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"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 8129989 | Electromagnetic field measuring apparatus and method therefor A plate conductor and at least three columnar conductors erected on the plate conductor are provided. At the same time when an electric field is measured by the plate conductor, two components of a magnetic field at the same measurement points as those at which the ... | 03/06/2012 |
| 8058871 | MTJ based magnetic field sensor with ESD shunt trace Presented herein is a shunted MTJ sensor formed of a plurality of electrically connected MTJ cells for measuring magnetic fields and currents and its method of fabrication. To provide stable single domain magnetic moments of the MTJ cells and to ensure that the magn... | 11/15/2011 |
| 8026719 | Magneto-resistance based topography sensing A topography sensor and method include a probe configured to traverse a surface to determine a topography. A stray magnetic field is disposed in proximity to the probe. A magneto-resistive sensor is configured so that the stray magnetic field passing through it chan... | 09/27/2011 |
| 8022697 | System for measuring an electromagnetic field, a control system using the measuring system, and an electronic circuit designed for the measuring system This system for measuring an electromagnetic field radiated by an electrical component of an electronic circuit, the electrical component being fixed to a dielectric substrate of the electronic circuit, is wherein a transducer (90 to 95) is etched on t... | 09/20/2011 |
| 7923999 | MEMS device with supplemental flux concentrator A microelectromechanical modulating magnetic device comprising: a base; a magnetic transducer that provides an output in response to a magnetic field associated with the base; at least one movable flux concentrator positioned to move relative to the magnetic transdu... | 04/12/2011 |
| 7800365 | Magnetic detection device and electrical product An integrated circuit is provided with two output terminals and a mode switch circuit which includes a pair of switch terminals. The mode switch circuit is allowed to switch the output mode between the 1-output mode for outputting the (+) magnetic field detection si... | 09/21/2010 |
| 7737688 | Magnetic field detecting apparatus The magnetic field detecting apparatus is provided with: a magnetic field detecting unit for outputting one of two signals having different potential levels from each other in response to a perpheral magnetic field; an energizing control unit for producing a periodi... | 06/15/2010 |
| 7639006 | Detector for magnetic hazards to implanted medical device A handheld detector gives a warning when a magnetic field exceeds the safety level for a particular medical implant that is magnetically activated. A front surface of the device corresponds approximately to a surface region of a patient's body in a vicinity of an im... | 12/29/2009 |
| 7595637 | Apparatus for digital measurement of quick break voltage and magnetic pulse duration A Apparatus for Digital measurement of Quick break voltage and Magnetic pulse duration with microcontroller performs detection and measurement of both shot time (pulse duration) and quick break voltage, absolute value circuit makes detection polarity insensitive, al... | 09/29/2009 |
| 7573263 | Device for punctual measurement of a radiofrequency magnetic field with constant amplitude and frequency The invention concerns a device for measuring a radiofrequency magnetic field, characterised in that it comprises on a common support: a coil forming a primary reception antenna; a voltage-controlled oscillator, monitored so that its output frequency depends on the ... | 08/11/2009 |
| 7564239 | Magnetic field detector and a current monitoring device including such a detector A magnetic field detector is provided that makes use of Magneto-Impedance in order to switch an oscillator between operating states as a function of magnetic field strengths. ... | 07/21/2009 |
| 7511486 | Non-contact magnetic sensor system A non-contact sensor system according to one embodiment comprises a substrate having at least one sensor element, the at least one sensor element being directed towards at least one data track on a medium positioned opposite the at least one sensor element, wherein ... | 03/31/2009 |
| 7511485 | Magnetic field measurement method and system To measure a magnetic field strength at each scan spacing s which is smaller than a loop size by scanning a magnetic field sensor (loop antenna) of the loop size. A magnetic field strength distribution is determined with spatial resolution of the spacing s along a s... | 03/31/2009 |
| 7443158 | Sensor, and method for measuring physical quantity by use of the sensor A sensor includes a first X-axis GMR element to a fourth X-axis GMR element fixed on a substrate, and a movable coil movably supported on the substrate. When electric current flows through the movable coil, a magnetic field is generated around the movable coil. The ... | 10/28/2008 |
| 7429859 | Device for punctual measurement of a radiofrequency magnetic field with constant amplitude and frequency The invention concerns a device for measuring a radiofrequency magnetic field, characterised in that it comprises on a common support (10): a coil forming a primary reception antenna; a voltage-controlled oscillator, monitored so that its output frequency dep... | 09/30/2008 |
| 7420364 | Small-sized attitude detection sensor and portable telephone using the small-sized attitude detection sensor An attitude detection sensor includes three magnetic sensing parts that detect magnetic field strength in respective directions along three axes perpendicular to each other, and two tilt sensing parts that detect tilt angles around two axes perpendicular to each oth... | 09/02/2008 |
| 7414400 | Detection of ferromagnetic objects approaching a magnet An apparatus for detecting a potentially dangerous ferromagnetic object carried inadvertently by a person approaching the magnet of a magnetic resonance imaging system (14) uses the fringe field (16) of the magnet and provides guide members (11)... | 08/19/2008 |
| 7412359 | Mutual immittance calculation program, mutual immittance calculation apparatus and method, and electromagnetic-field strength calculation program In a mutual immittance calculation apparatus, an input section inputs data of a model of an electric circuit apparatus, being a target for analysis of the electromagnetic-field strength and being divided into a plurality of patches. A mutual immittance calculation s... | 08/12/2008 |
| 7411391 | Magnetic-field-measuring probe A magnetic-field-measuring probe includes at least one magnetoresistive or magnetoinductive sensor which is sensitive to the magnetic field along a privileged measurement axis. The probe includes: at least two magnetoresistive or magnetoinductive sensors (14, 16 | 08/12/2008 |
| 7405559 | Low-power giant magneto-impedance magnetic detector that utilizes a crystal controlled oscillator The present invention is an electrical circuit for a sensor designed to detect external magnetic fields. The circuit is composed of a stable voltage reference source, connected to a low frequency amplifier where the operating point of the amplifier depends on the vo... | 07/29/2008 |
| 7398168 | Method and system for monitoring power flow through an electric power transmission line A conductor configuration and a power flow of an electric power transmission line set is determined at a location along the line set, and positions in a substantially planar area that is transverse to the line set are determined where a predetermined change in the p... | 07/08/2008 |
| 7385392 | Eddy current sensing arrays and system An apparatus that measures electrical impedance. The apparatus includes a signal generator controlled by a master microcontroller, a plurality of data acquisition channels, each channel containing a microcontroller, a host computer that processes and stores measured... | 06/10/2008 |
| 7385390 | Device for establishing a cutting point from a blind side of a structure A blind spot targeting system for establishing a cutting point includes a locator with a housing having an indicator and a signal-sensing device. The housing has a hole therethrough, and the indicator is in electronic communication with the signal-sensing device for... | 06/10/2008 |
| 7382119 | Blind spot targeting system A blind spot targeting system for establishing a cutting point includes a locator with a housing having an indicator and a signal-sensing device. The housing has a hole therethrough, and the indicator is in electronic communication with the signal-sensing device for... | 06/03/2008 |
| 7379523 | Electromagnetic counter with built-in illumination means An electromagnetic counter includes an electromagnetic counting mechanism in a frame, a plurality of number wheels at least one of which is configured to rotate through a predetermined angle in response to rotation of an electromagnetically motivated anchor, wherein... | 05/27/2008 |
| 7375516 | Magnetic field detector, current detector, position detector and rotation detector employing it A magnetic field detector having a reference magnetoresistive element and a magnetic field detecting magnetoresistive element. The reference magnetoresistive element and the magnetic field detecting magnetoresistive element each has a stack structure including an an... | 05/20/2008 |
| 7375515 | Magnetic sensor circuit and semiconductor device capable of temperature compensation A magnetic sensor circuit supplying an excitation current to an MI device, and having a detection signal supplied thereto corresponding to a magnetic field intensity from the MI device based on the excitation current. The magnetic sensor circuit includes a pulse cur... | 05/20/2008 |
| 7372260 | Magnetic sensor, and method of compensating temperature-dependent characteristic of magnetic sensor A magnetic sensor 10 includes GMR elements 11-18, and heating coils 21-24 serving as heat generating elements. The elements 11-14 and 15-18 are bridge-interconnected to constitute X-axis and Y-axis senso... | 05/13/2008 |
| 7369898 | System and method for responding to pulsed gradient magnetic fields using an implantable medical device Implantable medical devices, such as pacemakers or implantable cardioverter defibrillators (ICDs), are vulnerable to the powerful magnetic fields associated with magnetic resonance imaging (MRI). In particular, pulsed gradient components, if strong enough, can induc... | 05/06/2008 |
| 7362098 | Magnetic field sensor Two coil forming elements (12, 14) formed of conductor layers and a contact means (19), which is formed in an interlayer dielectric film (13) interposed between the conductor layers and brings the upper and lower coil forming elements into conta... | 04/22/2008 |
| 7358724 | Integrated magnetic flux concentrator A method and apparatus provide a substrate having a depression into which a magnetic material is disposed, forming a magnetic flux concentrator and/or a permanent magnet. A magnetic field sensing element can be disposed proximate to the depression. ... | 04/15/2008 |
| 7358749 | Method, apparatus, and program for measuring an electromagnetic field and medium storing the program Provided is a method, apparatus and program for calculating an electric-field vector that allows for grasping the intensity, direction and phase of electric field on a scanning plane for an appliance, and a medium storing the program. An electric-field vector at an ... | 04/15/2008 |
| 7355392 | Printed circuit card-based proximity sensor and associated method of detecting a proximity of an object A proximity sensor assembly includes a multilayer printed wiring board proximity sensor, the proximity sensor being operable as either a variable-reluctance sensor or an eddy current loss sensor. The proximity sensor includes a plurality of layers configured to form... | 04/08/2008 |
| 7355399 | Non-contact sensor system A non-contact sensor system according to one embodiment includes a substrate having a substantially planar surface with at least one sensor element mounted to the substrate, the at least one sensor element being directed by a guiding element towards at least one dat... | 04/08/2008 |
| 7348772 | Printed circuit board having weak magnetic field sensor and method of manufacturing the same A Printed Circuit Board (PCB) having a weak magnetic field sensor of the present invention includes a base plate on which a first excitation circuit and a first detection circuit are formed on each of the sides thereof, soft magnetic core bodies laminated on the top... | 03/25/2008 |
| 7346466 | Geomagnetic sensor and geomagnetic sensor correction method, temperature sensor and temperature sensor correction method, geomagnetism detection device A magnetism detection device includes a geomagnetism detection element for detecting geomagnetism of each transverse axial component and a nonvolatile memory element of a thermal metamorphic type for storing one piece or a plurality of pieces of correction data for ... | 03/18/2008 |
| 7342537 | Method of and apparatus for detecting a current carrying conductor A detector 1 for detecting a current carrying conductor determines the presence of a current carrying conductor one or more of passive or active modes. In the passive modes, the detector 1 detects either very low frequency radio signals re-radiated fro... | 03/11/2008 |
| 7332901 | Locator with apparent depth indication A human-portable utility locator system for locating and tracing a buried utility line characterized by an electromagnetic field emission. The locator may include a horizontal spaced sensor pair for detecting the horizontal field asymmetry of the emitted field in on... | 02/19/2008 |
| 7319319 | Sensing apparatus and method There is described a sensor comprising an excitation winding, a signal generator operable to generate an excitation signal and arranged to apply the generated excitation signal to the excitation winding, a sensor winding electromagnetically coupled to the excitation... | 01/15/2008 |
| 7319322 | Deformation sensor and method for detecting a deformation A sensor has a substrate having a mechanically deformable region, a magnetostrictive spin-valve sensor element being arranged to detect a mechanical deformation of the mechanically deformable region. On the substrate, there is a device for generating a controllable ... | 01/15/2008 |
