公开(公告)号：USRE35566E

公开(公告)日：1997-07-22

申请号：US614453

申请日：1996-03-12

申请人： Jeffrey E. Boyer ,  Mark J. Brashaw ,  Brad L. Cummins ,  Timothy K. Erickson ,  Gary R. O'Brien, Jr. ,  Duane J. Sies

发明人： Jeffrey E. Boyer ,  Mark J. Brashaw ,  Brad L. Cummins ,  Timothy K. Erickson ,  Gary R. O'Brien, Jr. ,  Duane J. Sies

IPC分类号： G01N33/18 ,  A47L15/42 ,  A47L15/46 ,  D06F33/02 ,  D06F39/00 ,  G01N21/59 ,  G01N27/06

CPC分类号： A47L15/4287 ,  A47L15/4297 ,  D06F39/004

摘要： A plurality of fluid condition sensors are combined together to provide a sensor cluster that senses turbidity, temperature, conductivity and the movement of a ferromagnetic object. The plurality of sensors are attached to a substrate and encapsulated, by an overmolding process, with a light transmissive and fluid impermeable material. The sensor cluster can be disposed at numerous different locations within a body of fluid and does not require a conduit to direct the fluid to a particular location proximate the sensor. In a preferred embodiment of the present invention, a circuit is provided which monitors the signal strength of first and second light sensitive components to determine turbidity and, in addition, those signal strengths are also used to advantageously determine the most efficient magnitude of current necessary to drive a light source, such as a light emitting diode. By controlling the current to a light emitting diode as a function of the strength of light signal received by first and second light sensitive components, the turbidity sensor can be operated at a more efficient and effect level.

摘要翻译： 多个流体状态传感器组合在一起以提供感测浑浊度，温度，导电性和铁磁性物体移动的传感器簇。 多个传感器附接到基底，并通过包覆成型工艺用透光和流体不可渗透的材料进行封装。 传感器簇可以设置在流体体内的许多不同位置处，并且不需要导管将流体引导到靠近传感器的特定位置。 在本发明的优选实施例中，提供了一种电路，其监测第一和第二光敏元件的信号强度以确定浊度，并且另外，这些信号强度也用于有利地确定最有效的电流幅度 驱动光源，例如发光二极管。 通过根据由第一和第二光敏部件接收的光信号的强度来控制发光二极管的电流，可以以更有效和效果的水平操作浊度传感器。

公开(公告)号：US5446531A

公开(公告)日：1995-08-29

申请号：US246902

申请日：1994-05-20

申请人： Jeffrey E. Boyer ,  Mark J. Brashaw ,  Brad L. Cummins ,  Timothy K. Erickson ,  Gary R. O'Brien, Jr. ,  Duane J. Sies

发明人： Jeffrey E. Boyer ,  Mark J. Brashaw ,  Brad L. Cummins ,  Timothy K. Erickson ,  Gary R. O'Brien, Jr. ,  Duane J. Sies

IPC分类号： G01N33/18 ,  A47L15/42 ,  A47L15/46 ,  D06F33/02 ,  D06F39/00 ,  G01N21/59 ,  G01N27/06

CPC分类号： A47L15/4287 ,  A47L15/4297 ,  D06F39/004

摘要： A plurality of fluid condition sensors are combined together to provide a sensor cluster that senses turbidity, temperature, conductivity and the movement of a ferromagnetic object. The plurality of sensors are attached to a substrate and encapsulated, by an overmolding process, with a light transmissive and fluid impermeable material. The sensor cluster can be disposed at numerous different locations within a body of fluid and does not require a conduit to direct the fluid to a particular location proximate the sensor. In a preferred embodiment of the present invention, a circuit is provided which monitors the signal strength of first and second light sensitive components to determine turbidity and, in addition, those signal strengths are also used to advantageously determine the most efficient magnitude of current necessary to drive a light source, such as a light emitting diode. By controlling the current to a light emitting diode as a function of the strength of light signal received by first and second light sensitive components, the turbidity sensor can be operated at a more efficient and effect level.

摘要翻译： 多个流体状态传感器组合在一起以提供感测浑浊度，温度，导电性和铁磁性物体移动的传感器簇。 多个传感器附接到基底，并通过包覆成型工艺用透光和流体不可渗透的材料进行封装。 传感器簇可以设置在流体体内的许多不同位置处，并且不需要导管将流体引导到靠近传感器的特定位置。 在本发明的优选实施例中，提供了一种电路，其监测第一和第二光敏元件的信号强度以确定浊度，并且另外，这些信号强度也用于有利地确定最有效的电流幅度 驱动光源，例如发光二极管。 通过根据由第一和第二光敏部件接收的光信号的强度来控制发光二极管的电流，可以以更有效和效果的水平操作浊度传感器。

公开(公告)号：US06474451B1

公开(公告)日：2002-11-05

申请号：US09931158

申请日：2001-08-16

申请人： Gary R. O'Brien, Jr.

发明人： Gary R. O'Brien, Jr.

IPC分类号： F16D6600

CPC分类号： B60T7/08 ,  B60T7/042 ,  B60T17/228

摘要： A sensor for determining the on/off condition of a railroad car handbrake that utilizes a manual wheel which applies tension to a chain extending under the car to the brake setting system and the sensor utilizes a bias member which pushes against the side of the chain so that when the car brakes are not set, and the chain is loose, the bias member moves to distort the chain and such movement causes a sensor, such as a Hall effect device, to approach a magnetic member to produce a signal indicating that the brake is in a released condition.

摘要翻译： 一种用于确定铁路车辆手制动器的开/关状态的传感器，其利用对在车辆下方延伸的链条向制动设置系统施加张力的手动车轮，并且传感器利用推动链条侧面的偏压构件 当汽车制动器未被设定并且链条松动时，偏置构件移动以扭曲链条，并且这种移动导致诸如霍尔效应装置的传感器接近磁性构件以产生指示制动器 处于释放状态。