公开(公告)号：US5131265A

公开(公告)日：1992-07-21

申请号：US658809

申请日：1991-02-22

申请人： James R. Tobin ,  Robert W. Pennisi ,  Frank Starsky

发明人： James R. Tobin ,  Robert W. Pennisi ,  Frank Starsky

IPC分类号： B29C45/76 ,  G01F1/28 ,  G01N11/10 ,  G01N33/44

CPC分类号： B29C45/7646 ,  G01F1/28 ,  G01N11/10 ,  G01N33/44

摘要： A sensor (18) for measuring the rheology of materials is provided, comprising a deformable beam (20) simply supported at two locations (21 and 22). The beam has supported and unsupported portions, with the unsupported portion (28) extending beyond the supported portion. A strain gauge (23) is attached to the supported portion of the deformable beam (20), and measures the induced strain on the beam when the unsupported portion (28) is deflected by a moving material.

摘要翻译： 提供了一种用于测量材料流变性的传感器（18），其包括简单地支撑在两个位置（21和22）处的可变形梁（20）。 梁具有支撑和未支撑的部分，其中未支撑部分（28）延伸超过被支撑部分。 应变仪（23）附接到可变形梁（20）的支撑部分，并且当未被支撑部分（28）被移动材料偏转时，测量梁上的感应应变。

公开(公告)号：US5120951A

公开(公告)日：1992-06-09

申请号：US564006

申请日：1990-08-07

申请人： James G. Small

发明人： James G. Small

IPC分类号： G01F1/00 ,  G01D5/26 ,  G01D5/34 ,  G01F1/28 ,  G01P9/00 ,  G01P13/04 ,  G01P15/093 ,  G01P15/18 ,  G02B6/00

CPC分类号： G01D5/268 ,  G01D5/34 ,  G01F1/28 ,  G01P15/093 ,  G01P9/00

摘要： A sensor includes a light source (24) and photosensor (28) which are disposed on opposite sides of a fluid flow passageway. A resilient member is fixedly supported at one end or edge and entrained in the fluid (14) for varying the amount of light incident on the photosensor (28) from the light source (24) as a function of the amount of deflection of the resilient member caused by motion of the fluid (14) in the passageway. The resilient member may be an optical fiber (18) which transmits light from the light source (24) toward the photosensor (28). Alternatively, the resilient member may be a curtain (62) which variably blocks propagation of light from the light source (24) to the photosensor (28). The passageway may be defined by a container (12) which is filled with the fluid (14), and the sensor constructed to sense rotational or linear motion of the container (12) relative to the fluid (14). In this case, the fluid resists movement due to stationary inertia, thereby causing relative deflection of the entrained resilient member. Alternatively, the passageway may be maintained stationary, and a fluid directed to flow therethrough which causes deflection of the resilient member and enables measurement of the rate of fluid flow through the passageway.

公开(公告)号：US5115684A

公开(公告)日：1992-05-26

申请号：US608538

申请日：1990-11-02

申请人： Hubert Haeussler

发明人： Hubert Haeussler

IPC分类号： G01F1/28 ,  G01F1/22 ,  G01F1/24 ,  G01F1/26

CPC分类号： G01F1/24 ,  G01F1/22 ,  G01F1/26

摘要： The flowmeter includes a piston that is biased by a spring to a neutral position within an encircling collar, and the piston is movable relative to the collar by and in the direction of the fluid flow to be measured. Movement of the piston relative to the collar increases the fluid flow through through one or more slots provided in one of such components. A Hall device senses movement of a magnet connected to the piston, and produces an output signal. A linear relationship between the output signal and the rate of flow of the fluid can be achieved by utilization of a magnetic member whose magnetic intensity or cross-sectional shape varies along its length, or by causing the magnet to move along a curve or other path of travel that varies its distance from the probe of the Hall device.

摘要翻译： 该流量计包括一个活塞，该活塞被一个弹簧偏压到一个环绕的轴环内的一个中立位置，并且该活塞可以相对于这个轴环移动并且在待测量的流体流动方向上。 活塞相对于套环的移动增加了流过一个或多个槽中的流体的流动，这些槽设置在这些部件之一中。 霍尔器件感测连接到活塞的磁体的运动，并产生输出信号。 输出信号与流体流量之间的线性关系可以通过利用其磁场强度或截面形状沿其长度变化的磁性部件，或通过使磁铁沿曲线或其它路径移动来实现 的行程，改变其距离霍尔设备的探头的距离。

公开(公告)号：US5036883A

公开(公告)日：1991-08-06

申请号：US416111

申请日：1989-10-03

申请人： George J. McHugh

发明人： George J. McHugh

IPC分类号： A62C35/68 ,  A62C37/50 ,  G01F1/28

CPC分类号： A62C35/68 ,  A62C37/50 ,  G01F1/28 ,  Y10T137/8326 ,  Y10T137/8359

摘要： A valve and an arrangement for testing and draining a fire suppression water sprinkler system includes a valve which has a valve member with first, second and third ports which are coplanar. The selective rotation of the valve member interrupts a flow of water through the valve and permits a flow at two different preselected flow rates.

摘要翻译： 用于测试和排放灭火喷水灭火系统的阀和排气装置包括具有阀构件的阀，该阀构件具有共面的第一，第二和第三端口。 阀构件的选择性旋转中断了水流过阀门，并允许以两种不同的预选流量流动。

公开(公告)号：US5003810A

公开(公告)日：1991-04-02

申请号：US237389

申请日：1988-08-26

申请人： Peter Jepson ,  Graham M. Tofield

发明人： Peter Jepson ,  Graham M. Tofield

IPC分类号： G01F1/28 ,  G01F1/32 ,  G01F1/86 ,  G01F5/00 ,  G01F7/00 ,  G01F25/00

CPC分类号： G01F1/86 ,  G01F1/28 ,  G01F1/3227 ,  G01F25/003 ,  G01F5/00 ,  G01F7/00

摘要： A fluid meter comprises at least three sensors each having an output dependent on a respective characteristic of the fluid to be monitored, circuitry to combine the outputs of two of the sensors to provide a measurement of mass flowrate of the fluid, and to combine the outputs of the three sensors to provide an error signal which can be used to recalibrate the measurement.

公开(公告)号：US4989456A

公开(公告)日：1991-02-05

申请号：US432041

申请日：1989-11-06

申请人： Josef Stupecky

发明人： Josef Stupecky

IPC分类号： G01F1/28 ,  A61B5/087 ,  G01F1/40 ,  G01F1/42

CPC分类号： G01F1/42 ,  A61B5/0876 ,  G01F1/40

摘要： A flow meter including a variable area obstruction which is mounted in a conduit. Inputs to a differential pressure transducer are positioned in the conduit on opposite sides of the obstruction to measure fluid pressure differential across the obstruction. In one embodiment, a sleeve is secured within the conduit thereof substantially separated from the conduit so as to prevent fluid condensation on the sleeve, and to create a dead end pocket between the conduit and the sleeve for collecting liquids from the conduit end preventing them from contacting the obstruction. The variable area obstruction comprises an elastic membrane that includes first, second and third leaves which extend into the flow stream and are compliant to fluid flow so that an increase in flow rate increases the deflection of the leaves and increases the through flow area through the obstruction. The first leaf is secured at a fixed end adjacent a first portion of the interior surface of the conduit and extends in a first direction to a free end preferably positioned adjacent a second portion of the interior surface of the conduit opposite the first portion. The second and third leaves are located adjacent opposite sides of the first leaf and extend from their fixed ends toward their free ends in directions which are generally opposite to the first direction.

摘要翻译： 一种流量计，其包括安装在导管中的可变区域阻塞物。 差压变送器的输入位于阻塞相对侧的管道中，以测量跨越障碍物的流体压力差。 在一个实施例中，套管固定在其导管内，其基本上与管道分离，以防止套筒上的流体冷凝，并且在导管和套管之间形成死端袋，用于从管道端收集液体， 接触阻塞。 可变区域障碍物包括弹性膜，其包括延伸到流动流中并符合流体流动的第一叶片，第二叶片和第三叶片，使得流速的增加增加叶片的偏转并且增加穿过障碍物的通过流动面积 。 第一叶片固定在邻近导管内表面的第一部分的固定端上，并沿第一方向延伸到自由端，优选地位于与第一部分相对的导管内表面的第二部分附近。 第二叶片和第三叶片位于第一叶片的相对侧附近并且从其固定端部朝向与第一方向大体相反的方向的自由端延伸。

公开(公告)号：US4947153A

公开(公告)日：1990-08-07

申请号：US400581

申请日：1989-08-29

申请人： Hermann Berger

发明人： Hermann Berger

IPC分类号： F04B49/06 ,  F04B49/10 ,  G01F1/28 ,  G01F1/52 ,  G01P13/00

CPC分类号： G01F1/52 ,  G01F1/28 ,  G01P13/002 ,  Y10T137/8158

摘要： The upwardly extending outlet of a pump contains a non-floating permanent magnet which tends to assume a lower end position but is propelled upwardly in response to admission of a metered quantity of liquid into the outlet to initiate the emission of a signal by a sensor. The emission of such signal persists as long as the actuator remains above its lower end position. The sensor is connected with the resetting input of a counter by way of an OR circuit. The n-th output of the counter transmits a signal to an alarm signal generating circuit in response to transmission of a certain number of consective timing pulses to its counting input prior to transmission of a signal to the resetting input. The timing pulses are transmitted by a generator which also transmits pulses to the pump to thus determine the frequency of admission of liquid into the outlet. A rectangular wave oscillator receives signals from the sensor and transmits a series of signals to the OR circuit with a delay which equals or approximates the length of the interval between two consecutive timing pulses. The oscillator starts to transmit signals to the OR circuit only if the signal which is emitted by the sensor persists during the aforementioned delay. This ensures that no alarm signal is generated if the viscosity of pumped liquid is so high that the actuator is incapable of returning to its lower end position during the interval between successive admissions of liquid into the outlet.

摘要翻译： 泵的向上延伸的出口包含非浮动永磁体，其倾向于呈现下端位置，但是响应于计量的液体进入出口而向上推动以启动由传感器发出的信号。 只要执行器保持在其下端位置上方，这种信号的发射仍然存在。 传感器通过OR电路与计数器的复位输入连接。 计数器的第n个输出在将信号发送到复位输入之前响应于将一定数量的连续定时脉冲发送到其计数输入而将信号发送到报警信号发生电路。 定时脉冲由发生器传输，发生器还向泵发送脉冲，从而确定液体进入出口的频率。 矩形波振荡器从传感器接收信号，并以等于或接近两个连续定时脉冲之间的间隔的长度的延迟将一系列信号发送到或电路。 只有在传感器发出的信号在上述延迟期间持续时，振荡器才开始向OR电路发送信号。 这确保了如果泵送液体的粘度如此高以致致动器在液体进入出口的间隔期间间隔期间不能返回到其下端位置，则不产生报警信号。

公开(公告)号：US4931776A

公开(公告)日：1990-06-05

申请号：US195988

申请日：1988-05-19

申请人： Leo V. Klos ,  Richard J. Hertel

发明人： Leo V. Klos ,  Richard J. Hertel

IPC分类号： G01F1/28 ,  G01P13/00 ,  H01H35/40

CPC分类号： G01F1/28 ,  G01P13/0026 ,  H01H35/40

摘要： A flow sensor for regulating the air flow rate to a cooling system can be formed as a housing for channeling the flow through a retangular cavity and a one piece vane of bent metal strip which deflects and closes an electrical contact at a predetermined air flow rate and opens when the air flow rate falls below a preset threshold level.

公开(公告)号：US4848926A

公开(公告)日：1989-07-18

申请号：US147328

申请日：1988-01-22

申请人： Maurice A. Jenkins

发明人： Maurice A. Jenkins

IPC分类号： G01F1/28 ,  G01K13/02

CPC分类号： G01F1/28 ,  G01K13/02

摘要： A combined fluid flow and temperature monitor composed of: a housing defining a fluid flow path having an inlet end and an outlet end, the housing having a support member; a flexible, elongated member having a first end secured to the support member and a second end located within the flow path, the elongated member having a portion adjacent the second end which is disposed in the flow path and which extends transverse to the direction of the fluid flow in the flow path, and the elongated member being positioned and oriented such that the second end experiences deflection relative to the first end in response to fluid flowing through the flow path and by an amount proportional to the rate of flow of fluid through the flow path; a deflection sensing device secured to the elongated member for producing an electrical signal indicative of the amount of deflection of the second end relative to the first end, the deflection sensing device having output conductors on which the electrical signal appears; a temperature sensing device mounted on the elongated member at a location which is exposed to fluid flowing through the flow path, the temperature sensing device having output conductors for providing an electrical signal indicative of the temperature of fluid flowing through the flow path; and a coupler extending through the housing in a fluid-tight manner for conducting the signals appearing on the conductors to a location outside the housing.

摘要翻译： 组合的流体流动和温度监测器，由以下部件组成：限定具有入口端和出口端的流体流动路径的壳体，所述壳体具有支撑构件; 柔性的细长构件，其具有固定到所述支撑构件的第一端和位于所述流动路径内的第二端，所述细长构件具有邻近所述第二端的部分，所述第二端设置在所述流动路径中并且横向于所述流动方向 流体流动在流动路径中，并且细长构件被定位和定向，使得第二端响应于流体流过流动路径而经历相对于第一端的偏转，并且通过与流过流动通道的流体的流速成比例的量 流路; 固定到所述细长构件的偏转感测装置，用于产生指示所述第二端相对于所述第一端的偏转量的电信号，所述偏转感测装置具有出现所述电信号的输出导体; 温度感测装置，其在暴露于流过流路的流体的位置处安装在细长构件上，温度感测装置具有用于提供指示流过流动路径的流体的温度的电信号的输出导体; 以及以流体密封的方式延伸穿过壳体的耦合器，用于将出现在导体上的信号传导到壳体外部的位置。

公开(公告)号：US4827092A

公开(公告)日：1989-05-02

申请号：US132884

申请日：1987-12-09

申请人： Klaus Kobold

发明人： Klaus Kobold

IPC分类号： G01F1/28 ,  G01P13/00 ,  H01H35/40

CPC分类号： G01P13/0033

摘要： A flow meter or monitor arranged on a conduit section through which a medium to be monitored flows includes an actuating element extending through an opening in a wall of the conduit section, with a flow pressure plate of the actuating element positioned in the flow path of the medium. The actuating element is mounted on a support plate and is deflectable against the force of a spring with a deflectable outer end projecting into a housing positioned outwardly of the opening in the conduit section. The housing may be detached from the conduit section. The end of the actuating element projecting into the housing is equipped with a permanent magnet to operate a reed contact switch to be in an electrical circuit when the actuating element is deflected. The switch is surrounded by a protective cover and is accommodated in a through-hole in the housing. The support plate can be detached and inserted into a recess of the housing and is prevented from rotation with respect to the housing.

摘要翻译： 布置在导管部分上的流量计或监视器，待监测的介质通过该流量计包括通过导管部分的壁中的开口延伸的致动元件，致动元件的流动压力板定位在 中。 致动元件安装在支撑板上并且可抵抗弹簧的力而偏转，其中可偏转的外端突出到位于导管部分中的开口外侧的壳体中。 外壳可以从导管部分脱离。 突出到壳体中的致动元件的端部配备有永磁体，以在致动元件偏转时将簧片接触开关操作为电路。 开关被保护盖包围，并被容纳在壳体中的通孔中。 支撑板可以拆卸并插入壳体的凹部中，并且防止其相对于壳体旋转。