to authenticate the surface marker and verify the hardware's provenance.

Abstract: An apparatus comprises an automated guided vehicle that moves on a surface of a composite structure during operation of the apparatus to inspect the composite structure, a surface inspection sensor system associated with the automated guided vehicle, and an automated guided vehicle and surface inspection sensor system controller in communication with the automated guided vehicle and the surface inspection sensor system.

Abstract: Methods and systems for determining overlay error between different patterned features of a design printed on a wafer in a multi-patterning step process are provided. For multi-patterning step designs, the design for a first patterning step is used as a reference and designs for each of the remaining patterning steps are synthetically shifted until the synthetically shifted designs have the best global alignment with the entire image based on global image-to-design alignment. The final synthetic shift of each design for each patterning step relative to the design for the first patterning step provides a measurement of relative overlay error between any two features printed on the wafer using multi-patterning technology.

Abstract: A distance detection apparatus includes an image sensor including a first image sensor pixel array and a second image sensor pixel array each including pixels, and a synchronization unit synchronizing operations of the first image sensor pixel array and the second image sensor pixel array. In an example, the distance detection apparatus and the camera module precisely align optical axes of the two cameras without a manufacturing process error and accurately calculate distance information while reducing processing requirements.

Abstract: A method is disclosed for performing calculations for an inclinometer device, as is a digital circuitry for performing such calculations. The circuitry comprises an interface for receiving detection signals from a sensor device and a CORDIC unit for performing calculation of inclinometer output values characterizing a resultant vector. The CORDIC calculation unit is configured to perform a calculation for resolving the angle between a resultant vector and a programmable reference value using hyperbolic CORDIC calculation. Pre-rotation may be performed for a vector before hyperbolic CORDIC arctangent calculation phases.

Abstract: Systems and methods are provided herein that provide for remote leveling and positioning. An embodiment includes a leveling device assembly having an electronic leveling device and a housing with an elongated housing body. The housing can include an elongated cavity body that defines a cavity with the electronic leveling device disposed within the cavity; a tip disposed at a first end of the cavity body; and a first and second arm that extend from a second end of the cavity body that each include a base portion coupled to the second end of the cavity body that defines a channel at the second end that opens into a coupling slot defined by respective arm shafts of the arms that extend from the base portions of the arm, the arms each extending to an arm head at a distal portion of the arms.

Abstract: A method comprises receiving data associated with a detection of the odor, the data associated with the detection of the odor comprising a location of the detection of the odor and a time of the detection of the odor, retrieving weather data corresponding to the detection of the odor, the weather data including a wind speed and direction in the location of the detection of the odor at the time of the detection of the odor, calculating a location of the source of the odor as a function of the location of the detection of the odor, the time of the location of the odor and the wind speed and direction in the location of the detection of the odor, and outputting to a user on a display a graphical representation of a likely area that includes the location of the source of the odor.

Abstract: A method comprises receiving data associated with a detection of the odor, the data associated with the detection of the odor comprising a location of the detection of the odor and a time of the detection of the odor, retrieving weather data corresponding to the detection of the odor, the weather data including a wind speed and direction in the location of the detection of the odor at the time of the detection of the odor, calculating a location of the source of the odor as a function of the location of the detection of the odor, the time of the location of the odor and the wind speed and direction in the location of the detection of the odor, and outputting to a user on a display a graphical representation of a likely area that includes the location of the source of the odor.

Abstract: A survey device may include a shaft portion having a longitudinal axis, a prism having a center point and being arranged near the top of the shaft portion and offset laterally relative to the longitudinal axis of the shaft portion, and a laser having a laser emission point in general alignment along the shaft portion with the center point of the prism.

Abstract: A method and apparatus for determining a rotational orientation of an object is provided. Embodiments of the present invention utilize an electrically conductive fluid enclosed within a shell attached to the object such that the conductive fluid contacts different portions of electrically conductive nodes, located on the inner wall of the shell, depending on the rotational orientation of the shell. The electrically activated nodes in contact with the conductive fluid act as sensors and individually transmit electric signals to a microcontroller for transformation into an indicator of a rotational orientation of the object. The indicator of the rotational orientation is then output.

Abstract: This vibration-type angular rate sensor corrects a sensor output from a secondary-side control circuit by adding, to a closed control loop of the secondary-side control circuit, an offset value based on the output of a closed control loop of a primary-side control circuit dependent on temperature.

Abstract: Systems and methods for a time-based optical pickoff for MEMS sensors are provided. In one embodiment, a method for an integrated waveguide time-based optical-pickoff sensor comprises: launching a light beam generated by a light source into an integrated waveguide optical-pickoff monolithically fabricated within a first substrate, the integrated waveguide optical-pickoff including an optical input port, a coupling port, and an optical output port; and detecting changes in an area of overlap between the coupling port and a moving sensor component separated from the coupling port by a gap by measuring an attenuation of the light beam at the optical output port, wherein the moving sensor component is moving in-plane with respect a surface of the first substrate comprising the coupling port and the coupling port is positioned to detect movement of an edge of the moving sensor component.

Abstract: A vibrator drive circuit is configured to drive a vibrator mass 3 in a prescribed vibration direction. The vibrator drive circuit includes a drive unit configured to drive a vibrator based on a reference signal SG1 of a predetermined frequency to cause the vibrator to vibrate in a vibration direction, a phase detector configured to detect a vibration waveform of the vibrator in the vibration direction and to output an output voltage Vcnt in accordance with a phase difference between reference signal SG1 and a vibration waveform thereof, and two capacitors each formed of a movable electrode provided in the vibrator and a fixed electrode provided to face the movable electrode, the output voltage Vcnt being applied to the fixed electrode. The phase detector is configured to adjust the output voltage Vcnt in accordance with the phase difference, thereby changing electrostatic force in each of the capacitors for controlling the phase difference to be 90 degrees.

Abstract: Waveguide includes fork with first and second bifurcated ends coupled to loop section and separated by angle determined based on velocities of portions of quantum mechanical wavefunction of atoms traveling above waveguide. Waveguide propagates blue-detuned laser having first evanescent field that repels atoms away from waveguide and red-detuned laser having second evanescent field that attracts atoms toward waveguide, together creating potential minimum/well. Laser cooling atoms, causing atoms positioned in potential minimum/well to move toward first fork section following potential minimum/well. Atomic state initialization section initializes atomic states of atoms to known ground-state configuration.

Abstract: A unit for improving positioning accuracy of an autonomous vehicle driving on a road includes a first computation unit configured to compute a first position of the vehicle at a time T1 using data from at least an inertial measurement unit (IMU); a second computation unit configured to compute a second position of the vehicle at the time T1 using data from at least one external sensor and a map; a comparison unit configured to compute a position difference between the computed first and second positions; a correction unit configured to correct an error parameter of the IMU, wherein the error parameter is used for correcting a third position of the vehicle computed by the first computation unit at a time T2 with the computed position difference at time T1, if the second computation unit is unable to compute a fourth position of the vehicle at the time T2.

Abstract: Disclosed are a system and method for a grid-based geo-fencing service. A grid-based geo-fencing service system includes a storage unit configured to store area information including one or more grids and a determination unit configured to receive location coordinates of a moving object and determine whether the moving object is present in an area with reference to the area information. According to embodiments of the present disclosure, it is possible to effectively reduce the amount of calculation needed by a geo-fencing service system to determine whether location-tracking data corresponds to a specified area and thus effectively respond to the processing of a large amount of location-tracking data collected in real time.

Abstract: A method, apparatus and computer program product are provided to determine the stacking order of two or more roads that are vertically aligned with one another. In the context of a method, error statistics associated with probe points representative of travel along a first road are determined. In an instance in which the first road is vertically aligned with a second road, the method also includes determining whether one of the first or second roads passes beneath the other of the first or second roads based at least in part upon the error statistics associated with the probe points representative of travel along the first road. A corresponding apparatus and computer program product are also provided.

Abstract: A method, apparatus and computer program product are provided to process probe data in accordance with a map-centric map matching technique. In the context of a method, a plurality of vertices are defined along a polyline representative of a road segment such that the polyline includes one or more edges. Each edge extends between a pair of neighboring vertices. For each vertex of a respective edge, spatial searches are conducted to identify each probe point within a region about a respective vertex. For each probe point identified within a region about a respective vertex, a determination is made as to whether the probe point satisfies a projection criteria in order for the probe point to be projected onto the edge or one of the neighboring vertices between which the edge extends.

Abstract: Methods and arrangements for identifying at least one anomaly in a path taken by a plurality of objects. A plurality of trajectories are input, wherein each trajectory comprises a data set indicative of a path taken by a plurality of objects from a starting point to an ending point, wherein the starting point and ending point are substantially similar for each trajectory. A plurality of sub-trajectories within the input trajectories are identified. There are identified, within the plurality of sub-trajectories, a set of sub-trajectories that are anomalous when compared to other sub-trajectories within the plurality of sub-trajectories, wherein the anomalous sub-trajectories deviate from a predetermined standard. A maximal anomalous sub-trajectory is identified from among the identified set of anomalous sub-trajectories. Other variants and embodiments are broadly contemplated herein.

Abstract: A method for region guided and change tolerant fast shortest path determination and graph preprocessing for network management and control. In an embodiment, a method includes partitioning, by a network component, a plurality of network nodes into a plurality of regions, each network node belonging to one of the regions; identifying, by the network component, border nodes for each region, each border node in a region connecting to at least one border node in a connecting region; determining, by the network component, intervals between regions according to the border nodes, each interval comprising a minimum distance and a maximum distance between two regions; determining, by the network component, a path from a source node to a target node according to the intervals.

Abstract: A method and apparatus are for determining a location of a new point of interest by determining demand information of a user based on retrieval data of the user. The retrieval data includes at least point of interest data, and the demand information includes at least a demand occurrence position. Supply information, including at least a supply region of existing points of interest are obtained based on the retrieval data. The demand information of the user is matched with the supply information of the existing points of interest to obtain the unsatisfied demand information of the user. The location of the new point of interest is determined based on the unsatisfied demand information of the user. The demand information for determining the location of a new point of interest is more accurate and comprehensive, and accuracy and reliability of the site selection of a new point of interest are improved.

Abstract: A route-determination module (RDM) is provided, with the RDM having as input one or more cognitive preferences of a traveler. Further, the RDM receives input on a current or a forecasted cognitive state of the traveler, along with the cognitive load associated with one or more potential routes for traveling to a destination. A recommended route is determined based on the preference(s), state, and/or cognitive load.

Abstract: A system is disclosed for providing a waste management app. The system may have a locating device disposed onboard a service vehicle and configured to generate a first signal indicative of a location of the service vehicle, an input device, and a controller. The controller may be configured to receive a route assignment including waste services to be performed by the service vehicle, and to track movement of the service vehicle during performance of the waste services based on the first signal. The controller may also be configured to provide a graphical user interface for display on the input device, listing the waste services from the route assignment to be performed by the service vehicle and showing a location of the service vehicle relative to at least one location at which the waste services are to be performed.

Abstract: The number of times of designation with respect to a position on a map is counted, and the number of times of designation is managed in association with the position and the map. If the number of times of designation with respect to a position of interest on the map exceeds a threshold value, a position that is managed in association with a large-area map including an area shown by the map is specified, and an object in the specified position on the large-area map is highlighted on the large-area map.

Abstract: A route-determination module (RDM) is provided, with the RDM having as input one or more cognitive preferences of a traveler. Further, the RDM receives input on a current or a forecasted cognitive state of the traveler, along with the cognitive load associated with one or more potential routes for traveling to a destination. A recommended route is determined based on the preference(s), state, and/or cognitive load.

Abstract: A computer implemented prediction and alert method automatically executable by a processing unit of a portable computing device. The method includes determining that an event begins from event information of the portable computing device, generating a list of likely event results based on current conditions of the event and historical data, alerting a user to an event result problem for each likely event result in accordance with first and second determinations as the event information indicates that an event decision of the event is upcoming, removing unlikely event results from the list once the event decision is passed and repeating the generating, alerting and removing until only a single event result remains on the list.

Abstract: A method for predicting a destination of a vehicle includes receiving vehicle data from a plurality of sensors, the vehicle data including at least a current location and a current time, determining a plurality of usage scenarios based on the vehicle data, accessing historical vehicle data and user data from a database, assigning, based on the vehicle data, a likelihood value to each of the plurality of usage scenarios, and predicting a set of destinations and routes for each of the plurality of usage scenarios.

Abstract: A pedometer system comprises a pedometer and a portable electronic device. The pedometer is located on a garment and comprises a sensor, a battery, a first transmission unit and a microcontroller. The sensor senses a number of completed paces of a user which walks or runs. The portable electronic device comprises a second transmission unit, a display screen, a processor and a storage device. The storage device is connected to the processor and stores a pedometer application program which has a number of target paces. When the number of completed paces greater than the number of target paces, the pedometer application program displays a preferential certificate by the display screen. Through the pedometer system, the present invention can increase motive of using pedometer regularly, then accomplish the purpose of maintaining health.

Abstract: A method and apparatus is disclosed for synchronizing a magnetic field transmitter and receiver to resolve phase ambiguity so that phase information for the position and orientation of the receiver may be derived and maintained. A synchronization process allows for the phase information to be initially derived based upon known information from other sources, and then tracked from one measurement to the next. In another embodiment, information from an inertial measurement unit (IMU) is used to determine the phase information or to correct for errors in the determination from receiver data of the position and orientation of a receiver, and prevent such errors from accumulating as the receiver moves away from a transmitter.

Abstract: A sensor system for detecting a position of a measuring object relative to a sensor, the system including a sensor for the provision of a measured value and an evaluation device for the evaluation of the measured value and for the provision of an evaluation result, wherein the evaluation device includes a comparison device and a timing element, the comparison device is configured for a comparison of a stored measured value with a currently detected measured value, the comparison device is configured for a provision of a control signal to the timing element if a result of the comparison meets a presettable criterion, the timing element is configured in such a way that a time measurement process is continued at the provision of the control signal and the time measurement process is started anew at an absence of the control signal, the timing element is configured in such a way that a trigger signal is output by the timing element on reaching a presettable period of time.

Abstract: A position detection device including a magnetic detection unit, a magnet, and a calculation unit that calculates a position detection signal based on a signal of the magnetic detection unit is provided. The magnet and the magnetic detection unit are relatively movable while maintaining a predetermined interval. The magnetic detection unit has a longitudinal magnetic field detection unit that detects a magnetic field in a separating direction between the magnetic detection unit and the magnet, and has a transverse magnetic field detection unit that detects a magnetic field in a moving direction of the magnet 1. A calculation unit 5 calculates a position detection signal based on a signal of the transverse magnetic field detection unit and a signal of the longitudinal magnetic field detection unit.

Abstract: A resolver includes: a stator core; and an insulator that is mounted on the annular stator core, wherein a terminal pin base that extends outward in a radial direction is integrally formed in the insulator, wherein a plurality of terminal pins are disposed on the terminal pin base, wherein each of the terminal pins has a first connecting portion at one end and a second connecting portion at the other end, wherein first and second covers are provided on the terminal pin base at each sides in an axial direction, wherein the first connecting portion and the second connecting portion of the terminal pin are sealed in a filler which fills a first space and a second space, the first space being formed between the first cover and the terminal pin base, and the second space being formed between the second cover and the terminal pin base.

Abstract: Disclosed herein is an electromagnetic induction sensor that is used with a position indicator and includes coils for electromagnetic coupling with the position indicator. The electromagnetic induction sensor includes: a sensor board main body that includes an insulating substrate and a surface sheet attached to a side of a first surface of the insulating substrate, on which side a position is indicated by the position indicator; at least part of conductors forming the coils being formed on a second surface of the insulating substrate opposite from the first surface; and an overlay member that includes a magnetic powder material layer and is adhered to the side of the second surface of the sensor board main body.