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| Number | Title | Issue Date |
| 8164326 | Non-contact sensor system and method for velocity determination A non-contact sensor system is provided that comprises a first sensor element disposed within a first member having an axis Y, and a second member configured to rotate about the axis Y at a value X. The second member is configured to interface with the first member.... | 04/24/2012 |
| 8125215 | Measuring vibrations of a turbo-machine rotor blade with the help of an induction sensor in high temperature A method is disclosed of measuring vibrations on turbo-machine rotary turbine blades utilizing an induction sensor at high temperatures. A set of magnets produces a magnetic field which results in a measurement signal generated in the sensor's coil which then can be... | 02/28/2012 |
| 8098060 | Systems, methods and apparatus for position sensor digital conditioning electronics Systems, methods and apparatus are provided through which in some implementations determine the amplitude of an amplitude modulated signal, modulated by the position of an object being sensed. In some aspects, the apparatus accepts an excitation signal and the ampli... | 01/17/2012 |
| 8098061 | Linear inductive position sensor A linear position sensor having a transmitter coil which generates electromagnetic radiation when excited by a source of electrical energy and wound in a first direction. A receiver coil is contained within the transmitter coil and the receiver coil includes both a ... | 01/17/2012 |
| 8067934 | Measurement device for measuring a magnetic field A measuring device to measure a magnetic field having at least one measuring coil and at least one sensor to measure low-frequency magnetic fields, which measuring coil and which sensor have their planes of extension each positioned or positionable transverse to the... | 11/29/2011 |
| 7969141 | Inductive proximity sensor and related methods An inductive proximity sensor or switch and a method of using same. The sensor or switch includes an Application Specific Integrated Circuit (“ASIC”) and a plurality of external components. The ASIC is implemented in CMOS technology and has an oscillator. A swit... | 06/28/2011 |
| 7911202 | Electromagnetic tracking method and system Provided is an electromagnetic coil arrangement comprising a set of electromagnetic sensors at fixed locations with respect to each other, each of the electromagnetic sensors comprising a planar coil coupled to a conductive layer, the planar coil comprising non-conc... | 03/22/2011 |
| 7852066 | Apparatus for measuring the relative position of two parts Apparatus for measuring the relative position of two parts with a deformable coil, which is connected to both parts and deforms according to their relative position, wherein the inductance of the coil depends on shape and is thus a measure of the relative position, ... | 12/14/2010 |
| 7847539 | Inductive proximity sensor The invention relates to an inductive proximity sensor with a sensor element which includes a resonant circuit which provides an output signal which depends on the damping by an electrically conductive object. In accordance with the invention, the inductive proximit... | 12/07/2010 |
| 7825655 | Inductive proximity sensors and housings for inductive proximity sensors An inductive proximity sensor includes a sensor housing, a sensing coil and an evaluation circuit. The sensor housing may generally include a sensing portion and a body portion. The evaluation circuit may be electrically coupled to the sensing coil and disposed in t... | 11/02/2010 |
| 7816911 | Electromagnetic sensor systems A variable inductance position sensor is described. The sensor includes a housing that is typically cylindrical in shape. The housing includes an open end and a closed end forming a cavity therein. A coil support member is affixed at one end to the closed end of the... | 10/19/2010 |
| 7777481 | Linear motion assembly having a self-energizing sensing device and method of detecting moving ferrous elements in a linear motion assembly A self-energizing, non-contacting sensing device for detecting movement of ferrous elements, methods of use and assemblies therewith. The device includes a permanent magnet, a pair of ferrous conductors, an inductor coil and a microprocessor. The ferrous conductors ... | 08/17/2010 |
| 7768256 | Method and device for secure monitoring of a distance The invention relates to a method for securely monitoring a distance between a metallic part and an inductive proximity sensor, in particular for monitoring a closed position of a guard door in an automated system, said method having the steps of: providing an oscil... | 08/03/2010 |
| 7750623 | Method and device for locating the right or left position of a wheel of a vehicle Method and device for locating the right or left position of a wheel of a vehicle. The wheel has a magnetic measuring component including a core of ferromagnetic material on which are arranged, crosswise, two windings presenting maximum sensitivity axes extending in... | 07/06/2010 |
| 7733082 | Signal transmission device The invention provides a signal transmission device that transmits a signal applied to a pair of input terminals to a pair of output terminals insulated electrically from the pair of input terminals while reducing the influence of an external noise magnetic field. T... | 06/08/2010 |
| 7719262 | Inductive proximity sensor and related methods An inductive proximity sensor or switch and a method of using same. The sensor or switch includes an Application Specific Integrated Circuit (“ASIC”) and a plurality of external components. The ASIC is implemented in CMOS technology and has an oscillator. A swit... | 05/18/2010 |
| 7719263 | Inductive position measuring device or goniometer The invention relates to an inductive position measuring device or goniometer having two to no more than five digital oscillators, each of which contains measuring coils or reference coils. Particularly favorable for one application as a transmission sensor is a coi... | 05/18/2010 |
| 7598733 | Position detector A detector for detecting movements which, in its simplest form of embodiment, has one exciter magnet: (EM) and only one individual pulse wire (FE) with one induction coil (SP1) and with a sensor (SP2, HS) for determining polarity and position of the mo... | 10/06/2009 |
| 7535216 | Incremental displacement transducer and method for determining a displacement of a first object relative to a second object The invention relates to an incremental displacement transducer for determining a displacement of a first object relative to a second object with a scanning unit linked with the first object for scanning a division track linked with the second object having first ar... | 05/19/2009 |
| 7528597 | Induction sensor Position sensor circuits are disclosed for use with variable reluctance sensors. Variable reluctance sensors are described for linear, angular and rotary position measurement and for acceleration measurement. ... | 05/05/2009 |
| 7525306 | Magnetic encoder with separation of sensor from the environment A magnetic encoder for detecting for example movement of a continuous pipe, wire line, pipe joints, rod, etc. into a well includes a wheel in the contaminated environment of the well with a permanent magnet mounted on the wheel such that the magnet moves past a sens... | 04/28/2009 |
| 7511475 | Mobile member speed sensor A speed sensor for a moving member (8) comprises means (27; 34) for constituting a magnetic singularity on a portion of the moving member, and a sleeve slidably receiving said portion and including at least an annular coil (20, 21) and an annula... | 03/31/2009 |
| 7511476 | Electromagnetic sensor systems and methods of use thereof Sensor circuits including an oscillator circuit are disclosed. In one instance, the sensing element is a variable reactance element (a variable inductor or/and capacitor). ... | 03/31/2009 |
| 7498802 | Flexible inductive sensor An inductive sensor includes an inductor comprising conductive loops and at least one hinge mechanically coupling the loops. Operation of the hinge changes the position of the loops and causes a change in the inductance of the sensor. A sensor material may be orient... | 03/03/2009 |
| 7492148 | Circuit configuration for inductive displacement measurement A circuit configuration for inductive displacement measurement using a sensor whose inductance changes as a function of the displacement to be measured, and having an evaluation circuit to which the sensor is connected. The sensor is connected between a first operat... | 02/17/2009 |
| 7443159 | Sensor unit with staggered actuation faces An inductive sensor for detecting the position of a vehicle seat or for a gate shifting unit of an automatic transmission is described. The inductive sensor unit has a plurality of sensor coils that are disposed in planar fashion on a printed circuit board A conduct... | 10/28/2008 |
| 7429053 | Subframe structure and vibration damper for the same A subframe structure for an automotive vehicle wherein a subframe is attached through a rubber mount to a vehicle body, suspension components are assembled onto the subframe so that the suspension components are held connected to the vehicle body through the subfram... | 09/30/2008 |
| 7414533 | System for placing radio frequency identification (RFID) antennas, tags and interrogators A system and method for optimally placing radio frequency identification (RFID) antennas. The system varies the placement of RFID tag and interrogator antennas with respect to each other and a stationary object or objects. A signal generator sends a known reference ... | 08/19/2008 |
| 7414398 | Magnetic detection device having magnetic detection element in magnetic detection circuit and fabricating method thereof A magnetic detection device of which an output can be completely switched over with an external magnetic field is formed in a small size. A detection circuit is formed by forming circuit elements such as an active element layer and interconnection layers on a substr... | 08/19/2008 |
| 7411388 | Rotary position sensor and method for determining a position of a rotating body A variable reluctance position sensor and a method for determining a position of a rotating body are provided. The variable reluctance position sensor includes a rotatable member configured to be operably coupled to the rotating body. The rotatable member has a firs... | 08/12/2008 |
| 7411385 | Inductive presence, proximity or position sensor An inductive presence, proximity or position sensor comprising an inductive coil defining a working or active face of the sensor corresponding to the external face of a covering plate or a substantially plane part of the housing or casing containing said coil, the p... | 08/12/2008 |
| 7402996 | Instrument and method for measuring three-dimensional motion An instrument (10) for measuring three-dimensional motion in a living body comprises a plurality of magnetism generators (12i) fixed to one of at least two objects (44, 46) moving relatively in the living body, a plurality of magnetic... | 07/22/2008 |
| 7400136 | Multiscale localization procedure Position measurements are often performed using a localization system with a given fixed capture range and accuracy and resolution. Having a fixed capture range often comes at the cost of decreased accuracy and resolution. At the start, a large capture range is prov... | 07/15/2008 |
| 7394243 | Proximity sensor A proximity sensor 717 comprising a combination of an arbitrarily selected one of a plurality of types of detection end modules 707, a plurality of types of output circuit modules 709 and a plurality of types of outer shell cases 711. The... | 07/01/2008 |
| 7388367 | Method for determining the rotor position of a synchronous machine The invention relates to a method for determining the rotor position of a stationary or slowly rotating synchronous machine by evaluating electrical test pulses that are obtained by applying voltage pulses to the individual phase windings of the stator, wherein chan... | 06/17/2008 |
| 7365536 | Passively shielded inductive sensor system for personnel screening An inspection system includes an electromagnetic shield having electrically conductive sidewalls spaced from one another. The shield also includes a conductive third wall which spans the distance between the sidewalls, and is electrically coupled to the sidewalls. T... | 04/29/2008 |
| 7362225 | Flexible occupant sensor and method of use Flexible circuit material is used for positioning one or more antennas for occupant detection within a seat. The antenna and associated signal traces to an occupant detection circuit may be more easily manufactured using a flexible material while minimizing discomfo... | 04/22/2008 |
| 7356910 | Method of manufacturing a rotation angle detector A method for manufacturing a rotation angle detector is provided. An insulator is mounted on a sensor core. A plurality of winding slackening pins are disposed at predetermined positions between a plurality of teeth and a plurality of terminal pins so as to project ... | 04/15/2008 |
| 7355391 | Electromechanical conversion device An electromechanical conversion device includes an electromechanical conversion unit and a cable, which has a signal wire and a ground wire for grounding the electromechanical conversion unit. The electromechanical conversion unit performs a conversion between a rel... | 04/08/2008 |
| 7346837 | Relative position and/or posture measuring system for measuring relative positions and/or relative postures using a magnetic field generator and a magnetic field detector The present invention provides a relative position and/or posture measuring system for measuring relative positions and relative postures between a magnetic field generator and a magnetic field detector by detecting a change in a magnetic field, in which the magneti... | 03/18/2008 |
