公开(公告)号：US20050151659A1

公开(公告)日：2005-07-14

申请号：US11010645

申请日：2004-12-13

申请人： David Donovan ,  Robert Joyce ,  Lance Sabados

发明人： David Donovan ,  Robert Joyce ,  Lance Sabados

IPC分类号： G01L20060101 ,  G08B21/00

CPC分类号： H02G7/00 ,  G01R31/085 ,  G08C25/00

摘要： The present invention includes a fault indicator for an electrical transmission line comprising: a fault indicator circuit; and a remote communicator operatively coupled to the fault indicator circuit to transmit condition data to a remote location, where such condition data includes current load data. The invention also includes a method of monitoring and responding to current faults and load variations across an electrical transmission network, the method comprising: installing two fault indicators in electrical communication with an electrical transmission network and including two-way communication capability; generating, by the two fault indicators, condition data specific to a respective location of each of the two fault indicators, where such condition data includes current load data; transmitting the condition data from the two fault indicators to a remote location; receiving, at the remote location, the condition data transmitted from the two fault indicators; and, monitoring and processing the condition data received.

摘要翻译： 本发明包括用于电力传输线的故障指示器，包括：故障指示器电路; 以及远程通信器，可操作地耦合到所述故障指示器电路，以将条件数据发送到远程位置，其中所述条件数据包括当前负载数据。 本发明还包括一种监测和响应电气传输网络上的当前故障和负载变化的方法，所述方法包括：将两个故障指示器与电力传输网络电连接并且包括双向通信能力; 通过两个故障指示器产生特定于两个故障指示器中的每一个的相应位置的条件数据，其中这些条件数据包括当前负载数据; 将条件数据从两个故障指示器传输到远程位置; 在远程位置接收从两个故障指示符发送的条件数据; 以及监视和处理接收到的条件数据。

公开(公告)号：US20050034523A1

公开(公告)日：2005-02-17

申请号：US10854909

申请日：2004-05-27

申请人： Richard Casimiro ,  Steven Lantagne

发明人： Richard Casimiro ,  Steven Lantagne

IPC分类号： G01L20060101 ,  G01L7/00 ,  G01L19/00

CPC分类号： G01L19/0007

摘要： A pressure transmitter apparatus includes a unitary body with two, normally vertical pressure passageways communicating respectively between opposed pressure openings extending normally horizontally through the body portion. A transducer for generating a differential pressure signal mounts on a transducer mounting element, coupled to the body portion and located above the pressure passageways. A pair of diaphragm elements can form first and second process diaphragms, closing first and second pressure openings. Flange elements overlie the diaphragm elements and are removably and replaceably secured to the body portion, having liquid drainage and gas purging passageways. A flame retardation element can be disposed within at least one of the pressure passageways. An overrange protection element can be integrally arranged with the unitary body portion to protect the transducer from overrange pressure fluctuations. Extensions on the flange elements afford a variety of mounting options, including mounting to industry standard pipe mountings.

公开(公告)号：US4689999A

公开(公告)日：1987-09-01

申请号：US759626

申请日：1985-07-26

申请人： Zvi Shkedi

发明人： Zvi Shkedi

IPC分类号： G01L9/12 ,  G01L20060101 ,  G01L9/00 ,  G01L19/02 ,  G01L7/08 ,  G01L19/04

CPC分类号： G01L19/02 ,  G01L9/0075

摘要： A quartz pressure transducer is disclosed which includes four or five elements, three of which are diaphragms containing deposited metal electrodes on both sides thereof. Since the electrodes are all on the diaphragms, the transducer disclosed herein is highly resistant to errors caused by changes in temperature, while retaining excellent resistance to errors caused by acceleration or vibration forces. The transducer may be constructed as either an absolute pressure sensor or as a differential pressure sensor, and in the primary embodiment contains a reference capacitance which may be used by appropriate electronic circuitry to provide compensation for acceleration or vibration forces, making the output of the pressure transducer of the present invention a highly accurate, highly sensitive indication of pressure sensed.

摘要翻译： 公开了一种石英压力传感器，其包括四个或五个元件，其中三个是其两侧包含沉积的金属电极的隔膜。 由于电极都在隔膜上，因此本文公开的换能器对由温度变化引起的误差具有很高的抵抗力，同时保持对加速度或振动力引起的误差的良好抵抗力。 传感器可以被构造为绝对压力传感器或差压传感器，并且在主要实施例中包含参考电容，该参考电容可由适当的电子电路用于为加速度或振动力提供补偿，从而使压力的输出 本发明的传感器是高度精确，高灵敏度的感测压力指示。

公开(公告)号：US20050229710A1

公开(公告)日：2005-10-20

申请号：US10914909

申请日：2004-08-10

申请人： John O'Dowd ,  Damien McCartney ,  William Hunt ,  Eamon Hynes ,  John Wynne ,  Patrick Crowley ,  John Martin

发明人： John O'Dowd ,  Damien McCartney ,  William Hunt ,  Eamon Hynes ,  John Wynne ,  Patrick Crowley ,  John Martin

IPC分类号： G01L20060101 ,  G01L9/00 ,  G01L9/12 ,  G01L13/02

CPC分类号： G01L9/0072 ,  G01L9/0073 ,  G01L9/0075 ,  G01L13/025 ,  G01L19/0076 ,  H01L2224/48091 ,  H01L2924/3025 ,  H01L2924/00014 ,  H01L2924/00

摘要： A capacitive sensor including a housing having a hermetically sealed cavity, a plate in the cavity, a diaphragm forming a part of the cavity and spaced from the plate, a conductive layer on the first diaphragm, and a second conductive layer on the plate, the first and second conductive layers being the electrodes of a capacitor whose capacitance varies with the position of the diaphragm relative to the plate.

摘要翻译： 一种电容传感器，包括具有气密密封空腔的壳体，腔体中的板，形成腔的一部分并与板隔开的隔膜，第一隔膜上的导电层和板上的第二导电层， 第一和第二导电层是电容器的电极，其电容随着隔膜相对于板的位置而变化。

公开(公告)号：US06918303B2

公开(公告)日：2005-07-19

申请号：US10854909

申请日：2004-05-27

申请人： Richard P. Casimiro ,  Steven D. Lantagne

发明人： Richard P. Casimiro ,  Steven D. Lantagne

IPC分类号： G01L20060101 ,  G01L7/00 ,  G01L19/00

CPC分类号： G01L19/0007

摘要： A pressure transmitter apparatus includes a unitary body with two, normally vertical pressure passageways communicating respectively between opposed pressure openings extending normally horizontally through the body portion. A transducer for generating a differential pressure signal mounts on a transducer mounting element, coupled to the body portion and located above the pressure passageways. A pair of diaphragm elements can form first and second process diaphragms, closing first and second pressure openings. Flange elements overlie the diaphragm elements and are removably and replaceably secured to the body portion, having liquid drainage and gas purging passageways. A flame retardation element can be disposed within at least one of the pressure passageways. An overrange protection element can be integrally arranged with the unitary body portion to protect the transducer from overrange pressure fluctuations. Extensions on the flange elements afford a variety of mounting options, including mounting to industry standard pipe mountings.

摘要翻译： 一种压力变送器装置包括具有两个通常垂直的压力通道的单体，所述通道垂直于通过主体部分正常水平延伸的相对的压力开口。 用于产生差压信号的换能器安装在换能器安装元件上，耦合到主体部分并且位于压力通道上方。 一对隔膜元件可以形成第一和第二过程隔膜，关闭第一和第二压力开口。 法兰元件覆盖隔膜元件，并且可移除地和可替换地固定到主体部分，具有液体排出和气体吹扫通道。 阻燃元件可以设置在至少一个压力通道内。 整体式保护元件可以与整体式主体部分整体地布置，以保护换能器免受过大的压力波动的影响。 法兰元件上的扩展提供了各种安装选项，包括安装到工业标准管道安装。

公开(公告)号：US4466290A

公开(公告)日：1984-08-21

申请号：US325342

申请日：1981-11-27

申请人： Roger L. Frick

发明人： Roger L. Frick

IPC分类号： G01L13/00 ,  G01L20060101 ,  G01L7/08 ,  G01L9/00 ,  G01L9/12

CPC分类号： G01L19/148 ,  G01L13/025 ,  G01L19/0038 ,  G01L19/0645 ,  G01L19/142 ,  G01L27/002

摘要： An improved apparatus for conveying fluid pressures to a differential pressure transducer is disclosed. The apparatus comprises a single flange connected to and fluidly coupled to the differential pressure transducer for conveying the fluid pressures thereto. A further improvement comprises incorporating a three valve manifold integral to the single flange for controlling the fluid pressure to the differential pressure transducer.

摘要翻译： 公开了一种用于将流体压力输送到压差传感器的改进的装置。 该装置包括连接到压差传感器并流体耦合到差压传感器的单个凸缘，用于将流体压力输送到其上。 进一步的改进包括将单个法兰的三通阀集成为一体，以控制压差传感器的流体压力。

公开(公告)号：US4370890A

公开(公告)日：1983-02-01

申请号：US194758

申请日：1980-10-06

申请人： Roger L. Frick

发明人： Roger L. Frick

IPC分类号： G01L9/12 ,  G01L20060101 ,  G01L9/00 ,  G01L13/02 ,  G01L13/06 ,  H01G7/00

CPC分类号： G01L13/025 ,  G01L9/0072

摘要： A capacitance transducer has a central chamber with a conductive diaphragm disposed therein to separate the chamber into at least two portions, at least one portion having an electrical conductor disposed thereon to form in combination with the diaphragm at least one variable sensor capacitor, and wherein at least one portion of the chamber is coupled by a passageway to communicate with an isolator having an isolator chamber and an isolator diaphragm which in combination with the conductive diaphragm enclose a substantially incompressible fluid such that when pressure is applied to an exposed side of the isolation diaphragm, the conductive diaphragm is urged to deflect and thus change the sensor capacitance. Configuration of the isolators, spaced from the sensor capacitors, and other factors disclosed herein, eliminate unwanted mechanical and thermal stresses thereby improving the capacitive sensors' response to pressure.

摘要翻译： 电容换能器具有中心室，其中设置有导电隔膜以将腔室分隔成至少两个部分，至少一个部分具有布置在其上的电导体以与隔膜结合形成至少一个可变传感器电容器，并且其中在 腔室的至少一部分通过通道连接，以与具有隔离器室和隔离膜的隔离器连通，该隔离器与隔离隔膜结合，导电隔膜与基本上不可压缩的流体结合，使得当压力施加到隔离隔膜的暴露侧时 ，促使导电膜片偏转，从而改变传感器电容。 与传感器电容器间隔开的隔离器以及本文公开的其它因素的结构消除了不必要的机械和热应力，从而改善了电容传感器对压力的响应。

公开(公告)号：US20050050955A1

公开(公告)日：2005-03-10

申请号：US10660175

申请日：2003-09-10

申请人： Kenneth Gall ,  James Cook ,  Brian Marsh ,  Richard Dale

发明人： Kenneth Gall ,  James Cook ,  Brian Marsh ,  Richard Dale

IPC分类号： G01L20060101 ,  G01L7/08 ,  G01L9/00

CPC分类号： G01L9/0064 ,  G01L9/0025

摘要： A sensor apparatus and method are disclosed herein, including a sensor element located on a base and a cover located proximate to the base. The cover generally includes a sensor diaphragm and a dimple that can form a part of the cover. A flanged area or flanged portion can also be connected to the bottom portion of the cover. The flanged area provides a surface for contacting a fixture to which the sensor apparatus attaches and holding the sensor apparatus to the fixture in a manner which prevents the sensor diaphragm from contacting the fixture and inducing errors during sensor operations thereof. The cover also can include a flanged or brim-shaped portion which is connected to and surrounds the bottom portion of the cover. The flanged portion can be positioned parallel to the sensor diaphragm.

公开(公告)号：US5483822A

公开(公告)日：1996-01-16

申请号：US238546

申请日：1994-05-05

申请人： Thomas Albrecht ,  Marco Tortonese ,  Robert Barrett

发明人： Thomas Albrecht ,  Marco Tortonese ,  Robert Barrett

IPC分类号： G01B7/16 ,  G01B20060101 ,  G01B7/34 ,  G01B21/30 ,  G01L20060101 ,  G01L1/18 ,  G01Q20/04 ,  G01Q60/38 ,  G01Q60/40 ,  G01Q70/02 ,  H01J37/28 ,  H01L21/34

CPC分类号： G01Q60/38 ,  B82Y35/00 ,  G01Q20/04 ,  Y10S977/851 ,  Y10S977/873

摘要： A microminiature cantilever structure is provided having a cantilever arm with a piezoresistive resistor embedded in at least the fixed end of the cantilever arm. Deflection of the free end of the cantilever arm produces stress in the base of the cantilever. That stress changes the piezoresistive resistor's resistance at the base of the cantilever in proportion to the cantilever arm's deflection. Resistance measuring apparatus is coupled to the piezoresistive resistor to measure its resistance and to generate a signal corresponding to the cantilever arm's deflection. The microminiature cantilever is formed on a semiconductor substrate. A portion of the free end of the cantilever arm is doped to form an electrically separate U-shaped piezoresistive resistor. The U-shaped resistor has two legs oriented parallel to an axis of the semiconductor substrate having a non-zero piezoresistive coefficient. A metal layer is deposited over the semiconductor's surface and patterned to form an electrical connection between the piezoresistive resistor and a resistance measuring circuit, enabling measurement of the piezoresistive resistor's resistance. Finally, the semiconductor substrate below said cantilever arm is substantially removed so as to form a cantilevered structure, and a tip is connected to the free end of the cantilever arm to facilitate the structure's use in an atomic force microscope.

摘要翻译： 提供了一种微型悬臂结构，其具有悬臂，其具有嵌入到悬臂的至少固定端的压阻电阻器。 悬臂的自由端的偏转在悬臂的底部产生应力。 该应力与悬臂的偏转成比例地改变了压阻电阻器在悬臂底部的电阻。 电阻测量装置耦合到压阻电阻器以测量其电阻并产生对应于悬臂的偏转的信号。 微型悬臂形成在半导体衬底上。 掺杂悬臂的自由端的一部分以形成电分离的U形压阻电阻器。 U形电阻器具有平行于具有非零压阻系数的半导体衬底的轴线定向的两个腿。 金属层沉积在半导体表面上并被图案化以在压阻电阻器和电阻测量电路之间形成电连接，使得能够测量压阻电阻器的电阻。 最后，基本上除去所述悬臂下面的半导体衬底以形成悬臂结构，并且尖端连接到悬臂的自由端，以便于结构在原子力显微镜中的使用。

公开(公告)号：US5345815A

公开(公告)日：1994-09-13

申请号：US954695

申请日：1992-09-30

申请人： Thomas Albrecht ,  Marco Tortonese ,  Robert Barrett

发明人： Thomas Albrecht ,  Marco Tortonese ,  Robert Barrett

IPC分类号： G01B7/16 ,  G01B20060101 ,  G01B7/34 ,  G01B21/30 ,  G01L20060101 ,  G01L1/18 ,  G01Q20/04 ,  G01Q60/38 ,  G01Q60/40 ,  G01Q70/02 ,  H01J37/28 ,  H01L21/34

CPC分类号： G01Q60/38 ,  B82Y35/00 ,  G01Q20/04 ,  Y10S977/851 ,  Y10S977/873

摘要： A microminiature cantilever structure is provided having a cantilever arm with a piezoresistive resistor embedded in at least the fixed end of the cantilever arm. Deflection of the free end of the cantilever arm produces stress in the base of the cantilever. That stress changes the piezoresistive resistor's resistance at the base of the cantilever in proportion to the cantilever arm's deflection. Resistance measuring apparatus is coupled to the piezoresistive resistor to measure its resistance and to generate a signal corresponding to the cantilever arm's deflection. The microminiature cantilever is formed on a semiconductor substrate. A portion of the free end of the cantilever arm is doped to form an electrically separate U-shaped piezoresistive resistor. The U-shaped resistor has two legs oriented parallel to an axis of the semiconductor substrate having a non-zero piezoresistive coefficient. A metal layer is deposited over the semiconductor's surface and patterned to form an electrical connection between the piezoresistive resistor and a resistance measuring circuit, enabling measurement of the piezoresistive resistor's resistance. Finally, the semiconductor substrate below the cantilever arm is substantially removed so as to form a cantilevered structure, and a tip is connected to the free end of the cantilever arm to facilitate the structure's use in an atomic force microscope.

摘要翻译： 提供了一种微型悬臂结构，其具有悬臂，其具有嵌入到悬臂的至少固定端的压阻电阻器。 悬臂的自由端的偏转在悬臂的底部产生应力。 该应力与悬臂的偏转成比例地改变了压阻电阻器在悬臂底部的电阻。 电阻测量装置耦合到压阻电阻器以测量其电阻并产生对应于悬臂的偏转的信号。 微型悬臂形成在半导体衬底上。 掺杂悬臂的自由端的一部分以形成电分离的U形压阻电阻器。 U形电阻器具有平行于具有非零压阻系数的半导体衬底的轴线定向的两个腿。 金属层沉积在半导体表面上并被图案化以在压阻电阻器和电阻测量电路之间形成电连接，使得能够测量压阻电阻器的电阻。 最后，基本上移除悬臂下面的半导体衬底以形成悬臂结构，并且尖端连接到悬臂的自由端，以便于结构在原子力显微镜中的使用。