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8994371 Phase detection in an atomic sensing system  
One embodiment of the invention includes an atomic sensing system. The system includes an atomic sensing device configured to generate an output signal along an output axis in response to a...
8947089 Magnetic field shimming adjustment: reducing magnetic distribution errors by obtaining current potential distributions of MRI apparatus  
A measured error magnetic field distribution is divided into eigen-mode components obtained by a singular decomposition and iron piece arrangements corresponding to respective modes are combined...
8886282 System and method for measuring magnetocardiogram of small animal  
A system and method for measuring a magnetocardiogram (MCG) in order to measure a weak magnetic field generated from the heart of a small animal such as a laboratory rat are provided. The system...
8884617 Magnetic particle imaging devices and methods  
A magnetic particle imaging device is provided. The device includes a magnetic field source configured to produce a magnetic field having a non-saturating magnetic field region, an excitation...
8847592 Techniques for magnetic particle imaging  
A magnetic particle imaging apparatus includes magnets [106,107] that produce a gradient magnetic field having a field free region (FFR), excitation field electromagnets [102,114] that produce a...
8786277 Environmental noise reduction for magnetometry  
A magnetic signal noise reduction and detection system has inputs configured to receive data from a first total field scalar magnetometer, data from a vector magnetometer, and data from a...
8698503 Geomagnetic application device  
A geomagnetic application device including a triaxial magnetic sensor, a measurement point acquiring mechanism, a calibration mechanism calibrating offset of the magnetic sensor, and an azimuth...
8547092 Proton precession magnetometer sensor measurable in all direction  
A “proton precession magnetometer sensor capable of all-direction measurement” according to the present invention, in which frequency of current induced in a coil by flowing and then breaking...
8525516 Apparatus with ambient magnetic field correction  
This atomic clock comprises means for applying two mutually perpendicular oscillating magnetic fields (9, 10), governed by a control device (5) that makes them apply a static or nearly static...
8519705 Method of performing MRI with an atomic magnetometer  
A method and apparatus are provided for performing an in-situ magnetic resonance imaging of an object. The method includes the steps of providing an atomic magnetometer, coupling a magnetic field...
8494610 Analysis of marketing and entertainment effectiveness using magnetoencephalography  
Central nervous system, autonomic nervous system, and effector data is measured and analyzed to determine the effectiveness of marketing and entertainment stimuli. A data collection mechanism...
8473211 Methods of correcting accelerometer and magnetometer measurements  
A method of correcting accelerometer and magnetometer measurements made in a well is provided. The method includes making a series of triaxial measurements with magnetometers and accelerometers in...
8421455 Pulsed free induction decay nonlinear magneto-optical rotation apparatus  
A magnetometer and concomitant magnetometry method comprising emitting light from a light source, via a pulse generator pulsing light from the light source, directing the pulsed light to an atomic...
8334690 Atomic magnetometer and method of sensing magnetic fields  
A magnetometer and method of use is presently disclosed. The magnetometer has at least one sensor void of extraneous metallic components, electrical contacts and electrically conducting pathways....
8289018 Gradient magnetometer atom interferometer  
Measuring a magnetic gradient according to the present invention includes generating a beam of like atoms with magnetic sublevels, applying a first pulse of electro-magnetic radiation to the beam...
8290572 Method and system for navigating a catheter probe in the presence of field-influencing objects  
A system for and method of determining and compensating for the effect of a field influencing object on a field sensor, preferably a coil, that is within a navigational domain. The navigational...
8264222 Tomographic magnetic particle imaging (MPI) method and associated arrangement  
According to at least one embodiment of the invention, at least two excitation fields with frequencies capable of being differently prescribed act on the object in the examination space, with the...
8229540 Method for separating multichannel signals produced by AC and DC sources from one another  
The present invention relates to a novel manner of measuring DC fields using a multi-channel MEG or MKG measuring instrument; and on the other hand, to a manner of eliminating from the measurement...
8217657 Diplex filter and method to filter signals  
A diplex filter is formed by two impedance-transforming filters with separate transmission frequency ranges and with separate cut-off frequency ranges and a connection node at which two series...
8212556 Atomic magnetometer  
An atomic magnetometer is disclosed which uses a pump light beam at a D1 or D2 transition of an alkali metal vapor to magnetically polarize the vapor in a heated cell, and a probe light beam at a...
8154349 Atomic clock regulated by a static field and two oscillating fields  
An atomic clock including a mechanism applying both a static magnetic field and two oscillating magnetic fields, all mutually perpendicular, in a magnetic shield. The amplitudes and frequencies of...
8082127 Method for determining the spatial distribution of magnetic resonance signals through multi-dimensional RF excitation pulses  
A method for determining the spatial distribution of magnetic resonance signals from an imaging area, wherein nuclear spins are excited in a spatially encoded fashion through multi-dimensional RF...
8054073 Method and apparatus for implementing EIT magnetometry  
A magnetometer is provided comprising an atomic vapor in an enclosure, a source of light for preparing the vapor into a state exhibiting electromagnetically induced transparency, a first laser...
8054074 Atomic magnetometer and magnetic force measuring method  
An atomic magnetometer includes a cell containing an atomic group, a pump light source, a probe light source, a mirror, and a detector. The cell is disposed between the pump light source and the...
8032335 Evaluating magnetic resonance spectra  
Provided are methods, systems and computer program products evaluating magnetic resonance (MR) signals from a sample. The methods and systems can be used to evaluate MR signals from various...
8009520 Method and system for operating an atomic clock using a self-modulated laser with electrical modulation  
A polarization gain medium such as an emitting laser diode provides the optical pumping. An atomic vapor cell is positioned in the laser cavity providing spontaneous push-pull optical pumping...
7936169 Polarization analyzer orientation with nuclear magnetic resonance gyroscope  
An apparatus in one example comprises a polarization filter and a polarization analyzer. The polarization filter comprises a first polarization axis. The polarization analyzer comprises a second...
7898251 Method and system for the individualized characterization of magnetic elements based on ferromagnetic resonance  
A method and system for the characterization of a magnetic element based on ferromagnetic resonance, the magnetic element presents ferromagnetic resonance and its own characteristic resonance...
7872473 Compact atomic magnetometer and gyroscope based on a diverging laser beam  
An atomic magnetometer that simultaneously achieves high sensitivity, simple fabrication and small size. This design is based on a diverging (or converging) beam of light that passes through an...
7863988 Microwave signal generator  
A microwave signal generator includes a magnetron to generate a microwave signal, a coupler to receive the microwave signal generated by the magnetron and to send the microwave signal to a load;...
7797032 Method and system for navigating a catheter probe in the presence of field-influencing objects  
A system for and method of determining and compensating for the effect of a field influencing object on a field sensor, preferably a coil, that is within a navigational domain. The system includes...
7756564 Apparatus for measuring the neuro-magnetic field from a human brain and method for operating the same  
The present invention provides a low-noise MEG apparatus of high sensitivity. A MEG apparatus using a magnetic shield of high critical temperature superconductor is set on the floor of a building...
7728587 Self-calibrating nuclear magnetic resonance gyro  
The method and apparatus in one embodiment may have: a gyro housing containing a bias field; a bias field that generates a stable axial magnetic field; Xenon or other gas contained within at least...
7723985 Altered sweep bell-bloom magnetometer  
A magnetometer is constructed wherein the sweeping is performed at one half the Larmor frequency and has as its center the absorption line. This allows the emitter to tune onto the absorption line...
7705592 Two dimensional T1/T2APP-T2APP processing of multi-gradient NMR data  
A method for estimating a property of a material, the method including: acquiring data using nuclear magnetic resonance (NMR) measurements, the measurements performed by varying at least one of a...
7696751 Method and apparatus for ferrous object and/or magnetic field detection for MRI safety  
A method and apparatus for ferrous object and/or magnetic field detection are provided. Embodiments can improve magnetic resonance imaging (MRI) safety and increase the safety of MRI facilities....
7652473 Magnetic field measuring optically pumped magnetometer apparatus  
Providing: quickly brining a vapor cell 119 to a desired temperature when retaining the heat of the vapor cell 119 to enhance the magnetic field detection performance of an optically pumped...
7613570 Method and apparatus for deriving a calibration filter for electromagnetic data  
A method of deriving a calibration filter for electromagnetic data is provided. The method comprises providing a source (21, 22) of electromagnetic radiation and subsequently measuring components...
7573264 Atomic magnetic gradiometer for room temperature high sensitivity magnetic field detection  
A laser-based atomic magnetometer (LBAM) apparatus measures magnetic fields, comprising: a plurality of polarization detector cells to detect magnetic fields; a laser source optically coupled to...
7534208 Device for the measurement of glucose concentrations  
The device of the present invention comprises a ring (1) of a ferrite material and two coils (4, 5) wound around it. A alternating current is fed to one of the coils (4). This current gives rise...
7521928 Subfemtotesla radio-frequency atomic magnetometer for nuclear quadrupole resonance detection  
A radio-frequency tunable atomic magnetometer for detection of nuclear quadrupole resonance (NQR) from room temperature solids, including detection of nitrogen-containing explosives placed...
7474233 Parking control device  
A vehicle detection device with a parking gate and a parking stand includes a geomagnetic field sensor in the parking stand for detecting a vehicle at the parking stand and/or a geomagnetic field...
7457653 Method of solving magnetoencephalographic and electroencephalographic inverse problems  
A method of solving magnetoencephalographic and electroencephalographic inverse problems provides better grouping of moments of equivalent current dipoles than conventional methods. Locations of...
7449883 Method and apparatus for measuring change in magnetic induction of a magnetic material with respect to temperature  
In order to measure the temperature parameters of magnetic materials, in a process and an apparatus for measuring the characteristics of variation of magnetic induction of magnetic material with...
7385395 Apparatus for preparing a solution of a hyperpolarized noble gas for NMR and MRI analysis  
The present invention relates generally to nuclear magnetic resonance (NMR) techniques for both spectroscopy and imaging. More particularly, the present invention relates to methods in which...
7295107 Ferromagnetic detection pillar  
A ferromagnetic detection pillar having one or more applied magnetic field sources and one or more magnetic field sensors, with the magnets and sensors arranged and adapted to detect a...
7202751 Optically pumped frequency standard with reduces AC stark shift  
An apparatus for generating a stabilized frequency signal is disclosed. The apparatus includes a quantum absorber having first, second, and third energy states. The quantum absorber is irradiated...
7202667 Anisotropic nanoparticle amplification of magnetic resonance signals  
The reversible transverse susceptibility of magnetic nanoparticles is used to achieve magnetic flux amplification in magnetic resonance settings. Nanoparticles having substantially uniaxial or...
7176681 Inspection of composite components using magnetic resonance imaging  
Embodiments of the invention relate to a system and method for non-destructively inspecting a component that is at least partially made of a composite material. In one embodiment, the composite...
7145333 High sensitivity atomic magnetometer and methods for using same  
The present invention provides a high sensitivity atomic magnetometer and methods of measuring low intensity magnetic fields that relate to the use of an alkali metal vapor and a buffer gas;...

Matches 1 - 50 out of 230 1 2 3 4 5 >