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    • 1. 发明申请
    • GENERAL PURPOSE REMOVAL OF GEOMAGNETIC NOISE
    • 一般用途去除地磁噪声
    • WO2017007513A1
    • 2017-01-12
    • PCT/US2016/014297
    • 2016-01-21
    • LOCKHEED MARTIN CORPORATION
    • KRAUSE, James MichaelMANICKAM, Arul
    • G01V3/08
    • G01R33/0017G01R33/032
    • A magnetic sensor system, includes a plurality of magnetic field sensors and a controller. The plurality of magnetic field sensors are arranged in an array, each magnetic field sensor configured to measure a magnetic field at the magnetic field sensor. The controller is configured to receive magnetic field signals from each of the plurality of magnetic field sensors so as have an array of measured magnetic field values corresponding respectively to the magnetic field sensors. The controller is further configured to: transform each of the measured magnetic field values to a common coordinate system to provide an array of transformed magnetic field values; estimate a spatially correlated background noise based on the array of transformed magnetic field values; and subtract the spatially correlated background noise from the transformed magnetic field values to provide noise removed magnetic field values.
    • 磁传感器系统包括多个磁场传感器和控制器。 多个磁场传感器被布置成阵列,每个磁场传感器被配置为测量磁场传感器处的磁场。 控制器被配置为从多个磁场传感器中的每一个接收磁场信号,以便具有分别对应于磁场传感器的测量磁场值的阵列。 控制器还被配置为:将每个测量的磁场值转换为公共坐标系,以提供变换磁场值的阵列; 基于变换磁场值的阵列来估计空间相关的背景噪声; 并从变换的磁场值中减去与空间相关的背景噪声,以提供去除噪声的磁场值。
    • 3. 发明申请
    • LOW-NOISE FLUXGATE MAGNETOMETER WITH INCREASED OPERATING TEMPERATURE RANGE
    • 低噪声磁通量计具有增加的工作温度范围
    • WO2016022194A1
    • 2016-02-11
    • PCT/US2015/032403
    • 2015-05-26
    • HALLIBURTON ENERGY SERVICES, INC.
    • LI, WenquanBESTE, Randal ThomasROBERSON, Brian
    • E21B47/00G01V3/18G01V3/38
    • G01R33/0017G01R33/045G01V3/26
    • In some embodiments, an apparatus and a system, as well as a method and an article, may include synchronic symmetrical integrator circuitry and a magnetic field measurement device comprising an excitation circuit including an excitation coil, the excitation coil being wound around an amorphous soft magnetic core having a certain temperature coefficient such that inductance of the excitation circuit will change with temperature variations of the amorphous soft magnetic core; a detection circuit including a detection coil, the detection coil being wound around the same amorphous soft magnetic core, such that inductance variation of the detection circuit with temperature of the core can be detected from the excitation coil; and a resonation control circuit coupled to the excitation circuit and to the detection circuit to adjust a resonant frequency of the detection circuit responsive to temperature variations of the core. Additional apparatus, systems, and methods are disclosed.
    • 在一些实施例中,装置和系统以及方法和制品可以包括同步对称积分器电路和包括激励电路的磁场测量装置,所述激励电路包括激励线圈,所述激励线圈围绕无定形软磁体 磁芯具有一定的温度系数,使得激励电路的电感随着无定形软磁芯的温度变化而变化; 检测电路,其包括检测线圈,所述检测线圈缠绕在相同的非晶软磁芯上,使得可以从所述励磁线圈检测所述检测电路与所述芯的温度的电感变化; 以及耦合到激励电路和检测电路的谐振控制电路,以响应于芯的温度变化来调整检测电路的谐振频率。 公开了附加装置,系统和方法。
    • 6. 发明申请
    • CAPTEUR DE CHAMP MAGNETIQUE
    • 磁场传感器
    • WO2013104584A1
    • 2013-07-18
    • PCT/EP2013/050155
    • 2013-01-07
    • COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVESRENAULT S.A.S.
    • DELAET, BertrandBACQUET, Sylvain
    • G01R15/20G01R33/09G01R33/00
    • G01D5/16G01R15/205G01R33/0017G01R33/09
    • Ce capteur de champ magnétique comporte : - un générateur générant N champs magnétiques CM i à l'aide d'au moins un aimant permanent (ΑΡ i ), chaque champ CM i présentant une intensité I i dans la direction de mesure, chaque transducteur TM i placé à l'intérieur du champ CM i formant un bloc (B i ) de mesure pour lequel la plage où la résistance du transducteur TM i de ce bloc varie linéairement à ±x i % près est décalée de I i et devient [a i + I i ; b i + I i ], chaque intensité I i étant différente des autres, - un calculateur (22) apte : • à sélectionner le bloc approprié de mesure pour lequel l'intensité du champ magnétique à mesurer est comprise dans la plage [a i + l i ; b i + I i ] de ce bloc, et • à établir la mesure de l'intensité du champ magnétique à partir de la mesure du seul bloc de mesure sélectionné.
    • 该磁场传感器包括: - 通过至少一个永磁体(AlphaRhoi)产生N个磁场CMi的发生器,每个场CM i在测量方向上具有强度Ii,每个换能器TMi位于场CMi内部,形成 测量块(Bi),其中该块的换能器TMi的电阻在±xi%内线性变化的范围被Ii偏移并变为[ai + Ii; bi + Ii],每个强度Ii与其他强度不同, - 计算器(22)。 选择要测量的磁场强度的合适的测量块包括在[ai + li; bi + Ii]。 基于仅选择的测量块的测量来建立磁场强度的测量。
    • 8. 发明申请
    • APPARATUS AND METHOD FOR CLOSED LOOP PROCESSING FOR A MAGNETIC DETECTION SYSTEM
    • 用于磁检测系统的闭环处理的装置和方法
    • WO2017087013A1
    • 2017-05-26
    • PCT/US2016/014325
    • 2016-01-21
    • LOCKHEED MARTIN CORPORATION
    • STETSON, John B., Jr.CAMMERATA, Jeff D.
    • G01R33/02
    • G01R33/032G01R33/0017
    • A system for magnetic detection includes a nitrogen vacancy (NV) diamond material comprising a plurality of NV centers, a magnetic field generator that generates a magnetic field that is applied to the NV diamond material, a radio frequency (RF) excitation source that provides RF excitation to the NV diamond material, an optical excitation source that provides optical excitation to the NV diamond material, an optical detector that receives an optical signal emitted by the NV diamond material, and a controller. The controller is configured to compute a total incident magnetic field at the NV diamond material based on the optical signal emitted by the NV diamond material, and drive the magnetic field generator to generate a compensatory magnetic field, the generated compensatory magnetic field being set to offset a shift in the optical signal emitted by the NV diamond material caused by an external magnetic field.
    • 用于磁性检测的系统包括含有多个NV中心的氮空位(NV)金刚石材料,产生施加于NV金刚石材料的磁场的磁场发生器,射频 向所述NV金刚石材料提供RF激励的激励源(RF),向所述NV金刚石材料提供光激励的光激发源,接收由所述NV金刚石材料发射的光信号的光学检测器,以及控制器。 控制器被配置成基于由NV金刚石材料发射的光学信号计算NV金刚石材料处的总入射磁场,并且驱动磁场发生器以产生补偿磁场,所产生的补偿磁场被设置为偏移 由外部磁场引起的由NV金刚石材料发射的光信号的偏移。