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    • 83. 发明授权
    • Method for determining the pressure present in the interior space of an air spring for a motor vehicle and apparatus for carrying out the method
    • 用于确定存在于用于机动车辆的空气弹簧的内部空间中的压力的​​方法和用于执行该方法的装置
    • US06931930B2
    • 2005-08-23
    • US10273179
    • 2002-10-18
    • Siegfried Reck
    • Siegfried Reck
    • B60G17/00B60G17/019F16F9/05G01L11/06G01S7/521G01S15/02G01S15/88G01N29/18G01N29/20
    • B60G17/01933B60G2204/111B60G2400/252B60G2401/176F16F9/05F16F9/052F16F2230/08G01L11/06G01N2291/02872G01S7/521G01S15/025G01S15/88G01S2007/52014
    • An ultrasonic pulse/echo measurement arrangement includes an ultrasonic transducer (12), which is mounted spatially fixed on an air spring cover plate (4). The arrangement further includes a fixedly mounted reference reflector (14), a target reflector (16) mounted on a roll-off piston (8) or on the bumper (18) as well as a transmitter/receiver evaluation electronic circuit (30). The running time as well as the amplitude of the reference signal is evaluated to precisely determine the pressure present in the interior space of the air spring. The ultrasonic transducer (12) has a λ/4-adaptation layer (22), whose impedance does not correspond to the geometric mean of the impedances of the ultrasonic transducer (12) and the ambient air of the interior space (20) of the air spring, but rather, is a mismatch. The evaluation electronic circuit (30) can be calibrated at ambient pressure for the determination of the inner pressure of the air spring. Preferably, the pressure measuring method according to the invention is also used to determine the running-time dependent spring height in an air spring (2) of a motor vehicle.
    • 超声波脉冲/回波测量装置包括空间上固定在空气弹簧盖板(4)上的超声波换能器(12)。 该装置还包括固定安装的参考反射器(14),安装在滚降活塞(8)或保险杠(18)上的目标反射器(16)以及发射器/接收器评估电子电路(30)。 评估运行时间以及参考信号的振幅以精确地确定存在于空气弹簧的内部空间中的压力。 超声换能器(12)具有λ/ 4适配层(22),其阻抗不对应于超声波换能器(12)的阻抗的几何平均值和内部空间(20)的环境空气 空气弹簧,而是一个不匹配。 评估电子电路(30)可以在环境压力下进行校准,以确定空气弹簧的内部压力。 优选地,根据本发明的压力测量方法还用于确定机动车辆的空气弹簧(2)中的运行时间相关弹簧高度。
    • 84. 发明授权
    • Non-intrusive pressure and level sensor for sealed containers
    • US06339960B1
    • 2002-01-22
    • US09698227
    • 2000-10-30
    • R. Daniel CostleyMark Henderson
    • R. Daniel CostleyMark Henderson
    • G01H324
    • G01N29/46G01F22/02G01F23/14G01F23/296G01L11/06G01N29/12G01N2291/02836G01N2291/02872G01N2291/2695
    • A method and apparatus for determining the internal pressure of a sealed container are disclosed. The method involves: exciting a lid of the container so as to create at least two modes of vibration having separate frequencies, wherein said frequencies are fundamental, f1, and a second frequency, preferably the second axisymmetric mode, f2; detecting the vibration resulting from said exciting to determine f1, and f2; using f2, which is indicative of internal pressure, to calculate a first value for internal pressure using a first mathematical model that is calibrated to the lid on the sealed container; using f1, which is indicative of volume of contents, to calculate the volume of contents in the sealed container using a second mathematical model that is calibrated to the lid on the sealed container, wherein a natural frequency of said lid is a function of said internal pressure and said volume of contents; and compensating for said volume of contents to determine a second value for internal pressure, wherein said second value for internal pressure is more reliable than said first value for internal pressure. The apparatus for determining the internal pressure of a sealed container of the invention includes: means for exciting a lid of the container so as to create at least two modes of vibration having separate frequencies, wherein said frequencies are fundamental, f1, and a second frequency, preferably the second axisymmetric mode, f2; detecting means for detecting vibration resulting from the exciting of said container to determine f1, and f2; calculating means for calculating a first value for internal pressure of said container using f2; calculating means for calculating the volume of contents of said container using f1; wherein a natural frequency of said lid is a function of said internal pressure and said volume of contents; and calculating means for compensating for said volume of contents to determine a second value for internal pressure, wherein said second value for internal pressure is more reliable than said first value for internal pressure.
    • 90. 发明申请
    • DEVICE FOR MEASURING THE PRESSURE OF A FLUID FLOWING THROUGH A PIPELINE
    • 用于测量一个用管道浇液体的压力
    • WO2016198430A3
    • 2017-02-02
    • PCT/EP2016062981
    • 2016-06-08
    • ABB SCHWEIZ AG
    • SZÁSZ PAULGASCH ARMINZUCCHI ROBERTO
    • G01L11/04G01L11/06
    • G01L11/04G01L11/06
    • The invention relates to a device (1) for measuring the pressure p of a fluid (3) flowing through a pipeline (2, 51), comprising at least one primary sensor (4), arranged on the outer circumference (2a, 51a) of the pipeline (2, 51), for measuring a primary physical measured variable (100) that is dependent on the pressure p, wherein the absolute value of the pressure p is obtained by setting said primary physical measured variable (100) against at least one calibrating quantity (101) and this calibrating quantity (101) relates to the geometry and/or to at least one material characteristic of the pipeline (2, 51). The device further comprises means (5) for determining the calibrating quantity (101) and also an evaluation unit (6) for determining the pressure p from the primary physical measured variable (100) in conjunction with the calibrating quantity (101), wherein the means (5) for determining the calibrating quantity (101) comprise: a measuring pipe (51), for which the calibrating quantity (101) is known and which can be fluidically connected to the pipeline (2), wherein the material and/or cross-sectional geometry of said measuring pipe differ(s) from the rest of the pipeline (2) and the primary sensor (4) is arranged on the outer circumference (51a) of the measuring pipe (51); and/or at least one calibrating sensor (52), arranged on the outer periphery (2a, 51a) of the pipeline (2) or the measuring pipe (51), said sensor being physically sensitive to the calibrating quantity (101).
    • 装置(1),用于测量的压力p通过管道(2,51)流动的流体(3)包括所述导管的外周(图2a,51a)的至少一个(2,51),其布置初级传感器(4),用于测量 的p有关的压力主要物理测量变量(100),其特征在于,通过偏移具有至少一个校准项(101),这些初级物理测量变量(100)中的压力p的绝对值可用,并且其中所述校准项(101)的几何形状和/或 管(2,51)中的至少一种材料性质是指,还包括:用于确定所述校准尺寸(101)和评估单元(6),用于在与校准尺寸连接确定所述主物理测量变量(100)的压力p(5) (101),所述装置(5),用于确定所述校准大小(101)×一个流体地连接到管道(2)连接到在该材料延伸和/或在Querschnittsgeometr测量管(51) 即,从流水线的其余部分(2)是不同的,以及用于校准的项目(101)是已知的,其中,在所述测量管(51)的外周51a中的主传感器(4)被布置和/或x为外周中的至少一个 所述管(2)或所述测量管(51)的部分(2a,51A),其设置校准传感器(52),其是与物理尺寸校准(101)包括敏感。