公开(公告)号：US06260004B1

公开(公告)日：2001-07-10

申请号：US09002053

申请日：1997-12-31

申请人： Coy L. Hays ,  Thomas A. Brunson ,  Gary A. Lenz

发明人： Coy L. Hays ,  Thomas A. Brunson ,  Gary A. Lenz

IPC分类号： G01L326

CPC分类号： G05B23/0235

摘要： An apparatus and method for diagnosing rotating equipment commonly used in the factory and process control industry are provided. The apparatus and method are intended for use in assisting a maintenance engineer in the diagnosis of turbines, compressors, fans, blowers and pumps. The preferred embodiments are an apparatus and method for diagnosing pumps, with a focus on centrifugal pumps. The apparatus and method are based on the comparison of the current pump signature curves resulting from the acquisition of process variables from sensors monitoring the current condition of the pump and the original or previous pump performance curve from prior monitoring or knowledge of the pump geometry, installation effects and properties of the pumped process liquid. The diagnostic apparatus and method can be applied to any rotating machine, but the apparatus and method for pumps are described herein.

摘要翻译： 提供了一种用于诊断工厂和过程控制行业常用旋转设备的设备和方法。 该装置和方法旨在用于帮助维护工程师诊断涡轮机，压缩机，风扇，鼓风机和泵。 优选的实施例是用于诊断泵的装置和方法，其重点在于离心泵。 该装置和方法是基于从监测泵的当前状况的传感器获取的过程变量获得的当前泵特征曲线和来自先前监测的原始或先前的泵性能曲线或泵几何形状，安装的知识 泵送液体的效果和性能。 诊断装置和方法可以应用于任何旋转机器，但是这里描述了泵的装置和方法。

公开(公告)号：US06961624B2

公开(公告)日：2005-11-01

申请号：US10760793

申请日：2004-01-20

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： G05B15/00 ,  G05B19/05 ,  G06F1/16 ,  G06F1/18 ,  G06F3/05 ,  H05K5/00 ,  H05K7/00 ,  H05K7/14 ,  G05B11/01

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通信的环路通信器。

公开(公告)号：US06711446B2

公开(公告)日：2004-03-23

申请号：US10400148

申请日：2003-03-26

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.

公开(公告)号：US06701274B1

公开(公告)日：2004-03-02

申请号：US09384876

申请日：1999-08-27

申请人： Evren Eryurek ,  Gary A. Lenz ,  Kadir Kavaklioglu

发明人： Evren Eryurek ,  Gary A. Lenz ,  Kadir Kavaklioglu

IPC分类号： G01L1100

CPC分类号： G01L27/007 ,  G01D3/022 ,  G01D18/008 ,  G01L19/0092

摘要： A pressure transmitter with an output predicting the magnitude of error in the pressure transmitter's output. A pressure sensor is adapted to sense a process pressure. A controller coupled to the pressure sensor generates a transmitter output representing the process pressure. A memory stores predetermined data predicting magnitudes of transmitter output error as a function of cumulative excessive sensor output levels, and also stores a record of cumulative excessive sensor output levels. The controller calculates a predicted present magnitude of transmitter output error as a function of the accumulated record and the predetermined data, and generates the prediction output.

摘要翻译： 压力变送器，输出预测压力变送器输出的误差大小。 压力传感器适于感测过程压力。 耦合到压力传感器的控制器产生表示过程压力的变送器输出。 存储器存储预测发射机输出误差的大小作为累积过量传感器输出电平的函数的预定数据，并且还存储累积过量传感器输出电平的记录。 控制器根据累积记录和预定数据计算发射机输出误差的预测当前幅度，并产生预测输出。

公开(公告)号：US06412991B1

公开(公告)日：2002-07-02

申请号：US09309391

申请日：1999-05-10

申请人： Gary M. Klinefelter ,  Gary A. Lenz

发明人： Gary M. Klinefelter ,  Gary A. Lenz

IPC分类号： B41J3100

CPC分类号： B41J17/36 ,  B41J35/18

摘要： A ribbon for a thermal printer has a series of frames of different colors in a sequence that are correlated to the position of cards to be printed. The ribbon has indexing marks for each frame and also indicators for each repeating sequence of frames. The index marks are arranged in a line across the ribbon and the marks can be coded to individually indicate the color or other characteristic of the frame associated with the line of index mark. This information is received by a controller to control various printer functions.

摘要翻译： 用于热敏打印机的色带具有与要打印的卡的位置相关联的序列中的不同颜色的一系列帧。 色带具有每个帧的索引标记，以及每个重复的帧序列的指示符。 索引标记被布置成跨越色带的线，并且标记可被编码以分别指示与索引标记线相关联的框架的颜色或其他特性。 该信息由控制器接收以控制各种打印机功能。

公开(公告)号：US5960375A

公开(公告)日：1999-09-28

申请号：US866290

申请日：1997-05-30

申请人： Jogesh Warrior ,  Scott E. Brigham ,  Gary A. Lenz

发明人： Jogesh Warrior ,  Scott E. Brigham ,  Gary A. Lenz

IPC分类号： G01D3/028 ,  G01D3/02 ,  G01D3/036 ,  G01D18/00 ,  G01D5/00

CPC分类号： G01D3/0365 ,  G01D18/00 ,  G01D3/022 ,  Y10S706/90 ,  Y10S706/906

摘要： A circuit for compensating variables in a measurement transmitter. Within the transmitter, a sensor senses a primary process variable such as differential pressure and a converter digitizes the sensed process variable. The sensor senses pressures within a span of pressures values. A memory inside the transmitter stores at least two membership functions, each membership function having a non-zero value over a predetermined region of the process variable span and a substantially zero value over the remainder of the span. The memory also stores a set of compensation formulas, each formula corresponding to a membership function. A selection circuit in the transmitter selects those membership functions which have a non-zero value at the digitized process variable and a correction circuit provides at least one correction value, each correction value calculated from a compensation formula corresponding to a selected membership function. A weighting circuit multiplies each correction value by its corresponding selected membership function, and combines the multiplicands to provide a compensated process variable. The compensated process variable is coupled to a control circuit connecting the transmitter to a control system.

摘要翻译： 用于补偿测量变送器中变量的电路。 在变送器内，传感器感测主要过程变量，例如差压，转换器对感测到的过程变量进行数字化。 传感器感测压力范围内的压力值。 发射机内的存储器存储至少两个隶属函数，每个隶属函数在过程可变跨度的预定区域上具有非零值，并且在跨度的剩余部分上具有基本为零的值。 存储器还存储一组补偿公式，每个公式对应于隶属函数。 发射机中的选择电路选择在数字化处理变量处具有非零值的那些隶属函数，并且校正电路提供至少一个校正值，每个校正值根据与选定的隶属函数对应的补偿公式计算。 加权电路将每个校正值乘以其对应的选择的隶属函数，并且组合被乘数以提供经补偿的过程变量。 补偿过程变量耦合到将发射器连接到控制系统的控制电路。

公开(公告)号：US5642301A

公开(公告)日：1997-06-24

申请号：US186288

申请日：1994-01-25

申请人： Jogesh Warrior ,  Scott E. Brigham ,  Gary A. Lenz

发明人： Jogesh Warrior ,  Scott E. Brigham ,  Gary A. Lenz

IPC分类号： G01D3/028 ,  G01D3/02 ,  G01D3/036 ,  G01D18/00 ,  G01F1/08

CPC分类号： G01D3/0365 ,  G01D18/00 ,  G01D3/022 ,  Y10S706/90 ,  Y10S706/906

摘要： A circuit for compensating variables in a measurement transmitter. Within the transmitter, a sensor senses a primary process variable such as differential pressure and a converter digitizes the sensed process variable. The sensor senses pressures within a span of pressures values. A memory inside the transmitter stores at least two membership functions, each membership function having a non-zero value over a predetermined region of the process variable span and a substantially zero value over the remainder of the span. The memory also stores a set of compensation formulas, each formula corresponding to a membership function. A selection circuit in the transmitter selects those membership functions which have a non-zero value at the digitized process variable and a correction circuit provides at least one correction value, each correction value calculated from a compensation formula corresponding to a selected membership function. A weighting circuit multiplies each correction value by its corresponding selected membership function, and combines the multiplicands to provide a compensated process variable. The compensated process variable is coupled to a control circuit connecting the transmitter to a control system.

摘要翻译： 用于补偿测量变送器中变量的电路。 在变送器内，传感器感测主要过程变量，例如差压，转换器对感测到的过程变量进行数字化。 传感器感测压力范围内的压力值。 发射机内的存储器存储至少两个隶属函数，每个隶属函数在过程可变跨度的预定区域上具有非零值，并且在跨度的剩余部分上具有基本为零的值。 存储器还存储一组补偿公式，每个公式对应于隶属函数。 发射机中的选择电路选择在数字化处理变量处具有非零值的那些隶属函数，并且校正电路提供至少一个校正值，每个校正值根据与选定的隶属函数对应的补偿公式计算。 加权电路将每个校正值乘以其对应的选择的隶属函数，并且组合被乘数以提供经补偿的过程变量。 补偿过程变量耦合到将发射器连接到控制系统的控制电路。

公开(公告)号：US5549137A

公开(公告)日：1996-08-27

申请号：US112694

申请日：1993-08-25

申请人： Gary A. Lenz ,  Gregory C. Brown ,  Jogesh Warrior

发明人： Gary A. Lenz ,  Gregory C. Brown ,  Jogesh Warrior

IPC分类号： G05D3/12 ,  G05D7/00 ,  G05D7/06 ,  G05D16/20 ,  F16K31/126

CPC分类号： G05D7/005 ,  F16K31/1262 ,  F16K37/0083 ,  Y10T137/2452 ,  Y10T137/7759 ,  Y10T137/7761

摘要： In this invention, a valve positioner receives a setpoint from a master and provides a control pressure to a valve actuator for controlling a valve. A sensing circuit in the positioner senses the position of the valve and the control pressure, and a control circuit in the positioner uses both the sensed pressure and position to provide a command output to a pneumatic section which produces the control pressure. In another embodiment of the invention, a positioner receives a setpoint from a master and provides a control pressure to a valve actuator for controlling a valve. A sensing circuit in the positioner senses the valve position and pneumatics in the positioner provide the control pressure as a function of the sensed position and an output from a control circuit within the positioner. The positioner includes a diagnostic circuit which stores a valve attribute and provides a diagnostic output as a function of the stored valve characteristic and a selected one of the sensed variables. In another embodiment of the invention, a positioner includes a correction circuit for storing a valve attribute affected by one of a set of physical parameters and for receiving a selected one of the set of sensed physical parameters. The correction means compensates a command output from a control circuit as a function of the sensed physical parameter and the stored valve characteristic. In another embodiment, the positioner includes a benchset control circuit which ramps the control pressure between an initial control pressure and a final control pressure and back to the initial control pressure, while sampling specific control pressures and their corresponding positions, in order to provide an output indicating the proper spring preload force on an actuator spring.

公开(公告)号：US4487076A

公开(公告)日：1984-12-11

申请号：US436426

申请日：1982-10-25

申请人： Brian J. Burlage ,  David E. Wiklund ,  Gary A. Lenz

发明人： Brian J. Burlage ,  David E. Wiklund ,  Gary A. Lenz

IPC分类号： G01F1/32 ,  G01F15/00 ,  G01F15/14

CPC分类号： G01F1/3209

摘要： An improved flow meter and sensor body therefor, the body having a strain relief portion. A housing of the flow meter defines a fluid flow passage and a sensor body opening. A sensor body mounting portion is mounted to the housing. A sensor body sensor supporting portion is in the fluid flow passage, and supports flow sensor transducers in the fluid flow. The sensor body relief portion is intermediate the sensor body mounting and supporting portions, in the sensor body opening, and adapted to relieve induced strain from external vibration, whereby the flow meter is substantially insensitive to external vibration.

摘要翻译： 一种改进的流量计和其传感器本体，其具有应变消除部分。 流量计的壳体限定了流体流动通道和传感器体开口。 传感器主体安装部分安装到壳体。 传感器体传感器支撑部分在流体流动通道中，并且支撑流体流中的流量传感器换能器。 传感器体释放部分位于传感器主体开口中的传感器主体安装和支撑部分的中间，并且适于减轻来自外部振动的感应应变，由此流量计对外部振动基本上不敏感。

公开(公告)号：US07630855B2

公开(公告)日：2009-12-08

申请号：US11216381

申请日：2005-08-31

申请人： Gary A. Lenz ,  William C. Schuh ,  David P. Culbertson ,  Kenneth F. Fennewald ,  Louis P. Steinhauser ,  Leon J. McNutt

发明人： Gary A. Lenz ,  William C. Schuh ,  David P. Culbertson ,  Kenneth F. Fennewald ,  Louis P. Steinhauser ,  Leon J. McNutt

IPC分类号： G01K1/00

CPC分类号： G01K1/028 ,  G01K1/024 ,  G01K1/026 ,  G01K3/14 ,  G01K15/00 ,  G05B23/0254 ,  G05B2219/31211

摘要： A method of diagnosing a temperature sensing system having a temperature sensor, a field processing module coupled to the temperature sensor, a bitbus, a fieldbus, and an auxiliary processing module communicating with the bitbus and the fieldbus. The method includes generating a temperature characteristic at the temperature sensor, processing the temperature characteristic at the field processing module, and generating field operating data including a temperature diagnostic parameter as a function of the temperature characteristic. The method also includes communicating the field operating data including the temperature diagnostic parameter over the bitbus from the field processing module to the auxiliary processing module, generating at the auxiliary processing module auxiliary field data as a function of the received field operating data, and communicating the auxiliary field data over the fieldbus.

摘要翻译： 一种诊断具有温度传感器的温度感测系统的方法，耦合到温度传感器的现场处理模块，位总线，现场总线以及与位总线和现场总线通信的辅助处理模块。 该方法包括在温度传感器处产生温度特性，处理场处理模块的温度特性，以及产生包括作为温度特性的函数的温度诊断参数的场操作数据。 该方法还包括将来自现场处理模块的包括位线上的温度诊断参数的现场操作数据传送到辅助处理模块，在辅助处理模块处根据接收到的场操作数据生成辅助场数据， 现场总线上的辅助现场数据。