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公开(公告)号：US12123926B2
公开(公告)日：2024-10-22
申请号：US17814883
申请日：2022-07-26
发明人： Sebastian Maerz
CPC分类号： G01R33/093 , G01R33/0005 , G01R33/0094 , G01R33/098
摘要： The present disclosure relates to a redundant current sensor (100), comprising, in a common chip package (20), a first integrated magnetoresistive sensor circuit (110A) and a second integrated magnetoresistive sensor circuit (110B).
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公开(公告)号：US12117509B2
公开(公告)日：2024-10-15
申请号：US17601468
申请日：2020-04-02
发明人： Niklas Wehkamp , Maxim Zaitsev , Philipp Rovedo
CPC分类号： G01R33/24 , G01R33/0047
摘要： A magnetic field probe (1) having a capsule (3), in which an MR-active substance (5) is encapsulated. Two coils (7, 9) are preferably arranged in the capsule (3). Advantageous production methods for magnetic field probes (1) are also described, as well as advantageous uses of the magnetic field probe (1) and methods in which magnetic field probes (1) of this kind and arrangements of magnetic field probes (1) are used.
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公开(公告)号：US12105159B2
公开(公告)日：2024-10-01
申请号：US17776121
申请日：2020-11-27
发明人： Kenjiro Kimura , Yuki Mima , Shogo Suzuki , Noriaki Kimura
CPC分类号： G01R33/0023 , G01R33/10
摘要： An external field response distribution visualization device includes: an induction circuit that induces a first field component from each of induction positions; a sensor that senses a field strength at sensing positions for each of the induction positions; and an information processing circuit that generates an image showing an external field response distribution. The information processing circuit: calculates, using the sensing result as a boundary condition, an induction position dependent field function that takes an induction and sensing positions as inputs and outputs the field strength; calculates an imaging function that takes an imaging target position as an input and outputs an image intensity, and is defined based on the strength output from the induction position dependent field function in response to inputting the imaging target position; and generates the image based on the imaging function.
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公开(公告)号：US12099100B1
公开(公告)日：2024-09-24
申请号：US18124145
申请日：2023-03-21
发明人： Anthony Opperman , Edward J. Rapp
CPC分类号： G01R33/0035 , G01R33/04
摘要： The present invention relates to a sensor suite comprising at least one sensor. More particularly, the present invention relates to a sensor suite for measuring absolute and/or relative position, location and orientation of an object on or in which the sensor suite is employed. The present invention further relates to improved, novel sensor types for use in the sensor suite. More particularly, the present invention relates to an improved, novel magnetometer that is self-calibrating and scalable. Still more particularly, the present invention relates to such a magnetometer that is miniaturized. Further embodiments of the present invention relate to systems and methods for providing location and guidance, and more particularly for providing location and guidance in environments where global position systems (GPS) are unavailable or unreliable (GPS denied and/or degraded environments).
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5.发明公开公开(公告)号：US20240310459A1
公开(公告)日：2024-09-19
申请号：US18350584
申请日：2023-07-11
发明人： Quang LE , Xiaoyong LIU , Brian R. YORK , Cherngye HWANG , Rohan Babu NAGABHIRAVA , Kuok San HO , Hisashi TAKANO , Son T. LE , Nam Hai PHAM , Huy H. HO
CPC分类号： G01R33/075 , G01R33/0052 , G01R33/093
摘要： The present disclosure generally relates to temperature detection devices including a ferromagnetic (FM) material disposed at a media facing surface (MFS). The FM material is configured to produce a first electric voltage signal in response to a temperature gradient due to an anomalous Nernst effect. The temperature detection device may also include a spin-orbit torque (SOT) material abutting the FM material. The SOT material includes at least one of BiSb, a topological insulator, a topological half-Heusler alloy, or a weakly oxidized heavy metal. The SOT material is recessed from the MFS, wherein the SOT material is configured to receive a spin current parallel to the temperature gradient generated by a spin Seebeck effect in the FM material. The spin current is detectable as a second electric voltage signal via an inverse spin Hall effect. The first electric voltage signal is added to the second electric voltage signal.
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公开(公告)号：US20240310457A1
公开(公告)日：2024-09-19
申请号：US18540666
申请日：2023-12-14
发明人： James F. Dempsey
IPC分类号： G01R33/00 , A61B5/055 , A61N5/10 , G01R33/28 , G01R33/38 , G01R33/381 , G01R33/3815 , G01R33/385 , G01R33/48 , G01R33/483 , G01R33/563 , G01R33/565
CPC分类号： G01R33/0023 , A61B5/055 , A61N5/1049 , G01R33/0017 , G01R33/287 , G01R33/3815 , G01R33/385 , G01R33/48 , A61N2005/1055 , G01R33/3806 , G01R33/381 , G01R33/4808 , G01R33/4835 , G01R33/56325 , G01R33/56527 , G01R33/56536
摘要： Improved magnetic resonance imaging systems, methods and software are described including a low field strength main magnet, a gradient coil assembly, an RF coil system, and a control system configured for the acquisition and processing of magnetic resonance imaging data from a patient while utilizing a sparse sampling imaging technique.
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公开(公告)号：US12092709B2
公开(公告)日：2024-09-17
申请号：US17794955
申请日：2021-01-25
发明人： Bernd Burchard , Jan Meijer , Arthur Rönisch , Robert Staacke
CPC分类号： G01R33/26 , G01R33/0052 , G01R33/323 , G01R33/3621 , G06N10/40 , G01V3/30
摘要： A scalar magnetometer includes a sensor element, a circuit carrier, a pump radiation source, a radiation receiver and evaluation means. The pump radiation source emits pump radiation. The sensor element preferably includes one or more NV centers in diamond as paramagnetic centers. This paramagnetic center emits fluorescence radiation when irradiated with pump radiation. The radiation receiver converts a intensity signal of the fluorescence radiation into a receiver output signal. The evaluation means detects and/or stores and/or transmits the value of the receiver output signal. The material of the circuit carrier is preferably transparent for the pump radiation in the radiation path between pump radiation source and sensor element and transparent for the fluorescence radiation in the radiation path between sensor element and radiation receiver. The components sensor element, pump radiation source, radiation receiver and evaluation means are preferably mechanically attached to the circuit carrier.
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公开(公告)号：US12081176B2
公开(公告)日：2024-09-03
申请号：US17904515
申请日：2021-02-09
发明人： Zhimin Zhou , James Geza Deak
CPC分类号： H03F1/34 , G01R33/0094 , G01R33/091
摘要： A gain-controllable magnetoresistive analog amplifier includes a substrate in an X-Y plane, an output signal magnetoresistive sensor on the substrate, and an input signal coil and a gain adjustment coil. The input signal coil and the gain adjustment coil are respectively on two side surfaces of the sensor. The gain adjustment coil is used to input a gain signal by the generation of a gain magnetic field, in order to set the gain the magnetic field is applied along a magnetization direction of a free layer of the output signal magnetoresistive sensor. The input signal coil is used for inputting a current signal to generate an input magnetic field, in order to apply the input magnetic field to a magnetization direction of a pinned layer of the output signal magnetoresistive sensor. This amplifier provides isolation between input signals, output signals, and controllable gain signals.
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公开(公告)号：US12078691B2
公开(公告)日：2024-09-03
申请号：US17903395
申请日：2022-09-06
CPC分类号： G01R33/0047 , H05K5/0213 , H05K5/03
摘要： The present disclosure relates to a housing assembly for accommodating printed circuit boards (PCBs). The housing assembly comprises a first housing portion configured to accommodate a first PCB, a second housing portion configured to accommodate a second PCB, and a separating portion for separating the first housing portion from the second housing portion. The separating portion comprises a first separating region in which the first housing portion and the second housing portion overlap and a second separating region that extends beyond the second housing portion and covers the first housing portion. The second separating region comprises one or more convection openings.
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公开(公告)号：US12078690B2
公开(公告)日：2024-09-03
申请号：US17760211
申请日：2021-02-03
CPC分类号： G01R33/0035 , A61B5/242 , G01R33/0094 , A61B2560/0223
摘要： A method is provided for determining a coupling between magnetometers of an array of N magnetometers, for example with optical pumping, where each magnetometer includes a field cancellation system capable of being activated to operate the magnetometer in zero field. This method includes a first phase during which one of the N magnetometers is a measuring magnetometer whose field cancellation system is activated and the other N-1 magnetometers have their field cancellation system deactivated. This first phase includes generation by the magnetometers, of a plurality of reference magnetic fields of known amplitudes and distinct directions, the measurement, by the measuring magnetometer, of the ambient magnetic field on a plurality of measurement axes, and determination of coupling coefficients between the measuring magnetometer and each of the N magnetometers from said measurement and said known amplitudes.
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