Abstract: A slip ring, in particular for use in a wind turbine, includes an axle extending in an axial direction and a contact region having a contact surface on a peripheral surface of the contact region and a recess extending in a tangential circumferential direction along the peripheral surface. The contact region includes an axial end face formed with an opening which communicates with the recess. The contact region includes three essentially cylindrical segments which define two covering segments and an intermediate segment arranged in a center between the two covering segment. Each of the two covering segments defines a radius which is larger than a radius of the intermediate segment so that a peripheral surface of the intermediate segment forms an underside of the recess. An insulating region is arranged adjacent to the contact region on the axle.

Abstract: An output control device includes an output component, a first switch and a second switch. The output component includes a first output coil used for controlling, when the first circuit is turned on and the second circuit is not turned on, the first output coil to enter a heating working state, and controlling, when the first circuit is not turned on and the second circuit is turned on, the first output coil to enter a power transmission working state. The first switch is located in the first circuit and used for turning on the first circuit when being closed. The second switch is located in the second circuit and used for turning on the second circuit when being closed.

Abstract: A joystick device 10 disclosed herein provides a return function for urging a lever 20 to its initial position. The device includes a first spring 30 and a second spring 40, each of which extends along the lever 20 and is disposed between an upper spring seat 32 and a lower spring seat 34. The springs 30 and 40 are subjected to compression to provide an urging force as the lever 20 is tilted from the initial position.

Abstract: A smart card includes an antenna to transmit and to receive a radio frequency signal, a rectifier to rectify a signal received through the antenna to output a rectified voltage, a voltage regulator to operate in a first operation mode for stabilizing a level of the rectified voltage and a second operation mode for generating an internal voltage using the rectified voltage, a regulator converter to control the voltage regulator to operate the voltage regulator in one of the first operation and the second operation according to a mode selection signal, a clamp circuit to connect an output terminal of the rectifier to a ground according to the mode selection signal, a load modulator to vary a resistance of the antenna to perform a load modulation, and a regulator controller to generate the mode selection signal according to whether the load modulator is activated or deactivated.

Abstract: A power reception device of a non-contact power feeding device has: a resonant circuit having a reception coil configured to receive electric power from a power transmission device and a resonant capacitor connected in series with the reception coil; a first rectifier circuit configured to rectify electric power received via the resonant circuit; a smoothing capacitor connected to the first rectifier circuit and configured to smooth a voltage outputted from the first rectifier circuit; a sub-coil arranged to be capable of being electromagnetically coupled to the reception coil; and a second rectifier circuit connected between the sub-coil and the smoothing capacitor, and configured to output electric power according to a voltage generated in the sub-coil to the smoothing capacitor in response to a voltage obtained by rectifying a voltage generated in the sub-coil being higher than a voltage between both terminals of the smoothing capacitor.

Abstract: An apparatus for measuring the angular position or the rotational movement of a shaft is described below. According to one exemplary embodiment, the apparatus has a first housing part and also a shaft which is arranged in the first housing part and can rotate about a rotation axis. The shaft has a bore which extends along the rotation axis from an end shaft of the shaft into the shaft. The apparatus further includes a magnet unit with at least one permanent magnet which is arranged within the bore and is fastened to the shaft, a second housing part with a projection which extends along the rotation axis into the bore, and also a magnetic field sensor element which is arranged in the interior of the projection of the second housing part.

Abstract: A radiofrequency communication module or semi-finished product able to be integrated into the structure of a tire comprises a radiofrequency transponder embedded in a rubber blend and comprising an electronic chip and a radiating antenna that is able to communicate with a radiofrequency reader. The radiofrequency transponder in addition comprises a primary antenna that is electrically connected to the electronic chip, the primary antenna is electromagnetically coupled to the radiating antenna, the radiating antenna consists of a single-strand helical spring, and the radiating antenna has a core made of steel coated with a metal exterior adhesion layer for adhesion to the rubber blend that surrounds it.

Abstract: An inductive position detector (IPD) for stylus position measurement in a scanning probe comprises a coil board configuration located along a central axis in the probe with a motion volume extending on opposite sides of the coil board configuration. The coil board configuration includes N top rotary sensing coils (RSCs) and a top axial sensing coil configuration (ASCC), and N bottom RSCs and a bottom ASCC. A pair of stylus-coupled conductive disruptors move along Z (axial) and X-Y (rotary) directions in the motion volume. A generating coil (GC) of the coil board configuration generates a changing magnetic flux (e.g., encompassing all or at least part of the disruptors), and coil signals indicate the disruptors and/or stylus positions. Areas of the conductive disruptors may be larger than an area of the generating coil in some implementations, and the conductive disruptors may each comprise a plurality of concentric conductive loops, spirals, etc.

Abstract: An inductive position detector (IPD) for stylus position measurement in a scanning probe comprises two substrates located along a central axis in the probe with a motion volume therebetween, each including N rotary sensing coils (RSCs) and respective axial sensing coil configurations (ASCC). A stylus-coupled conductive disruptor moves along Z (axial) and X-Y (rotary) directions in the motion volume. A generating coil (GC) generates a changing magnetic flux encompassing the disruptor and coils, and coil signals indicate the disruptor and/or stylus position. Axial projection of the disruptor defines axial sensing overlap area (ASOA) with the ASCC, and rotary sensing overlap areas (RSOAs) with respective RSCs. The IPD is configured such that the ASOA is independent of disruptor position, and N complementary pairs (CPs) of RSCs are provided, wherein the magnitude of the change in the RSOA in the two coils of a CP is the same for any disruptor displacement.

Abstract: The present invention provides sensor systems and methods of using the same. The sensor systems include implantable sensors and readers configured to communicate with the implantable sensors. The implantable sensors are attachable to catheters and work with the readers to determine the presence of fluid flow and to calculate an absolute measure of fluid flow rate within a catheter. The sensor systems are capable of monitoring the flow of CSF fluid within shunt catheters, such as hydrocephalus shunt catheters.

Abstract: A system for omni-orientational wireless energy transfer is described. A transmitter unit has a transmitter resonator with a coil that is configured to be coupled to a power supply to wirelessly transmit power to a receiver unit. A receiver unit has a receiver resonator with a coil coupled to a device load. At least one of the resonators is a non-planar resonator that spans a non-degenerate two-dimensional surface having at least one concave portion.

Abstract: A device for remotely supplying power, through magnetic induction, to a secondary module able to move in relation to a primary module along a predetermined path. An advantageous arrangement of the primary coils of the primary module and of a secondary coil of the secondary module furthermore allows the device to estimate the position of the secondary module. The primary coils are arranged such that: the primary coils form respective magnetic fields oriented in the same direction along their respective axes, during the movement, the inductive coupling between the first primary coil and the secondary coil evolves in the opposite way to the inductive coupling between the second primary coil and the secondary coil, the total inductive coupling existing between the primary coils and the secondary coil is substantially constant regardless of the position of the secondary coil.

Abstract: A load control system includes a load control device and a remote control for configuring and controlling operation of the load control device. The load control device and remote control may be mounted to an electrical wallbox. The system may be configured by associating the remote control with the load control device, and actuating a button on the remote control to configure the load control device. A second remote control device may be directly or indirectly associated with the load control device. The load control device and remote control may communicate via inductive coils that are magnetically coupled together. The remote control may be operable to charge a battery from energy derived from the magnetic coupling between the inductive coils. The load control device and remote control may include near-field communication modules that are operable to communicate wirelessly via near-field radiation.

Abstract: A radiofrequency transponder includes a radiating antenna and an electronic device. The radiating antenna is a single-strand helical spring forming a dipole antenna. The electronic device includes an electronic chip and a primary antenna, which are encapsulated at least partially in a rigid, electrically insulating mass. The primary antenna is electromagnetically coupled to the radiating antenna.

Abstract: A method and a device for inspecting an optoelectronic component are disclosed. In an embodiment, the method includes exciting at least one electromagnetic resonant circuit, formed by the at least one optoelectronic component and the connection board, such that the at least one optoelectronic component emits electromagnetic radiation, wherein exciting the electromagnetic resonant circuit comprises applying an electrical alternating voltage in the electromagnetic resonant circuit by generating a temporally variable electromagnetic alternating field by a first coil and a second coil, wherein the first coil and the second coil are movable with respect to the connection board.

Abstract: Methods and apparatus for wireless power transfer and communications are provided. In one embodiment, a resonator of a wireless power transfer system comprises a plurality of links connected to another with hinges to form a coil housing, the coil housing being adjustable at the hinges to conform to a body of a patient, and a flexible conductor wire attached to the coil housing, the flexible conductor wire being configured to transmit or receive wireless power. The resonator can be infinitely adjusted at the hinges to conform the shape of the resonator to a patient's body. In some embodiments, a locking mechanism can be configured to lock the resonator into a preferred position.

Abstract: An apparatus comprises a structure including a cavity that, when excited with electromagnetic energy, produces an electric field having randomized distribution of field amplitude and polarity. The apparatus further comprises a sensor within the cavity. The sensor has a plurality of antennas for wirelessly harvesting operating power along different paths within the cavity.

Abstract: A signal transmission method is provided. The method includes the following steps. First, an output signal filtered from a square wave signal by a high pass filter is received. Then, the output signal is sampled at each time interval, so as to generate the sampled values. Next, the sampled values are compared with at least one threshold to generate comparison results. Finally, a signal pattern corresponding to the output signal is identified according to the comparison results.

Abstract: A method for coding and identification of biological samples for in vitro fertilization comprises the steps of applying to receptacles intended for unfertilized eggs and sperm, respectively, an identification code characteristic of the patient; placing unfertilized eggs and sperm, respectively, in the receptacles; storing, transporting and admixing the respective samples in receptacles which each carry the same code; and implanting the resulting embryo in the patient. The identification code may based on RFID technology, in which sample vessels (12) are codified by the application of an RFID tag (13).

Abstract: A diagnostic system to monitor digital rod position indication (DRPI) signals of a DRPI system of a nuclear power plant, including a digital diagnostic unit connected between a DRPI display cabinet and a DRPI data cabinet of the DRPI system to monitor digital rod position signals of the DRPI data cabinet. The digital rod position signals include digital rod address signals and digital rod position data signals such that the digital diagnostic unit detects signal level variation and signal timing variation of the digital rod address signals and the digital rod position data signals to determine rod position errors of the DRPI system.

Abstract: An apparatus and method for communication using a wireless power are provided. The apparatus includes an amplifier configured to amplify an input signal based on a power supplied to the amplifier. The apparatus further includes a control unit configured to detect a change in an impedance of a target device, and to change the power based on the change in the impedance. The apparatus further includes a demodulation unit configured to receive a message from the target device, and to demodulate the message based on the changed power.

Abstract: A tire uniformity machine includes an apparatus for receiving and rotating a tire. The apparatus includes opposed spindles for receiving, inflating and rotating a tire, and a load wheel applied to the rotating tire to obtain tire test results. A spindle alignment assembly is associated with the opposed spindles to align the spindles with one another each time a tire is received. At least one characterizing device is associated with components of the apparatus to characterize forces of the opposed spindles and the characterized forces are used in adjusting tire test results.

Abstract: In a telemetry system (100) in a high-temperature environment of a combustion turbine engine (10), a wireless power-receiving coil assembly (116) may be affixed to a movable component (104) of the turbine engine. Power-receiving coil assembly (116) may include a radio-frequency transparent housing (130) having an opening (132). A lid (134) may be provided to close the opening of the housing. Lid (134) may be positioned to provide support against a surface (120) of the movable component. An induction coil (133) is disposed in the housing distally away from the lid and encased between a first layer (136) and a last layer (140) of a potting adhesive. Lid (134) is arranged to provide vibrational buffering between the surface (120) of the movable component (104) and the layers encasing the induction coil.

Abstract: An object of the present invention is to reduce the power consumption of a modulation circuit. The modulation circuit includes a load, a diode, and a transistor. An anode of the diode is electrically connected to one terminal of an antenna via the load; a cathode of the diode is electrically connected to one of a source and a drain of the transistor; the other of the source and the drain of the transistor is electrically connected to the other terminal of the antenna; and the transistor is controlled to be turned on or off in accordance with a signal input to a gate of the transistor.

Abstract: Valve comprising a shutter (2) rotating as one (A) with a shaft (3) and a sensor sensing the rotational position of the shaft (3), which comprises a target holder (4a) push-fitted onto the shaft (3), a plate (6) slipped onto the shaft (3), the target holder (4a) and the annular part (6a) being in one and the same plane.

Abstract: A system and method for improving power transmission is disclosed. Specifically, a system for improving power transmission can comprise a transmission pipe, a first transceiver, and a second transceiver. The transmission pipe can comprise a fluidic pipe and have a first length. The first transceiver can be connected to a proximal end of the transmission pipe. The second transceiver can be connected to a distal end of the transmission pipe, and each of said transceivers can be configured to communicate by a signal having a wavelength equal to two times the length of the transmission pipe, divided by an integer greater than or equal to one.

Abstract: Disclosed is a semiconductor device which performs signal transmission by using inductor coupling. The semiconductor device comprises one or more transmission and reception coil pair, each pair comprising a single transmission coil and a plurality of reception coils, or a plurality of transmission coils and a single reception coil, or a plurality of transmission coils and a plurality of reception coils.

Abstract: A telemetric system includes a telemetric implant, a reader unit adapted to read signals from the telemetric implant, and an antenna adapted for connection to the reader unit and to receive signals from the telemetric implant. The antenna has a first coil, a second coil, and a connector. The first coil is electrically connected to the second coil, and the connector allows for movement of the first and second coils relative to each other. The antenna may be used to send radio-frequency power to the telemetric implant and receives data from the telemetric implant.

Abstract: A method for improving a performance of a metal detector, including: generating a transmit signal; generating a transmit magnetic field based on the transmit signal for transmission using a magnetic field transmitter; sending a receive signal based on a receive magnetic field received by a magnetic field receiver to a processing unit of the metal detector; sending a communication signal, including information from a sensor, to the processing unit; and processing the receive signal with the communication signal to produce an indicator output signal indicating a presence of a target under an influence of the transmit magnetic field; wherein one or more characteristics of the communication signal are selected based on the transmit signal to reduce or avoid an interference of the communication signal to the receive signal.

Abstract: A non-invasive wireless communication system for monitoring parameters existing within the casing annuli of a subsea hydrocarbon production system. The subsea hydrocarbon production system includes a wellhead housing mounted at the upper end of a well bore and a number of concentric well casings extending from the wellhead housing through the well bore, and the casing annuli are formed between successive ones of the wellhead housing and the well casings The monitoring system comprises an interrogation package which is adapted to wirelessly transmit and receive NFM and/or inductive signals and at least one sensing package which is located in one of the casing annuli and is adapted to wirelessly receive the signals from and transmit response signals to the interrogation package.

Abstract: A method for operating a cryostorage device (100), especially for biological samples, is described which comprises a sample carrier (10) to receive at least one sample (11) and a data storage (20), wherein data are inductively transmitted from the data storage device (20) into a wireless transmission channel (40) and/or conversely using a resonant circuit (30) connected to the data storage device (20).

Abstract: A system is provided for transmitting data between a first component and a second component, which rotates relative to the first component. The system includes a first coupling element of limited angular extent mounted to the first component, and a second coupling element of limited angular extent mounted to the second component. The first and second coupling elements come into angular alignment once per revolution of the second component relative to the first component. The system further includes a first transceiver connected to the first coupling element, and a second transceiver connected to the second coupling element. The first and second transceivers are configured to detect the angular alignment of the first and second coupling elements. The first and second transceivers are further configured to transmit data between the first and second transceivers via the first and second coupling elements when the angular alignment is detected.

Abstract: A sensor system having a sensor module and an induction unit is provided, the sensor module having a first antenna, and the induction unit having a second and a third antenna, an induction transmission of signals being provided between the first and the second antenna, and the signals being sent and/or received electromagnetically by the third antenna.

Abstract: An apparatus is provided for wirelessly charging a portable electronic device. An embodiment of the apparatus includes an inductive charger with a housing having an internal compartment, wherein the internal compartment has a first lateral dimension, and a primary coil disposed within the internal compartment. The primary coil has a second lateral dimension that is less than the first lateral dimension, and the primary coil is slidably engaged within the internal compartment.

Abstract: In a method and system of remote metering the consumption of utilities like electricity, water or gas, each of a plurality of remote meters (RM) measures a consumption and reports the measured-consumption to a concentrator (C). The concentrator (C) communicates with a plurality of remote meters (RM) in order to collect consumption data and perform tasks related to the administration of its associated remote meters (RM). Each remote meter (RM) has a host controller (MCM) and a program memory storing programs for execution by the host controller (MCM). In order to update some or all of the application programs running on the host controller (MCM) of the remote meters (RM), the concentrator (C) transmits program data to the remote meters (RM), and the remote meters (RM) receive the program data and update at least a portion of the program stored in the program memory in accordance with the received program data.

Abstract: The invention relates to a rotary transmitter for example for use in machine tools with adjusting tools. The rotary transmitter comprises a stator part (18) and a rotor part (26), each having a respective stator core part (72) and a rotor core part (74), which are separated from one another at mutually facing ends via an air gap, and each having at least one respective power winding (76, 78), which is wound on the stator core part and the rotor core part, in order to transmit power using the transformer principle, and having respective stator and rotor coupling turns (80?, 80?, 82?, 82?), which are associated with one another in pairs, for inductive data transmission. One aim of the invention is to transmit data without interference. A further aim is a low maintenance requirement.

Abstract: A telemetric system (10, 300) is disclosed. The telemetric system (10, 300) includes a telemetric implant (400, 500), a reader unit (20) adapted to read signals from the telemetric implant (400, 500), and an antenna (12, 212, 312) adapted for connection to the reader unit (20, 320) and to receive signals from the telemetric implant (400, 500). The antenna (12, 212, 312) has a first coil (14, 214, 314), a second coil (16, 216, 316), and a connector (18, 318). The first coil (14, 214, 314) is electrically connected to the second coil (16, 216, 316), and the connector (18, 318) allows for movement of the first and second coils (14, 214, 314, 16, 216, 316) relative to each other. The antenna (12, 212, 312) may be used to send radio-frequency power to the telemetric implant (400, 500) and receives data from the telemetric implant (400, 500).

Abstract: Arrangement and method for electrically isolated transmission of direct-current and alternating-current signals. The signals can be transmitted in both directions via the same and only DC-isolated channel. The arrangement comprises a first transmit-and-receive system (1), a direct-current transmitter (4) in short-circuit mode, an operational amplifier arrangement (5), and a second transmit-and-receive system (2) with a message signal transmitter (9).

Abstract: An apparatus and method for registering a position of a component of a press is disclosed. The press having a plurality of components that can rotate about a central longitudinal axis, such as a main drive shaft and press cylinders, at least one of these components being assigned at least one position registering device, which registers the angular position of the respective component. The, or each, position registering device is formed as a magnetic rotary encoder.

Abstract: A sensor system having a sensor module and an induction unit is provided, the sensor module having a first antenna, and the induction unit having a second and a third antenna, an induction transmission of signals being provided between the first and the second antenna, and the signals being sent and/or received electromagnetically by the third antenna.

Abstract: A rotation detecting device that includes an electric power generator having a stator and a rotor, said rotor having a plurality of alternating opposite magnetic poles in a circumferential direction of the rotor, at least a first magnetic sensor mounted on either the stator or a support member for supporting the stator and operable to detect the alternating opposite magnetic poles in the rotor; and an electric power supply circuit for utilizing an electric power generated by the electric power generator as an electric power source for the at least first magnetic sensor.

Abstract: The invention relates to systems and methods that support object oriented access to information at multiple levels in a control architecture, for example. Such data access can be facilitated as a layer adjacent to or part of an MES system or as a white box cooperating to encapsulate data such as in the controller or the MES layer, for example. In addition, such object oriented data access can be built into a controller as a standard behavior of controller data types and tags of those data types. In this manner, data can be encapsulated as a data object to expose properties and/or methods related to the data utilizing a common interface with each data consumer. Thus, the data consumer can employ object oriented concepts, such as properties, methods, scope qualifiers, access qualifiers (private, protected, public enterprise), polymorphism, inheritance and the like directly with their automation system components.

Abstract: An apparatus includes a wireless transmitter modulating a carrier wave by transmission data and wirelessly communicating a signal, a wireless receiver mixing the wireless transmitter signal and a carrier wave and receiving the transmission data, a power carrier wave clock generator provided on one of the wireless transmitter and receiver generating a power carrier wave clock, a non-contact power transmitter transmitting power between the wireless transmitter and receiver through electromagnetic induction from the power carrier wave clock, a carrier wave generator mounted on the one of the wireless transmitter or receiver, and generating a carrier wave based on the power carrier wave clock, and a carrier wave reproducer mounted on the other of the wireless transmitter or receiver, and reproducing a carrier wave having the same frequency as the carrier wave based on a clock having the same frequency as the power carrier wave clock.

Abstract: The present invention relates to a gauging system, comprising a gauge configured to sense a process variable and to provide process data representative of the process variable, a processing unit connected to the gauge, the processing unit comprising power supply circuitry configured to receive power from a remote external power source and to provide regulated power, and first circuitry configured to receive process data from the gauge and to superimpose the process data onto the regulated power forming a power signal, and a wireless communication unit electrically connected to the processing unit by means of a two-wire control loop, the wireless communication unit comprising second circuitry configured to receive the power signal and to separate the process data from the regulated power, an antenna, and radio frequency (RF) communication circuitry being powered by means of the regulated power from the second circuitry, configured to receive process data from the second circuitry, and to transmit RF signals re

Abstract: In a method and system of remote metering the consumption of utilities like electricity, water or gas, each of a plurality of remote meters RM measures a consumption and reports the measured consumption to a concentrator C. The concentrator C communicates with a plurality of remote meters in order to collect consumption data and perform tasks related to the administration of its associated remote meters. Each remote meter has a host controller MCM and a program memory storing programs for execution by the host controller. In order to update some or all of the application programs running on the host controller of the remote meters, the concentrator C transmits program data to the remote meters, and the remote meters receive the program data and update at least a portion of the program stored in the program memory in accordance with the received program data.

Abstract: A telemetry system for use in a combustion turbine engine (10) having a compressor (12), a combustor and a turbine (16) that includes a sensor (50, 74) in connection with a turbine blade (18) or vane (22). A telemetry transmitter circuit (210) may be affixed to the turbine blade (18) with a first connecting material (52, 152) deposited on the turbine blade (18) for routing electronic data signals from the sensor (50, 74) to the telemetry transmitter circuit (210), the electronic data signals indicative of a condition of the turbine blade (18). An induction power system for powering the telemetry transmitter circuit (210) may include a rotating data antenna (202) affixed to the turbine blade (18) with a second connecting material (140) deposited on the turbine blade (18) for routing electronic data signals from the telemetry transmitter circuit (210) to the rotating data antenna (202).

Abstract: A communications protocol is used to provide data privacy, message integrity, message freshness, and user authentication to telemetric traffic, such as to and from implantable medical devices in a body area network. In certain embodiments, encryption, message integrity, and message freshness are provided through use of token-like nonces and ephemeral session-keys derived from device identification numbers and pseudorandom numbers.

Abstract: The invention relates to a rotary transmitter for example for use in machine tools with adjusting tools. The rotary transmitter comprises a stator part (18) and a rotor part (26), each having a respective stator core part (72) and a rotor core part (74), which are separated from one another at mutually facing ends via an air gap, and each having at least one respective power winding (76, 78), which is wound on the stator core part and the rotor core part, in order to transmit power using the transformer principle, and having respective stator and rotor coupling turns (80?, 80?, 82?, 82?), which are associated with one another in pairs, for inductive data transmission. One aim of the invention is to transmit data without interference. A further aim is a low maintenance requirement.

Abstract: An electronic apparatus for measuring water speed and water temperature then periodically transmitting said data during controlled depth fishing wherein an underwater probe is secured to and insulated conductive downrigger cable and gathers and relays data though the cable to a remote receiver/display unit disposed on the watercraft.

Abstract: A weighing section includes a plurality of weighing members and a power supply mechanism. The weighing members weigh an object while moving. The power supply mechanism includes a fixed section, a rotatable section moving along the movement of the weighing members, a primary coil provided on the fixed section, and a secondary coil provided on the rotatable section. The power supply mechanism supplies power to the primary coil, retrieves an induced electromotive force from the secondary coil, and supplies power to the weighing members.