Magnetic field sensor for medical devices

A magnetic field sensor for a medical device, the magnetic sensor assembly comprising a substrate having a plurality of planar segments, where adjacent planar segments are joined by transition segments, and where the planar segments are arranged in a substantially C-shaped arrangement such that an i...

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Bibliographische Detailangaben
Hauptverfasser: FOSTER DANIEL J, TRUE, KYLE, P, CHIZEK DAVID A
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:A magnetic field sensor for a medical device, the magnetic sensor assembly comprising a substrate having a plurality of planar segments, where adjacent planar segments are joined by transition segments, and where the planar segments are arranged in a substantially C-shaped arrangement such that an inner surface of the magnetic field sensor is concave, and wherein the plurality of planar segments includes a first planar segment oriented in a first plane and a second planar segment oriented in a second plane orthogonal to the first plane. A first magnetoresistive (MR) sensor is mounted to the first planar segment and defines a first sensitivity axis, and a second MR sensor is mounted to the second planar segment and defines a second sensitivity axis orthogonal to the first sensitivity axis. 一种用于医疗设备的磁场传感器,磁传感器组件包括具有多个平面段的衬底,其中相邻的平面段通过过渡段接合,并且其中平面段以大致C形布置排列,使得磁场传感器的内表面是凹的,并且其中多个平面段包括定向在第一平面中的第一平面段和定向在与第一平面正交的第二平面中的第二平面段。第一磁阻(MR)传感器被安装到第一平面段并限定第一灵敏度轴,并且第二MR传感器被安装到第二平面段并限定与第一灵敏度轴正交的第二灵敏度轴。