Non-linear magnetic field sensors and current sensors
    1.
    发明授权
    Non-linear magnetic field sensors and current sensors 有权
    非线性磁场传感器和电流传感器

    公开(公告)号:US08395382B2

    公开(公告)日:2013-03-12

    申请号:US11577090

    申请日:2005-10-10

    IPC分类号: G01R33/02 G01R33/00

    摘要: The invention provides a magnetic field sensor or current sensor which can exhibit a substantially linear relationship between the sensor signal and the logarithm of the magnetic field or current. The sensor may be used as a wide dynamic range sensor which can offer a constant relative sensitivity and a uniform SNR over several decades. The design of the sensor device may be implemented in discrete magnetic field sensors or current sensors as well as in integrated current sensors in ICs comprising MRAM modules.

    摘要翻译: 本发明提供一种磁场传感器或电流传感器,其可以在传感器信号和磁场或电流的对数之间呈现基本上线性的关系。 该传感器可用作宽动态范围传感器,可在几十年内提供恒定的相对灵敏度和均匀的SNR。 传感器设备的设计可以在离散磁场传感器或电流传感器以及集成电流传感器中实现,其中包括MRAM模块。

    MAGNETORESISTIVE SENSOR
    2.
    发明申请
    MAGNETORESISTIVE SENSOR 有权
    磁传感器

    公开(公告)号:US20120025819A1

    公开(公告)日:2012-02-02

    申请号:US13191730

    申请日:2011-07-27

    IPC分类号: G01R33/02

    CPC分类号: G01R33/09 G01R33/096

    摘要: A magnetoresistive sensor comprising first and second magnetoresistive elements is disclosed. Each magnetoresistive element is coupled at a respective first end to a common ground terminal and comprises one or more magnetoresistive segments, each overlying a corresponding segment of an excitation coil. The resistance of the magnetoresistive segments in each of the first and second magnetoresistive elements is the same and the resistance of the segments of the excitation coil corresponding to the first magnetoresistive element is the same as the resistance of the segments of the excitation coil corresponding to the second magnetoresistive element.

    摘要翻译: 公开了包括第一和第二磁阻元件的磁阻传感器。 每个磁阻元件在相应的第一端处耦合到公共接地端子,并且包括一个或多个磁阻片段,每个磁阻片段覆盖激励线圈的相应片段。 第一和第二磁阻元件中的每一个中的磁阻部分的电阻相同,并且与第一磁阻元件相对应的激励线圈的段的电阻与对应于第一磁阻元件的激励线圈的段的电阻相同 第二磁阻元件。

    NON-LINEAR MAGNETIC FIELD SENSORS AND CURRENT SENSORS
    3.
    发明申请
    NON-LINEAR MAGNETIC FIELD SENSORS AND CURRENT SENSORS 有权
    非线性磁场传感器和电流传感器

    公开(公告)号:US20090302837A1

    公开(公告)日:2009-12-10

    申请号:US11577090

    申请日:2005-10-10

    IPC分类号: G01R33/02

    摘要: The invention provides a magnetic field sensor or current sensor which can exhibit a substantially linear relationship between the sensor signal and the logarithm of the magnetic field or current. The sensor may be used as a wide dynamic range sensor which can offer a constant relative sensitivity and a uniform SNR over several decades. The design of the sensor device may be implemented in discrete magnetic field sensors or current sensors as well as in integrated current sensors in ICs comprising MRAM modules.

    摘要翻译: 本发明提供一种磁场传感器或电流传感器,其可以在传感器信号和磁场或电流的对数之间呈现基本上线性的关系。 该传感器可用作宽动态范围传感器,可在几十年内提供恒定的相对灵敏度和均匀的SNR。 传感器设备的设计可以在离散磁场传感器或电流传感器以及集成电流传感器中实现,其中包括MRAM模块。

    Magnetoresistive sensor
    4.
    发明授权
    Magnetoresistive sensor 有权
    磁阻传感器

    公开(公告)号:US08680857B2

    公开(公告)日:2014-03-25

    申请号:US13191730

    申请日:2011-07-27

    IPC分类号: G01R33/02

    CPC分类号: G01R33/09 G01R33/096

    摘要: A magnetoresistive sensor comprising first and second magnetoresistive elements is disclosed. Each magnetoresistive element is coupled at a respective first end to a common ground terminal and comprises one or more magnetoresistive segments, each overlying a corresponding segment of an excitation coil. The resistance of the magnetoresistive segments in each of the first and second magnetoresistive elements is the same and the resistance of the segments of the excitation coil corresponding to the first magnetoresistive element is the same as the resistance of the segments of the excitation coil corresponding to the second magnetoresistive element.

    摘要翻译: 公开了包括第一和第二磁阻元件的磁阻传感器。 每个磁阻元件在相应的第一端处耦合到公共接地端子,并且包括一个或多个磁阻片段,每个磁阻片段覆盖激励线圈的相应片段。 第一和第二磁阻元件中的每一个中的磁阻部分的电阻相同,并且与第一磁阻元件相对应的激励线圈的段的电阻与对应于第一磁阻元件的激励线圈的段的电阻相同 第二磁阻元件。

    Sensor Arrangement
    5.
    发明申请
    Sensor Arrangement 审中-公开
    传感器布置

    公开(公告)号:US20080258722A1

    公开(公告)日:2008-10-23

    申请号:US11576141

    申请日:2005-09-21

    IPC分类号: G01R33/025

    摘要: Consistent with an example embodiment, devices comprise sensor arrangements with field detectors for detecting components of magnetic fields in planes of the field detectors. The sensor arrangements further include movable objects for, in response to tilting movements, changing at least parts of the components of the magnetic fields in the planes of the field detectors so that the sensor arrangements are made less sensitive to in-plane stray fields by providing the field detectors with saturated field-dependent elements. The movable object may comprise a movable field generator for generating the magnetic field, or the movable object and the field generator may be different objects. The magnetic field is such that the field-dependent element is saturated. The field generator is smaller than the field detector, and the movable object is larger than the field detector, to reduce alignment problems. The movable object has a pivoting point close to the field detector.

    摘要翻译: 与示例性实施例一致,设备包括具有用于检测场检测器的平面中的磁场分量的场检测器的传感器装置。 传感器装置还包括可移动物体,用于响应于倾斜运动,改变场检测器的平面中的磁场的分量的至少一部分,使得传感器装置对平面内杂散场的敏感度较低,提供 具有饱和场相关元件的场检测器。 可移动物体可以包括用于产生磁场的可移动场发生器,或者可移动物体和场发生器可以是不同的物体。 磁场使得场依赖元件饱和。 场发生器小于场检测器,可移动物体大于场检测器,以减少对准问题。 可移动物体具有靠近场检测器的枢转点。

    MEMS oscillator
    6.
    发明授权
    MEMS oscillator 有权
    MEMS振荡器

    公开(公告)号:US08461936B2

    公开(公告)日:2013-06-11

    申请号:US13198067

    申请日:2011-08-04

    IPC分类号: H03B5/30 G04C3/06

    CPC分类号: H03H9/02259

    摘要: A piezoresistive MEMS oscillator comprises a resonator body, first and second drive electrodes located adjacent the resonator body for providing an actuation signal; and at least a first sense electrode connected to a respective anchor point. The voltages at the electrodes are controlled and/or processed such that the feedthrough AC current from one drive electrode to the sense electrode is at least partially offset by the feedthrough AC current from the other drive electrode to the sense electrode.

    摘要翻译: 压电MEMS振荡器包括谐振器体,位于谐振器本体附近的第一和第二驱动电极,用于提供致动信号; 以及至少连接到相应锚点的第一感测电极。 电极处的电压被控制和/或处理,使得从一个驱动电极到感测电极的馈通AC电流至少部分地被从另一驱动电极到感测电极的馈通AC电流偏移。

    Resonator having a sideways oscillation compressing one connector while extending another
    7.
    发明授权
    Resonator having a sideways oscillation compressing one connector while extending another 有权
    具有侧向振荡的谐振器压缩一个连接器同时延伸另一个连接器

    公开(公告)号:US08269578B2

    公开(公告)日:2012-09-18

    申请号:US12743355

    申请日:2008-11-12

    摘要: A resonator comprises a resonator mass (34), a first connector (30) on a first side of the mass connected between the resonator mass and a first fixed mounting and a second connector (32) on a second, opposite, side of the mass connected between the resonator mass and a second fixed mounting. Drive means drives the mass (34) into a resonant mode in which it oscillates in a sideways direction, thereby compressing one of the first and second connectors while extending the other of the first and second connectors.

    摘要翻译: 谐振器包括谐振器块(34),连接在谐振器块与第一固定安装件之间的质量第一侧的第一连接器(30)和质量的第二相对侧上的第二连接器(32) 连接在谐振器质量块和第二固定安装件之间。 驱动装置驱动质量块(34)进入谐振模式,其中它在侧向振荡,从而压缩第一和第二连接器中的一个,同时延伸第一和第二连接器中的另一个。

    Device with a magnetic sensor arrangement for detecting acceleration
    8.
    发明授权
    Device with a magnetic sensor arrangement for detecting acceleration 有权
    具有用于检测加速度的磁传感器装置的装置

    公开(公告)号:US07958782B2

    公开(公告)日:2011-06-14

    申请号:US11910972

    申请日:2006-04-06

    申请人: Kim Phan Le

    发明人: Kim Phan Le

    IPC分类号: G01P15/08

    摘要: Devices (1) are provided with sensor arrangements (2) comprising field generators (10) for generating magnetic fields and first/second/third elements (R1-R4, S1-S4, T1-T4) for detecting first/second/third components of the magnetic fields in a plane and movable objects (14) for, in response to changing the first/second/third accelerations of the moveable objects (14) in first/second/third directions, changing the first/second/third components of the magnetic fields in the plane. The first (second, third) field detector (11, 12, 13) is more sensitive to the first (second, third) acceleration than to the other accelerations. Such devices (1) have a good sensitivity and a good linearity. The elements (R1-R4, S1-S4, T1-T4) form part of bridges. The first elements (R1-R4) may be in round or rectangular form and the second and third elements (S1-S4, T1-T4) may be in the form of sun beams leaving a sun.

    摘要翻译: 设备(1)设置有包括用于产生磁场的场发生器(10)和用于检测第一/第二/第三组件的第一/第二/第三元件(R1-R4,S1-S4,T1-T4)的传感器装置(2) 的平面中的磁场和可移动物体(14),用于响应于在第一/第二/第三方向上改变可移动物体(14)的第一/第二/第三加速度,改变第一/第二/第三分量 飞机中的磁场。 第一(第二,第三)场检测器(11,12,13)比其他加速度对第一(第二,第三)加速度更敏感。 这种装置(1)具有良好的灵敏度和良好的线性度。 元件(R1-R4,S1-S4,T1-T4)构成桥梁的一部分。 第一元件(R1-R4)可以是圆形或矩形形式,第二和第三元件(S1-S4,T1-T4)可以是太阳光束的形式。

    DETECTION CIRCUIT FOR DETECTING MOVEMENTS OF A MOVABLE OBJECT
    9.
    发明申请
    DETECTION CIRCUIT FOR DETECTING MOVEMENTS OF A MOVABLE OBJECT 审中-公开
    用于检测可移动物体的运动的检测电路

    公开(公告)号:US20090101804A1

    公开(公告)日:2009-04-23

    申请号:US12297464

    申请日:2007-04-18

    申请人: Kim Phan Le

    发明人: Kim Phan Le

    IPC分类号: H01J40/14

    摘要: Detection circuits (1) for detecting movements of movable objects (2) such as joysticks are provided with first detectors (100) for detecting first movements of the joysticks in first directions, comprising first detection units (101) for detecting a presence/absence of light spots (3), locations of the light spots (3) depending on said first movements, and with second detectors (200) for detecting second movements of the joysticks in second directions, comprising second detection units (201) for detecting first second intensities of the light spots (3), intensities of the light spots (3) depending on said second movements. Such detection circuits (1) are less sensitive to misalignment of components during an assembly and simpler to produce and less costly. The second detectors (200) are entirely located within the light spot (3) independently from positions of the joysticks and the first and third detectors are partly located within the light spot (3) dependently on positions of the joysticks. The detection units (101) comprise photo diodes (120) and transistors (121) for digitizing the signals from the photo diodes (120).

    摘要翻译: 用于检测诸如操纵杆的可移动物体(2)的移动的检测电路(1)设置有用于检测操纵杆在第一方向上的第一移动的第一检测器(100),包括用于检测操纵杆的存在/不存在的第一检测单元(101) 光点(3),取决于所述第一移动的光点(3)的位置,以及用于检测操纵杆在第二方向上的第二移动的第二检测器(200),包括用于检测第一第二强度的第二检测单元 的光斑(3)的强度,取决于所述第二移动的光斑(3)的强度。 这种检测电路(1)在组装期间对组件的未对准不那么敏感,并且制造更简单并且成本更低。 第二检测器(200)独立于操纵杆的位置完全位于光点(3)内,并且第一和第三检测器部分地位于光点(3)内,这取决于操纵杆的位置。 检测单元(101)包括用于使来自光电二极管(120)的信号进行数字化的光电二极管(120)和晶体管(121)。

    DETECTION CIRCUIT FOR DETECTING MOVEMENTS OF A MOVABLE OBJECT
    10.
    发明申请
    DETECTION CIRCUIT FOR DETECTING MOVEMENTS OF A MOVABLE OBJECT 审中-公开
    用于检测可移动物体的运动的检测电路

    公开(公告)号:US20090101803A1

    公开(公告)日:2009-04-23

    申请号:US12297462

    申请日:2007-04-17

    申请人: Kim Phan Le

    发明人: Kim Phan Le

    IPC分类号: H01J40/14

    摘要: Detection circuits (1) for detecting movements of movable objects (2) such as joysticks are provided with detectors (100,200) for detecting movements of the movable objects (2), comprising detection units (101-136,201-204) for detecting light spots (3) from sources (4), the light spots (3) depending on said movements, and with reference detectors (300) for compensating for aging/process variations, comprising reference detection units (301-304) for calibrating the detection units (101-136,201-204). Such detection circuits (1) suffer from aging/process variations to a relatively small extent. First detectors (100) for detecting x or y movements are partly located within the light spot (3) dependently on positions of the joysticks and the reference detectors (300) are then entirely located within the light spot (3) independently from positions of the joysticks. Second detectors (200) for detecting z movements are entirely located within the light spot (3) independently from positions of the joysticks and the reference detectors (300) are then entirely located outside the light spot (3) independently from positions of the joysticks.

    摘要翻译: 用于检测诸如操纵杆的可移动物体(2)的移动的检测电路(1)设置有用于检测可移动物体(2)的移动的检测器(100,200),包括用于检测光斑的检测单元(101-136,201-204) 3)来自源(4),根据所述移动的光点(3)和用于补偿老化/过程变化的参考检测器(300),包括用于校准检测单元(101)的参考检测单元(301-304) -136,201-204)。 这种检测电路(1)的老化/过程变化相对较小。 用于检测x或y运动的第一检测器(100)部分地位于光点(3)内,这取决于操纵杆的位置,并且参考检测器(300)然后完全位于光点(3)内,独立于位置 操纵杆 用于检测z运动的第二检测器(200)独立于操纵杆的位置完全位于光斑(3)内,并且参考检测器(300)然后独立于操纵杆的位置完全位于光斑(3)的外部。