APPARATUS AND METHOD FOR MEASURING FLUID PROPERTIES

    公开(公告)号:US20180172573A1

    公开(公告)日:2018-06-21

    申请号:US15738865

    申请日:2016-06-30

    发明人: John Gallagher

    IPC分类号: G01N11/16 G01F1/84

    摘要: Apparatus for the measurement of a fluid property is shown generally at (10). The apparatus is typically suitable for the measurement of a property of a fluid (not shown) such as its viscosity, and comprises a tube (12) for the through-flow of fluid to be measured, a torsion bar (14), a magnetic drive coil (16) and a magnetic pick-up coil (18). The tube (12) is mounted within a casing (20), shown in cutaway. An inertial frame (22) is secured to the casing via isolators (not shown). The tube (12) has a web portion (24) supporting inertial masses (26) connected to, and radially spaced from, the tube (12). The tube is connected at each end to pipe fittings (28) via end flanges (30) and seals (32). The single tube (12) has been selectively machined to produce areas (12a) of low compliance which effectively form springs. The torsion bar (14) is of relatively low inertia and is fixed at the midpoint of the length of the tube (12). The mass system (24, 26) is of much higher inertia and is fixed to the tube (12) as shown. The tube (12) is then fixed in frame (22) which is of even higher inertia, and held in place in casing (20) by means of fixing supports (not shown).

    Vibratory transducer
    2.
    发明授权

    公开(公告)号:US07353717B2

    公开(公告)日:2008-04-08

    申请号:US11448897

    申请日:2006-06-08

    IPC分类号: G01F1/78

    摘要: To conduct a fluid, the transducer has a flow tube which in operation is vibrated by an excitation assembly and whose inlet-side and outlet-side vibrations are sensed by means of a sensor arrangement. To produce shear forces in the fluid, the flow tube is at least intermittently excited into torsional vibrations about a longitudinal flow-tube axis. The transducer further comprises a torsional vibration absorber which is fixed to the flow tube and which in operation covibrates with the torsionally vibrating flow tube, thus producing reactive torques which at least partially balance torques developed in the vibrating flow tube. One of the advantages of the transducer disclosed is that it is dynamically balanced to a large extent even in the face of variations in fluid density or viscosity.

    Hemostasis Analyzer and Method
    3.
    发明申请
    Hemostasis Analyzer and Method 有权
    止血分析仪和方法

    公开(公告)号:US20070092405A1

    公开(公告)日:2007-04-26

    申请号:US11425818

    申请日:2006-06-22

    申请人: Hans Kautzky

    发明人: Hans Kautzky

    IPC分类号: G01N33/00

    CPC分类号: G01N11/167 G01N33/49

    摘要: A method and device for blood hemostasis analysis is disclosed. A blood sample is displaced to reach a resonant state. The resonant frequency of the blood sample is determined before, during and after a hemostasis process. The changes in the resonant frequency of the blood sample are indicative of the hemostasis characteristics of the blood sample.

    摘要翻译: 公开了一种用于血液止血分析的方法和装置。 血液样本被移位以达到共振状态。 在止血过程之前,之中和之后确定血液样品的共振频率。 血液样本的共振频率的变化表示血液样本的止血特征。

    Vibratory transducer
    4.
    发明申请

    公开(公告)号:US20060000292A1

    公开(公告)日:2006-01-05

    申请号:US11212718

    申请日:2005-08-29

    IPC分类号: G01F1/84

    摘要: To conduct a fluid, the transducer has a flow tube which in operation is vibrated by an excitation assembly and whose inlet-side and outlet-side vibrations are sensed by means of a sensor arrangement. To produce shear forces in the fluid, the flow tube is at least intermittently excited into torsional vibrations about a longitudinal flow-tube axis. The transducer further comprises a torsional vibration absorber which is fixed to the flow tube and which in operation covibrates with the torsionally vibrating flow tube, thus producing reactive torques which at least partially balance torques developed in the vibrating flow tube. One of the advantages of the transducer disclosed is that it is dynamically balanced to a large extent even in the face of variations in fluid density or viscosity.

    Method and apparatus for hemostasis and blood management
    5.
    发明授权
    Method and apparatus for hemostasis and blood management 有权
    止血和血液管理的方法和装置

    公开(公告)号:US06787363B2

    公开(公告)日:2004-09-07

    申请号:US10261331

    申请日:2002-10-01

    IPC分类号: G01N3386

    摘要: A procedure for hemostasis and blood management, particularly for cardiovascular procedures, provides: sampling instructions, i.e., when to draw blood samples and how to pre-treat the blood samples, a decision tree to assist the interpretation of hemostasis analysis results allowing for the identification of various coagulopathies, and treatment suggestions related to the hemostasis analysis results. The analysis, interpretation and identification may be conducted by a suitably programmed computer.

    摘要翻译: 止血和血液管理,特别是心血管手术的程序提供:抽样指导,即何时抽取血液样本以及如何预先处理血液样本,一个决策树,以协助解释止血分析结果,以便识别 的各种凝血病,以及与止血分析结果相关的治疗建议。 分析,解释和识别可以由适当编程的计算机进行。

    VIBRATIONAL VISCOSIMETER
    6.
    发明公开

    公开(公告)号:US20240133786A1

    公开(公告)日:2024-04-25

    申请号:US18049542

    申请日:2022-10-24

    摘要: A viscosity measurement system and method of fabrication thereof, the system comprising a measuring element and a housing, the measuring element comprising a base and a counterweight, forced oscillation generating means, a tube, and a rod; the base, the counterweight and the forced oscillation means being sealed in the housing; the tube extending out of the housing through an opening in a bottom wall of the housing; the forced oscillation generating means being connected to an electric board secured to a top wall of the housing opposite the bottom wall for excitation of the rod; and the rod extending within the tube and immerging of the housing for immersion, at least in part, in a fluid to be measured, wherein the counterweight is distant from the top wall and from lateral walls of the housing, and the base is supported by the bottom wall of the housing in such a way to simultaneously provide a rigid attachment on an outer circumference of the bottom wall and on a circumference of the opening in the bottom wall, and a flexible dampening attachment on a remaining interface between a bottom surface of the base of the measuring element and an upper surface of the bottom wall of the housing.

    VISCOSITY SENSOR
    9.
    发明申请
    VISCOSITY SENSOR 审中-公开
    粘度传感器

    公开(公告)号:US20160327465A1

    公开(公告)日:2016-11-10

    申请号:US15108644

    申请日:2014-03-25

    发明人: James Masino Li Gao

    IPC分类号: G01N11/16 E21B49/08

    摘要: A fluid is received into a sample tube. A processor causes an energy to be applied to the sample tube to induce vibration in the sample tube at a resonant frequency of the sample tube containing the fluid. The processor stops the supply of energy to the sample tube. The processor monitors an amplitude of the vibration of the sample tube as the amplitude of the vibrations diminish over a period of time. The processor uses the monitored amplitude to calculate an RF of the sample tube containing the fluid. The processor uses the calculated RF to calculate the viscosity of the fluid.

    摘要翻译: 将流体接收到样品管中。 处理器将能量施加到样品管,以在包含流体的样品管的共振频率处引起样品管中的振动。 处理器停止向样品管供应能量。 当振动的振幅在一段时间内减小时,处理器监测样品管的振动的幅度。 处理器使用监测的幅度来计算包含流体的样品管的RF。 处理器使用计算的RF来计算流体的粘度。

    Non-invasive fluid density and viscosity measurement
    10.
    发明授权
    Non-invasive fluid density and viscosity measurement 有权
    非侵入性流体密度和粘度测量

    公开(公告)号:US08166801B2

    公开(公告)日:2012-05-01

    申请号:US11865042

    申请日:2007-09-30

    申请人: Dipen N. Sinha

    发明人: Dipen N. Sinha

    IPC分类号: G01N9/00

    CPC分类号: G01N11/167 G01N9/002

    摘要: The noninvasively measurement of the density and viscosity of static or flowing fluids in a section of pipe such that the pipe performs as the sensing apparatus, is described. Measurement of a suitable structural vibration resonance frequency of the pipe and the width of this resonance permits the density and viscosity to be determined, respectively. The viscosity may also be measured by monitoring the decay in time of a vibration resonance in the pipe.

    摘要翻译: 描述了管道作为感测装置执行的管道部分中静态或流动流体的密度和粘度的非侵入性测量。 测量管道的合适的结构振动共振频率和该共振的宽度可以分别确定密度和粘度。 也可以通过监测管道中振动共振的时间的衰减来测量粘度。