公开(公告)号：US06311568B1

公开(公告)日：2001-11-06

申请号：US09394728

申请日：1999-09-13

申请人： Lowell Kleven

发明人： Lowell Kleven

IPC分类号： G01F134

CPC分类号： G01F1/42

摘要： A flow device including a differential flow plate insertable into a flow path between pipe sections including a flow conduit supporting a flow interrupter and differential pressure taps. The flow conduit including a seamless interface between the flow interrupter and the pressure taps to reduce non-attributable pressure loss between differential pressure taps as well as reduce field installation labor including that of pressure testing the various pressure couplings.

摘要翻译： 一种流动装置，包括可插入到包括支撑流动断流器的流动管道和差压抽头之间的管段之间的流动路径中的差动流动板。 流动导管包括流动断路器和压力抽头之间的无缝界面，以减少差压抽头之间的不可归因的压力损失，以及减少现场安装工作，包括对各种压力联接器进行压力测试的现场安装工作。

公开(公告)号：US06705173B1

公开(公告)日：2004-03-16

申请号：US09946241

申请日：2001-09-05

申请人： Michael D. Elberson

发明人： Michael D. Elberson

IPC分类号： G01F134

CPC分类号： G01F1/386

摘要： An air flow rate meter and method for monitoring the flow of air in high-pressure compressed air system includes a low pressure gauge contained within a sealed, high pressure vessel that is connected to the high pressure compressed air line. The low pressure gauge is pneumatically connected to opposite ends of a tube disposed within the meter through which the main air pressure line flows in order to detect the pressure drop across the restricted orifice defined by the tube. The measured pressure drop is then used by the gauge to determined the rate of air flowing through the line. To avoid damage to the meter, the air flow rate meter further includes a pressure regulating valve for regulating the input air flow pressure during startup of the system, and a check valve for closing the flow path through the pressure vessel during shut down.

摘要翻译： 用于监测高压压缩空气系统中的空气流量的空气流量计和方法包括一个低压计，其包含在连接到高压压缩空气管路的密封的高压容器内。 低压计被气动地连接到设置在仪表内的管的相对端，主气压管线通过该管流动，以便检测由管限定的限制孔上的压降。 测量的压降然后由量规使用以确定流过管线的空气的速率。 为了避免对仪表的损坏，空气流量计还包括用于调节系统启动期间的输入空气流量压力的压力调节阀和用于在关闭期间关闭通过压力容器的流动通道的止回阀。

公开(公告)号：US06253624B1

公开(公告)日：2001-07-03

申请号：US09006451

申请日：1998-01-13

申请人： David A. Broden ,  David E. Wiklund

发明人： David A. Broden ,  David E. Wiklund

IPC分类号： G01F134

CPC分类号： G01F1/34 ,  G01F1/50

摘要： A pressure transmitter produces signals indicative of a flow in a pipe. The transmitter has a pressure sensor that is fluidly coupled to two ports in the pipe, and the pipe has a substantially constant cross-section between the two ports. Aspects of the invention include a circuit coupled to the pressure sensor that produces a digital value related to the fluid flow as a function of the pressure difference between the two ports.

摘要翻译： 压力变送器产生指示管道中的流动的信号。 变送器具有流体耦合到管道中的两个端口的压力传感器，并且管道在两个端口之间具有基本恒定的横截面。 本发明的方面包括耦合到压力传感器的电路，其产生与流体流动相关的数字值作为两个端口之间的压力差的函数。

公开(公告)号：US06817252B2

公开(公告)日：2004-11-16

申请号：US10317981

申请日：2002-12-12

申请人： David E. Wiklund ,  Terrance F. Krouth ,  Richard J. Habegger ,  Richard R. Hineman

发明人： David E. Wiklund ,  Terrance F. Krouth ,  Richard J. Habegger ,  Richard R. Hineman

IPC分类号： G01F134

CPC分类号： F15B15/2838 ,  G01F1/36

摘要： A measuring device is provided for determining a position of a piston contained within a hydraulic actuator as a function of a hydraulic fluid flow. The measuring device includes a bi-directional flow sensor positioned inline with the hydraulic fluid flow and a piston position module. The flow sensor is configured to produce a flow rate signal that is indicative flow rate of the hydraulic fluid flow into and out of a first cavity. The piston position module is configured to receive the flow rate signal from the flow sensor and produce a piston position signal that is indicative of the position of the piston within the hydraulic actuator as a function of the flow rate signal.

摘要翻译： 提供了一种测量装置，用于根据液压流体流动来确定包含在液压致动器内的活塞的位置。 测量装置包括与液压流体流动定位成一体的双向流量传感器和活塞位置模块。 流量传感器被配置为产生流量信号，该流量信号指示液压流体流入和流出第一腔的流量。 活塞位置模块被配置为从流量传感器接收流量信号，并且产生表示作为流量信号的函数的液压致动器内的活塞位置的活塞位置信号。

公开(公告)号：US06643610B1

公开(公告)日：2003-11-04

申请号：US09405196

申请日：1999-09-24

申请人： Lowell A. Kleven ,  Ahmed H. Tewfik

发明人： Lowell A. Kleven ,  Ahmed H. Tewfik

IPC分类号： G01F134

CPC分类号： G01F1/42 ,  G01F25/0007 ,  G05B19/0423 ,  G05B2219/31126 ,  G05B2219/34084 ,  G05B2219/34142 ,  G05B2219/37401

摘要： A transmitter for measuring a process variable includes a sensor configured to couple to a process and having a sensor output related to the process variable. A microprocessor coupled to the sensor output provides a process variable output which is a function of an orthogonal-polynomial of the sensor output. A transmitter output is configured to provide an output related to the process variable.

摘要翻译： 用于测量过程变量的发射器包括被配置为耦合到过程并具有与过程变量相关的传感器输出的传感器。 耦合到传感器输出的微处理器提供过程变量输出，其是传感器输出的正交多项式的函数。 发射器输出被配置为提供与过程变量相关的输出。

公开(公告)号：US06536291B1

公开(公告)日：2003-03-25

申请号：US09345827

申请日：1999-07-02

申请人： Daniel L. Gysling ,  Rebecca S. McGuinn ,  Charles R. Winston

发明人： Daniel L. Gysling ,  Rebecca S. McGuinn ,  Charles R. Winston

IPC分类号： G01F134

CPC分类号： G01F1/7086 ,  G01F1/34 ,  G01F1/704

摘要： A fiber optic strain gauge based flow rate measurement system includes two measurement regions located an average axial distance &Dgr;X apart along the pipe, the first measurement region having two fiber optic strain gauges located a distance X1 apart, and the second measurement region having two other fiber optic strain gauges located a distance X2 apart, each capable of measuring the unsteady pressure in the pipe 12. Signals from each pair of fiber optic strain gauges are differenced by summers to form spatial wavelength filters. Each spatial filter filters out acoustic pressure disturbances Pacoustic and other long wavelength pressure disturbances in the pipe and passes short-wavelength low-frequency vortical pressure disturbances Pvortical associated with the vortical flow field. The spatial filters provide signals to band pass filters that filter out high frequency signals. The Pvortical-dominated filtered signals from the two sensing regions are cross-correlated to determine a time delay &tgr; between the two sensing locations which is divided into the distance &Dgr;X to obtain a convection velocity Uc(t) that is related to an average flow rate of the fluid (i.e., one or more liquids and/or gases) flowing in the pipe 12. The invention may also be configured detect the velocity of any desired inhomogeneous pressure field in the flow.

摘要翻译： 基于光纤应变计的流量测量系统包括沿着管道分开的平均轴向距离DELTAX的两个测量区域，第一测量区域具有位于距离X1的两个光纤应变计，并且第二测量区域具有两个另外的光纤 光学应变计位于距离X2的距离处，每个能量测量管12中的不稳定压力。来自每对光纤应变仪的信号由夏天差分以形成空间波长滤波器。 每个空间滤波器滤除声压干扰管道中的声波和其他长波长压力干扰，并通过短波长低频涡旋压力扰动与涡旋流场相关的涡流。 空间滤波器为滤除高频信号的带通滤波器提供信号。 来自两个感测区域的以波特率为主的滤波信号是相互关联的，以确定两个感测位置之间的时间延迟τ，其被分成距离DELTAX以获得与平均流量相关的对流速度Uc（t） 流体（即，一个或多个液体和/或气体）在管道12中流动。本发明还可以被配置为检测流中任何期望的不均匀压力场的速度。

公开(公告)号：US06182019B2

公开(公告)日：2001-01-30

申请号：US08879396

申请日：1997-06-20

申请人： David E. Wiklund

发明人： David E. Wiklund

IPC分类号： G01F134

CPC分类号： G01F1/50 ,  G01F1/363 ,  G01F1/88 ,  G01F15/024 ,  G01F15/063

摘要： A transmitter provides an output signal indicative of mass flow rate of fluid through a conduit. The transmitter includes a temperature sensor providing a temperature signal indicative of fluid temperature. A static pressure sensor provides a static pressure signal indicative of static pressure in the conduit. A differential producer provides a differential pressure signal. The transmitter also includes a controller which provides the output signal indicative of mass flow of the fluid through the conduit.

摘要翻译： 发射机提供指示流体通过导管的质量流率的输出信号。 发射器包括提供指示流体温度的温度信号的温度传感器。 静压传感器提供指示管道中静压的静压信号。 差分制造商提供差压信号。 发射机还包括控制器，其提供指示流体通过导管的质量流量的输出信号。

公开(公告)号：US06829542B1

公开(公告)日：2004-12-07

申请号：US09584570

申请日：2000-05-31

申请人： Steven M. Reynolds ,  Raymond J. Niemczura, Sr. ,  David E. Roseberry ,  Michael D. Hennessey

发明人： Steven M. Reynolds ,  Raymond J. Niemczura, Sr. ,  David E. Roseberry ,  Michael D. Hennessey

IPC分类号： G01F134

CPC分类号： F04B51/00 ,  F04B43/0081 ,  F04B43/009 ,  F04B49/06

摘要： A method of facilitating the maintenance of a pump and for facilitating changes in the operation of a pump is provided. The method includes the steps of providing a pump including wear parts, a processor and a memory; sensing at least one operating condition of the pump indicative of the operation of the pump; generating pump operational data reflective of the sensed operating condition; storing the generated operational data in the memory of the processor; storing parts identification data identifying wear parts of the pump in the memory; storing at least one predetermined level of operational information; and operating the processor to compare the stored predetermined level to the stored operational data and in dependent response thereto outputting information as to the desirability of replacing or repairing at least one selected wear part or modifying the operation of the pump. An improved pump with numerous sensors for sensing operational data relative to the wear and tear of various parts of the pump and the operating parameters of the pump which are linked to a processor mounted at the pump and which, in turn, is linked to a main computer is also disclosed.

摘要翻译： 提供了一种便于维护泵并促进泵的操作变化的方法。 该方法包括提供包括磨损部件，处理器和存储器的泵的步骤; 感测泵的至少一个操作状态，指示泵的操作; 产生反映感测操作条件的泵操作数据; 将所生成的操作数据存储在处理器的存储器中; 将识别所述泵的磨损部分的部件识别数据存储在所述存储器中; 存储至少一个预定级别的操作信息; 以及操作所述处理器以将存储的预定水平与所存储的操作数据进行比较，并且在依赖的响应中输出关于替换或修复至少一个选定的耐磨部件或修改泵的操作的可取性的信息。 一种改进的泵，具有许多传感器，用于感测相对于泵的各个部件的磨损和撕裂的操作数据，以及连接到安装在泵上的处理器的泵的操作参数，而这又连接到主体 计算机也被披露。

公开(公告)号：US06622577B1

公开(公告)日：2003-09-23

申请号：US09166415

申请日：1998-10-05

申请人： Mehmet H. Uras

发明人： Mehmet H. Uras

IPC分类号： G01F134

CPC分类号： G01L5/0052 ,  G01L1/125 ,  G01L1/127

摘要： Single coil magnetostrictive force or strain sensors. The single coil sensors have one electrical coil to both excite the magnetrostrictive circuit and detect changes in the permeability of the circuit arising from forces applied to the circuit or induced to strain a portion of the circuit, The sensor may be instructed to sense either or both compressive or tensile forces applied to the magnetostrictive circuit. Thin foils or plating applied to non-magnetically permeable materials may comprise part or all of the magnetostrictive circuit to provide an exceptionally inexpensive and light weight structure for the sensor. A permanent magnet may be incorporated into the structure to provide a sensor capable of measuring dynamic force, especially those of impact, explosion and relatively high frequency.

摘要翻译： 单线圈磁致伸缩力或应变传感器。 单个线圈传感器具有一个电线圈，以激励磁致伸缩电路，并检测由于施加到电路上的力引起的电路的磁导率变化，或者感应到使电路的一部分变形。传感器可被指示感测任一或两者 施加到磁致伸缩电路的压缩或拉力。 施加到非磁性可渗透材料上的薄箔或电镀可以包括部分或全部磁致伸缩电路，以为传感器提供非常便宜且重量轻的结构。 永磁体可以结合到结构中以提供能够测量动态力的传感器，特别是冲击，爆炸和相对高频率的传感器。

公开(公告)号：US06622573B2

公开(公告)日：2003-09-23

申请号：US10005460

申请日：2001-11-02

申请人： Lowell Kleven

发明人： Lowell Kleven

IPC分类号： G01F134

CPC分类号： G01F1/42

摘要： A flow device including a differential flow plate insertable into a flow path between pipe sections including a flow conduit supporting a flow interrupter and differential pressure taps. The flow conduit including a seamless interface between the flow interrupter and the pressure taps to reduce non-attributable pressure loss between differential pressure taps as well as reduce field installation labor including that of pressure testing the various pressure couplings.