-
公开(公告)号：US11899034B2
公开(公告)日：2024-02-13
申请号：US17648364
申请日：2022-01-19
CPC分类号： G01N9/002 , E21B49/0875 , E21B49/10 , G01N2009/004
摘要： Described is a device for measuring fluid density. The device is a flow meter including a housing with one side configured to mount to a flow conduit and define an outlet flow orifice near one end of the housing. The other side defines an inlet flow orifice near another end of the housing. The housing permits fluid to be introduced into the inlet flow orifice, flow through a flow cavity, and pass from the outlet flow orifice. The flow meter also includes a sensor head near the outlet flow orifice. The sensor head vibrates at a frequency upon introduction of electrical power while in contact with a fluid, detects the vibration frequency of the sensor head, and transmits the detected vibration frequency, which is associated with a density of the fluid. A system and method for determining a fluid density of a fluid using the described device is also disclosed.
-
2.发明申请公开(公告)号：US20170117905A1
公开(公告)日：2017-04-27
申请号：US14924531
申请日：2015-10-27
CPC分类号： G01H13/00 , G01N5/02 , G01N9/002 , G01N2009/004 , G01N2009/006 , H03L7/00 , H03L7/0805
摘要： Systems and Methods for controlling one or more mechanical resonators and determining information from resonant shift of the reonator(s) behavior, including at least one mechanical resonator, an excitation element for driving the resonator(s), a sensor for monitoring the motion of the resonator(s), at least one phase locked loop (PLL) in feedback between the excitation and monitoring elements, wherein each PLL is configured to operate at or near a different resonant mode of the resonator(s), and a processor for determining information from PLL internal signals indicative of a resonator frequency shift.
-
公开(公告)号：US3926035A
公开(公告)日：1975-12-16
申请号：US52802274
申请日：1974-11-29
申请人： ITT
CPC分类号： G01N29/036 , G01N9/002 , G01N2009/004 , G01N2009/008 , G01N2291/0256
摘要： A gravitometer incorporating two ferromagnetic cantilevered vanes simultaneously vibrated by a spaced ferromagnetic driver at their respective same or different frequencies. The driver provides a field reversal which produces a double frequency at two respective piezoelectric crystal pickups fixed to the respective vanes. Two respective divide-by-two dividers cause the driver to produce a synchronous field drive so that the apparatus forms two combined closed loop electromechanical oscillators, the loops having amplifiers with respective gains adequate to sustain vibrations of both vanes continuously.
摘要翻译： 并入两个铁磁悬臂叶片的重力计同时由间隔的铁磁驱动器以相应或不同的频率振动。 驱动器提供场反转，其在固定到各个叶片的两个相应的压电晶体拾取器处产生双倍频率。 两个分开的二分频器使得驱动器产生同步励磁驱动器，使得该装置形成两个组合的闭环机电振荡器，该回路具有相应增益的放大器，其足以连续地维持两个叶片的振动。
-
公开(公告)号：US20170082765A1
公开(公告)日：2017-03-23
申请号：US15311246
申请日：2014-07-23
发明人： Hua Xia , christopher Michael Jones , Robert Atkinson , Tian He , Bin Dai , Jing Shen
CPC分类号： G01V1/46 , E21B47/06 , E21B47/065 , E21B49/08 , E21B49/081 , E21B2049/085 , G01N9/002 , G01N2009/004 , G01N2009/006
摘要： A downhole formation fluid identification sensing module for measuring averaged gas molecular weight of wellbore formation fluid acquires simultaneous temperature, pressure, and density measurements. The sensing module includes two venturi-type gas sensors that both contain vibrating tubes. During operation, formation fluid flows through the vibrating tubes whereby resonant frequency measurements are acquired simultaneously with temperature and pressure measurements. Each measurement is then utilized to determine the gas molecular weight of the dry, wet or saturated formation fluid.
-
公开(公告)号：US08973427B2
公开(公告)日：2015-03-10
申请号：US13058549
申请日：2009-08-07
申请人： Joseph A. Jarrell
发明人： Joseph A. Jarrell
CPC分类号： G01N30/62 , G01H13/00 , G01N9/002 , G01N30/8631 , G01N2009/004 , G01N2030/027
摘要： Embodiments of the present invention are directed to resonating detection devices in which the sample flows through a conduit having a section in which the conduit is grouped or concentrated with the point of maximum movement. An exemplary device includes a primary conduit, at least one first flex section, at least one second flex section and at least one analysis section. The primary conduit cooperates with an energizer for inducing vibration and a programmed calculator for determining a resonant frequency to calculate a mass related parameter of the solution carried therein.
摘要翻译： 本发明的实施例涉及谐振检测装置，其中样品流过具有其中管道被分组或集中的部分的管道，其中最大运动点。 示例性装置包括主导管，至少一个第一挠曲部分，至少一个第二弯曲部分和至少一个分析部分。 主导管与用于感应振动的激励器和用于确定共振频率的编程计算器配合，以计算其中携带的溶液的质量相关参数。
-
公开(公告)号：US5421190A
公开(公告)日：1995-06-06
申请号：US70948
申请日：1993-06-04
申请人： Hubert Brandle , Walter Gribi , Ken-Yves Haffner
发明人： Hubert Brandle , Walter Gribi , Ken-Yves Haffner
CPC分类号： G01N29/036 , G01N9/002 , H01H33/563 , G01N2009/004 , G01N2291/0256
摘要： The device serves to measure the density of a gas, in particular of the insulating gas of a gas-insulated electrical installation. It contains two resonators (11, 12) each comprising a piezoelectric crystal (14, 15) and each comprising two electrodes applied to the crystal. A first (11) of the two resonators (11, 12) is mounted in a first chamber (5) containing the gas to be measured, whereas a second (12) is mounted in a second chamber (6) sealed with respect to the gas.Despite small dimensions and despite simple and robust construction, this device is intended to have a high measurement precision over a long period of time.This is achieved by drawing the two resonators (11, 12) from a multiplicity of similar resonators manufactured by mass production and not subjected to a frequency alignment. The first resonator (11) is unaltered with respect to the manufacture in mass production. The second resonator (12) is likewise unaltered with respect to the manufacture in mass production and, under vacuum and with equality of temperature, it has the same resonance frequency as the first resonator (11) within a specified frequency tolerance. The second resonator (12) may, however, also be modified, by altering its electrodes (18, 19), in such a way that, under vacuum and with equality of temperature, it has the same resonance frequency as the first resonator (11) within the specified frequency tolerance.
摘要翻译： 该装置用于测量气体的密度，特别是气体绝缘电气装置的绝缘气体的密度。 它包含两个谐振器（11,12），每个谐振器包括压电晶体（14,15），每个包括施加到晶体的两个电极。 两个谐振器（11,12）中的第一（11）安装在包含要测量的气体的第一腔室（5）中，而第二腔室（12）安装在相对于第二腔室 加油站。 尽管尺寸小，尽管结构简单而坚固，但该装置的长期测量精度要高。 这是通过从由大量生产制造的多个类似的谐振器中抽出两个谐振器（11,12）而不进行频率对准来实现的。 相对于批量生产的制造，第一谐振器（11）是未改变的。 第二共振器（12）在大规模生产中同样没有变化，并且在真空和温度相等的情况下，它在特定的频率公差范围内具有与第一谐振器（11）相同的共振频率。 然而，第二谐振器（12）可以通过改变其电极（18,19）而被修改，使得在真空和温度相等的情况下，它具有与第一谐振器（11）相同的谐振频率 ）在指定的频率范围内。
-
公开(公告)号：US3934127A
公开(公告)日：1976-01-20
申请号：US517212
申请日：1974-10-23
CPC分类号： G06F7/68 , G01F15/046 , G01N9/002 , G06F7/62 , G01N2009/004 , G01N2009/008
摘要： Apparatus for producing a digital or analog output directly proportional to the ratio of the densities of two gases at the same temperature and pressure. The ratio is usually that of the density of a gas of interest to the density of air. One outstanding feature of this instrument resides in the use of an automatic DC current control for gas and air vibrating ferromagnetic vanes which unexpectedly provides temperature compensation. The gas vane is immersed in the gas. The air vane is immersed in air. Gas and air piezoelectrical crystals for the respective gas and air vanes produce output signals of frequencies corresponding to the vibrational frequencies of the respective gas and air vanes. In combination with other gear, phase lock loops adapted for frequency multiplication are employed and advantageously improve accuracy. Substantial economy is surprisingly achieved in solving the equation. Still another feature resides in the equipment saving involved in time sharing two long counters.It is striking that the gravity of a fluid has been found to be directly proportional to either one of the following two expressions:(T.sub.g - T.sub.go) (f.sub.a - f.sub.ao ')And ##EQU1## WHERE T.sub.go is a constant, T.sub.ao is a constant, f.sub.ao is a constant, T.sub.ao is a constant, T.sub.g is the sample fluid vane period, T.sub.a is the reference (e.g. air) vane period, f.sub.a is the reciprocal of T.sub.a, and f.sub.ao ' is a constant.
摘要翻译： 用于产生与在相同温度和压力下的两种气体的密度比成正比的数字或模拟输出的装置。 该比率通常是空气密度所关注的气体的密度。 该仪器的一个突出特点在于对气体和空气振动铁磁叶片使用自动直流电流控制，这意味着提供温度补偿。 气体叶片浸入气体中。 风叶片浸入空气中。 用于相应气体和空气叶片的气体和空气压电晶体产生对应于相应气体和空气叶片的振动频率的频率的输出信号。 结合其他齿轮，采用适用于倍频的锁相环，有利地提高精度。 在解决方程中，实质性经济令人意外地实现。 另外还有一个功能在于设备节省时间分配两个长计时器。
-
公开(公告)号：US20190154485A1
公开(公告)日：2019-05-23
申请号：US16311953
申请日：2017-05-18
发明人： Hao Zhu , Alfred Rieder
CPC分类号： G01F1/8436 , G01F1/74 , G01F1/8477 , G01F15/02 , G01F25/0007 , G01N9/002 , G01N11/16 , G01N2009/004
摘要： A method for determining density and/or mass flow of a compressible medium with a measuring transducer of vibration-type having at least two oscillators, each including a pair of measuring tubes, wherein the pairs of measuring tubes are arranged for parallel flow, wherein the two oscillators have mutually independent oscillator oscillations with mutually differing eigenfrequencies for corresponding oscillation modes. The method includes steps of determining the values of the eigenfrequencies of at least two different oscillator oscillations, determining at least two preliminary density measured values based on the values of the eigenfrequencies, and determining a correction term for one of the preliminary density measured values and/or for a preliminary measured value of flow based on the preliminary density measured values and the values of the eigenfrequencies.
-
9.发明申请公开(公告)号：US20150096385A1
公开(公告)日：2015-04-09
申请号：US14402452
申请日：2013-05-23
IPC分类号： G01F1/86 , G01F1/32 , G01N29/036
CPC分类号： G01F1/86 , G01F1/3227 , G01F1/74 , G01F15/08 , G01F23/2966 , G01F23/2967 , G01N9/002 , G01N29/022 , G01N29/036 , G01N2009/004 , G01N2009/006 , G01N2291/014 , G01N2291/024 , G01N2291/02818
摘要： There is provided a method of measuring the physical properties of a two-phase fluid using at least one piezoelectric oscillator immersed in the two-phase fluid, the two-phase fluid comprising a gas fraction and a liquid fraction, the method comprising: a) measuring the resonant frequency of the or each piezoelectric oscillator as a function of time; and b) determining, from the or each resonant frequency, at least one physical property of the two-phase fluid to characterise the two-phase fluid.
摘要翻译： 提供了使用浸入两相流体中的至少一个压电振荡器来测量两相流体的物理性质的方法，所述两相流体包括气体馏分和液体馏分，所述方法包括：a） 测量每个压电振荡器的谐振频率作为时间的函数; 以及b）从所述或每个共振频率确定所述两相流体的至少一个物理性质以表征所述两相流体。
-
公开(公告)号：US5386714A
公开(公告)日：1995-02-07
申请号：US75576
申请日：1993-06-22
申请人： Andrew N. Dames
发明人： Andrew N. Dames
IPC分类号： G01N9/00 , G01N29/036 , G01N29/02 , G01L9/08 , G01N4/00
CPC分类号： G01N9/002 , G01N29/036 , G01N2009/004 , G01N2291/02818
摘要： A density sensor comprises a cavity arranged to receive the gas whose density is to be sensed. The cavity is divided into two chambers by a flexibly mounted diaphragm. A piezoelectric excitation device at one end of the cavity is used to excite the gas in the cavity into resonant vibration in a mode having an anti-node at the diaphragm, which causes the diaphragm to vibrate with the gas. Another piezoelectric device senses the vibration, whose frequency is a function of the known mass of the diaphragm and the density and speed of sound in the gas. This last parameter can be sensed by exciting the gas in the cavity into resonant vibration in a second mode having a node at the diaphragm, so that the diaphragm does not take part in the vibration. Alternatively, it can be sensed by providing a second cavity, also arranged to receive the gas but not having a diaphragm, and resonantly vibrating the gas in the second cavity.
摘要翻译： PCT No.PCT / GB91 / 02156 Sec。 371日期：1993年7月22日 102（e）日期1993年7月22日PCT 1991年12月5日PCT公布。 出版物WO92 / 日期：1992年7月9日。密度传感器包括被布置成接收其感测密度的气体的空腔。 通过灵活安装的隔膜将空腔分成两个腔室。 空腔一端的压电激励装置用于将空腔中的气体以在隔膜处具有反节点的模式激发为共振振动，这导致隔膜与气体振动。 另一个压电装置感测振动，其频率是已知质量的函数以及气体中声音的密度和速度的函数。 可以通过将空腔中的气体激励成具有在隔膜处的节点的第二模式的共振振动来感测最后的参数，使得隔膜不参与振动。 或者，可以通过提供第二空腔来感测，该第二腔也布置成接收气体但不具有隔膜，并且在第二空腔中共振地振动气体。
-
-
-
-
-
-
-
-
-
搜索结果
31 条记录 (耗时 0.013 秒)
