| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 324248000 | Superconductive magnetometers | 13 |
| 20090322324 | GEOMETRIES FOR SUPERCONDUCTING SENSING COILS FOR SQUID-BASED SYSTEMS - Geometries for superconducting sensing coils for SQUID-based systems are described, such as a superconducting sensing coil with a flat washer shape the inner diameter of which has an extension which is a small fraction of the extension of the outer diameter. Also described are a second-order gradiometer comprising such coils and a superconducting sensing coil structure comprising an external low-melting point metallic loop encapsulating one or more superconductive coil loops, together with a heterogeneous superconductive sensing wire for gradiometers, consisting of an internal copper skeleton surrounded by an external lead-tin alloy. | 12-31-2009 |
| 20100164490 | DEVICE BASED ON A MAGNETO-RESISTIVE MIXED SENSOR WITHOUT LOW FREQUENCY NOISE AND ASSOCIATED METHOD - A device comprises a mixed sensor design with at least one superconducting loop ( | 07-01-2010 |
| 20100207622 | MAGNETIC FIELD SENSOR DEVICE FOR DIRECT MAGNETIC FIELD IMAGING AND METHOD OF FABRICATION THEREOF - The present invention discloses a novel magnetic sensor device performing direct magnetic field imaging, comprising a probe having a conical tip portion which is configured as a sensor having two superconductors separated by a thin non-superconducting layer (such as a Josephson junction based sensor), where the non-superconducting layer is located at the apex portion of said conical tip, thereby defining electron tunneling region(s) at said apex portion. The technique of the present invention enables the sensor device to be very small and to be brought very close to the sample surface. | 08-19-2010 |
| 20110031967 | NONDESTRUCTIVE INSPECTION APPARATUS USING SQUID MAGNETIC SENSOR - There is provided a nondestructive inspection apparatus using a SQUID magnetic sensor which allows nondestructive and accurate detection of magnetic particles in an insulator such as an electronic device or in a magnetizable member. | 02-10-2011 |
| 20110074403 | HIGH-SENSITIVITY, IN-VIVO, AND DYNAMIC DETECTION OF MAGNETIC PARTICLES WITHIN LIVING ORGANISM USING A PROBE-TYPE SQUID SYSTEM - The present invention provides a probe-type SQUID system to detect magnetic particles stored in the living organisms or magnetic-labeling indicators for immunoassays and tumor or other applications. The probe-type SQUID system comprises a probe union, a SQUID union and a connecting electrically conducting wires such as copper wires, wherein the probe union is coupled with a cooling module such as TE cooler module to avoid power heating so that the probe can approach to the living organism to detect magnetic particles with high-sensitivity. | 03-31-2011 |
| 20110285392 | METHOD AND APPARATUS FOR OPERATING GRADIOMETERS IN MULTIPLE MODES - A magnetic screening system uses directional gradiometers with high resolution and accuracy to measure magnetic field signatures of target objects (e.g., gun, knife, cell phone, keys) in a volume of interest. The measured signatures can be compared to signatures of known objects stored in a local database. Various mathematical processes may be used to identify or classify target object signatures. In a network of magnetic screening systems, the magnetic screening systems can transmit signatures to a central signature database, and a management computer can share the central signature database with all of the magnetic screening systems on the network. The magnetic screening system can operate in multiple modes, such as a tracking mode, measurement mode, and self-test mode. Through use of unique processes and designs, the magnetic screening system can achieve a high rate of processing persons for target objects. | 11-24-2011 |
| 20110285393 | SQUID-SYSTEM HAVING INCREASED FLUX VOLTAGE TRANSFER FUNCTION - The invention relates to a SQUID system having an increased flux voltage transfer function. The object of disclosing a circuit configuration providing an increased flux voltage transfer function of a SQUID, wherein the measurement sensitivity of the system is noticeably increased and the required readout electronics are simplified, is achieved in that at least one SQIF is provided as an amplifier circuit and is connected downstream of the first SQUID, wherein a coupling coil electrically connected to the first SQUID is directly associated with all loops of the SQIF. | 11-24-2011 |
| 20120206136 | FLUX-LOCKED LOOP CIRCUIT, FLUX-LOCKED LOOP METHOD, AND SQUID MEASURING APPARATUS - Provided are a flux-locked loop circuit, a flux-locked loop method and a superconducting quantum interference device (SQUID) measuring apparatus. The flux-locked loop circuit includes a pre-amplifier configured to amplify a signal output of a SQUID, an integrator configured to integrate a signal output from the pre-amplifier and output the integrated signal, an operating range expanding unit configured to initialize the integrator by comparing an output signal of the integrator with a positive or negative reference reset voltage corresponding to an external flux of a predetermined integral multiple of flux quantum, and a feedback circuit configured to supply current to eliminate a difference between the external flux applied to the SQUID and a magnetic flux corresponding to an integral multiple of the reference reset voltage according to the output signal of the integrator. | 08-16-2012 |
| 20120229130 | Apparatus and Method for Determining Magnetic Properties of Materials - Apparatus for determining magnetic properties of materials comprises a portable probe, an equipment trolley holding cryogenics and electronics and connecting cables. The probe comprises a drive coil and a correction coil, the drive coil being disposed symmetrically with respect to an inner second-order gradiometer sensor coil. Electrical connectors in the form of 2-metre long Belden (1192A) microphone cables are used to connect the apparatus on the equipment trolley to the drive coil, the correction coil and the sensor coil. The drive coil is driven so as to generate a sinusoidally varying magnetic field. The electronics comprise a flux-locked loop, a SQUID controller, a data acquisition module, which captures and processes the signals and computer. A liquid-nitrogen dewar is supported on the equipment trolley and houses a sensitive SQUID detector and a transfer coil made from copper. Possible applications of the apparatus include an intra-operative tool for sentinel lymph node detection in the treatment of breast cancer, and a non-destructive evaluation tool for detecting voids and defects in aluminum and applications in the aeronautics industry. | 09-13-2012 |
| 20130038325 | MODULAR ARRAYS OF PRIMARY SOURCE MIRRORS FOR BIOMAGNETOMETRY - Apparatus and methods enabling the improved noninvasive measurement of electric currents flowing in the body of a human being or animal or in a biological sample by means of a modular array of primary source mirrors and a magnetometer. | 02-14-2013 |
| 20130093420 | HIGH-RESOLUTION SCANNING PRISM MAGNETOMETRY - Apparatus and methods which employ a primary source mirror to scan a conductive sample containing an electric current to determine the distribution of currents in the sample, providing location, total magnitude, and direction in three dimensions of each component of the electric current distribution, by means of measuring the magnetic field external to the sample. | 04-18-2013 |
| 20160103192 | SENSOR DEVICE FOR DIRECT MAGNETIC FIELD IMAGING - The present invention discloses a sensor device comprising a probe carrying a three-dimensional magnetic field sensor. The probe has a conical tip portion with an edge being configured as the three-dimensional magnetic field sensor. The sensor at the edge of the tip comprises at least three Josephson junctions, each junction being formed of a superconducting layer interrupted by a barrier. The barrier comprises a non-superconducting layer or a geometrical constriction. The conical tip portion of the probe forms a tapered three-dimensional structure having at least one arc-like part crossing the opening of the tip portion such that the apex has a closed-loop basis and a plurality of complimentary spaced-apart facets defined by the at least one arc, thereby enabling measurement of both in-plane and out-of-plane magnetic fields separately. | 04-14-2016 |
| 20160154068 | DUAL SQUID MEASUREMENT DEVICE | 06-02-2016 |
