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21 条记录 (耗时 0.013 秒)

    DETECTION OF INGRESS OF WATER IN AN INTERMEDIATE LAYER USING ACOUSTIC RESONANCE TECHNOLOGY
    3.
    发明申请
    DETECTION OF INGRESS OF WATER IN AN INTERMEDIATE LAYER USING ACOUSTIC RESONANCE TECHNOLOGY 有权
    使用声学共振技术检测中间层水分的生成

    公开(公告)号：US20090064770A1

    公开(公告)日：2009-03-12

    申请号：US12209227

    申请日：2008-09-12

    申请人： Age A. Olsen ,  Jostein Jacobsen ,  Tore Magne Halas Skar ,  Petter Norli ,  Ashild Bergh ,  Nils-Otto Negard ,  Steinar Lag

    发明人： Age A. Olsen ,  Jostein Jacobsen ,  Tore Magne Halas Skar ,  Petter Norli ,  Ashild Bergh ,  Nils-Otto Negard ,  Steinar Lag

    IPC分类号： G01N5/02

    CPC分类号： G01N29/46 ,  G01N29/11 ,  G01N29/4454 ,  G01N2291/0253 ,  G01N2291/02845 ,  G01N2291/044 ,  G01N2291/2634

    摘要： An apparatus and a method for determining a moisture ingress in an insulating layer surrounding a pipe, the insulating layer being surrounded by a tubular jacket. The apparatus includes an acoustic transducer in communication with an exciter adapted to provide a brief and broad banded acoustic signal which includes frequencies which by their propagation in the material of the jacket has a wavelength which corresponds to twice the thickness of the jacket or an odd multiple of twice the thickness of the jacket, and to process a reverberation signal emitted from the jacket in response to sending into the jacket the brief and broad banded output signal from the transducer. The signal processor is adapted to make a frequency analysis of the received reverberation signal for producing a frequency response curve, to establish features of the frequency response curve which are characteristic of a moisture content in the insulation material on the inside of the jacket, and to output an indication being specific for the moisture ingress.

    摘要翻译： 一种用于确定围绕管道的绝缘层中的水分进入的装置和方法，所述绝缘层被管状护套包围。 该装置包括与激励器通信的声换能器，其适于提供简短且宽带的声信号，该声信号包括通过其在护套材料中传播的波长对应于护套厚度的两倍或奇数倍的频率的频率 是套管厚度的两倍，并且响应于将来自换能器的简短和宽带输出信号发送到夹套中来处理从护套发射的混响信号。 信号处理器适于对接收到的混响信号进行频率分析以产生频率响应曲线，以建立频率响应曲线的特征，其特征在于外套上的绝缘材料中的含水量，并且 输出特定于水分进入的指示。

    Imaging and Sensing of Thin Layer Using High-Frequency Ultrasonic Transducers
    4.
    发明公开
    Imaging and Sensing of Thin Layer Using High-Frequency Ultrasonic Transducers 审中-公开

    公开(公告)号：US20240036005A1

    公开(公告)日：2024-02-01

    申请号：US18266101

    申请日：2021-12-08

    申请人： GEEGAH LLC

    发明人： Amit Lal ,  Justin Kuo

    IPC分类号： G01N29/036 ,  G01N29/34 ,  B06B1/06 ,  H10N39/00 ,  H01L23/38

    CPC分类号： G01N29/036 ,  G01N29/348 ,  B06B1/0622 ,  H10N39/00 ,  H01L23/38 ,  G01N2291/0253

    摘要： There is a need for miniature, low power, and remotely powered sensors that can measure moisture and reactive gas content in the environment. Examples of devices that already exist include dew-point sensors, moisture sensors, and oxygen sensors. This disclosure describes the use of high-frequency ultrasonic pulses to interrogate thin films on the imaging surface of a CMOS integrated GHz Ultrasonic imager substrate. In one embodiment the device uses a Peltier cooler and heater chip to detect the dew point by the act of moisture condensing on the surface. Integrated temperature measurement is enabled by using some of the pixels, isolated from the environment, to be reflectors that measure the phase change in the reflected signal due to the change in the speed of sound in the silicon substrate. In another embodiment a thin film is exposed to gases, changing its ultrasonic impedance, which can be used to extract the film thickness and its ultrasonic properties.

    Measurement of fluid properties of two-phase fluids using an ultrasonic meter
    6.
    发明授权
    Measurement of fluid properties of two-phase fluids using an ultrasonic meter 失效
    使用超声波仪测量两相流体的流体性质

    公开(公告)号：US5115670A

    公开(公告)日：1992-05-26

    申请号：US490864

    申请日：1990-03-09

    申请人： Joseph Shen

    发明人： Joseph Shen

    IPC分类号： G01F1/66 ,  G01F1/74 ,  G01N29/024 ,  G01N29/44

    CPC分类号： G01F1/66 ,  G01F1/74 ,  G01N29/024 ,  G01N29/4472 ,  G01N2291/0222 ,  G01N2291/02425 ,  G01N2291/0253 ,  G01N2291/02836 ,  G01N2291/102

    摘要： A method is disclosed for determining the composition of a two-phase fluid, such as saturated steam. In that method, the transit times of sound are measured within the two-phase fluid, the speed of sound of the two-phase fluid is calculated from the measured transit times, and the composition of the two-phase fluid is calculated from the calculated speed of sound. From the calculated linear velocity and the calculated composition, one can calculate at least one fluid property of the two-phase fluid, such as mass flow rate or energy flow rate. All of these calculations can be performed by a microprocessor.

    摘要翻译： 公开了一种用于确定两相流体（例如饱和蒸汽）的组成的方法。 在该方法中，声音的传播时间在两相流体内测量，从测量的传播时间计算出两相流体的声速，并从计算出的两相流体的组成计算出 声音的速度。 根据计算的线速度和计算出的组成，可以计算出两相流体的至少一种流体性质，如质量流量或能量流量。 所有这些计算都可以由微处理器执行。

    Detection of ingress of water in an intermediate layer using acoustic resonance technology
    7.
    发明授权
    Detection of ingress of water in an intermediate layer using acoustic resonance technology 有权
    使用声共振技术检测中间层中的水进入

    公开(公告)号：US08011227B2

    公开(公告)日：2011-09-06

    申请号：US12209227

    申请日：2008-09-12

    申请人： Åge A. Olsen ,  Jostein Jacobsen ,  Tore Magne Halås Skar ,  Petter Norli ,  Ashild Bergh ,  Nils-Otto Negård ,  Steinar Låg

    发明人： Åge A. Olsen ,  Jostein Jacobsen ,  Tore Magne Halås Skar ,  Petter Norli ,  Ashild Bergh ,  Nils-Otto Negård ,  Steinar Låg

    IPC分类号： G01M3/04

    CPC分类号： G01N29/46 ,  G01N29/11 ,  G01N29/4454 ,  G01N2291/0253 ,  G01N2291/02845 ,  G01N2291/044 ,  G01N2291/2634

    摘要： An apparatus and a method for determining a moisture ingress in an insulating layer surrounding a pipe, the insulating layer being surrounded by a tubular jacket. The apparatus includes an acoustic transducer in communication with an exciter adapted to provide a brief and broad banded acoustic signal which includes frequencies which by their propagation in the material of the jacket has a wavelength which corresponds to twice the thickness of the jacket or an odd multiple of twice the thickness of the jacket, and to process a reverberation signal emitted from the jacket in response to sending into the jacket the brief and broad banded output signal from the transducer. The signal processor is adapted to make a frequency analysis of the received reverberation signal for producing a frequency response curve, to establish features of the frequency response curve which are characteristic of a moisture content in the insulation material on the inside of the jacket, and to output an indication being specific for the moisture ingress.

    摘要翻译： 一种用于确定围绕管道的绝缘层中的水分进入的装置和方法，所述绝缘层被管状护套包围。 该装置包括与激励器通信的声换能器，其适于提供简短且宽带的声信号，该声信号包括通过其在护套材料中传播的波长对应于护套厚度的两倍或奇数倍的频率的频率 是套管厚度的两倍，并且响应于将来自换能器的简短和宽带输出信号发送到夹套中来处理从护套发射的混响信号。 信号处理器适于对接收到的混响信号进行频率分析以产生频率响应曲线，以建立频率响应曲线的特征，其特征在于外套上的绝缘材料中的含水量，并且 输出特定于水分进入的指示。

    Ionic liquid high temperature gas sensors
    8.
    发明授权
    Ionic liquid high temperature gas sensors 有权
    离子液体高温气体传感器

    公开(公告)号：US07464580B2

    公开(公告)日：2008-12-16

    申请号：US11522833

    申请日：2006-09-18

    申请人： Xiangqun Zeng ,  Lei Yu ,  Rex Xiaofeng Ren

    发明人： Xiangqun Zeng ,  Lei Yu ,  Rex Xiaofeng Ren

    IPC分类号： G01N29/02

    CPC分类号： G01N29/036 ,  G01N29/228 ,  G01N2291/0215 ,  G01N2291/0253 ,  G01N2291/0254

    摘要： An ionic liquid piezoelectric gas sensor for the detection of polar and nonpolar organic vapors. The gas sensor can operate at high temperatures with a fast linear response which is also reversible. At high temperatures, the frequency change (Δf) versus concentration (C) curve mirrors the Henry's gas law, such that the concentration of a gas sample in liquid solvent is proportional to the concentration or partial pressure of the sample in gas phase. The gas sensor can be used for quantitative analysis of gas vapors and determination of Henry constants.

    摘要翻译： 一种用于检测极性和非极性有机蒸气的离子液体压电气体传感器。 气体传感器可以在高温下工作，并具有快速的线性响应，也是可逆的。 在高温下，频率变化（Deltaf）与浓度（C）曲线反映了亨利气体定律，使得气体样品在液体溶剂中的浓度与气相中样品的浓度或分压成比例。 气体传感器可用于气体蒸气的定量分析和亨利常数的测定。

    Ionic liquid high temperature gas sensors
    9.
    发明申请
    Ionic liquid high temperature gas sensors 有权
    离子液体高温气体传感器

    公开(公告)号：US20070068222A1

    公开(公告)日：2007-03-29

    申请号：US11522833

    申请日：2006-09-18

    申请人： Xiangqun Zeng ,  Lei Yu

    发明人： Xiangqun Zeng ,  Lei Yu

    IPC分类号： G01N29/02

    CPC分类号： G01N29/036 ,  G01N29/228 ,  G01N2291/0215 ,  G01N2291/0253 ,  G01N2291/0254

    摘要： An ionic liquid piezoelectric gas sensor for the detection of polar and nonpolar organic vapors. The gas sensor can operate at high temperatures with a fast linear response which is also reversible. At high temperatures, the frequency change (Δf) versus concentration (C) curve mirrors the Henry's gas law, such that the concentration of a gas sample in liquid solvent is proportional to the concentration or partial pressure of the sample in gas phase. The gas sensor can be used for quantitative analysis of gas vapors and determination of Henry constants.

    摘要翻译： 一种用于检测极性和非极性有机蒸气的离子液体压电气体传感器。 气体传感器可以在高温下工作，并具有快速的线性响应，也是可逆的。 在高温下，频率变化（Deltaf）与浓度（C）曲线反映了亨利气体定律，使得气体样品在液体溶剂中的浓度与气相中样品的浓度或分压成比例。 气体传感器可用于气体蒸气的定量分析和亨利常数的测定。