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    • 3. 发明授权
    • Integrating fluxgate magnetometer
    • 集成磁通门磁强计
    • US06278272B1
    • 2001-08-21
    • US09517558
    • 2000-03-02
    • John F. ScarzelloJohn J. HolmesEdward C. O'Keefe
    • John F. ScarzelloJohn J. HolmesEdward C. O'Keefe
    • G01R3304
    • G01R33/045
    • A magnetic field sensor based on fluxgate magnetometric principles includes a magnetic core having an elongated oblong configuration and accordingly defining a closed magnetic flux path. The core includes a rigid bobbin which defines the core's shape, and about which amorphous magnetic material is wrapped. A drive winding is wound about each of the two parallel linear sections of the core. A sense winding is wound about another rigid bobbin which surrounds the drive winding-wound core. Typically, a feedback winding is wound about another rigid bobbin which surrounds the sense winding. When, for sensing purposes, the driven sensor is situated near and parallel to a ferromagnetic material surface, the sensor is capable of generating a detectable signal which is representative of the “integration” of magnetic field components over the length of the core. The invention's integrative function minimizes measurement skewing or distortion attributable to anomalous characteristics of the ferromagnetic material being sensed.
    • 基于磁通门磁力计原理的磁场传感器包括具有细长椭圆形构造并因此限定闭合磁通路径的磁芯。 芯包括限定芯的形状的刚性线轴,以及围绕其形成非晶磁性材料。 驱动绕组缠绕在芯的两个平行线段中的每一个上。 感测绕组缠绕在围绕驱动绕组磁芯的另一个刚性线轴上。 通常,反馈绕组缠绕在围绕感测绕组的另一个刚性线轴上。 为了感测目的,当驱动传感器位于铁磁材料表面附近并平行时,传感器能够产生可检测的信号,该信号代表磁芯长度上的磁场分量的“积分”。 本发明的综合功能最小化了由感测的铁磁材料的异常特性引起的测量偏移或失真。
    • 4. 发明授权
    • Spatially integrating fluxgate manetometer having a flexible magnetic core
    • 具有柔性磁芯的空间积分磁通门强度计
    • US06417665B1
    • 2002-07-09
    • US09517560
    • 2000-03-02
    • John F. ScarzelloJohn J. HolmesEdward C. O'Keefe
    • John F. ScarzelloJohn J. HolmesEdward C. O'Keefe
    • G01R3304
    • G01R33/045
    • A magnetic field sensor based on fluxgate magnetometric principles includes a magnetic core having a highly elongated oblong configuration and accordingly defining a closed magnetic flux path. The core includes flexible amorphous magnetic material. A drive winding is wound about each of two linear sections of the core. The two drive winding-wound linear core sections are closely coupled in parallel adjacent disposition. A sense winding is wound about the drive winding-wound core, thereby forming a narrow unitary strip-like sensor construction which, depending on the embodiment, can be practically any length. Typically, a very long sensor is situated huggingly or abuttingly with respect to a great expanse of a ferromagnetic material surface. The sensor is capable of generating a detectable signal which is representative of the “integration” of magnetic field components over the length of the core. The invention's integrative function minimizes measurement skewing or distortion attributable to anomalous characteristics of the ferromagnetic material being sensed. The invention's “integrative” sensor admits of systematic association with any number and diverse kinds of “point” sensors, in furtherance of more complete data acquisition.
    • 基于磁通门磁力计原理的磁场传感器包括具有高度细长椭圆形构造并因此限定闭合磁通路径的磁芯。 芯包括柔性非晶磁性材料。 驱动绕组围绕芯的两个线性部分中的每一个缠绕。 两个驱动绕组的线性芯部分相邻配置紧密耦合。 感应绕组缠绕在驱动绕线芯上,从而形成窄的单一条状传感器结构,根据实施例,传感器结构实际上可以是任何长度。 通常,非常长的传感器相对于铁磁材料表面的大片而拥挤地或邻接地位置。 该传感器能够产生可检测的信号,其表示在磁芯长度上的磁场分量的“积分”。 本发明的综合功能最小化了由感测的铁磁材料的异常特性引起的测量偏移或失真。 本发明的“综合”传感器承认与任何数量多样的“点”传感器的系统关联,以促进更完整的数据采集。
    • 5. 发明授权
    • Fluxgate magnetic field sensor incorporating ferromagnetic test material into its magnetic circuitry
    • 磁通门磁场传感器将铁磁测试材料结合到其磁路中
    • US06456069B1
    • 2002-09-24
    • US09517559
    • 2000-03-02
    • John F. ScarzelloJohn J. HolmesEdward C. O'Keefe
    • John F. ScarzelloJohn J. HolmesEdward C. O'Keefe
    • G01R3302
    • G01R33/045
    • A magnetic field sensor, for sensing the transverse component of the magnetic field intensity H, is based on fluxgate magnetometric principles and includes an “E”-shaped magnetic core. A drive winding is wound about the medial leg of the “E” shape. A sense winding is wound about the base of the “E” shape at the two locations between the medial leg and the extreme legs. A calibration winding is wound about each leg. Another magnetic field sensor, for sensing the normal component of the magnetic induction B, is also based on fluxgate magnetometric principles and includes a magnetic core having a sort of coaxial double cylindrical configuration wherein a basket-shaped cylinder encloses a smaller, solid cylinder. A drive winding, then a sense winding, then a calibration winding are wound over the solid cylinder. During operative placement of either inventive sensor in appropriate relation to a ferromagnetic surface, a closed magnetic flux path is manifested through the sensor and the ferromagnetic material; in effect, the ferromagnetic material is made a part of the sensor's transducer core.
    • 用于感测磁场强度H的横向分量的磁场传感器基于磁通门磁力计原理,并且包括“E”形磁芯。 驱动绕组缠绕在“E”形的内侧腿上。 在内侧腿和极腿之间的两个位置处,感觉绕组围绕“E”形的基部缠绕。 校正绕组缠绕在每条腿上。 用于感测磁感应B的正常分量的另一个磁场传感器也基于磁通门磁力计原理,并且包括具有一种同轴双圆柱形构造的磁芯,其中篮状气缸包围较小的实心气缸。 驱动绕组,然后是感应绕组,然后校准绕组缠绕在实心圆柱体上。 在将本发明的传感器与铁磁表面适当关系的操作性放置期间,通过传感器和铁磁材料表现出闭合磁通路径; 实际上,铁磁材料被制成传感器的换能器芯的一部分。