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1. 发明申请

US20180306754A1 METHOD OF DETERMINING ONE PHYSICOCHEMICAL PARAMETER OF A CHEMICAL AGENT IN A FLUID AND A SYSTEM THEREFOR 审中-公开
公开(公告)号：US20180306754A1
公开(公告)日：2018-10-25
申请号：US15767792
申请日：2016-10-13
申请人： Plastic Omnium Advanced Innovation and Research
发明人： Jurgen DEDEURWAERDER
IPC分类号： G01N29/22 , G01N29/024 , F01N3/20
CPC分类号： G01N29/222 , F01N3/2066 , F01N2610/02 , G01N29/024 , G01N2291/02809 , G01N2291/02818 , G01N2291/02827 , G01N2291/02863
摘要： A method of determining one physicochemical parameter of a chemical agent in a fluid is provided the method comprising the steps of: providing a pressurized fluid of said chemical agent upstream of a dosing unit in a line; changing the opening condition of said dosing unit at a determinable time to to provide a dosing of said fluid or a change in the dosing of said fluid; determining the time, tp, at which the pressure wave in said line resulting from the pressure drop upon changing the opening condition of said dosing unit is detected at a known distance, d, from said dosing unit; determining the velocity of wave propagation from said time interval tp−to and said known distance, d; and deriving the physicochemical parameter of said chemical agent from said velocity of wave propagation. The invention also pertains to a system for determining the physicochemical parameter of a chemical agent in a fluid, operating according to the same method.

2. 发明申请

US20180259437A1 METHODS, DEVICES, AND SYSTEMS FOR MEASURING PHYSICAL PROPERTIES OF FLUID 审中-公开
公开(公告)号：US20180259437A1
公开(公告)日：2018-09-13
申请号：US15873275
申请日：2018-01-17
申请人： Abram Scientific, Inc.
发明人： Ramkumar Abhishek , Norimasa Yoshimizu
IPC分类号： G01N11/16 , G01N29/036 , G01N29/02 , G01N33/487 , G01N33/49
CPC分类号： G01N11/16 , G01N29/02 , G01N29/022 , G01N29/036 , G01N33/48707 , G01N33/4905 , G01N2291/02466 , G01N2291/02818
摘要： Disclosed herein are devices for measuring, at one or more time points, one or more properties or changes in properties of a fluid sample. The devices may comprise a chamber defining an internal volume of the device suitable for receiving and retaining the fluid sample; a plurality of layers, the plurality comprising at least a first layer below the chamber, at least a second layer above the chamber, and a substrate layer between the first and second layers, wherein: the substrate layer is linked to at least one suspended element located within the chamber; the suspended element is linked to the substrate layer by at least two compliant structures located within the chamber; and the suspended element is configured to oscillate upon application of an actuating signal to at least one electrically conductive path, which runs across at least two of the compliant structures and the suspended element. Related methods and uses are also disclosed.

3. 发明授权

US09927402B2 Method for measuring a fluid density or a fluid viscosity 有权
公开(公告)号：US09927402B2
公开(公告)日：2018-03-27
申请号：US14444561
申请日：2014-07-28
申请人： ABB Schweiz AG
发明人： Axel Kramer , Hubert Brandle , Thomas Alfred Paul
IPC分类号： G01N9/02 , G01N29/036 , G01N29/02 , G01N29/44 , G01N9/34 , G01N11/16 , G01N9/00
CPC分类号： G01N29/036 , G01N9/002 , G01N9/34 , G01N11/16 , G01N29/022 , G01N29/4472 , G01N2009/006 , G01N2291/02818 , G01N2291/0427
摘要： A method and device for estimating a density value ρm indicative of a true density ρ or for estimating a viscosity value ηm indicative of a true viscosity η of a fluid is disclosed. For this, a first resonance frequency fR of a first mechanical oscillator in a reference volume and a second resonance frequency fF of a second mechanical oscillator in contact with the fluid are measured. The estimated value ρm or ηm is then derived using these resonance frequencies fR and fF. During this derivation, at least one fluid-temperature- or fluid-pressure-dependent parameter of the fluid is used. Additionally or alternatively, the first (i.e. reference) mechanical oscillator is arranged in contact with a reference fluid. Thus, fundamental errors in the derivation of the estimated value ρm or ηm are reduced and the estimated value becomes more reliable.

4. 发明申请

US20180045554A1 SYSTEMS AND METHODS FOR POWER MANAGEMENT IN ULTRASONIC SENSORS 审中-公开
公开(公告)号：US20180045554A1
公开(公告)日：2018-02-15
申请号：US15233476
申请日：2016-08-10
申请人： SSI Technologies, Inc.
发明人： Lawrence B. Reimer , Gregory P. Murphy
IPC分类号： G01F25/00 , G01F23/296
CPC分类号： G01F25/0061 , G01F23/296 , G01F23/2962 , G01N29/024 , G01N29/34 , G01N2291/022 , G01N2291/02818 , G01N2291/02836 , G01N2291/101
摘要： A system and method for controlling the energy of sound waves generated for fluid sensing. The system includes a transducer configured to generate a first sound wave and a second sound wave and to detect a first echo of the first and second sound waves. The system also includes a driver configured to drive the transducer to produce the first and second sound waves. The system also includes a controller configured to compare a signal characteristic of the first echo of the first and second sound waves. The controller is configured to control the driver based on comparing the signal characteristic of the first echo of the first and second sound waves.

5. 发明授权

US09719904B2 Density and viscosity sensor and measuring method 有权
公开(公告)号：US09719904B2
公开(公告)日：2017-08-01
申请号：US14394085
申请日：2013-04-12
申请人： Eric Donzier
发明人： Eric Donzier
IPC分类号： G01N9/00 , G01N11/16 , G01N29/036 , E21B49/08
CPC分类号： G01N9/002 , E21B49/08 , G01N11/16 , G01N29/036 , G01N2009/006 , G01N2291/02818 , G01N2291/2634
摘要： A density and viscosity sensor for measuring density and viscosity of a fluid, comprises: a housing (4) defining a chamber (8) isolated from the fluid (3), the housing (4) comprising an area defining a membrane (9) separating the chamber (8) from the fluid (3); a resonating element (5) arranged to be immersed in the fluid (3) and mechanically coupled to the membrane (9); and an actuating/detecting element (6) coupled to the resonating element (5), the actuating/detecting element (6) being positioned within the chamber (8) and mechanically coupled to the membrane (9), the actuating/detecting element (6) comprising at least one piezoelectric element (10) comprising two sides (11, 12) substantially parallel to the membrane (9); The membrane (9) has a thickness enabling transfer of mechanical vibration between the actuating/detecting element (6) and the resonating element (5).One side (11) of the piezoelectric element (10) comprises a single conductive area (13).Another side (12) of the piezoelectric element (10) comprises at least two conductive areas (14A, 14B, 14C, 14D, 14E, 14F, 14G, 14H) isolated from each other, each conductive area (14A, 14B, 14C, 14D, 14E, 14F, 14G, 14H) being coupled to an electrical potential (V1, V2) of opposite sign relatively to adjacent areas such that the resonating element (5) is driven to vibrate in a selected plane (P1, P2) perpendicular to the membrane (9).

6. 发明申请

US20170146688A1 FLUID ANALYSIS SYSTEM 审中-公开
公开(公告)号：US20170146688A1
公开(公告)日：2017-05-25
申请号：US14947565
申请日：2015-11-20
申请人： SCHLUMBERGER TECHNOLOGY CORPORATION
发明人： Hitoshi Sugiyama , Christopher Harrison
IPC分类号： G01V9/00 , G01N9/00 , G01F1/32
CPC分类号： G01F1/8472 , E21B47/102 , E21B49/10 , E21B2049/085 , G01F1/8409 , G01F1/8413 , G01F1/8481 , G01N9/002 , G01N2009/006 , G01N2291/02818 , G01N2291/02836
摘要： A vibrating-tube fluid measurement device includes an electrical isolator formed of glass, wherein the vibrating tube is mounted to a base block via the electrical isolator and electrically isolated from the base block via the electrical isolator.

7. 发明申请

US20170052098A1 Fluid Densitometer 审中-公开
标题翻译：流体密度计
公开(公告)号：US20170052098A1
公开(公告)日：2017-02-23
申请号：US15237010
申请日：2016-08-15
申请人： Joel David Bell , Randall W. Dear , David A. Tinker
发明人： Joel David Bell , Randall W. Dear , David A. Tinker
IPC分类号： G01N9/00 , G01N29/036
CPC分类号： G01N9/002 , G01N29/036 , G01N2009/006 , G01N2291/014 , G01N2291/02818
摘要： Densitometers for measuring the density of fluid in a flow of fluid.
摘要翻译：用于测量流体流体密度的密度计。

8. 发明申请

US20170023532A1 METHOD AND APPARATUS FOR CHARACTERIZING A MEDIUM USING ULTRASOUND MEASUREMENTS 审中-公开
标题翻译：用超声波测量表征介质的方法和装置
公开(公告)号：US20170023532A1
公开(公告)日：2017-01-26
申请号：US15301123
申请日：2015-03-31
申请人： NEDERLANDSE ORGANISATIE VOOR TOEGEPAST- NATUURWETTENSCHAPPELIJK ONDERZOEK TNO
发明人： Arno Willem Frederik VOLKER , Paul Louis Maria Joseph VAN NEER , Guillaumeé Lucien Gérard PIERRE , Francois Louis Denis Marie BOUVET , Sophie CROZAT
IPC分类号： G01N29/52 , G01N15/02 , G01N29/44 , G01N29/024 , G01N29/032
CPC分类号： G01N29/52 , G01N15/0255 , G01N29/024 , G01N29/032 , G01N29/343 , G01N29/4472 , G01N29/46 , G01N2291/02416 , G01N2291/02818 , G01N2291/044 , G01N2291/048 , G01N2291/102 , G01N2291/105
摘要： Properties of a medium, such as its particle size distribution, are characterized using a measurement cell containing a medium between walls of the cell, with ultrasound transducers on opposite walls. Ultrasound is transmitted from the ultrasound transducers on both sides and transmission and reflection responses are detected. An ultrasound frequency dependent ratio of a Fourier transform value of a product of signals obtained from transmission responses in opposite directions and a Fourier transform value of a product of signals obtained from reflections at the transducers is computed. Preferably, the first received reflected and transmitted pulses in response to pulse excitation are used to compute the ratio. Ultrasound frequency dependent ultrasound speed and/or attenuation data of ultrasound in the medium are computed as a function of the ultrasound frequency from the ratio. This eliminates the effect of the walls.
摘要翻译：介质的性质，例如其粒度分布，使用包含细胞壁之间的介质的测量池，在相对的壁上具有超声换能器。超声波从两侧的超声波传感器传输，并检测发射和反射响应。计算从相反方向上的传输响应获得的信号的乘积的傅立叶变换值与从换能器处的反射获得的信号的乘积的傅立叶变换值的超声频率相关比。优选地，使用响应于脉冲激励的第一接收的反射和发射的脉冲来计算该比率。超声频率相关超声速度和/或介质中超声波的衰减数据作为超声频率的函数计算。这消除了墙壁的影响。

9. 发明授权

US09459191B2 Method of and apparatus for measuring the molecular weight of a gas 有权
标题翻译：用于测量气体分子量的方法和装置
公开(公告)号：US09459191B2
公开(公告)日：2016-10-04
申请号：US13989232
申请日：2011-11-28
申请人： Neil Alexander Downie
发明人： Neil Alexander Downie
IPC分类号： G01N29/02 , G01N9/00 , G01N29/036
CPC分类号： G01N9/002 , G01N29/036 , G01N2291/021 , G01N2291/02818
摘要： There is provided a meter for measuring the molecular weight of a gas, the meter comprising a housing having an inlet and an interior for receiving said gas to be measured, a sensor assembly comprising a high-frequency planar piezoelectric crystal oscillator located within said housing so that, in use, the piezoelectric crystal oscillator is in contact with said gas, said sensor assembly being arranged: to drive the piezoelectric crystal oscillator such that the piezoelectric crystal oscillator resonates at a single resonant frequency; to measure said single resonant frequency of said piezoelectric crystal oscillator to determine the density of gas; and to determine from the density, determined or pre-determined pressure of the gas and determined or pre-determined temperature of the gas, the molecular weight of the gas.
摘要翻译：提供了一种用于测量气体的分子量提供了一种测量仪，包括：具有用于接收所述气体的入口和内部的壳体的计进行测量时，所述壳体中的传感器组件，其包括位于内一个平面型高频压电晶体振荡器，从而即，在使用中，压电晶体振荡器是与所述的气体，所述布置的传感器组件，包括：驱动压电晶体振荡器，使得压电晶体振荡器谐振在一个单一的谐振频率; 测量所述压电晶体振荡器的所述单个谐振频率以确定气体的密度; 并从密度确定，确定或气体的预先确定的压力并确定或预先确定的气体中，气体的分子量的温度。

10. 发明授权

US09448150B2 Method and apparatus for determining kinematic viscosity through the transmission and reception of ultrasonic energy 有权
标题翻译：通过发射和接收超声波能量来确定运动粘度的方法和装置
公开(公告)号：US09448150B2
公开(公告)日：2016-09-20
申请号：US14171394
申请日：2014-02-03
申请人： Herbert A. Estrada , Donald R. Augenstein , Bobbie W. Griffith , Calvin R. Hastings
发明人： Herbert A. Estrada , Donald R. Augenstein , Bobbie W. Griffith , Calvin R. Hastings
IPC分类号： G01N29/02 , G01N11/00 , G01N29/032
CPC分类号： G01N11/00 , G01N29/02 , G01N29/032 , G01N2011/0073 , G01N2291/011 , G01N2291/014 , G01N2291/015 , G01N2291/02818
摘要： An apparatus for determining a fluid's kinematic viscosity from ultrasonic energy that has passed through the fluid of unknown viscosity along an acoustic path of known length. A computer of the apparatus determines a characteristic frequency of a received electrical signal associated with the ultrasonic energy and measures the fluid's velocity of sound. The kinematic viscosity of the fluid is determined by the computer on a continuous basis based on the characteristic frequency and the sound velocity. A method for determining a fluid's kinematic viscosity.
摘要翻译：一种用于根据已知长度的声道穿过未知粘度的流体的超声波能量来确定流体的运动粘度的装置。该装置的计算机确定与超声能量相关联的接收电信号的特征频率并测量流体的声速。基于特征频率和声速，连续地由计算机确定流体的运动粘度。一种确定流体运动粘度的方法。

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