Measuring arrangement and method for measuring the density of flowable media

    公开(公告)号:US10436692B2

    公开(公告)日:2019-10-08

    申请号:US15535459

    申请日:2015-11-18

    Abstract: An arrangement for measuring density of flowable media includes: a fluid path for conveying a medium; a pump for driving a defined volume flow of the medium in the fluid path; a pressure difference measuring arrangement for registering a pressure drop due to the volume flow of the medium between first and second pressure taps in the fluid path; a densimeter having at least one oscillator, which has at least one oscillatable measuring tube for conveying the medium, at least one exciter mechanism for exciting oscillations of the measuring tube, and at least one sensor arrangement for registering at least one oscillatory characteristic of the oscillator. The at least one measuring tube is arranged in the fluid path. An evaluation apparatus ascertains the density of the medium based on the volume flow, the volume flow dependent pressure drop and the at least one oscillatory characteristic of the oscillator.

    Density Measuring Device
    34.
    发明申请
    Density Measuring Device 审中-公开
    密度测量装置

    公开(公告)号:US20160349091A1

    公开(公告)日:2016-12-01

    申请号:US15102626

    申请日:2014-11-03

    Abstract: The density measuring device serves for measuring density, ρ, of a flowable medium and comprises a measuring device electronics (ME) as well as a measuring transducer (MT) electrically connected therewith. The measuring transducer includes a measuring tube (10), an oscillation exciter (41) for exciting and maintaining oscillations and an oscillation sensor (51) for registering oscillations of the at least one measuring tube. The measuring device electronics is adapted by means of an oscillation measurement signal (s1) as well as an exciter signal (e1) to adjust a drive force effecting wanted oscillations (namely oscillations with a predetermined wanted frequency, fN) of the measuring tube. The drive force is adjusted in such a manner that during a predetermined phase control interval a phase shift angle, φN, by which a velocity response, VN, of the measuring tube Is phase shifted relative to a wanted force component, FN, of the drive force, is less than −20° and greater than −80°, and/or the wanted frequency has a frequency value, which corresponds to greater than 1.00001 times, equally as well less than 1.001 times, a frequency value of an instantaneous resonant frequency of the measuring tube. Moreover, the measuring device electronics is adapted based on the oscillation measurement signal (s1) present during the phase control interval to ascertain at least one frequency measured value, Xf, which represents the wanted frequency for the phase control interval, as well as also with application of the frequency measured value, Xf, to generate a density measured value, Xρ, representing a density, ρ.

    Abstract translation: 密度测量装置用于测量流动介质的密度ρ,并且包括测量装置电子装置(ME)以及与其电连接的测量传感器(MT)。 测量传感器包括测量管(10),用于激发和保持振荡的振荡激励器(41)和用于配准至少一个测量管的振荡的振荡传感器(51)。 测量装置电子装置通过振荡测量信号(s1)以及激励器信号(e1)进行调节,以调节影响测量管的所需振荡(即,具有预定有用频率fN的振荡)的驱动力。 调节驱动力,使得在预定的相位控制间隔期间,测量管Is的速度响应VN相对于驱动器的想要的力分量FN相移的相移角φN 力小于-20°且大于-80°,和/或有用频率具有频率值,其对应于大于1.00001倍,等于1.001倍,瞬时谐振频率的频率值 的测量管。 此外,基于在相位控制间隔期间存在的振荡测量信号(s1)来适应测量装置电子装置,以确定表示相位控制间隔的有用频率的至少一个频率测量值Xf,以及也用 应用频率测量值Xf,产生密度测量值,Xρ,表示密度ρ。

    MEASURING ARRANGEMENT HAVING A SUPPORT ELEMENT AND A SENSOR
    35.
    发明申请
    MEASURING ARRANGEMENT HAVING A SUPPORT ELEMENT AND A SENSOR 审中-公开
    具有支持元件和传感器的测量装置

    公开(公告)号:US20160256867A1

    公开(公告)日:2016-09-08

    申请号:US15029154

    申请日:2014-09-10

    Abstract: A measuring arrangement comprising: a support element having a longitudinal axis, wherein a sensor for ascertaining a process variable of a gaseous or liquid fluid is arranged on the support element; and the sensor, wherein the sensor has a fluid duct, which extends within the sensor. The support element has a fluid duct, and for mechanical connection of the fluid duct with the fluid duct of the sensor a bonding layer, which extends over a portion of a surface of the support element and over a portion of a surface of the sensor. The bonding layer comprises at least one fluorinated polymer. The support element has for connection of the fluid duct of the support element with the fluid duct of the sensor, in each case, at least one connection element, which protrude from the support element perpendicularly to the longitudinal axis and which protrude inwardly into the fluid duct of the sensor. The connection elements are secured at least to a the sensor by means of a bonding layer, and wherein the bonding layer comprises a fluorinated polymer.

    Abstract translation: 一种测量装置,包括:具有纵向轴线的支撑元件,其中用于确定气态或液体流体的过程变量的传感器布置在所述支撑元件上; 和传感器,其中传感器具有在传感器内延伸的流体管道。 支撑元件具有流体管道,并且用于将流体管道与传感器的流体管道机械连接,粘合层在支撑元件的表面的一部分上方延伸并超过传感器表面的一部分。 粘合层包含至少一种含氟聚合物。 支撑元件用于将支撑元件的流体管道与传感器的流体管道连接,在每种情况下,至少一个连接元件,其从支撑元件垂直于纵向轴线突出并且向内突出到流体中 传感器的导管。 连接元件通过粘合层至少固定在传感器上,并且其中粘合层包括含氟聚合物。

    Measuring transducer of vibration-type with four curved measuring tubes
    36.
    发明授权
    Measuring transducer of vibration-type with four curved measuring tubes 有权
    带四个弯曲测量管的振动型测量传感器

    公开(公告)号:US09410835B2

    公开(公告)日:2016-08-09

    申请号:US14242059

    申请日:2014-04-01

    Abstract: The measuring transducer comprises: a transducer housing (71), of which an inlet-side, housing end is formed by means of an inlet-side, flow divider (201) having four flow openings (201A, 201B, 201C, 201D) and an outlet-side, housing end is formed by means of an outlet-side, flow divider (202) having four flow openings (202A, 202B, 202C, 202D); as well as a tube arrangement having four, curved, or bent, measuring tubes (181, 182, 183, 184) connected to the flow dividers (201, 202) for guiding flowing medium along flow paths connected in parallel, wherein each of the four measuring tubes opens with an inlet-side, measuring tube end into one of the flow openings of the flow divider (201) and with an outlet-side, measuring tube end into one the flow openings of the flow divider (202). The transducer further comprises an exciter mechanism for exciting oscillations of said measuring tube. The tube arrangement exhibits a natural bending oscillation mode, called V-Mode, and the exciter mechanism is adapted to excite bending oscillation in said V-mode.

    Abstract translation: 测量传感器包括:换能器壳体(71),其入口侧壳体端部通过具有四个流动开口(201A,201B,201C,201D)的入口侧分流器(201)形成,并且 出口侧的壳体端部通过具有四个流动开口(202A,202B,202C,202D)的出口侧分流器(202)形成; 以及具有连接到分流器(201,202)的四个弯曲或弯曲的测量管(181,182,183,184)的管装置,用于沿着并联连接的流动路径引导流动介质,其中每个 四个测量管打开,入口侧,测量管端到分流器(201)的一个流动开口中,并且出口侧的测量管端部分为一个分流器(202)的流动开口。 换能器还包括用于激励所述测量管的振荡的激励机构。 管配置呈现称为V型的自然弯曲振荡模式,并且激励机构适于激发所述V模式中的弯曲振荡。

    Measuring Transducer of Vibration-Type with Four Curved Measuring Tubes
    37.
    发明申请
    Measuring Transducer of Vibration-Type with Four Curved Measuring Tubes 有权
    用四个弯曲测量管测量振动型传感器

    公开(公告)号:US20140352454A1

    公开(公告)日:2014-12-04

    申请号:US14242059

    申请日:2014-04-01

    Abstract: The measuring transducer comprises: a transducer housing (71), of which an inlet-side, housing end is formed by means of an inlet-side, flow divider (201) having four flow openings (201A, 201B, 201C, 201D) and an outlet-side, housing end is formed by means of an outlet-side, flow divider (202) having four flow openings (202A, 202B, 202C, 202D); as well as a tube arrangement having four, curved, or bent, measuring tubes (181, 182, 183, 184) connected to the flow dividers (201, 202) for guiding flowing medium along flow paths connected in parallel, wherein each of the four measuring tubes opens with an inlet-side, measuring tube end into one of the flow openings of the flow divider (201) and with an outlet-side, measuring tube end into one the flow openings of the flow divider (202). The transducer further comprises an exciter mechanism for exciting oscillations of said measuring tube. The tube arrangement exhibits a natural bending oscillation mode, called V-Mode, and the exciter mechanism is adapted to excite bending oscillation in said V-mode.

    Abstract translation: 测量传感器包括:换能器壳体(71),其入口侧壳体端部通过具有四个流动开口(201A,201B,201C,201D)的入口侧分流器(201)形成,并且 出口侧的壳体端部通过具有四个流动开口(202A,202B,202C,202D)的出口侧分流器(202)形成; 以及具有连接到分流器(201,202)的四个弯曲或弯曲的测量管(181,182,183,184)的管装置,用于沿着并联连接的流动路径引导流动介质,其中每个 四个测量管打开,入口侧,测量管端到分流器(201)的一个流动开口中,并且出口侧的测量管端部分为一个分流器(202)的流动开口。 换能器还包括用于激励所述测量管的振荡的激励机构。 管配置呈现称为V型的自然弯曲振荡模式,并且激励机构适于激发所述V模式中的弯曲振荡。

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