公开(公告)号：US09429588B2

公开(公告)日：2016-08-30

申请号：US13935933

申请日：2013-07-05

申请人： Lawrence B. Marsh

发明人： Lawrence B. Marsh

IPC分类号： G01P5/08 ,  G01F1/58 ,  G01F25/00

CPC分类号： G01P5/08 ,  G01F1/588 ,  G01F25/0007 ,  G01P5/083 ,  G01P5/086

摘要： An electromagnetic speedometer for a boat having hull containing an opening includes an electromagnetic coil supported by the hull for establishing an electromagnetic field in the water adjacent the hull opening. A plurality of electrodes are supported by an arrangement that both closes the hull opening and supports the electrodes in engagement with the water adjacent the hull opening. The electrodes are connected by conductors with a velocity measuring circuit arranged above the hull interior surface. Preferably, the electrode support arrangement includes guide tubes supporting the electrodes for removal relative to the boat hull, thereby to permit cleaning of the electrodes. The guide tubes are closed by valves when the electrodes are removed from the assembly. In one embodiment, the electromagnetic coil is of the end-fired type, and in another embodiment, the electromagnetic coil is annular and is arranged above and below the hull.

摘要翻译： 用于具有包含开口的船体的船的电磁速度计包括由船体支撑的电磁线圈，用于在与船体开口相邻的水中建立电磁场。 多个电极通过一种装置来支撑，两者都封闭船体开口并且支撑电极与邻近船体开口的水接合。 电极通过布置在船体内表面上方的速度测量电路的导体连接。 优选地，电极支撑装置包括支撑相对于船体的移除电极的引导管，从而允许清洁电极。 当电极从组件中取出时，导管由阀门关闭。 在一个实施例中，电磁线圈是终端式的，在另一个实施例中，电磁线圈是环形的，并且布置在船体的上方和下方。

公开(公告)号：US08434371B2

公开(公告)日：2013-05-07

申请号：US12905021

申请日：2010-10-14

申请人： Lawrence B. Marsh

发明人： Lawrence B. Marsh

IPC分类号： G01F1/58

CPC分类号： G01F1/002 ,  G01F1/588 ,  G01F1/60

摘要： An electromagnetic flowmeter includes at least one electromagnet coil arranged outside a liquid flow passage for generating an electromotive force in the liquid flow, and at least one pair of electrodes adjustably extending within the liquid flow for generating a velocity component signal. Preferably, two collinearly arranged coils are provided externally on opposite sides of the liquid flow passage, and a first set of two orthogonally-arranged pairs of coplanar electrodes are mounted on an adjustable probe strut that extends into the liquid flow. For greater accuracy, a Hall-effect device is provided on the probe. Additional sets of electrode pairs may be secured to the strut in planes parallel to the first electrode set. A second pair of collinear coils may be mounted externally of the liquid passage and orthogonally relative to the first coil pair, the two pairs of coils being alternately energized to produce three orthogonally arranged velocity components.

摘要翻译： 电磁流量计包括布置在液体流动通道外部的至少一个电磁线圈，用于在液体流中产生电动势，以及至少一对电极，其在液体流动内可调节地延伸以产生速度分量信号。 优选地，两个共线排列的线圈设置在液体流动通道的相对侧的外部，并且第一组两个正交布置的共面电极对安装在延伸到液体流中的可调节探针支柱上。 为了更高的精度，在探头上提供霍尔效应装置。 附加的电极对组可以在与第一电极组平行的平面中固定到支柱上。 第二对共线线圈可以安装在液体通道的外部并且相对于第一线圈对正交地安装，两对线圈交替地通电以产生三个正交布置的速度分量。

公开(公告)号：US4549434A

公开(公告)日：1985-10-29

申请号：US665004

申请日：1984-10-26

申请人： Lawrence B. Marsh

发明人： Lawrence B. Marsh

IPC分类号： G01F1/34 ,  G01F23/14 ,  G01F9/00

CPC分类号： G01F1/34 ,  G01F23/14

摘要： A pressure level sensor for mounting a pressure transducer in a fluid flow channel. The sensor is characterized by an elongated wedge-shaped configuration wherein the width of the convex front wall portion is less than that of the rear wall portion which in turn is less than the length of the sensor. The side wall portions of the sensor each have concave surfaces, the radius of curvature of which is a function of the length of the sensor. At least one side wall portion contains a horizontal pressure port for communication with the pressure transducer. The front, rear, and side wall portions are tapered and curved vertically inwardly and terminate at a top wall portion. When the sensor is arranged on the bottom of the channel with the front wall portion facing upstream relative to the fluid flow, the velocity vector of the fluid flow is perpendicular to the direction of extension of the opening, thereby to minimize flow velocity effects on the pressure transducer.

摘要翻译： 用于将压力传感器安装在流体流动通道中的压力水平传感​​器。 传感器的特征在于细长的楔形构造，其中凸形前壁部分的宽度小于后壁部分的宽度，后壁部分的宽度小于传感器的长度。 传感器的侧壁部分具有凹面，其曲率半径是传感器长度的函数。 至少一个侧壁部分包含用于与压力传感器连通的水平压力端口。 前壁，后壁和侧壁部分呈锥形并垂直向内弯曲并终止于顶壁部分。 当传感器布置在通道的底部，前壁部分相对于流体流动面向上游时，流体流动的速度矢量垂直于开口的延伸方向，从而最小化流速对 压力传感器。

公开(公告)号：US4232532A

公开(公告)日：1980-11-11

申请号：US52468

申请日：1979-06-27

申请人： Lawrence B. Marsh

发明人： Lawrence B. Marsh

IPC分类号： B65D81/38 ,  F25D3/08 ,  F25D31/00

CPC分类号： B65D81/3883 ,  F25D3/08 ,  F25D31/007 ,  F25D2303/081 ,  F25D2303/0841 ,  F25D2303/0843 ,  F25D2331/803 ,  F25D2331/809 ,  F25D2500/02 ,  F25D2600/04

摘要： A device for controlling the temperature of a bottle, jar or the like is disclosed, characterized in that the desired temperature of the bottle may be selected and maintained by mechanically adjusting the heat transfer surface area of the device. The device includes inner and outer containers arranged in concentrically spaced relation, each of the containers having a vertically arranged tubular wall portion open at its upper end. The inner container is formed from a heat conducting material, and a first fluid medium having a given initial temperature is arranged in the space between the inner and outer containers. The bottle is arranged within the inner container as is a heat energy transfer control device which controls the transfer of heat energy between the bottle and the first fluid medium through the inner container, thereby to control the temperature of the bottle.

摘要翻译： 公开了一种用于控制瓶子或瓶子等的温度的装置，其特征在于，可以通过机械调节装置的传热表面积来选择和维持瓶子的期望温度。 该装置包括以同心间隔的关系布置的内部和外部容器，每个容器具有在其上端开放的垂直布置的管状壁部分。 内容器由导热材料形成，并且具有给定初始温度的第一流体介质布置在内容器和外容器之间的空间中。 瓶子配置在内部容器中，也是通过内部容器控制瓶子和第一流体介质之间的热能传递的热能传递控制装置，从而控制瓶子的温度。

公开(公告)号：US20130317763A1

公开(公告)日：2013-11-28

申请号：US13478293

申请日：2012-05-23

申请人： David Alan Ashman ,  Timothy Alan Higgins ,  Lawrence B. Marsh

发明人： David Alan Ashman ,  Timothy Alan Higgins ,  Lawrence B. Marsh

IPC分类号： G06F19/00 ,  G01L7/18

CPC分类号： G01L7/14

摘要： One aspect provides a method including determining that an absolute pressure sensor is not submersed in a fluid; measuring an atmospheric pressure with the absolute pressure sensor to determine an offset pressure measurement; submersing the absolute pressure sensor in a fluid; and measuring pressure with the absolute pressure sensor; wherein a compensated pressure measurement of the fluid is determined. Other embodiments are disclosed.

摘要翻译： 一方面提供一种方法，包括确定绝对压力传感器不浸没在流体中; 用绝对压力传感器测量大气压力以确定偏移压力测量; 将绝对压力传感器浸没在流体中; 并用绝对压力传感器测量压力; 其中确定流体的补偿压力测量。 公开了其他实施例。

公开(公告)号：US20120090403A1

公开(公告)日：2012-04-19

申请号：US12905021

申请日：2010-10-14

申请人： Lawrence B. Marsh

发明人： Lawrence B. Marsh

IPC分类号： G01F1/58

CPC分类号： G01F1/002 ,  G01F1/588 ,  G01F1/60

摘要： An electromagnetic flowmeter includes at least one electromagnet coil arranged outside a liquid flow passage for generating an electromotive force in the liquid flow, and at least one pair of electrodes adjustably extending within the liquid flow for generating a velocity component signal. Preferably, two collinearly arranged coils are provided externally on opposite sides of the liquid flow passage, and a first set of two orthogonally-arranged pairs of coplanar electrodes are mounted on an adjustable probe strut that extends into the liquid flow. For greater accuracy, a Hall-effect device is provided on the probe. Additional sets of electrode pairs may be secured to the strut in planes parallel to the first electrode set. A second pair of collinear coils may be mounted externally of the liquid passage and orthogonally relative to the first coil pair, the two pairs of coils being alternately energized to produce three orthogonally arranged velocity components.

摘要翻译： 电磁流量计包括布置在液体流动通道外部的至少一个电磁线圈，用于在液体流中产生电动势，以及至少一对电极，其在液体流动内可调节地延伸以产生速度分量信号。 优选地，两个共线排列的线圈设置在液体流动通道的相对侧的外部，并且第一组两个正交布置的共面电极对安装在延伸到液体流中的可调节探针支柱上。 为了更高的精度，在探头上提供霍尔效应装置。 附加的电极对组可以在与第一电极组平行的平面中固定到支柱上。 第二对共线线圈可以安装在液体通道的外部并且相对于第一线圈对正交地安装，两对线圈交替地通电以产生三个正交布置的速度分量。

公开(公告)号：US5811688A

公开(公告)日：1998-09-22

申请号：US787094

申请日：1997-01-22

申请人： Lawrence B. Marsh ,  Donald B. Heckman

发明人： Lawrence B. Marsh ,  Donald B. Heckman

IPC分类号： E03F7/00 ,  G01F1/00 ,  G01F1/66 ,  G01F23/284 ,  G01F23/292 ,  G01F23/296 ,  G01P5/24

CPC分类号： G01F23/296 ,  E03F7/00 ,  G01F1/002 ,  G01F1/661 ,  G01F1/663 ,  G01F23/284 ,  G01F23/292 ,  G01P5/241

摘要： A flowmeter utilizing velocity at the surface of a fluid and lookdown level sensors is mounted within a manhole without requiring entry into the manhole by the installer. The velocity and level sensors generate first and second energy signal beams which are directed toward the same vicinity of the fluid surface which reflects the beams back to the sensors surface velocity signal representative of the velocity of scatters on the fluid surface is produced from the Doppler frequency shift between the directed and reflected first beam. This signal is modified to produce a mean velocity signal. A level signal is produced by determining the air space between the sensor and the fluid surface from the directed and reflected second beam and relating changes in the air space to changes in fluid level in accordance with the configuration of the pipe. Fluid flow can be calculated from the mean velocity and fluid level signals.

摘要翻译： 在流体和俯视液位传感器的表面利用速度的流量计安装在人孔内，而不需要安装者进入人孔。 速度和液位传感器产生指向流体表面相同附近的第一和第二能量信号束，其将光束反射回传感器表面速度信号，其代表流体表面上的散射速度由多普勒频率 定向和反射的第一光束之间的位移。 该信号被修改以产生平均速度信号。 通过从导向和反射的第二光束确定传感器和流体表面之间的空气空间并根据管道的构造将空气空间的变化与流体水平的变化相关联来产生电平信号。 流体流量可以从平均速度和液位信号计算。

公开(公告)号：US5263374A

公开(公告)日：1993-11-23

申请号：US825504

申请日：1992-01-24

申请人： Lawrence B. Marsh

发明人： Lawrence B. Marsh

IPC分类号： G01F1/00 ,  G01F1/58 ,  G01F1/60

CPC分类号： G01F1/588 ,  G01F1/002 ,  G01F1/60

摘要： An electromechanical flowmeter includes a coil arrangement located completely outside the fluid conduit for producing a magnetic field that extends concentrically about the longitudinal axis of the conduit, the portion of the field adjacent the inner periphery of the conduit being stronger than that adjacent the center of the conduit. First electrodes are mounted on the interior wall surface of the conduit within the magnetic field, and second electrodes are arranged at a location generally unaffected by the field. In the preferred embodiment, the second electrode is mounted on the interior wall surface outside the magnetic field in longitudinally-spaced relation relative to the first electrodes, whereby the provision of any flow-obstructing electrode within the conduit is completely avoided. In a non-preferred embodiment, the second electrode is mounted centrally with the conduit relative to the longitudinal axis thereof. The field is produced by a pair of magnetic field generators--such as toroidal windings or squirrel cage windings--arranged with their magnetic axes extending circumferentially in the same direction relative to the conduit.

摘要翻译： 一种机电式流量计包括一个完全位于流体管道外部的线圈装置，用于产生围绕导管的纵向轴线同心地延伸的磁场，邻近管道内周边的部分磁场比毗邻导管的中心的部分强 导管。 第一电极安装在磁场内的管道的内壁表面上，第二电极被布置在通常不受场的影响的位置。 在优选实施例中，第二电极相对于第一电极以纵向间隔的关系安装在磁场外部的内壁表面上，从而完全避免了在管道内设置任何阻流电极。 在非优选实施例中，第二电极相对于其纵向轴线与管道中心地安装。 该场由一对磁场发生器产生，例如环形绕组或鼠笼式绕组，其磁轴相对于导管在相同方向周向延伸。

公开(公告)号：US4688432A

公开(公告)日：1987-08-25

申请号：US833153

申请日：1986-02-27

申请人： Lawrence B. Marsh

发明人： Lawrence B. Marsh

IPC分类号： G01F1/58 ,  G01P5/08 ,  G01P11/00

CPC分类号： G01P11/00 ,  G01F1/58 ,  G01P5/086

摘要： A sensor for measuring the mean velocity of fluid flow in a conduit senses flow velocities at a number of locations across the interior of the conduit to yield an accurate mean flow signal. The sensor includes a tubular housing which extends across the interior of the conduit. An electromagnet is arranged in the housing and produces an electromagnetic field in the fluid, the axis of the field extending normal to the direction of fluid flow. A plurality of electrodes are arranged in spaced relation along the length of the housing and in diametrically opposed pairs on opposite sides of the housing. The lines which pass through each electrode pair are arranged perpendicular to the direction of fluid flow. The electrodes produce electrical signals in response to the flow of fluid through the field, with each signal being a function of the velocity of fluid flow adjacent each electrode. The signals are combined to produce the mean flow velocity output signal.

摘要翻译： 用于测量导管中流体流动的平均速度的传感器感测穿过导管内部的多个位置处的流速，以产生精确的平均流量信号。 传感器包括延伸穿过导管内部的管状壳体。 电磁铁布置在壳体中并在流体中产生电磁场，场的轴线垂直于流体流动的方向延伸。 多个电极沿着壳体的长度间隔开地布置并且在壳体的相对侧上以直径相对的对布置。 穿过每个电极对的线条垂直于流体流动的方向排列。 电极响应于通过场的流体的流动而产生电信号，每个信号是与每个电极相邻的流体流速的函数。 信号被组合以产生平均流速输出信号。

公开(公告)号：US4459858A

公开(公告)日：1984-07-17

申请号：US500086

申请日：1983-06-01

申请人： Lawrence B. Marsh

发明人： Lawrence B. Marsh

IPC分类号： G01F1/58

CPC分类号： G01F1/58

摘要： A flow meter for measuring the velocity of fluid flow in a conduit is disclosed, characterized in that an electromagnetic sensor probe is mounted within an opening contained in the conduit for generating electrical signals as a function of the velocity of fluid flow. The probe has a debris shedding head portion which protrudes into the interior of the conduit and includes an electromagnet for generating an electromagnetic field in the fluid, the axis of the field extending normal to the direction of fluid flow. The probe further includes a plurality of electrodes arranged beyond the poles of the electromagnet and adjacent the fluid for producing the electrical signals in response to the flow of fluid through the electromagnetic field. Signal processing apparatus is connected with the sensor probe for converting the electrical signals into a flow velocity output signal.

摘要翻译： 公开了一种用于测量导管中的流体流速的流量计，其特征在于，电磁传感器探头安装在包含在导管中的开口内，用于产生作为流体流动速度的函数的电信号。 探针具有突出到管道内部的碎屑脱落头部，并且包括用于在流体中产生电磁场的电磁体，该场的轴线垂直于流体流动方向延伸。 探头还包括多个电极，其布置在电磁体的极之外并且邻近流体，以响应于通过电磁场的流体流而产生电信号。 信号处理装置与传感器探头连接，用于将电信号转换为流速输出信号。