公开(公告)号：US06798193B2

公开(公告)日：2004-09-28

申请号：US10219239

申请日：2002-08-14

申请人： Mike W. Zimmerman ,  Lamar F. Ricks ,  Curtis B. Johnson ,  Joel D. Stolfus ,  Douglas L. Mueller

发明人： Mike W. Zimmerman ,  Lamar F. Ricks ,  Curtis B. Johnson ,  Joel D. Stolfus ,  Douglas L. Mueller

IPC分类号： G01R3500

CPC分类号： G01D5/147 ,  G01R33/06 ,  Y10T29/49007

摘要： A calibrated, low-profile magnetic sensor and method for forming such a sensor are described herein. Generally, a magnetic sensing device is formed within a housing, wherein the magnetic sensing device comprises at least one magnet. The magnetic sensor includes a compact integrated circuit package such as, for example, a small outline integrated circuit package (SOIC). A magnetic sensing element is generally mounted to the compact integrated circuit package. The magnetic sensing device can be configured to additionally incorporate a printed circuit board (PCB) having a hole formed therein such that the compact integrated circuit package can be surface mounted off-center on the printed circuit board, so that the hole can be located within the printed circuit board to match a shape of the magnet, allowing the magnet to pass through the circuit board adjacent to the SOIC to complete the magnetic circuit. An orifice placed with in the housing permits a tool to be passed through the orifice within the housing to contact the magnet. The magnet can be placed in the optimum position for calibration of the magnetic circuit thereof. The same orifice that is used for calibrating the position of the magnet can also be utilized as an injection port for encapsulating the device using an injection epoxy dispensing process.

摘要翻译： 本文描述了用于形成这种传感器的经校准的低轮廓磁传感器和方法。 通常，在壳体内形成磁感测装置，其中磁感测装置包括至少一个磁体。 磁传感器包括紧凑的集成电路封装，例如小外形集成电路封装（SOIC）。 磁感应元件通常安装在小型集成电路封装上。 磁感测装置可以被配置成额外结合具有形成在其中的孔的印刷电路板（PCB），使得紧凑型集成电路封装可以在印刷电路板上偏心地表面安装，使得孔可以位于 印刷电路板与磁体形状相匹配，允许磁体通过与SOIC相邻的电路板，以完成磁路。 放置在壳体中的孔允许工具穿过壳体内的孔口以接触磁体。 可以将磁体置于用于校准其磁路的最佳位置。 用于校准磁体位置的相同的孔口也可以用作用于使用注射环氧树脂分配工艺来封装装置的注射端口。

公开(公告)号：US06771063B2

公开(公告)日：2004-08-03

申请号：US09999507

申请日：2001-11-15

申请人： Joel D. Stolfus

发明人： Joel D. Stolfus

IPC分类号： G01P348

CPC分类号： G01P3/489

摘要： A system for improving the duty cycle output of a vehicle speed sensor circuit is disclosed. The vehicle speed sensor circuit can be configured, for example as a binary counter, to provide a particular number of pulses per distance of vehicle travel. An output of the vehicle speed sensor circuit is generally divided by placing varying values on particular load pins of an associated counter circuit, thereby providing a substantially improved duty cycle output from the vehicle speed sensor circuit, which is independent of an associated sensor duty cycle. The output of the vehicle speed sensor circuit can be divided utilizing a toggle flip-flop circuit integrated with the vehicle speed sensor circuit. The toggle flip-flop can be configured as an edge-triggered toggle flip-flop. The vehicle speed sensor can be utilized to sense rotating members present in a vehicle. The vehicle speed sensor thus provides a digital pulse output for every tooth that passes in front of the vehicle speed sensor.

摘要翻译： 公开了一种用于改善车速传感器电路的占空比输出的系统。 车速传感器电路可以被配置为例如作为二进制计数器，以提供每个车辆行驶距离的特定数量的脉冲。 车速传感器电路的输出通常通过在相关联的计数器电路的特定负载引脚上设置变化的值来分割，从而提供来自车速传感器电路的显着改进的占空比输出，其独立于相关联的传感器占空比。 可以使用与车速传感器电路集成的切换触发器电路来分配车速传感器电路的输出。 拨码触发器可以配置为边沿触发开关触发器。 车速传感器可用于检测车辆中存在的旋转部件。 因此，车速传感器为通过车速传感器前方的每个齿轮提供数字脉冲输出。