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公开(公告)号：US06973842B1
公开(公告)日：2005-12-13
申请号：US10946834
申请日：2004-09-22
申请人： Murray F. Feller
发明人： Murray F. Feller
摘要： An acoustic time-of-flight size measuring device is added to the sensing head of an insertion probe sensor which may be used for measuring the flow of fluid in a pipe. The size-measuring device defines an acoustic beam making a plurality of reflective contacts with the pipe's interior wall. A time-of-flight measurement of this path length provides an accurate measurement of the internal diameter of the pipe. The magnitude of the transit time signal can also be used as an indicator of both insertion depth and angular orientation of the probe with respect to the pipe axis. In addition, the arrangement allows one to sense acoustic path attenuation caused by factors such as the buildup of deposits.
摘要翻译： 将声学飞行时间尺寸测量装置添加到插入式探头传感器的感测头中，该传感头可用于测量管道中流体的流动。 尺寸测量装置限定了与管的内壁形成多个反射接触的声束。 该路径长度的飞行时间测量提供了管道内径的精确测量。 通过时间信号的大小也可以用作探针相对于管轴的插入深度和角度定向的指示。 此外，这种布置允许用于感测由诸如沉积物积累的因素引起的声路衰减。
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公开(公告)号：US06370963B1
公开(公告)日：2002-04-16
申请号：US09592313
申请日：2000-06-13
申请人： Murray F. Feller
发明人： Murray F. Feller
IPC分类号： G01F166
摘要： A transit time ultrasonic fluid flow sensor is configured to compensate for circuit related drifts in the flow rate output signal. During acoustic transmission some of the transmitting signal is also routed through the receiving circuits from which a reference signal is derived to provide the compensating signal. In an alternate configuration, compensation or flow sensor drift is derived from reception of the round-trip signals between a pair of transducers.
摘要翻译： 运输时间超声波流体流量传感器被配置为补偿流量输出信号中与电路相关的漂移。 在声传输期间，一些发射信号也通过接收电路进行路由，从该电路导出参考信号以提供补偿信号。 在替代配置中，补偿或流量传感器漂移是从一对换能器之间的往返信号的接收导出的。
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公开(公告)号：US6085599A
公开(公告)日：2000-07-11
申请号：US166349
申请日：1998-10-05
申请人： Murray F. Feller
发明人： Murray F. Feller
CPC分类号： G01F1/60
摘要： Sensors for measuring the flow rate of fluids flowing through or around a chamber. The chamber is formed using electrically insulating material through which there is an orthogonal alternating magnetic field provided by a mechanically repositioned permanent magnet and at least a pair of electrodes in line with and orthogonal to the magnetic field. This provides an electrical potential with a magnitude proportional to flow rate. The alternating magnetic field may also be provided by a stationary multiple electromagnet. Various embodiments are disclosed which make use of electromagnetics, stepper motors and other modifications for adapting the flow sensor to a wide variety of applications and environmental conditions.
摘要翻译： 用于测量流过或围绕室的流体的流量的传感器。 该腔室使用电绝缘材料形成，通过该电绝缘材料存在由机械重新定位的永磁体和至少一对与磁场正交并与之正交的电极提供的正交交变磁场。 这提供了具有与流量成比例的幅度的电势。 交变磁场也可以由固定的多个电磁体提供。 公开了各种实施例，其利用电磁学，步进电机和其它修改来使流量传感器适应各种应用和环境条件。
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公开(公告)号：US6023969A
公开(公告)日：2000-02-15
申请号：US6246
申请日：1998-01-13
申请人： Murray F. Feller
发明人： Murray F. Feller
CPC分类号： G01F1/6842 , G01F1/696 , G01F5/00
摘要： A sensor for measuring the flow rate of a fluid through a conduit. The fluid flow rate in the vicinity of a heated temperature sensor is made to cyclically vary from a minimum to a maximum to produce a cyclic signal indicative of the heat removed from the sensor by the fluid flow. The magnitude of the cyclic signal is representative of the mass flow rate of the fluid. A detection circuit responsive to the cyclic signal extrapolates therefrom the mass flow rate and provides an output signal related thereto. Mechanically and electrically balanced configurations enable high speed and high precision measurements to be obtained. Bypass and sampling embodiments are presented. In alternative preferred embodiments circuits are disclosed for determining and maintaining a constant average temperature difference between the sensors and the fluid being sensed, to thereby replace heat loss by the sensors as a result of contact with the fluid being sensed.
摘要翻译： 用于测量通过导管的流体流速的传感器。 加热温度传感器附近的流体流速从最小到最大循环地变化，以产生指示通过流体流从传感器去除的热量的循环信号。 循环信号的大小代表流体的质量流量。 响应于循环信号的检测电路从其中推出质量流量并提供与其相关的输出信号。 机械和电气平衡配置可实现高速度和高精度测量。 提供旁路和采样实施例。 在替代的优选实施例中，公开了用于确定和维持传感器和被感测流体之间恒定的平均温度差的电路，从而由于与被感测的流体的接触而代替传感器的热损失。
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公开(公告)号：US5948978A
公开(公告)日：1999-09-07
申请号：US114763
申请日：1998-07-14
申请人： Murray F. Feller
发明人： Murray F. Feller
CPC分类号： G01F1/6847 , G01F1/6842
摘要： Sensors for measuring the flow rate of a fluid and for monitoring heat transfer. An induction-heated temperature-responsive sensor in contact with and cooled by the fluid, changes temperature in proportion to the quantity of heat removed by the fluid thereby providing a basis for determining flow rate or heat transfer. A flow modulation method and apparatus for improving the precision of flow rate measurement is also presented.
摘要翻译： 用于测量流体流速和监测热传递的传感器。 与流体接触并被流体冷却的感应加热温度敏感传感器改变温度与由流体除去的热量成比例，从而为确定流速或热传递提供依据。 还提出了一种用于提高流量测量精度的流量调节方法和装置。
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公开(公告)号：US5691484A
公开(公告)日：1997-11-25
申请号：US681765
申请日：1996-07-29
申请人： Murray F. Feller
发明人： Murray F. Feller
IPC分类号： G01F1/58
摘要： Sensors for measuring the flow rate of fluids flowing through a chamber. The chamber is formed using electrically insulating material through which there is an orthogonal alternating magnetic field provided by a mechanically repositioned permanent magnet and at least a pair of electrodes in line with and orthogonal to the magnetic field. This provides an electrical potential with a magnitude proportional to flow rate. The alternating magnetic field may also be provided by a stationary multiple electromagnet. Various embodiments are disclosed which make use of electromagnetics, stepper motors and other modifications for adapting the flow sensor to a wide variety of applications and environmental conditions.
摘要翻译： 用于测量流过腔室的流体流量的传感器。 该腔室使用电绝缘材料形成，通过该电绝缘材料存在由机械重新定位的永磁体和至少一对与磁场正交并与之正交的电极提供的正交交变磁场。 这提供了具有与流量成比例的幅度的电势。 交变磁场也可以由固定的多个电磁体提供。 公开了各种实施例，其利用电磁学，步进电机和其它修改来使流量传感器适应各种应用和环境条件。
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公开(公告)号：US4996883A
公开(公告)日：1991-03-05
申请号：US409633
申请日：1989-09-19
申请人： Murray F. Feller
发明人： Murray F. Feller
IPC分类号： G01F1/05
CPC分类号： G01F1/056
摘要： An apparatus provides flow-representing signals in response to orbiting of a body which passes a sensor and moves along a circular orbit around the flow path, the orbiting body being supported by a spindle that slants relative to the axis of the flow path.
摘要翻译： 一种装置响应于通过传感器并沿着围绕流动路径的圆形轨道运动的身体的轨道运动提供流动代表信号，该轨道主体由相对于流动路径的轴线倾斜的心轴支撑。
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公开(公告)号：US4829833A
公开(公告)日：1989-05-16
申请号：US122471
申请日：1987-11-02
申请人： Murray F. Feller
发明人： Murray F. Feller
IPC分类号： G01F1/10
CPC分类号： G01F1/106
摘要： Flow monitors are disclosed for liquid like tap water having limited electrical conductivity, including a flow sensor and a circuit connected to electrodes in the flow sensor for producing flow-representing signals. Vanes of a flow-activated rotor made of insulation displace part of the pattern of current paths between the flow-sensor's electrodes. Circuits connected to the electrodes include a d-c or a-c excitation source and an impedance in series with the electrodes for providing amplitude-varying signal output. The steady-state excitation voltage at the electrodes is maintained constant despite diverse resistivities of various liquids, and the series impedance is much higher than the resistance between the electrodes. D-c excitation promotes economical utilization of a long-life circuit-energizing battery. With d-c excitation, the positive electrode is of platinum or other material that serves as an electro-chemically inert anode in the liquid.
摘要翻译： 公开了流动监测器，用于具有有限导电性的自来水的液体，包括流量传感器和连接到流量传感器中用于产生流动信号的电极的电路。 由绝缘体制成的流动活化转子的叶片取代了流量传感器电极之间的电流路径图案的一部分。 连接到电极的电路包括d-c或a-c激励源和与电极串联的阻抗，用于提供振幅变化的信号输出。 尽管各种液体的电阻率有所不同，电极处的稳态激励电压保持恒定，并且串联阻抗远高于电极之间的电阻。 D-c激发促进了长寿命电路充电电池的经济利用。 通过d-c激发，正极是铂或其它材料，在液体中用作电化学惰性阳极。
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公开(公告)号：US4616509A
公开(公告)日：1986-10-14
申请号：US691698
申请日：1985-01-15
申请人： Murray F. Feller
发明人： Murray F. Feller
CPC分类号： G01F1/056
摘要： The disclosed apparatus includes novel fluid-flow detectors wherein a ball orbits along a circular track inside a wall that bears external piston-mode piezoelectric transducer means, the wall being of either plastic or metal. In one form of orbital-ball flow detector, the linear range of flow-versus-orbiting frequency is extended to lower flow rates by providing an inner track of the ball on a bearing member that is rotatable by the orbiting ball. The range of flow rates is also extended for an axial-flow detector having an orbital ball or a turbine-type rotor as the fluid-activated element by providing multiple subdivision passages having valves that close at successively lower main-passage flow rates, the subdivision passages having flow detectors whose outputs are combined to provide output that represents flow in the main passage.
摘要翻译： 所公开的设备包括新颖的流体流量检测器，其中球沿着承载外部活塞模式压电换能器装置的壁内的圆形轨道轨道运动，该壁是塑料或金属。 在轨道球流量检测器的一种形式中，通过在可由轨道球旋转的轴承构件上提供球的内轨道将流量相对于轨道的频率的线性范围扩展到较低的流速。 对于具有轨道球或涡轮型转子的轴流检测器，通过提供具有以相继较低的主通道流速关闭的阀的多个细分通道，也扩展了流量范围，该细分 具有流量检测器的通道，其输出被组合以提供表示在主通道中流动的输出。
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公开(公告)号：US4462264A
公开(公告)日：1984-07-31
申请号：US388240
申请日：1982-06-14
申请人： Murray F. Feller
发明人： Murray F. Feller
摘要： Disclosed acoustic flow sensors include a cylindrical wall that forms a cylindrical flow passage, a flow activated rotor in the passage, and an electrical generator for developing flow-representing signals. In probe type flow sensors, the cylindrical wall is a shroud surrounding the rotor and forming a flow metering passage within a larger main passage, and the disclosed one or two piezoelectric device is/are decoupled from the fluid outside the shroud by sound-deadening material and coupled to the fluid within the shroud. For both probe-type flow sensors, and in-line flow sensors, the cylindrical wall is stressed and subjected to arcuate dimension change by piezoelectric device(s) of the radial-mode type bonded to the cylindrical wall.
摘要翻译： 公开的声流传感器包括形成圆柱形流动通道的圆柱形壁，通道中的流动活化转子和用于形成流动信号的发电机。 在探针型流量传感器中，圆柱形壁是围绕转子并且在更大的主通道内形成流量计量通道的护罩，并且所公开的一个或两个压电装置通过防声材料与护罩外部的流体分离 并联接到护罩内的流体。 对于两种探针式流量传感器和直列式流量传感器，圆柱形壁受到应力并经受与圆柱形壁结合的径向模式类型的压电装置的弓形尺寸变化。
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