MAGNETIC DIFFERENTIAL FIELD SENSOR USING HYSTERESIS FIELD IN AMR FILMS
    1.
    发明申请
    MAGNETIC DIFFERENTIAL FIELD SENSOR USING HYSTERESIS FIELD IN AMR FILMS 审中-公开
    磁性差分磁场传感器在磁共振膜中使用滞后场

    公开(公告)号:WO2004038441A1

    公开(公告)日:2004-05-06

    申请号:PCT/US2003/033191

    申请日:2003-10-17

    CPC classification number: G01R33/09

    Abstract: A method and system for detecting a magnetic field utilizing a magnetoresistor (100) of a magnetic sensor are described herein. A normalized magnetoresistance associated with the magnetoresistor (100) can be calculated such that the magnetoresistor (100) comprises an initial magnetization direction thereof. The magnetic field is generally permitted to exceed (408) an ability of the magnetoresistor (100) to remain pointed in the initial magnetization direction, thereby enabling the magnetoresistor (100) to experience a magnetization reversal (300) thereof. The normalized resistance may be placed into a new state in response to the magnetization reversal (300) thereof, thereby permitting the normalized resistance to be utilized as a switch thereof and allowing the magnetic sensor to detect changes in the magnetic field associated with the magnetoresistor (100).

    Abstract translation: 本文描述了利用磁传感器的磁阻(100)检测磁场的方法和系统。 可以计算与磁电阻(100)相关联的归一化磁阻,使得磁敏电阻(100)包括其初始磁化方向。 磁场通常被允许超过(408)磁敏电阻(100)在初始磁化方向上保持指向的能力,从而使得磁敏电阻(100)能够经历其磁化反转(300)。 归一化电阻可以响应于其磁化反转(300)而被置于新状态,从而允许归一化电阻用作其开关,并且允许磁传感器检测与磁电阻相关联的磁场的变化( 100)。

    OPTO-ELECTRONIC TRANSMISSIVE EDGE LOCATION SENSOR
    2.
    发明申请
    OPTO-ELECTRONIC TRANSMISSIVE EDGE LOCATION SENSOR 审中-公开
    OPTO-ELECTRONIC传动边缘位置传感器

    公开(公告)号:WO2004063663A2

    公开(公告)日:2004-07-29

    申请号:PCT/US2004/000297

    申请日:2004-01-08

    CPC classification number: G01D5/342 G01B11/028

    Abstract: Optical sensor methods and systems for detecting the edge of an object are disclosed. An optical sensor having dual equal area active regions can be provided, and a uniform light source located opposite the optical sensor, such that an occlusion of light from the uniform light source provides location determination data of an object via the optical sensor regardless of the direction of motion of the occlusion relative to the dual equal area active regions thereof.

    Abstract translation: 公开了用于检测物体边缘的光学传感器方法和系统。 可以提供具有双等同区域有源区域的光学传感器,以及与光学传感器相对的均匀的光源,使得来自均匀光源的光的遮挡通过光学传感器提供物体的位置确定数据,而不管方向如何 闭塞相对于其相等面积活动区域的运动。

    VCSEL PIN SENSOR
    3.
    发明申请
    VCSEL PIN SENSOR 审中-公开
    VCSEL PIN传感器

    公开(公告)号:WO2007022040A1

    公开(公告)日:2007-02-22

    申请号:PCT/US2006/031559

    申请日:2006-08-10

    Abstract: A vertical cavity surface emitting laser (VCSEL) operable as a signal emitter and a silicon photodetector adapted for receiving light signals co-mounted in a common canister. Also containable is a four lead header and an isolating ceramic spacer. The canister can be electrically connected to a first lead from the header. The isolating ceramic spacer is adapted for mounting of the VCSEL above the level of the photodetector within the can. The VCSEL is electrically connectable to a second and third lead from the header and the photodetector is electrically connectable to the second and a fourth lead from the header. Co- packaging of a VCSEL and photodetector in common device canisters can yield about a 20:1 contrast ratio between an object's presence in front of the sensing system. A small pattern necessary for high accuracy is provided by the system and no barrier is necessary between the emitter and detector.

    Abstract translation: 可用作信号发射器的垂直腔表面发射激光器(VCSEL)和适于接收共同安装在公共罐中的光信号的硅光电探测器。 还可以容纳四个引线头和隔离陶瓷间隔件。 罐可以从头部电连接到第一引线。 隔离陶瓷间隔件适于将VCSEL安装在罐内的光电检测器的水平面上方。 VCSEL可以从头部电连接到第二和第三引线,并且光电检测器可从头部电连接到第二和第四引线。 VCSEL和光电检测器在通用器件盒中的共包装可以在物体在感测系统之前存在时产生大约20:1的对比度。 通过该系统提供高精度所需的小图案,并且在发射器和检测器之间不需要屏障。

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