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公开(公告)号：US4193291A
公开(公告)日：1980-03-18
申请号：US881753
申请日：1978-02-27
摘要： An ultrasonic densitometer for measuring the density or a density related parameter of a fluid has at least one transducer assembly that transmits and receives torsional waves guided in an axially extending sensor that is at least partially immersed in the fluid. The sensor has a noncircular cross section, typically rectangular, with dimensions, aspect ratio, frequency and bandwidth selected to limit dispersion. This non-circularity creates an inverse and substantially linear relation between the density of the fluid and the velocity of the torsional wave in the sensor. To meet special requirements, the sensor can take a variety of forms including axially curved, axially profiled, segmented or longitudinally composite. This densitometer, alone or in combination with conventional auxiliary ultrasonic measuring systems, can measure fluid density, density profiles, liquid level, viscosity, mass flow rate, gas pressure, and boiling or condensation, including measurements of flowing fluids in small conduits.
摘要翻译： 用于测量流体的密度或密度相关参数的超声波密度计具有至少一个传感器组件，其传递和接收在至少部分地浸入流体中的轴向延伸的传感器中引导的扭转波。 该传感器具有通常为矩形的非圆形横截面，其尺寸，纵横比，频率和带宽被选择以限制分散。 该非圆形度在流体的密度和传感器中的扭转波的速度之间产生反向且基本上线性的关系。 为了满足特殊要求，传感器可以采取各种形式，包括轴向弯曲，轴向剖面，分段或纵向复合。 该密度计单独或与常规辅助超声波测量系统组合可以测量流体密度，密度分布，液位，粘度，质量流量，气体压力和沸腾或冷凝，包括小管道中流动流体的测量。
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公开(公告)号：US4024759A
公开(公告)日：1977-05-24
申请号：US647152
申请日：1976-01-07
申请人： Helmut Klinger , Wolfram Glauert
发明人： Helmut Klinger , Wolfram Glauert
CPC分类号： G01F1/20
摘要： An apparatus for measuring the flow rate of a gaseous or liquid medium includes a baffle member which is poised in the stream on an elastic holder and permitted to execute inherent periodic motions. The flowing medium exerts a damping action on the moving element and the energy lost to the medium is related to the flow rate. The inherent velocity of the baffle is sensed by an inductive velocity sensor and the resulting signal is used to alter the current through a coil which produces an accelerating magnetic field that acts on conductors rigidly attached to the baffle. Thus, the energy required to maintain the inherent motions of the baffle is known and the flow rate may be inferred.
摘要翻译： 用于测量气体或液体介质的流速的装置包括挡板构件，该挡板构件在弹性保持器上的流中准备并允许执行固有的周期性运动。 流动介质对移动元件施加阻尼作用，并且损失到介质的能量与流速相关。 挡板的固有速度由感应速度传感器感测，并且所得到的信号用于改变通过线圈的电流，其产生作用于刚性地连接到挡板的导体上的加速磁场。 因此，维持挡板的固有运动所需的能量是已知的，并且可以推断流量。
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公开(公告)号：US4015474A
公开(公告)日：1977-04-05
申请号：US621531
申请日：1975-10-10
申请人： David E. Hoppe
发明人： David E. Hoppe
CPC分类号： G01F1/20
摘要： Improved dynamic balance of the ring-shaped rotor used in conjunction with a vortex chamber in the bearingless type of flowmeter is obtained by symmetrically spacing at least nine jets circumferentially around the vortex chamber. Additional stabilization is provided for the rotor by employing a plurality of exhaust ports for the vortex chamber radially displaced from the chamber center and disposed equidistant from the center and one another.
摘要翻译： 通过对称地间隔围绕涡流室周向的至少九个射流来获得与无轴承式流量计中的涡流室结合使用的环形转子的改进的动平衡。 通过采用用于涡流室的多个排气口，对于转子提供额外的稳定性，所述涡流室从室中心径向偏移并且相对于中心彼此等距设置。
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公开(公告)号：US3946726A
公开(公告)日：1976-03-30
申请号：US495329
申请日：1974-08-07
申请人： Richard E. Pikul
发明人： Richard E. Pikul
CPC分类号： A61B5/0876 , G01F1/20
摘要： In a pulmonary diagnostic instrument that includes a breath transducer for use in conjunction with the instrumentation for detecting respiratory functioning of a patient or specimen, the transducer comprises a flow tube in which is suspended for lineal displacement a partial diaphragm generally constructed as a foraminous plate, and which during testing, the specimen's breath flows therethrough to achieve some degree of displacement of said diaphragm. The diaphragm incorporates and operates in association with various ferrous rings for enhancing the transfer of magnetic lines of flux which are generated by a charged E-core for determining the extent of said lineal displacement which is representative of and can be interpreted to provide information pertaining to pulmonary functioning for diagnosis of the respiratory system of the specimen. In another embodiment charged capacitive plates replace the aforesaid ferrous rings and E-core, and through a developed capacitive imbalance caused by the breath induced diaphragm displacement providing information that may be interpretive of pulmonary functioning, or flow of air.
摘要翻译： 在包括与用于检测患者或样本的呼吸功能的仪器结合使用的呼吸换能器的肺部诊断仪器中，换能器包括流管，其中悬挂用于线性移位的通常构造为多孔板的部分隔膜， 并且在测试期间，样本的呼吸流过其中以实现所述隔膜的一定程度的位移。 隔膜结合并与各种铁环一起操作，用于增强由带电的E型芯产生的磁通线的转移，用于确定所述线性位移的程度，其代表并且可以解释为提供关于 肺功能用于诊断样本的呼吸系统。 在另一个实施例中，充电的电容板代替上述铁环和E型芯，并且通过由呼吸诱导的隔膜位移引起的开发的电容性不平衡，提供可能解释肺功能或空气流动的信息。
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15.发明授权Method and apparatus for measuring the flow rate of fluids such as gases or liquids 失效用于测量流体的流量的方法和装置，例如气体或液体
公开(公告)号：US3824855A
公开(公告)日：1974-07-23
申请号：US21775472
申请日：1972-01-14
申请人： HECKLE M
发明人： HECKLE M
摘要： This invention relates to a method and apparatus for measuring the flow rates of liquids or gases. The method essentially comprises the steps of directing the fluid past an element which can oscillate transversely of the fluid flow, said element being normally biassed into the fluid flow, and measuring the oscillation frequency of said element to give the flow rate of the fluid. One form of apparatus for use in carrying out the method of the invention comprises a chamber through which the fluid can flow, a duct leading into said chamber for introducing the fluid into the chamber, an oscillatory element having at least a portion disposed in said chamber and being movable by the fluid flow transversely thereof about an axis offset with respect to the fluid flow. The fluid flow can be split into two or more separate flow paths. If this is done the apparatus comprises a collecting chamber through which the fluid can flow, a fluid inflow chamber to divide the fluid flow into at least two separate flow paths, conduits leading from said inflow chamber to said collecting chamber, each of said conduits having an outlet aperture in said collecting chamber, an oscillatory element mounted in said collecting chamber for movement transversely with respect to the fluid flow paths, and said element having portions which are acted on by the flow paths to cause the element to oscillate.
摘要翻译： 本发明涉及一种用于测量液体或气体流量的方法和装置。 该方法基本上包括以下步骤：将流体引导通过能够横向于流体流动振荡的元件，所述元件通常被偏压到流体流中，并且测量所述元件的振荡频率以给出流体的流速。 用于实施本发明的方法的一种形式的装置包括流体可以流过的室，通向所述室的导管，用于将流体引入室中的振荡元件，其具有设置在所述室中的至少一部分 并且可以通过其横向流动的流体绕相对于流体流动偏移的轴线移动。 流体流动可以分成两个或更多个独立的流动路径。 如果这样做，装置包括流体可以流过的收集室，流体流入室，以将流体流分成至少两个分离的流动路径，从所述流入室引导到所述收集室的导管，每个所述导管具有 所述收集室中的出口孔，安装在所述收集室中用于相对于流体流动路径横向运动的振荡元件，并且所述元件具有被流动路径作用以使元件振荡的部分。
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公开(公告)号：US3630082A
公开(公告)日：1971-12-28
申请号：US3630082D
申请日：1970-06-01
摘要： A rotor measuring device comprising a rotor rotating without any mechanical bearing in an injection box having inlet and outlet ports the axis thereof are both tangent to a virtual helix formed on the inner walls of the box, in such manner that contiguous close fluid streams will follow an helicoidal course around said body and further that the axis of said body will be set at the center of a vortex tube and said body be driven rotatively at a speed in relation to the fluid outflow.
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公开(公告)号：US3608374A
公开(公告)日：1971-09-28
申请号：US3608374D
申请日：1969-03-18
申请人： HONEYWELL INC
发明人： MILLER CHARLES E
摘要： A FLOWMETER HAVING AN IMPACT PLATE MEANS, SUCH AS A VANE, WHICH IS MOUNTED IN A FLUID FLOW AND OSCILLATED. THE VANE IS SUBJECTED TO TORQUE PRODUCED BY THE DRAG OF THE FLOW IN THE VANE AND THE MASS FLOW RATE OF THE FLUID
IS INFERRED BY MEASURING THE TORQUE OR ITS EFFECT ON VARIOUS PARAMETERS OF THE MOTION OF THE VANE.-
公开(公告)号：US3460387A
公开(公告)日：1969-08-12
申请号：US3460387D
申请日：1967-05-22
申请人： CONTROL DATA CORP
发明人： BROWN WILLIAM R
CPC分类号： G01F1/20
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公开(公告)号：US3076336A
公开(公告)日：1963-02-05
申请号：US3329760
申请日：1960-06-01
申请人： ROSAEN FILTER CO
发明人： ROSAEN NILS O , ROSAEN OSCAR E
IPC分类号： B01D35/143 , G01F1/20 , G01F1/28
CPC分类号： G01F1/28 , B01D35/143 , B01D35/147 , G01F1/20
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