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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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公开(公告)号：US4399696A
公开(公告)日：1983-08-23
申请号：US215524
申请日：1980-12-11
申请人： Murray F. Feller
发明人： Murray F. Feller
摘要： The disclosed flow sensors involve rotor-bearing probes proportioned for entry through a hole in a pipe. By omitting flow-straightening vanes, the rotors can be relatively large. Multiple rotors distributed across the flow passage, especially one or more pairs of oppositely rotating rotors, have respective rotation sensors whose outputs are combined for averaging out the varied effects of the flow on the rotors. The rotation sensors produce trains of pulses that are converted to narrow spikes before being combined.
摘要翻译： 所公开的流量传感器涉及成比例的用于进入管道中的孔的转子轴承探针。 通过省略流动整流叶片，转子可以相对较大。 分布在流动通道上的多个转子，特别是一对或多对相反旋转的转子，具有相应的旋转传感器，其输出被组合用于平均流动对转子的不同影响。 旋转传感器产生脉冲串，在组合之前转换成窄尖峰。
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公开(公告)号：US4535637A
公开(公告)日：1985-08-20
申请号：US578283
申请日：1984-02-08
申请人： Murray F. Feller
发明人： Murray F. Feller
摘要： The disclosed flow-detecting apparatus involves gating of phase-related excitation and sensed signals from electrodes close to a flow-activated tracker in a liquid passage. A high gain comparator provides peak-limited signals to the phase-comparison gate. In one form, a pair of excitation electrodes are symmetrical in relation to a single sensing electrode. That electrode supplies a sensed signal to one comparator input, the other comparator input having fixed bias. In another form, a pair of sensing electrodes are disposed in an excitation pattern between a localized excitation electrode and a metal pipe that forms the passage and acts as a second excitation electrode. The sensed signals reach respective input terminals of a high-gain comparator and it responds to the difference between the inputs. Other configurations of the electrodes and their excitation are disclosed, including one that promotes rejection of common-mode spurious signals. A comparator that receives flow-representing signals is stabilized against electrical unbalance by a negative feedback loop having a long time constant. In flow-detection apparatus having a multiple-rotor flow-sensing probe, separate flow-detection circuits are used for the respective rotors. The outputs of the flow-representing circuits are combined. Use of different excitation frequencies for those flow-detection circuits adds assurance of non-interfering operation of the flow-detection circuits.
摘要翻译： 所公开的流量检测装置包括从液体通道中靠近流动启动的跟踪器的电极门控相位激励和感测信号。 高增益比较器向相位比较门提供峰值限制信号。 在一种形式中，一对激励电极相对于单个感测电极是对称的。 该电极将感测到的信号提供给一个比较器输入，另一个比较器输入具有固定的偏置。 在另一种形式中，一对感测电极以局部激励电极和形成通道的金属管之间的激励图案设置，并用作第二激励电极。 感测到的信号到达高增益比较器的相应输入端，并响应输入之间的差异。 公开了电极的其他结构及其激励，包括促进共模寄生信号的抑制的结构。 接收流量表示信号的比较器通过具有长时间常数的负反馈回路而稳定而抵抗电不平衡。 在具有多转子流量检测探针的流量检测装置中，对于各个转子使用单独的流量检测电路。 流量表示电路的输出被组合。 对于这些流量检测电路使用不同的激发频率增加了流量检测电路的非干扰操作的保证。
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公开(公告)号：US4388003A
公开(公告)日：1983-06-14
申请号：US258521
申请日：1981-04-29
申请人： Murray F. Feller
发明人： Murray F. Feller
摘要： The disclosed apparatus includes a heat meter and a flow meter. The heat meter includes means for delivering trains of pulses to a heat register, the pulses per train being proportional to the temperature difference between fluid inlet and outlet passages of heat exchange means, and the recurrence rate of the pulse trains being determined by a flow sensor. A visual indicator of the pulse trains facilitates zero-difference adjustment of the temperature sensors when they are both at the same temperature. Compensation for variations in the specific heat of the fluid and temperature-related inaccuracy of the flow sensor is effected by non-linear frequency adjustment of an oscillator that generates the pulses. In a flow meter (omitting the temperature-difference circuit) compensation for temperature-related inaccuracy of flow-sensors is effected correspondingly.
摘要翻译： 所公开的装置包括热量计和流量计。 热量计包括用于将脉冲串传送到热量寄存器的装置，每列的脉冲与热交换装置的流体入口和出口通道之间的温度差成比例，并且由流量传感器确定的脉冲序列的复现速率 。 脉冲串的视觉指示器便于温度传感器在相同温度下的零差调整。 流体传感器的比热变化和温度相关不准确性的补偿通过产生脉冲的振荡器的非线性频率调整来实现。 在流量计（省略温差电路）中，相应地对流量传感器的温度相关不准确性进行补偿。
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公开(公告)号：US4618266A
公开(公告)日：1986-10-21
申请号：US501009
申请日：1983-06-03
申请人： Murray F. Feller
发明人： Murray F. Feller
IPC分类号： G01K17/06
CPC分类号： G01K17/06
摘要： Energy transmitted to a load in a fluid medium is measured utilizing a probe having an elongate heat transmitter that includes a sensing tip at one end, a heat exchanger at its opposite end, a thermal impedance forming at least a segment of the heat transmitter, and temperature sensors spaced apart along the impedance. The temperature of the sensing tip is maintained different from that of the sensed fluid. A read-out is responsive to the temperature sensors and it is calibrated in terms of the energy content of the fluid flowing in the sensed passage. Corrections for various factors of error are incorporated in the read-out. A relative simple yet reasonably accurate measure is made of the energy in steam, where the heat exchanger of the probe is a passive heat dissipator. By controlling the heat exchanger so as to maintain the sensing tip at the temperature of the fluid in a reference condition, measurement of the energy content of the fluid in another condition is made, this being applicable not only to steam systems but also to forced air heating and cooling systems as well as circulating liquid heating and cooling systems.
摘要翻译： 传输到流体介质中的负载的能量利用具有细长热传递器的探针来测量，所述探头具有细长的热传递器，其包括在一端的感测尖端，在其相对端的热交换器，形成热传递器的至少一部分的热阻抗，以及 温度传感器沿阻抗间隔开。 感测尖端的温度与感测流体的温度保持不同。 读出响应于温度传感器，并且根据在感测通道中流动的流体的能量含量进行校准。 读取中包含各种误差因素的修正。 一个相对简单但相当准确的测量方法就是蒸汽中的能量，其中探头的热交换器是被动散热器。 通过控制热交换器以将感测尖端保持在参考条件下的流体温度，进行另一条件下的流体的能量含量的测量，这不仅适用于蒸汽系统，而且也适用于强制空气 加热和冷却系统以及循环液体加热和冷却系统。
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公开(公告)号：US4403871A
公开(公告)日：1983-09-13
申请号：US421053
申请日：1982-09-22
申请人： Murray F. Feller
发明人： Murray F. Feller
摘要： The disclosed apparatus includes a heat meter and a flow meter. The heat meter includes means for delivering trains of pulses to a heat register, the pulses per train being proportional to the temperature difference between fluid inlet and outlet passages of heat exchange means, and the recurrence rate of the pulse trains being determined by a flow sensor. A visual indicator of the pulse trains facilitates zero-difference adjustment of the temperature sensors when they are both at the same temperature. Compensation for variations in the specific heat of the fluid and temperature-related inaccuracy of the flow sensor is effected by non-linear frequency adjustment of an oscillator that generates the pulses. In a flow meter (omitting the temperature-difference circuit) compensation for temperature-related inaccuracy of flow-sensors is effected correspondingly.
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公开(公告)号：US4304127A
公开(公告)日：1981-12-08
申请号：US53364
申请日：1979-06-29
申请人： Murray F. Feller
发明人： Murray F. Feller
IPC分类号： G01K17/10
CPC分类号： G01K17/10
摘要： Apparatus and a method are described for measuring heating and/or cooling of air or other fluid that occurs between an inlet and an outlet, one being a low-temperature passage and the other being a high-temperature passage. Heat is supplied to a temperature sensor in the low-temperature passages sufficient to raise that sensor to the temperature sensed in the high-temperature passage where the sensor of the low-temperature passage is cooled both by the fluid temperature and its mass-flow rate, and the supplied heat is measured.
摘要翻译： 描述了用于测量在入口和出口之间发生的空气或其它流体的加热和/或冷却的装置和方法，一个是低温通道，另一个是高温通道。 向低温通道中的温度传感器供应热量，足以将传感器升高到高温通道中感测到的温度，其中低温通道的传感器由流体温度和质量流量冷却 ，并测量供给的热量。
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公开(公告)号：US4275291A
公开(公告)日：1981-06-23
申请号：US935562
申请日：1978-08-21
申请人： Murray F. Feller
发明人： Murray F. Feller
CPC分类号： G01F1/115
摘要： The disclosed rotation sensors involve a first poled magnetic device that rotates with the part whose rotation is to be sensed, a second poled magnetic device coaxial with the first, magnetically induced to rotate in unison with the first magnetic device, and a sensing element disposed between the circular paths of the poles of the magnetic devices. In one form, the sensing element is a Hall-effect device. In a second form, the sensing element is a winding that provides both a rotation signal and electrical energization for local circuit equipment responsive to the signal.
摘要翻译： 所公开的旋转传感器包括与要旋转的部分一起旋转的第一极化磁性装置，与第一极性同轴的第二极化磁性装置，磁性地与第一磁性装置一起旋转，以及传感元件， 磁性装置的极点的圆形路径。 在一种形式中，感测元件是霍尔效应器件。 在第二种形式中，感测元件是响应于该信号而为本地电路设备提供旋转信号和电通电的绕组。
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公开(公告)号：US4581943A
公开(公告)日：1986-04-15
申请号：US677873
申请日：1984-12-04
申请人： Murray F. Feller
发明人： Murray F. Feller
CPC分类号： G01F1/056
摘要： The disclosed flow sensor includes a pipe segment forming a flow passage, having vanes that cause the entering liquid to spiral in passing through a flow-detection zone. An orbital ball is captive in the zone, orbiting in proportion to the flow velocity. A localized capacitive flow detector and a companion capacitive electrode sense the orbiting of the ball. The capacitive electrodes are coupled to the frequency-determining portion of a feedback-stabilized oscillator whose output is modulated each time the ball travels past the sensing electrode. A feedback-stabilized oscillator having a sensing coil is similarly modulated by the effect of a vaned rotor moving past the coil. Different forms of feedback having a long-time-constant maintain high sensitivity of the oscillator to the effect of the flow-activated device.
摘要翻译： 所公开的流量传感器包括形成流动通道的管段，其具有使进入的液体在通过流动检测区域时螺旋的叶片。 轨道球在该区域被捕获，与流速成比例地运动。 局部电容流量检测器和伴随电容电极感测球的轨道运动。 电容电极耦合到反馈稳定振荡器的频率确定部分，其反馈稳定振荡器的输出在每次行进通过感测电极时被调制。 具有感测线圈的反馈稳定振荡器通过运动经过线圈的无叶片转子的效果同样地调制。 具有长时间常数的不同形式的反馈保持了振荡器对流动激活装置的作用的高灵敏度。
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公开(公告)号：US4348906A
公开(公告)日：1982-09-14
申请号：US176904
申请日：1980-08-11
申请人： Murray F. Feller
发明人： Murray F. Feller
摘要： In the disclosed apparatus, flow of fluid in a pipe is sensed by directing acoustic signals at a fluid-metering rotor in the pipe. One or more transducers are used for emitting an acoustic signal and receiving acoustic reflections. A flow-representing signal is derived that varies with the attitude of the rotor in relation to the transducer(s).
摘要翻译： 在所公开的设备中，通过在管道中的流体计量转子处引导声学信号来感测管道中的流体的流动。 使用一个或多个换能器来发射声信号并接收声反射。 导出流动代表信号，随着转子相对于换能器的姿态而变化。
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