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    • 3. 发明申请
    • MAGNETIC SENSOR DEVICE
    • 磁传感器装置
    • WO2008107847A1
    • 2008-09-12
    • PCT/IB2008/050794
    • 2008-03-05
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.DE THEIJE, Femke, K.IMMINK, Albert, H., J.PELSSERS, Eduard, G., M.
    • DE THEIJE, Femke, K.IMMINK, Albert, H., J.PELSSERS, Eduard, G., M.
    • G01N33/543
    • G01N33/54333B82Y25/00G01N27/745G01R33/093G01R33/1269
    • The present invention provides a magnetic sensor device (20) for determining the presence and/or amount of target moieties (32) in a sample fluid, the target moieties being labeled with magnetic or magnetizable objects (33). The magnetic sensor device (20) comprises a sensor surface (23) lying in a plane, at least one magnetic element (21) for providing a sensor signal and at least one structure (24) extending from the sensor surface (23) in a direction substantially perpendicular to the plane of the sensor surface (23), the at least one structure (24) having a height (h) and a binding surface (25) for binding the labeled target moieties (32). The height (h) of the at least one structure (24) is higher than zero and lower or equal to a distance (z) of the labeled target moieties (32) from the sensor surface (23) corresponding to a signal cross-over point (27) from positive to negative signal contribution of the labeled target moieties (32) to the sensor signal, the signal cross-over point (27) being the distance at which a homogeneous distribution of magnetic or magnetizable objects (33) between the sensor surface (23) and that distance has a signal contribution to the sensor signal equal to zero.
    • 本发明提供了一种用于确定样品流体中靶部分(32)的存在和/或量的磁传感器装置(20),目标部分用磁性或可磁化物体(33)标记。 磁传感器装置(20)包括位于平面中的传感器表面(23),用于提供传感器信号的至少一个磁性元件(21)和至少一个从传感器表面(23)延伸的结构(24) 基本上垂直于传感器表面(23)的平面的方向,所述至少一个结构(24)具有用于结合标记的目标部分(32)的高度(h)和结合表面(25)。 所述至少一个结构(24)的高度(h)高于对应于信号交叉的传感器表面(23)的标记目标部分(32)的零度并且低于或等于距离(z) 点(27)从标记的目标部分(32)的正信号到负信号贡献到传感器信号,信号交叉点(27)是磁性或可磁化物体(33)之间的均匀分布的距离 传感器表面(23),并且该距离对传感器信号具有等于零的信号贡献。