Class / Patent application number | Description | Number of patent applications / Date published |
324204000 | Fluid material examination | 38 |
20080218157 | Magnetic particle flow detector - A ferromagnetic thin-film based magnetic field detection system having a substrate supporting a magnetic field sensor in a channel with a first electrical conductor supported on the substrate positioned at least in part along the channel gap and in direct contact with at least some surface of the magnetic field sensor and a second electrical conductor supported on the substrate positioned at least in part along the channel gap in a region thereof adjacent to, but separated from, the magnetic field sensor. | 09-11-2008 |
20080238411 | Magneto-Resistive Nano-Particle Sensor - A magnetic sensor device is suggested. The magnetic sensor device comprises at least one magnetic field generator, a magnetic sensor element ( | 10-02-2008 |
20080265875 | Fluid production computation apparatus using electromagnetic induction theory and fluid producing apparatus capable of computing fluid production - A fluid production computation apparatus using the electromagnetic induction theory is disclosed. In accordance with an embodiment of the present invention, the fluid production computation apparatus includes a line through which a current flows according to fluid production; a magnetic sensor, measuring magnetism induced by the current; and a fluid production computation unit, computing the fluid production through magnetism measured by the magnetic sensor. The conventional flow measurement apparatus measures the flow by measuring a current or a voltage induced by magnetism formed by a fluid or by using a fluid measurement sensor. However, with the present invention, an apparatus can be miniaturized and the measurement can be precisely performed by measuring a magnetic field induced by a current flowing according to fluid production. | 10-30-2008 |
20080284413 | Method and system for detection of biomaterials using magnetic marker - Accurate measurement cannot be performed due to magnetic signals from magnetic impurities included in a specimen container. By finding a difference between two measurement signals obtained by applying an external magnetic field for orientation to respective normal and reverse directions, the magnetic signals from the magnetic impurities included in the specimen container which are not dependent on the external magnetic field for orientation can be cancelled. The influence of the magnetic impurities included in the specimen container is reduced, and the signal of the intended bound magnetic marker can be measured with high sensitivity. | 11-20-2008 |
20080309323 | METHOD FOR BIOCHEMICAL ANALYSIS - It is intended to provide a supersensitive, quick and accurate method for biochemical analysis. The method includes: adding magnetic fine particles into a solution containing a target substance, whereby a first substance for detection immobilized on the magnetic fine particle is bound to the target substance, while aggregating the magnetic fine particles so as to form an aggregate in the solution; next binding the target substance bound with the magnetic fine particle constituting the aggregate to a second substance for detection on a magnetic sensor layer so as to immobilize the aggregate onto the surface of the magnetic sensor layer; and measuring a magnetic stray field of this aggregate using a magnetic sensor. | 12-18-2008 |
20090051350 | DEVICE AND PROCESS FOR DETECTING PARTICLES IN A FLOWING LIQUID - A process and device for detecting electrically conductive particles in a liquid flowing in a pipe section, the liquid being exposed to periodic alternating electromagnetic fields by a transmitter coil which induces eddy currents in the particles, a probe made as a coil arrangement and which has an effective width producing a periodic electrical signal based on the eddy currents. The signal ha a carrier oscillation with an amplitude and/or phase which is modulated by particles passing across the effective width of the coil arrangement, the probe signal being filtered by a frequency-selective first filter unit, the filtered signal being sampled by a triggerable A/D converter stage to obtain a demodulated digital measurement signal, the digital measurement signal being filtered by a digital, frequency-selective adjustable second filter unit to obtain a useful signal, and the useful signal being evaluated to detect passage of electrically conductive particles in the pipe section. | 02-26-2009 |
20090066318 | SENSOR DEVICE WITH ALTERNATING EXCITATION FIELDS - The invention relates to a magnetic sensor device comprising excitation wires ( | 03-12-2009 |
20090189599 | DEVICE AND METHOD FOR MEASURING CONCENTRATION OF MAGNETIC MATERIAL - A device for measuring a concentration of magnetic material has exciting coils | 07-30-2009 |
20090206825 | EXCITATION AND MEASUREMENT METHOD FOR A MAGNETIC BIOSENSOR - The present invention relates to an excitation and measurement method for a magnetic biosensor. Using at least a digital magnetic sensor element ( | 08-20-2009 |
20090219012 | MICROELECTRONIC SENSOR DEVICE FOR CONCENTRATION MEASUREMENTS - The invention relates to a method and a magnetic sensor device for the determination of the concentration of target particles ( | 09-03-2009 |
20090278528 | SENSOR FOR DETERMINING THE ELECTRICAL CONDUCTIVITY OF LIQUID MEDIA, AND METHOD FOR THE PRODUCTION THEREOF - Sensor for determining the electrical conductivity of liquid media comprising a multilayer layered structure ( | 11-12-2009 |
20100045267 | MAGNETIC AND/OR ELECTRIC LABEL ASSISTED DETECTION SYSTEM AND METHOD - A detection system ( | 02-25-2010 |
20100060265 | SENSOR DEVICE WITH MAGNETIC WASHING MEANS - The invention relates to a sensor device, particularly a magnetic sensor device ( | 03-11-2010 |
20100072984 | INFLUENCING AND/OR DETECTING MAGNETIC PARTICLES IN A REGION OF ACTION OF AN EXAMINATION OBJECT - A method and an arrangement for influencing and/or detecting magnetic particles in a region of action of an examination object is disclosed, which method comprises the steps of: generating a magnetic selection field by means of selection means, the magnetic selection field having a pattern in space of its magnetic field strength such that a first sub-zone having a low magnetic field strength and a second sub-zone having a higher magnetic field strength are formed in the region of action, changing the position in space of the two sub-zones in the region of action by means of a magnetic drive field generated by drive means so that the magnetization of the magnetic particles change locally, acquiring signals by means of receiving means, which signals depend on the magnetization in the region of action, which magnetization is influenced by the change in the position in space of the first and second sub-zone, wherein the selection means and/or the drive means and/or the receiving means are provided at least partly movable relative to the examination object during the acquisition and/or the change in the position in space of the two sub-zones in the region of action. | 03-25-2010 |
20100109653 | SENSOR DEVICE FOR AND A METHOD OF SENSING PARTICLES - A sensor device ( | 05-06-2010 |
20100176798 | MAGNET SYSTEM FOR BIOSENSORS - The invention relates to a magnet system for biosensors. To achieve a magnetic system, which can switch between attraction force and repulsion force, near the sensor surface, the magnetic system has at least one coil ( | 07-15-2010 |
20100207606 | Method of Quantifying an Analyte in a Liquid Medium - Method of quantifying an analyte in a liquid medium by means of magnetic particles functionalized by specific ligands of the analyte being quantified, consisting in applying a magnetic field to a liquid medium for a time period several times shorter than that of the reaction between the analyte being quantified and the ligands of the magnetic particles, in measuring the optical density of the liquid medium after applying the magnetic field, in repeating this cycle of applying the magnetic field and of measuring the optical density several times over the duration of the reaction between the analyte and the ligands, in calculating, by extrapolation, a limiting value for the optical density for an infinite magnetic field application time and in deducing therefrom the concentration of the analyte in the liquid medium. | 08-19-2010 |
20100253323 | MAGNETIC WASHING FOR BIOSENSOR - Detecting magnetized or magnetizable target components in a fluid containing the magnetized or magnetizable target components amongst other magnetized or magnetizable components, uses a magnetic field generator (M | 10-07-2010 |
20100277160 | MAGNETIC SENSOR DEVICE - A magnetic sensor device ( | 11-04-2010 |
20100289483 | SENSOR CARTRIDGE - The present invention provides a sensor cartridge ( | 11-18-2010 |
20110025306 | Method and Apparatus for the Purification and Analytical Evaluation of Highly Purified Liquids - A method and apparatus for removing soluble and insoluble contaminants from highly purified and ultra-pure liquids having a bulk resistivity in excess of one megohm-centimeter by establishing laminar flow of the liquid in a cylindrical chamber through an electromagnetic field transverse to the direction of flow, to induce mobility of the constituents. The wall of the chamber forms a cathode and a central rod forms an anode in the chamber. The mobilized constituents are transported either to the anode or the cathode, where the material will adhere and agglomerate with other constituents. Systems are provided utilizing the method and apparatus for purifying and analytically evaluating highly purified and ultra-pure water. | 02-03-2011 |
20120001619 | HARD PARTICLE CONCENTRATION DETECTING METHOD, PARTICLE CONCENTRATION DETECTING METHOD, AND DEVICE THEREFOR - Magnetic and counterpart members | 01-05-2012 |
20120086439 | GRAPHITE-BASED SENSOR - A graphite-based sensor includes an undoped graphite structure that adsorbs foreign atoms and molecules. A magnetization detection device includes a substrate on which the graphite structure is adhered, a current source by which a current is applied to the substrate and the graphite structure, and a voltage measuring device coupled to the substrate. When the graphite structure adsorbs the gas molecules, the graphite structure exhibits a ferromagnetic-type behavior, and a corresponding voltage generated in the magnetic detection device changes. | 04-12-2012 |
20120098526 | METHOD FOR IDENTIFYING CAPSULES IN A BEVERAGE PRODUCING DEVICE WITH MAGNETICALLY-RESPONSIVE IDENTIFIER - A method for identifying capsules in a beverage producing device by providing a capsule comprising at least one identifier attached thereto or embedded therein; the identifier comprising a magnetically-responsive material, providing detecting means in the beverage producing device to detect the identifier including at least one emitting coil and at least one receiving coil, positioning the identifier in the magnetic field thereby altering the magnetic signal resulting therefrom, emitting a magnetic signal from the at least one emitting coil, detecting an altered signal by the receiving coil and identifying the capsule according to the alteration provided to the magnetic signal. | 04-26-2012 |
20120119727 | SENSOR WITH HIGH FREQUENCY AC MAGNETIC FIELD - A sensor device for detecting one or more magnetic particles ( | 05-17-2012 |
20120161754 | APPARATUS FOR THE ENRICHMENT OF MAGNETIC PARTICLES - The invention relates to a method and an apparatus ( | 06-28-2012 |
20120182007 | FLOW CHAMBER HAVING A GMR SENSOR AND A CELL GUIDING DEVICE - Magnetically labeled cells in a flow chamber cytometer are detected by a GMR sensor. The flow chamber includes a cell guiding device having at least one first and one second magnetic or magnetizable flow strip. The flow strips, which serve to guide the flowing cells across the sensor in a target-oriented manner, are mounted at a distance from each other such that a magnetic field B | 07-19-2012 |
20120187938 | FLOW CHAMBER HAVING A CELL-GUIDING DEVICE - A flow cytometer has a flow chamber in which labeled cells are highly likely to be detected by a corresponding sensor as a medium carrying the magnetically labeled cells flows through the flow chamber. The flow chamber has at least one sensor positioned on an inner surface thereof to detect the cells. The flow chamber also has a magnetic or magnetizable cell guiding device which can be positioned upstream of the sensor in the direction of flow to guide the flowing, magnetically labeled cells directly across the sensor, so that only a small percentage of labeled cells pass outside of the reach of the sensor. | 07-26-2012 |
20120299584 | Measurement System of Ferromagnetic Particles - A system by which the proportion of ferromagnetic particles in a dielectric medium is measured. A magnetic field is generated by two signals in the medium: a low frequency feed and a relatively high frequency excitation. The feed magnetizes the ferromagnetic particles in the medium to the nonlinear range of the magnetization curve. The excitation is generated so that its spectrum is relatively wide and it is dense with frequency components. The level of the excitation is so high that the magnetic flux density in the medium corresponding to the excitation fluctuates nonlinearly, when the feed is at its peak value or near this. The magnetic field of the medium is measured by a secondary winding, and from the response signal produced by the sensor is detected the part resulting from the magnetic non-linearity, which part is the output signal. In the detection the response is multiplied by the signal, which arises magnetic field and includes the same random fluctuation as the response. The higher the proportion of the ferromagnetic particles in the medium is, the higher the level of the output signal. The secondary winding comprises several portions so that the parasitic voltages caused by the stray capacitances compensate each other. The measurement is real-time and accuracy, because the excitation is a random signal by nature, in which case its spectrum includes, instead of one frequency component, densely frequency components in a certain band. The result is a 20-30 dB higher signal-to-noise ratio in the response and output signal compared with the known technique. A device according to the method is suitable for use in an industrial plant and moving vehicles, in which there are interfering fields and the temperature can be high. | 11-29-2012 |
20130033255 | Gas Magnetometer - Measurement of a precessional rate of a gas, such as an alkali gas, in a magnetic field is made by promoting a non-uniform precession of the gas in which substantially no net magnetic field affects the gas during a majority of the precession cycle. This allows sensitive gases that would be subject to spin-exchange collision de-phasing to be effectively used for extremely sensitive measurements in the presence of an environmental magnetic field such as the Earth's magnetic field. | 02-07-2013 |
20130147465 | DEVICE TO DETECT THE LEVEL OF LIQUID METAL IN A CASTING APPARATUS AND RELATIVE METHOD - A device to detect the level of liquid metal (M) in a casting apparatus includes a box-like structure associated in correspondence with an upper end of a crystallizer. The box-like structure has a peripheral cavity inside in which a device for the generation and detection of a variable magnetic field is disposed. The device for the generation and detection extends for a segment beyond an inner corner of the crystallizer so as to face directly into the open top of the crystallizer. | 06-13-2013 |
20140062461 | LIQUID LEVEL DETECTORS - Liquid level detectors are described. An example liquid level detector includes a housing and an arm extending through the housing. A lever assembly is coupled to the arm and the housing, and movement of the arm causes the lever assembly to open or close a switch via a magnetic field when a liquid reaches a predetermined level. | 03-06-2014 |
20140097829 | SEARCH COIL - A device includes an excitation coil, a detector coil, and a processing circuit. The excitation coil is aligned about a volume. The excitation coil is configured to carry a first and second biasing current and generate a magnetic field in the volume. The detector coil is configured to generate an electrical signal based on a detected field within the volume. The detected field is based on the magnetic field. The processing circuit is configured to generate data based on the electrical signal. | 04-10-2014 |
20140103910 | DIFFERENTIAL TRANSFORMER TYPE MAGNETIC SENSOR AND IMAGE FORMING APPARATUS - A differential transformer type magnetic sensor includes a board, a drive coil, a first differential coil, and a second differential coil. The drive coil includes a planar coil in which a dimension of a first direction which is one of longitudinal and transverse dimensions is smaller than that of a second direction which is the other of the longitudinal and transverse dimensions, and is disposed on the board. The first differential coil includes a planar coil having the same shape as the drive coil, and is disposed on the board. The second differential coil includes a planar coil having the same shape as the drive coil, and is disposed on the board. The first differential coil and the second differential coil are electrically connected so that a direction of induced current flowing along the first differential coil and a direction of induced current flowing along the second differential coil are opposite to each other. The differential transformer type magnetic sensor is disposed on a development part with the first direction set to be vertical and with the second direction set to be horizontal. | 04-17-2014 |
20150070000 | SINGLE MAGNET FLUID DENSITOMETER - An instrument for determining fluid properties is provided. The instrument ( | 03-12-2015 |
20150097553 | DEVICE AND METHOD FOR MEASURING VERY LOW FREQUENCY ELECTROMAGNETIC FIELDS - A measuring device for measuring one or more electromagnetic fields is provided. The measuring device includes a measuring sensor arrangement which is operable to detect the one or more electromagnetic fields and to generate one or more corresponding measurement signals; moreover, the measuring device further includes a data processing arrangement which is operable to process the one or more corresponding signals to generate an analysis of the one or more electromagnetic fields. Furthermore, the measuring device includes a liquid for at least partially influencing at least a part of the measuring sensor arrangement for simulating one or more physiological effects of the one or more electromagnetic fields. | 04-09-2015 |
20160202169 | METHOD OF OPERATING A PARTICLE SENSOR AND EVALUATION OF THE RESULTS THEREOF | 07-14-2016 |
20220137001 | MAGNETIC MATERIAL CONCENTRATION MEASURING DEVICE - Provided is a magnetic material concentration measuring device including: a bobbin having an outer circumference around which an exciting coil, an output coil, and a further exciting coil are wound; an eccentric hole formed in the bobbin; a rotor that is rotatably fitted in the eccentric hole about an eccentric axis line; a first cutout part that forms a first flow passage on one end side in an eccentric axis line direction of the rotor; a second cutout part that forms a second flow passage whose angle is shifted in a rotor rotation direction with respect to the first cutout part, on another end side in the eccentric axis line direction of the rotor; and a communication passage that connects the first flow passage and the second flow passage. | 05-05-2022 |