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12 条记录 (耗时 0.027 秒)

    Two-wire field-mounted process device
    1.
    发明授权
    Two-wire field-mounted process device 有权
    双线现场安装工艺装置

    公开(公告)号：US06574515B1

    公开(公告)日：2003-06-03

    申请号：US09570268

    申请日：2000-05-12

    申请人： William R. Kirkpatrick ,  Robert J. Karschnia ,  Marcos Peluso ,  Steven J. DiMarco ,  Gary A. Lenz

    发明人： William R. Kirkpatrick ,  Robert J. Karschnia ,  Marcos Peluso ,  Steven J. DiMarco ,  Gary A. Lenz

    IPC分类号： G05B1101

    CPC分类号： G06F1/182 ,  G05B19/054 ,  G05B2219/1127 ,  G05B2219/1157 ,  G05B2219/1163 ,  G05B2219/14144 ,  G05B2219/15091 ,  G05B2219/25188 ,  G06F3/05 ,  H05K7/1472 ,  H05K7/1484

    摘要： A two-wire field-mounted process device with multiple isolated channels includes a channel that can be an input channel or an output channel. The given input or output channel can couple to multiple sensors or actuators, respectively. The process device is wholly powered by the two-wire process control loop. The process device includes a controller adapted to measure one or more characteristics of sensors coupled to an input channel and to control actuators coupled to an output channel. The controller can be further adapted to execute a user generated control algorithm relating process input information with process output commands. The process device also includes a loop communicator that is adapted to communicate over the two-wire loop.

    摘要翻译： 具有多个隔离通道的双线现场安装处理装置包括可以是输入通道或输出通道的通道。 给定的输入或输出通道可以分别耦合到多个传感器或执行器。 过程装置由两线过程控制回路完全供电。 过程装置包括控制器，其适于测量耦合到输入通道的传感器的一个或多个特性，并且控制耦合到输出通道的致动器。 控制器还可以适用于执行与过程输出命令相关联的过程输入信息的用户生成的控制算法。 该处理装置还包括适于通过二线环路通信的环路通信器。

    Calibration of process control temperature transmitter
    4.
    发明授权
    Calibration of process control temperature transmitter 失效
    校准过程控制温度变送器

    公开(公告)号：US5669713A

    公开(公告)日：1997-09-23

    申请号：US313452

    申请日：1994-09-27

    申请人： Bradley N. Schwartz ,  William R. Kirkpatrick

    发明人： Bradley N. Schwartz ,  William R. Kirkpatrick

    IPC分类号： G01K7/13 ,  G01K15/00

    CPC分类号： G01K7/20 ,  G01K15/00 ,  G01K7/13

    摘要： A transmitter in a process control loop measures temperature. A calibrator includes a known calibration element which is connected to the transmitter. Software in the transmitter compares a measured value of the calibration element with the actual value of the calibration element and responsively calibrates the transmitter. The calibrator includes a temperature calibration sensor for coupling to a terminal block of the transmitter. The temperature calibration sensor provides an actual temperature input to the transmitter. The transmitter measures actual temperature of the terminal block and compares actual temperature with a temperature measured by an internal terminal block temperature sensor, and responsively calibrates the internal temperature sensor.

    摘要翻译： 过程控制回路中的变送器测量温度。 校准器包括已连接到发射器的已知校准元件。 发射机中的软件将校准元件的测量值与校准元件的实际值进行比较，并响应校准变送器。 校准器包括用于耦合到发射器的端子块的温度校准传感器。 温度校准传感器为变送器提供实际温度输入。 变送器测量接线端子的实际温度，并将实际温度与内部端子块温度传感器测量的温度进行比较，并对内部温度传感器进行响应校准。

    Error compensation for a process fluid temperature transmitter
    5.
    发明授权
    Error compensation for a process fluid temperature transmitter 有权
    过程流体温度变送器的误差补偿

    公开(公告)号：US06356191B1

    公开(公告)日：2002-03-12

    申请号：US09335212

    申请日：1999-06-17

    申请人： William R. Kirkpatrick ,  Eric D. Rotvold

    发明人： William R. Kirkpatrick ,  Eric D. Rotvold

    IPC分类号： G08B2300

    CPC分类号： G01K7/20 ,  G08C19/02

    摘要： A process fluid temperature transmitter includes circuitry that improves compensation of error due to the presence of one or more non-associated voltage sources in a resistance temperature device (RTD) circuit. A method of compensating for such error is also provided.

    摘要翻译： 过程流体温度变送器包括改善由于在电阻温度器件（RTD）电路中存在一个或多个非相关电压源引起的误差补偿的电路。 还提供了补偿这种误差的方法。

    Calibration of process control temperature transmitter
    6.
    发明授权
    Calibration of process control temperature transmitter 失效
    校准过程控制温度变送器

    公开(公告)号：US5829876A

    公开(公告)日：1998-11-03

    申请号：US857236

    申请日：1997-05-16

    申请人： Bradley N. Schwartz ,  William R. Kirkpatrick

    发明人： Bradley N. Schwartz ,  William R. Kirkpatrick

    IPC分类号： G01K7/13 ,  G01K15/00

    CPC分类号： G01K7/20 ,  G01K15/00 ,  G01K7/13

    摘要： A transmitter in a process control loop measures temperature. A calibrator includes a known calibration element which is connected to the transmitter. Software in the transmitter compares a measured value of the calibration element with the actual value of the calibration element and responsively calibrates the transmitter. The calibrator includes a temperature calibration sensor for coupling to a terminal block of the transmitter. The temperature calibration sensor provides an actual temperature input to the transmitter. The transmitter measures actual temperature of the terminal block and compares actual temperature with a temperature measured by an internal terminal block temperature sensor, and responsively calibrates the internal temperature sensor.

    摘要翻译： 过程控制回路中的变送器测量温度。 校准器包括已连接到发射器的已知校准元件。 发射机中的软件将校准元件的测量值与校准元件的实际值进行比较，并响应校准变送器。 校准器包括用于耦合到发射器的端子块的温度校准传感器。 温度校准传感器为变送器提供实际温度输入。 变送器测量接线端子的实际温度，并将实际温度与内部端子块温度传感器测量的温度进行比较，并对内部温度传感器进行响应校准。

    Electric heater arrangement for fluid flow stream sensors
    7.
    发明授权
    Electric heater arrangement for fluid flow stream sensors 失效
    用于流体流动传感器的电加热器装置

    公开(公告)号：US4458137A

    公开(公告)日：1984-07-03

    申请号：US252289

    申请日：1981-04-09

    申请人： William R. Kirkpatrick

    发明人： William R. Kirkpatrick

    IPC分类号： G01P5/00 ,  G01P5/165 ,  H05B3/14 ,  H05B3/02 ,  G01F1/46 ,  G01P5/16 ,  H01C7/02

    CPC分类号： G01P5/165

    摘要： An air data sensor device, such as a pitot, total air temperature sensor, etc., includes an elongated probe having a sensor therein for sensing air flow parameters and a strut for positioning the probe in a desired position on an air vehicle. To avoid ice build-up on the device causing erroneous sensing of air flow parameters a substantially constant wattage electric resistive heater is provided in the probe for deicing. A PTC (positive temperature coefficient) resistive heater is disposed in the support at a location thermally isolated from the probe heater but in thermally conductive relationship to the external surface of the support. The PTC heater is connected in series with the probe heater and continuously varies heater power in response to the rate of heat dissipation at the external surface of the sensor device thereby preventing burn-out of the probe heater and erosion of the probe. A second constant wattage heater connected in parallel with the PTC heater is located within the probe and has a maximum rated power selected to insure that during conditions of minimum heat dissipation of the probe heater sufficient additional heat is supplied to the probe to perform the deicing function without raising the probe to damaging temperatures.

    摘要翻译： 诸如皮托，空气温度传感器等的空气数据传感器装置包括其中具有用于感测气流参数的传感器的细长探针和用于将探针定位在空中车辆上的期望位置的支柱。 为了避免设备上的积冰导致空气流动参数的错误检测，在探针中提供基本恒定的功率电阻加热器用于除冰。 PTC（正温度系数）电阻加热器设置在与探头加热器热隔离的位置处的支撑件中，但是与支撑件的外表面具有导热关系。 PTC加热器与探头加热器串联连接，响应于传感器装置外表面的散热速率而不断改变加热器功率，从而防止探头加热器烧坏和探头腐蚀。 与PTC加热器并联连接的第二个恒功率加热器位于探头内，并具有最大额定功率，以确保在探头加热器的最小散热条件下足够的额外热量供应到探头以执行除冰功能 而不会将探头升高到有害的温度。

    Switch for selectively coupling a sensor or calibration element to a terminal block
    9.
    发明授权
    Switch for selectively coupling a sensor or calibration element to a terminal block 有权
    用于选择性地将传感器或校准元件耦合到端子块的开关

    公开(公告)号：US6045260A

    公开(公告)日：2000-04-04

    申请号：US177414

    申请日：1998-10-23

    申请人： Bradley N. Schwartz ,  William R. Kirkpatrick

    发明人： Bradley N. Schwartz ,  William R. Kirkpatrick

    IPC分类号： G01K7/13 ,  G01K15/00 ,  G01K7/16

    CPC分类号： G01K7/20 ,  G01K15/00 ,  G01K7/13

    摘要： A transmitter in a process control loop measures temperature. A calibrator includes a known calibration element which is connected to the transmitter. Software in the transmitter compares a measured value of the calibration element with the actual value of the calibration element and responsively calibrates the transmitter. The calibrator includes a temperature calibration sensor for coupling to a terminal block of the transmitter. The temperature calibration sensor provides an actual temperature input to the transmitter. The transmitter measures actual temperature of the terminal block and compares actual temperature with a temperature measured by an internal terminal block temperature sensor, and responsively calibrates the internal temperature sensor.

    摘要翻译： 过程控制回路中的变送器测量温度。 校准器包括已连接到发射器的已知校准元件。 发射机中的软件将校准元件的测量值与校准元件的实际值进行比较，并响应校准变送器。 校准器包括用于耦合到发射器的端子块的温度校准传感器。 温度校准传感器为变送器提供实际温度输入。 变送器测量接线端子的实际温度，并将实际温度与内部端子块温度传感器测量的温度进行比较，并对内部温度传感器进行响应校准。

    Electrically heated air data sensing device
    10.
    发明授权
    Electrically heated air data sensing device 失效
    电加热空气数据传感装置

    公开(公告)号：US4121088A

    公开(公告)日：1978-10-17

    申请号：US733048

    申请日：1976-10-18

    申请人： John A. Doremus ,  William R. Kirkpatrick

    发明人： John A. Doremus ,  William R. Kirkpatrick

    IPC分类号： B64D15/12 ,  B64D15/16 ,  B64D15/22 ,  G01P5/00 ,  G01P5/16 ,  G01P13/02 ,  H05B3/14 ,  H05B3/02 ,  G01W1/10 ,  H01C7/02

    CPC分类号： G01P13/025 ,  B64D15/16 ,  B64D15/22 ,  G01P5/00 ,  G01P5/16

    摘要： A positive temperature coefficient (PTC) resistance heater assembly is used in combination with an angle of attack vane to provide automatic means for maintaining the temperature of the vane at a level which will de-ice the vane. The heater assembly is embedded in a recess in the vane and is made up of a plurality of individual PTC resistors connected electrically and mechanically in parallel by flexible electrically conductive perforated strips which permit the individual resistors to move relative to each the other under thermal stress and which also permit the encapsulation of the resistors in a suitable thermally conductive, electrically oinsulative material that is sufficiently resilient to permit the individual resistors to expand and contract relative to the vane during use.

    摘要翻译： 正温度系数（PTC）电阻加热器组件与攻角一起使用，以提供用于将叶片的温度维持在将使叶片除冰的水平的自动装置。 加热器组件嵌入在叶片中的凹槽中，并且由多个单独的PTC电阻器组成，多个单独的PTC电阻器通过柔性导电穿孔板电路和机械并联连接，允许各个电阻器在热应力下相对于彼此移动， 这也允许将电阻器封装在适当的导热，电绝缘材料中，其具有足够的弹性，以允许各个电阻器在使用期间相对于叶片膨胀和收缩。