Abstract: Provided is a method of manufacturing a sensor. The sensor has a casing having an opening portion, a clamp having a recessed part on its outer periphery and having one end inserted into the opening portion, and a sealing ring attached to the recessed part and disposed between the casing and the clamp. The method includes using a first divided mold to form a first component of the clamp, the first component including a main body portion and a first part located at one end side of the main body portion and forming a part of the recessed part. The first divided mold is divided so that a dividing surface intersects the main body portion and separates in an axial direction of the main body portion.

Abstract: An air gap of a rotation speed sensor is increased. A rotation speed sensor according to one embodiment includes: a sensor component having magnetic sensing elements; and a magnetic plate that is arranged between the sensor component and a magnet and that is made of a magnetic material. In a first direction that is a direction in which the sensor component, the magnetic plate and the magnet are arranged, the magnetic plate includes an opening that is formed at a position overlapping center of a line connecting respective centers of the magnetic sensing elements.

Abstract: The present disclosure relates to a navigation system for placing a medical device into a patient. The system may include an external unit configured to be disposed on a chest of the patient, the external unit having: a radiating element configured to produce a first radio frequency (“RF”) signal; and a plurality of three-axis sensors configured to receive a second RF signal. The system may also include a medical device such as a catheter. The catheter may have: a first antenna configured to receive the first RF signal and produce an alternating current; a rectifier configured to convert the alternating current into a direct current; a frequency generator configured to produce a second RF signal that is received by the plurality of three-axis sensors. The RF signals received by the plurality of three-axis sensors may be used to determine a position of the catheter relative to the external unit.

Abstract: A near magnetic field variation detection method comprises following steps of: measuring magnetic field by a first magnetic field sensor and a second magnetic field sensor respectively; and calculating a magnetic field measurement difference, wherein the magnetic field measurement difference is (1) a magnitude of a difference of a first-magnetic-field-measurement measured by the first magnetic field sensor and a second-magnetic-field-measurement measured by the second magnetic field sensor, or (2) a magnitude of a difference of a first-magnetic-field-measurement-component measured by the first magnetic field sensor along a characteristic direction and a second-magnetic-field-measurement-component measured by the second magnetic field sensor along the characteristic direction; wherein a near magnetic field variation is occurred when (a) the magnetic field measurement difference is continuously greater than a characteristic-threshold within a characteristic-time-period, or (b) an average value of the magnetic f

Abstract: This proximity sensor includes: a cylindrical housing having an opening at one end in the axial direction; a detection part housed at the other end of the housing and detecting the presence or absence of a detection target contactlessly; a substrate housed in the housing and mounted with a control circuit for controlling the detection part; a detection part shield preventing external noise from entering the detection part and including a first face part adhered to the front surface on the other side of the detection part, and a side face part configured from multiple side pieces connected to the outer periphery of the first face part and bent from the first face part to cover the side surface of the detection part; and a resin provided around the detection part and the detection part shield.

Abstract: A method and system of magnetic fingerprinting for mobile device indoor navigation and positioning. The method, executed in a processor of a server computing device, comprises generating a magnetic infrastructure profile of at least a portion of the indoor area; determining, in the processor, a magnetic field profile based on the magnetic infrastructure profile; and generating an association of magnetic field profile parameters associated with respective locations within the indoor area as the magnetic fingerprint map.

Abstract: A drive pulley for a continuous conveyor includes an inner drum and a traction drum disposed along an outer peripheral surface of the inner drum. The traction drum has a thickness in a radial direction relative to the axle that is subject to wear during driving contact between the traction drum and a conveyor belt. At least one sensor is embedded in the traction drum. The at least one sensor has an outer wear surface that coincides with an outer surface of the traction drum. The at least one sensor is configured to wear such that the outer wear surface of the at least one sensor is adapted to wear at a same rate as the outer surface of the traction drum. The at least one sensor is configured to generate a wear signal that is indicative of wear of the traction drum.

Abstract: According to one embodiment, a magnetic sensor includes a first element, a first wire, and a first magnetic part. The first element includes a first magnetic layer, a first counter magnetic layer, and a first nonmagnetic layer provided between the first magnetic layer and the first counter magnetic layer. A direction from the first counter magnetic layer toward the first magnetic layer is along a first direction. The first wire extends in a second direction crossing the first direction. The first magnetic part includes a first region and a first counter region. At least a portion of the first wire is between the first region and the first counter region in the first direction.

Abstract: A wireless communication apparatus includes a phase detecting unit configured to detect a signal change point at which a signal decoded from a received wireless signal changes and detect a temporal position of the signal change point within one cycle defined by setting of a symbol rate as a phase, a vector generating unit configured to generate a vector which corresponds to the detected phase and which has a predetermined magnitude, a vector synthesizing unit configured to synthesize the generated vector in plurality to generate a synthesized vector, a calculating unit configured to calculate a parameter having a correspondence relationship with a magnitude of the generated synthesized vector, and a judging unit configured to judge whether or not a wireless signal is a specific wireless signal based on the calculated parameter.

Abstract: The present invention relates to a method for calibrating magnetometers (20) of an object (1) moving in an ambient magnetic field, the method being characterised in that it comprises the steps of: (a) Acquisition by the magnetometers (20), of at least three measured components of the magnetic field around the magnetometers (20), and by inertial measurement means (11) which are secured to the object (1), of an angular velocity of the object (1); (c) Determination, by data processing means (21), of values of at least one calibration parameter of the magnetometers (20) minimising an expression defined by estimated components of the magnetic field and at least one magnetic equation relating to the angular velocity of the object (1), the estimated components of the magnetic field being a function of the measured components of the magnetic field as well as of calibration parameters of the magnetometers (20), and the at least one magnetic equation assuming that the magnetic field is uniform and stationary aro

Abstract: A correction apparatus for an angle sensor includes a correction processing unit, an indicator value generation unit, and a correction information determination unit. The correction processing unit performs correction processing on a plurality of detection signals to reduce an error of a detected angle value. The details of the correction processing are determined according to correction information. The indicator value generation unit generates, on the basis of the plurality of detection signals, an indicator value having a correspondence with the error of the detected angle value. The correction information determination unit generates an estimated indicator value using a function that takes one or more values each having a correspondence with the correction information as one or more variables, and determines the correction information by adaptive signal processing so as to reduce the difference between the indicator value and the estimated indicator value.

Abstract: To provide a motor drive control device, an electric power steering device, and a vehicle which can individually diagnose abnormalities of magnetic detection elements, designed in a multisystem configuration to include at least two systems, for each system. A motor drive control device includes two systems of first and second rotation information detection function units. The first and second rotation information detection function units include first and second rotation position information detection units and first and second rotation information detection units. The first and second rotation information detection units individually diagnose their own abnormalities based on first and second motor rotation position signals detected by the first and second rotation position information detection units.

Abstract: A positioning system to position a structure comprises an actuator and a control unit to control the actuator in response to a position setpoint received by the control unit. The actuator comprises a magnet assembly comprises a magnet configured to provide a magnetic flux, and a coil assembly, wherein the coil assembly and the magnet assembly are movable relative to each other, the coil assembly comprising a coil, an actuation of the coil by a drive current providing for a force between the magnet assembly and the coil assembly. The magnet assembly comprises a further electric conductor, the further electric conductor comprising a non-ferromagnetic electrically conductive material, wherein the further electric conductor is magnetically coupled to the coil of the coil assembly and forms a short circuit path for an inductive electrical current induced in the further electric conductor as a result of an actuator current in the coil.

Abstract: A rotational angle sensor includes a stator element and a rotor element. The stator element has a transmitting coil and at least two receiving coils that are arranged within the transmitting coil and on a circuit board. The rotor element is mounted for rotation with respect to the stator element about an axis of rotation. The rotor element is configured to inductively couple the transmitting coil to the at least two receiving coils in such a way that the inductive coupling is dependent on a rotational angle between the stator element and the rotor element and the transmitting coil induces at least two angle-dependent alternating voltages in the at least two receiving coils. The rotor element and the at least two receiving coils are configured in such a way that an alternating voltage, the amplitude of which is sinusoidally dependent on the rotational angle, is induced in the receiving coils.

Abstract: A position sensor system for measuring a position of a target movable outside a plane, the system comprising: a first magnetic sensor and a second magnetic sensor fixedly arranged in the plane and spaced apart by a distance; the first respectively second magnetic sensor adapted for measuring at least one first respectively second in-plane magnetic field component in the plane to obtain at least a first respectively second value; a controller connected to the sensors for obtaining the values, and adapted for determining the out-of-plane position as a function of the values and of the predefined distance. A method is provided for determining the position.

Abstract: Systems and methods for positioning a terminal device are disclosed. The method may include determining, by a positioning device, a first position of the terminal device in an area at a first time point; determining, by the positioning device, a second position of the terminal device in the area at a second time point; determining, by the positioning device, a plurality of hypothetical positions of the terminal device at a third time point; and providing, by the positioning device, a third position of the terminal device at the third time point, based on the first position, the second position, and the hypothetical positions using a transition model.

Abstract: A medical tracking system comprising at least two sensor devices which are independently maneuverable and can be positioned in a fixed position relative to targets, each sensor device comprising at least one of an orientation sensor and a position sensor for respectively determining sensor data, the system further comprising a control unit configured to receive and combine the at least two sensor data of the at least two sensor devices in order to determine a relative position between at least two of the at least two sensor devices.

Abstract: A brush holder assembly for use in an electrical generator having a moving conductive surface may include a brush holder, such as a brush box, that is configured to be removably mounted to a mounting element on the electrical generator. A carbon brush may be slidingly disposed with the brush holder and may be biased into sliding contact with the moving conductive surface. The brush holder assembly includes a handle that is moveable between an unlocked position in which the brush holder is removable from the mounting element and a locked position in which the brush holder is secured relative to the mounting element. A circuit board is disposed within the handle and includes a sensor that provides an indication of an occurrence of an anomalous and/or threshold condition of the carbon brush.

Abstract: A position detection circuit is connected to a capacitive touch sensor that includes a plurality of line electrodes arranged in a two-dimensional lattice pattern. The position detection circuit includes: at least one processor device; and at least one memory device storing processor-executable instructions which, when executed by the processor device, cause the position detection circuit to: acquire capacitance-related detection values at crossing points of the line electrodes in association with positions of the crossing points; calculate a number of crossing points at which a detection value is smaller than a first threshold for each of the line electrodes; and determine that one or more of the line electrodes for which a calculated number of crossing points is greater than a second threshold are anomalous or possibly anomalous.

Abstract: Athletic activity monitoring methods and systems are disclosed. In one embodiment, a sensor module is physically coupled to an object during an athletic activity conducted by a user. An athletic activity monitoring method for use with the sensor module includes the steps of detecting movement of the object, recording movement data, identifying a matching athletic motion from a plurality of reference motions by comparing the movement data to data associated with the plurality of reference motions, and providing an output to the user that conveys the identity of the matching athletic motion.

Abstract: An NMR spectroscopy system for studying a region of a sample to be analysed, includes a magnetoresistive transducer made up of superposed planar layers, which receives a response signal of the sample; a system for making an AC current flow, at a supply frequency fc, through the transducer; a system for generating a magnetic field H0 that is constant and uniform throughout a zone of interest in which the sample and transducer are placed; and an exciting coil to generate a magnetic field H1 that is uniform throughout the zone of interest and that varies at a resonant frequency f1; the field H0 is substantially perpendicular to the layers of the transducer. The system further includes a regulating system to ensure that the field H0 and the planar layers remain orthogonal, and a system for detecting a signal of frequency fc?f1, f1?fc or fc+f1.

Abstract: The invention discloses an inductive torque sensor and a combined inductive torque and angle sensor for position sensing. The object of the invention to propose a torque sensor as well as a combined torque and angle sensor which does not require a shielding of the sensor PCB and which can provide a plausibility check of the torque sensor when using only three sensors will be solved by an inductive torque sensor for detection of torque movements comprising a stationary printed circuit board (PCB) with sensing coils, a primary target and a secondary target, whereas the primary target and secondary target each comprise of different metallic patterns, whereas each target covers 50% of the sensing coils and the combined coverage of both targets varies between 50% and 100% depending on the relative position between the two targets.

Abstract: A rotary encoder may include a first sensor unit comprising a first magnet, and a first magnetosensitive unit facing the first magnet; a second sensor unit comprising a second magnet, and a second magnetosensitive unit facing the second magnet; a circuit to generate pulses; a counter to count the pulses; a first arithmetic unit to calculate a first angle value based on an output of the first magnetosensitive unit; and a second arithmetic unit to calculate a second angle value based on an output of the second magnetosensitive unit. One of the first magnet and the first magnetosensitive unit is provided in the fixed body and the other is provided in the rotating body. One of the second magnet and the second magnetosensitive unit is provided in the fixed body and the other is provided in the rotating body.

Abstract: A system and method of for estimating the depth of a marker may include a marker locator. The marker locator may include a first transmitter that generates a first activation signal, second transmitter that generates a second activation signal, a receiver that detects first and second response signals, and a processor that determines a depth of a marker based on the first and second response signals. The first transmitter is located at a first position, and the second transmitter is located at a second position apart from the first position. The first and second response signals respectively correspond to the first and second activation signals. The processor is coupled to the receiver. According to some embodiments, the first and second activation signals and the first and second response signals may be separated by time division multiplexing.

Abstract: In a wrist terminal 1, the measurement information acquiring unit 51 acquires position information. The first timing detection unit 52 detects a standby state for a sport. The second timing detection unit 53 detects predetermined start timing of the sport. If the first timing detection unit 52 detects the standby state, the recording control unit 54 makes the measurement information acquiring unit 51 start acquiring position information to continue acquiring position information sequentially at predetermined intervals. If the second timing detection unit 53 detects the predetermined start timing, the recording control unit 54 stores position information being part of the position information already acquired by the measurement information acquiring unit 51 and corresponding to the predetermined start timing into a ROM 16 or a removable medium 31.

Abstract: A gap compensated torque sensing system and methods for using the same are provided. The system can include a magnetostrictive torque sensor and at least one proximity sensor in communication with a controller. The proximity sensor can be substantially rigidly coupled to a sensor head of the torque sensor, either contained within the sensor head or mounted proximate to the sensor head using a bracket or other coupling mechanism. The torque sensor can sense magnetic flux passing through the target and the proximity sensor can measure a gap between itself and the target. The controller can estimate torque applied to the target from magnetic flux sensed by the torque sensor. The estimated torque can be modified by the gap measurement to compensate for changes in magnetic properties of the target due to variations in the gap. In this manner, the accuracy of the torque measurements can be increased.

Abstract: A magnetostrictive displacement measuring apparatus is proposed, comprising at least one measuring probe which is of flexurally flexible configuration and comprises a waveguide, and comprising a magnetic position marker which couples to the at least one measuring probe in a non-contact manner, wherein the waveguide is supported in an elastic, flexible support tube and the flexible support tube is positioned in a carrier tube, wherein the flexible support tube is, on an outer side thereof, provided with indentations facing the carrier tube and wherein material of the carrier tube is arranged in the indentations.

Abstract: A magnetic sensor may include one or more sensor components to detect a system-level error, associated with a sensor system that includes the magnetic sensor, based on a set of signal characteristics of a waveform corresponding to a magnetic field present at the magnetic sensor. The one or more sensor components may provide an indication of the system-level error in an output signal.

Abstract: A computer-implemented method for determining an indication of a location of a first device in a vehicle is presented. A determination may be made of when a second device in the vehicle transmits a signal. When the second device transmits the signal, an indication of a direction of orientation of the first device may be determined. The indication of the direction of orientation of the first device may be affected by the signal being transmitted by the second device. The indication of the location of the first device in the vehicle may be determined based on an indication of a direction of motion of the vehicle and the indication of the direction of orientation of the first device. The indication of the location of the first device may include an indication of whether the first device is associated with a driver seat of the vehicle.

Abstract: A system includes a plurality of magnetometers that are each configured to generate a vector measurement of a magnetic field. The system also includes a central processing unit that is communicatively coupled to each of the magnetometers. The central processing unit is configured to receive from each of the plurality of magnetometers the respective vector measurement of the magnetic field. The central processing unit is further configured to compare each of the vector measurements to determine differences in the vector measurements and to determine, based on the differences in the vector measurements, that a magnetic object is near the plurality of magnetometers.

Abstract: To provide a motor drive control device, an electric power steering device, and a vehicle which can individually diagnose abnormalities of magnetic detection elements, designed in a multisystem configuration to include at least two systems, for each system. A motor drive control device includes two systems of first and second rotation information detection function units. The first and second rotation information detection function units include first and second rotation position information detection units and first and second rotation information detection units. The first and second rotation information detection units individually diagnose their own abnormalities based on first and second motor rotation position signals detected by the first and second rotation position information detection units.

Abstract: A method for determining a position of a movable element of a linear actuator of a motor vehicle includes supplying a current to a coil of the linear actuator so as to move and/or hold the movable element by a magnetic field of the coil generated by the supplied current; modulating the current supplied to the coil with an electrical alternating variable having a predetermined frequency; determining an impedance or an admittance of the coil at the predetermined frequency by measuring a further variable at the predetermined frequency; and determining the position of the movable element as a function of the determined impedance or admittance.

Abstract: The presence or absence of objects (e.g., medical implements, medical supplies) tagged with transponders may be determined in an environment in which medical procedures (e.g., surgery) are performed via an interrogation and detection system which includes a controller and a plurality of antennas positioned along a patient support structure. The antennas may, for example, be positioned along an operating table, bed, a mattress or pad or a sheet and may be radiolucent. Respective antennas may successively be activated to transmit interrogation signals. Multiple antennas may be monitored for responses from transponders to the interrogation signals. For example, all antennas other than the antenna that transmitted the most recent interrogation signal may be monitored.

Abstract: Various embodiments include a position sensor configuration that compensates for a bias field offset. The position sensor configuration may be used for position sensing of components, such as camera components, that are movable via an actuator (e.g., a voice coil motor actuator). In some embodiments, the actuator may include an asymmetric magnet arrangement that produces an asymmetric magnetic field. The asymmetric magnetic field may include one or more bias field components that are offset relative to one or more axes. In some examples, the position sensor configuration may include one or more magnetic field sensor packages. Individual ones of the magnetic field sensor packages may include a magnetic field sensor and one or more compensation magnets. The compensation magnets may be configured to contribute to one or more compensation magnetic fields that counteract the bias field components such that the compensation magnetic fields compensate for the bias field offset.

Abstract: A semiconductor device includes a semiconductor substrate having a plurality of Hall elements formed therein, and a magnetic body formed on the semiconductor substrate and having a magnetic flux converging function. The contour in vertical cross-section of the magnetic body on the semiconductor substrate has an outer circumferential portion. At least a part of the outer circumferential portion has a portion having an approximate quadrant shape, and a portion contiguous to the approximate quadrant portion and substantially parallel to the semiconductor substrate.

Abstract: Implantable medical devices automatically switch from a normal mode of operation to an exposure mode of operation and back to the normal mode of operation. The implantable medical devices may utilize hysteresis timers in order to determine if entry and/or exit criteria for the exposure mode are met. The implantable medical devices may utilize additional considerations for entry to the exposure mode such as a confirmation counter or a moving buffer of sensor values. The implantable medical devices may utilize additional considerations for exiting the exposure mode of operation and returning to the normal mode, such as total time in the exposure mode, patient position, and high voltage source charge time in the case of devices with defibrillation capabilities.

Abstract: An arrangement for measuring a force and/or a torque (Mt) on a machine element extending along an axial axis is disclosed. The machine element has a cavity and at least one magnetization region, extending circumferentially around the axial axis in an axial section. The arrangement further includes at least one first magnetic field sensor, a second magnetic field sensor, a third magnetic field sensor and a fourth magnetic field sensor, each of which is designed to individually measure an axial direction component of a magnetic field caused by the magnetization and also by the force or torque (Mt) and each of which lies in the axial section. At least the first magnetic sensor and the second magnetic sensor are arranged in the cavity of the machine element.

Abstract: A defect inspection method includes an illumination light adjustment step of adjusting light emitted from a light source, an illumination intensity distribution control step of forming light flux obtained in the illumination light adjustment step into desired illumination intensity distribution, a sample scanning step of displacing a sample in a direction substantially perpendicular to a longitudinal direction of the illumination intensity distribution, a scattered light detection step of counting the number of photons of scattered light emitted from plural small areas in an area irradiated with illumination light to produce plural scattered light detection signals corresponding to the plural small areas, a defect judgment step of processing the plural scattered light detection signals to judge presence of a defect, a defect dimension judgment step of judging dimensions of the defect in each place in which the defect is judged to be present and a display step of displaying a position on sample surface and the

Abstract: Techniques for managing operation in cloud computing systems are disclosed herein. In one embodiment, a method can include receiving data representing a guaranteed value of a performance metric of a cloud service and an error budget and deriving a switching threshold based on a combination of the value of the performance metric and the error budget. The method also includes determining a current value of the performance metric of the cloud service and causing the cloud computing system to selectively switch between operational modes for providing the cloud service based on a comparison between the determined current value of the performance metric and the switching threshold.

Abstract: A method of determining the angular orientation of headgear is described. The headgear has tracking points being at least four tracking points, the relative position of the tracking points is calibrated and stored as relative position information, each of the tracking points comprises an infra-red (IR) reflective point. Light reflected from at least some of the tracking points of the headgear is filtered to allow only light in an IR wavelength band to pass. The filtered IR light is imaged to provide a detected image including at least some of the tracking points. At least some of the tracking points in the detected image are identified, and the position of the identified tracking points in the detected image is determined. The angular orientation of the headgear is determined in multiple different angular directions based on the stored relative position information and the position of the identified tracking points.

Abstract: An absolute position detecting device and method are provided. The absolute position detecting device utilizes the incremental magnetization on a magnetic encoding ruler with two different pole widths, such that elliptical Lissajous curves may be obtained by magnetoresistive sensors. The absolute position may be obtained by determining the region of the signals on the ellipses read by the magnetoresistive sensors.

Abstract: Sensing devices, systems and methods for securing articles against tampering using a unique magnetic field signature measured at two different times are provided. One or more sensing devices are secured to a ferrous surface portion of a target container. The sensing devices are secured using a plurality of magnets. The unique magnetic field signature sensed by a sensing device is produced by a combination of the plurality of magnets of the sensing device and the ferrous surface portion of the target container and earth's magnetic field. The two different times being one of a baseline measurement session and one of an observation measurement session. An observation measurement session may be triggered by a shock event or periodically.

Abstract: Non-contact position and motion sensing is improved for oscillator frequency based sensors in response to adding a two phase calibration along with bootstrapping circuit. Calibration is performed across the multiple sensor channels, so that: (1) maximum sensor channel loading is determined, and (2) the amount of capacitive load required for each other channel to match this same maximum load is stored for application to that channel during non-contact sensing. Capacitive coupling between channels is nullified by a bootstrapping process, in which time-domain voltage on the active channel is replicated on the non-active channels during non-contact sensing, thus creating equal potentials across inter-channel couplings that effectively eliminate inter-channel capacitive loading.

Abstract: A magnetic sensor has a circuit segment with a quadrupole region. The quadrupole region includes a supply line, a first return line and a second return line, all in a conductor layer. The first supply line is laterally adjacent to the supply line on a first side, and the second return line is laterally adjacent to the supply line on a second, opposite side. A space between the supply line and the first return line is free of the conductor layer; similarly, a space between the supply line and the second return line is free of the conductor layer. The first return line and the second return line are electrically coupled to the supply line at a terminus of the circuit segment.

Abstract: A method for locating utensils involves (step a) measuring, by magnetometers, of the amplitude of the magnetic field, and (step b) estimating, with the magnetometer measurements the positions, orientations and amplitudes of the magnetic moments of the objects of the utensils. The method also includes (step c) detecting each immobile utensil and, in response, adding the immobile utensil to a list, and (step d) establishing measurements from the magnetometers when they are exclusively in the presence of a reference magnetic field generated only by magnetic objects of all the immobile utensils in the list of immobile utensils. The method further includes (step e) calculating the amplitude of a disturbance on the basis of the differences between the measurements performed in step a) and the measurements established in step d). If the amplitude of the disturbance crosses a predetermined threshold, step b) is executed, otherwise the method returns to step a).

Abstract: To provide an electronic apparatus having particularly excellent environmental resistance. An electronic apparatus includes a case, a cable drawn out from the case, a bonding intermediating member that is made of a resin and joined to the cable, a cylindrical clamp holding the cable, and a sealing resin part filling an internal space defined by the case and the clamp. The cable has a core wire and a sheath that is made of a resin covering the core wire and the core wire is exposed not to be covered by the sheath at an end of the cable. The bonding intermediating member has a cylindrical base covering an outer circumferential face of the sheath and a cylindrical protrusion protruding toward a tip side of the cable. All of an inner circumferential face and an outer circumferential face of the protrusion and an end face at a tip side of the protrusion in an axial direction are covered by the sealing resin part.

Abstract: Buried utility transmitters and associated locator devices, systems, and methods used for locating utility lines, pipes, and/or other conductors that are obscured from view are disclosed. In one embodiment a buried utility transmitter includes a module generating an output current for provision to the utility so as to generate a magnetic field for detection by a utility locator, with the output current signal having modulated signaling. The transmitter system may include a tray apparatus configured to be removably dockable to the transmitter module or element or a body or frame of the transmitter system.

Abstract: A magnetic communications transmitter includes a magnetic field generator and a controller. The magnetic field generator is configured to generate a magnetic field. The controller is configured to control the magnetic field generator by controlling an electrical current supplied to the magnetic field generator, and causing the magnetic field generator to generate an optimized variable amplitude triangular waveform.

Abstract: An improved wireless transmission system for transferring power over a distance. The system includes a transmitter generating a magnetic field and a receiver for inducing a voltage in response to the magnetic field. In some embodiments, the transmitter can include a plurality of transmitter resonators configured to transmit wireless power to the receiver. The transmitter resonators can be disposed on a flexible substrate adapted to conform to a patient. In one embodiment, the polarities of magnetic flux received by the receiver can be measured and communicated to the transmitter, which can adjust polarities of the transmitter resonators to optimize power transfer. Methods of use are also provided.

Abstract: A sensor operates to produce a differential signal with a voltage regulated that generates a regulated voltage to a first sensor element for detecting a physical parameter. A current mirror circuit is configured to provide a first sensor current to the first sensor element, detect the first sensor current at the first sensor element and duplicate the detected current to provide a second sensor current to a second sensor element. The second sensor element detects the physical quantity with the replicated current.