公开(公告)号：US06513385B1

公开(公告)日：2003-02-04

申请号：US09851511

申请日：2001-05-08

申请人： Wei Han ,  Vimal V. Shah ,  James R. Birchak ,  Bruce H. Storm, Jr. ,  Rajnikant M. Amin ,  Bayram Kalpakci ,  Fouad Fleyfel

发明人： Wei Han ,  Vimal V. Shah ,  James R. Birchak ,  Bruce H. Storm, Jr. ,  Rajnikant M. Amin ,  Bayram Kalpakci ,  Fouad Fleyfel

IPC分类号： G01N2900

CPC分类号： G01N29/2437 ,  G01B17/02 ,  G01N29/041 ,  G01N29/2468 ,  G01N29/28 ,  G01N2291/02854 ,  G01N2291/0421 ,  G01N2291/0422 ,  G01N2291/2634

摘要： A method and apparatus for analyzing a deposited layer on the inner surface of a fluid container wall having inner and outer surfaces are disclosed. One embodiment of the method comprises (a) transmitting an acoustic signal from a transmitter at a first distance from the outer surface of the wall; (b) receiving a first received signal A, comprising a reflection from the wall outer surface; (c) receiving a second received signal B, comprising a reflection from the wall inner surface; (d) receiving a third received signal C from the wall inner surface; (e) calculating a coefficient Rwp from A, B and C, and (f) calculating a coefficient Rpd from A, B and Rwp, and calculating the acoustic impedance of the deposited layer Zd from Rwp, Rpd, and Zw, where Zw is the acoustic impedance of the material between the transmitter and the wall outer surface. A preferred embodiment of the apparatus comprises a piezoelectric or ferroelectric transducer having front and back faces; a backing member acoustically coupled to said transducer back face and impedance-matched to said transducer element, said backing member having proximal and remote faces; and a delay material disposed between said transducer front face and the wall outer surface.

摘要翻译： 公开了一种用于分析具有内表面和外表面的流体容器壁的内表面上的沉积层的方法和装置。 该方法的一个实施例包括（a）从距离壁的外表面第一距离的发射器发射声信号; （b）接收第一接收信号A，包括来自所述壁外表面的反射; （c）接收第二接收信号B，其包括来自所述壁内表面的反射; （d）从所述壁内表面接收第三接收信号C; （e）从A，B和C计算系数Rwp，以及（f）从A，B和Rwp计算系数Rpd，并从Rwp，Rpd和Zw计算沉积层Zd的声阻抗，其中Zw为 发射机和墙外表面之间的材料的声阻抗。 该装置的优选实施例包括具有正面和背面的压电或铁电换能器; 声学耦合到所述换能器背面并与所述换能器元件阻抗匹配的背衬构件，所述背衬构件具有近端面和远端面; 以及设置在所述换能器前表面和所述壁外表面之间的延迟材料。

公开(公告)号：US5777230A

公开(公告)日：1998-07-07

申请号：US392507

申请日：1995-02-23

申请人： Leon C. Vandervalk

发明人： Leon C. Vandervalk

IPC分类号： G01B17/00 ,  B06B1/06 ,  G01B17/02 ,  G01D3/028 ,  G01H5/00 ,  G01N29/07 ,  G01N29/24 ,  G01N29/30 ,  G01N29/44 ,  G10K11/24

CPC分类号： B06B1/0662 ,  G01B17/025 ,  G01H5/00 ,  G01N29/07 ,  G01N29/2468 ,  G01N29/30 ,  G10K11/24 ,  G01N2291/0231 ,  G01N2291/02854

摘要： An ultrasonic probe includes an ultrasonic transducer; a delay line acoustically coupled to said transducer so that ultrasonic vibrations may be transmitted into said delay line from said ultrasonic transducer in a first direction, said delay line includes a first section and a second section; the first and second sections forming an interface that is substantially perpendicular to said first direction; and the second section including a surface for coupling with a material to be investigated. The probe can be used to measure a thickness of a coating on a substrate by transmitting a signal in a first direction from the transducer into the delay line; measuring a time t.sub.1 for a first portion of the signal to travel round trip from the transducer and the interface; using the measured time t.sub.1 to calculate an expected time t.sub.2 for a second portion of the signal to travel round trip from the transducer to an opposite face of the delay line; measuring a time t.sub.3 that it takes for a third portion of the signal to travel round trip from the transducer and an interface between the coating and the substrate; and calculating a thickness of the coating based on a difference between the time t.sub.2 and the time t.sub.3.

公开(公告)号：US5551296A

公开(公告)日：1996-09-03

申请号：US520174

申请日：1995-08-28

申请人： Vladimir Taran

发明人： Vladimir Taran

IPC分类号： B06B1/06 ,  G01N29/24 ,  G01N29/04

CPC分类号： G01N29/2468 ,  B06B1/0629 ,  G01N2291/0234 ,  G01N2291/2675

摘要： The method and the device for detecting flaws in materials and their connections comprise the radiation of ultrasonic rays and the reception of that energy after its reflection from the examined product, wherein the component which creates, radiates and receives the ultrasonic energy is comprised of a number of interconnected sub-plates. The focused energy which penetrates the metal has a special form appropriate to the type and shape of the product. The sub-plates are mechanically connected to a cylindrically-shaped base, and electrically interconnected by adjustable electronic control means which appropriately change the characteristics of the sub-plates when necessary. The bases of each sub-plate system are made of a material transparent to ultrasonic rays, for example plastic, and the contact surfaces of the bases of each of the sub-plate systems are fortified by grooves filled with a wear-resistant material. The shape of the base edge of each of the sub-plate systems is that of cylindrical surface section each sub-plate system is installed on the edge of one base and its shape is close to the shape of the base's cylindrical section surface. The surface of the base edge of each of the sub-plate systems is positioned at some angle relative to the contact surface of that base. One version of the device for detecting flaws in materials and their connections comprises two separate converters, each with its own cover and both connected into one unit by means of a holder and bridges. The connection between one of the converters, for example the radiator, and the holder, is made by means of a fixed bridge, while the connection between the second converter, for example the receiver, and the holder is established by means of a bridge with a hinge which allows limited movement.

摘要翻译： 用于检测材料及其连接中的缺陷的方法和装置包括超声射线的辐射和在从被检查产品反射之后接收该能量，其中产生，辐射和接收超声能量的部件包括数字 的互连子板。 穿透金属的聚焦能量具有适合于产品类型和形状的特殊形式。 子板机械地连接到圆柱形基座，并且通过可调节的电子控制装置电连接，在必要时适当地改变子板的特性。 每个子板系统的基部由对超声波射线例如塑料透明的材料制成，并且每个子板系统的基部的接触表面由填充有耐磨材料的凹槽加强。 每个子板系统的基部边缘的形状是圆柱形表面部分的形状，每个子板系统安装在一个基部的边缘上，并且其形状接近于基部的圆柱形部分表面的形状。 每个子板系统的基部边缘的表面相对于该基座的接触表面定位成一定角度。 用于检测材料及其连接件中的缺陷的装置的一个版本包括两个单独的转换器，每个转换器具有其自己的盖并且通过保持器和桥连接成一个单元。 转换器之一（例如散热器）和保持器之间的连接通过固定桥制成，而第二转换器（例如接收器）和保持器之间的连接是借助于具有 一个允许有限运动的铰链。

公开(公告)号：US5386727A

公开(公告)日：1995-02-07

申请号：US25937

申请日：1993-03-03

申请人： Donald S. Searle

发明人： Donald S. Searle

IPC分类号： G01L1/25 ,  G01N29/04 ,  G01N29/06 ,  G01N29/07 ,  G01N29/11 ,  G01N29/24 ,  G01N29/30 ,  G01N29/32 ,  G01N29/46 ,  G01N29/26

CPC分类号： G01N29/043 ,  G01L1/255 ,  G01N29/0618 ,  G01N29/07 ,  G01N29/11 ,  G01N29/2412 ,  G01N29/2468 ,  G01N29/2493 ,  G01N29/30 ,  G01N29/326 ,  G01N29/46 ,  G01N2291/02827 ,  G01N2291/02854 ,  G01N2291/0422 ,  G01N2291/044 ,  G01N2291/103 ,  G01N2291/262 ,  G01N2291/2623

摘要： A system and method for dynamically and non-destructively measuring the longitudinal stresses in a rail of a continuous rail track includes an ultrasonic transmitter which transmits a signature coded pulse pattern through a rail which pulse pattern is altered by the rail section dependent upon the longitudinal stress within the rail. The altered pulse pattern is then received and a data processor, in conjunction with a rail height detector, a rail temperature detector, and a rail splice detector, dynamically determines the longitudinal stresses in the rail as a function of the received pulse characteristics and calculates the stress free temperature (SFT) of the rail. A rail marker marks portions of the rail having unacceptable SFT values. Stress and related rail data are recorded on a data log. A position sensor provides milepost positions to three decimal places.

摘要翻译： 用于动态和非破坏性地测量连续轨道轨道中的纵向应力的系统和方法包括：超声波发射器，其通过轨道传输签名编码的脉冲模式，该轨迹根据纵向应力由轨道部分改变脉冲图案 在铁路内 然后接收改变的脉冲模式，并且与轨道高度检测器，轨道温度检测器和轨道拼接检测器结合的数据处理器根据接收到的脉冲特性动态地确定轨道中的纵向应力，并且计算 轨道的无应力温度（SFT）。 轨道标记标记轨道的部分具有不可接受的SFT值。 压力和相关轨道数据记录在数据日志中。 位置传感器提供三位小数位置的里程碑位置。

公开(公告)号：US20180074017A1

公开(公告)日：2018-03-15

申请号：US15553807

申请日：2016-02-29

申请人： KYOCERA CORPORATION

发明人： Hiroshi KATTA

IPC分类号： G01N29/024 ,  G01N29/30 ,  G01N33/53 ,  G01N33/543

CPC分类号： G01N29/024 ,  G01N29/02 ,  G01N29/022 ,  G01N29/2462 ,  G01N29/2468 ,  G01N29/30 ,  G01N29/4436 ,  G01N33/5308 ,  G01N33/54373 ,  G01N2291/012 ,  G01N2291/0255 ,  G01N2291/0423 ,  G01N2291/048 ,  H03H3/08

摘要： A measurement method of a specimen liquid includes preparing a sensor chip comprising a reference SAW element and a detection SAW element have a relationship of an expression: t·V

公开(公告)号：US20170299449A1

公开(公告)日：2017-10-19

申请号：US15515893

申请日：2015-10-29

申请人： DENSO CORPORATION

发明人： Takuya NAKAMURA

IPC分类号： G01L3/10 ,  G01L1/16 ,  G01K11/26

CPC分类号： G01L3/10 ,  G01B17/04 ,  G01K11/265 ,  G01L1/16 ,  G01L3/106 ,  G01N29/02 ,  G01N29/07 ,  G01N29/12 ,  G01N29/2462 ,  G01N29/2468 ,  G01N2291/011 ,  G01N2291/014 ,  G01N2291/02827 ,  G01N2291/02881 ,  G01N2291/0423

摘要： A sensing system includes: a surface acoustic wave sensor with a first surface acoustic wave device-and a second surface acoustic wave device; a sensing apparatus detecting an electrical characteristic of the first and second surface acoustic wave devices connected to the surface acoustic wave sensor; and a control apparatus calculating a physical quantity acting on one of a target to which the surface acoustic wave sensor is attached and the surface acoustic wave sensor. The sensitivity ratio of a first physical quantity and the sensitivity of a second physical quantity are different, and a third physical quantity is removable by averaging. The control apparatus removes the first physical quantity based on the results of a comparison operation on sensor signals from the first and second surface acoustic wave elements, uses the averaging process to remove the third physical quantity, and thereby calculates the second physical quantity.

公开(公告)号：US09671374B2

公开(公告)日：2017-06-06

申请号：US14638282

申请日：2015-03-04

申请人： THE BOEING COMPANY

发明人： Jeffrey Reyner Kollgard

IPC分类号： G01N29/32 ,  G01N29/24

CPC分类号： G01N29/2468 ,  G01N2291/101 ,  G01N2291/2638

摘要： An ultrasound probe assembly includes a transducer configured to transmit and receive ultrasound signals in relation to a structure, and a delay line coupled to the transducer. The delay line is configured to change shapes between an uncompressed state and a compressed state. In at least one embodiment, the changing shape of the delay line changes a shape of the ultrasound signals.

公开(公告)号：US09234777B2

公开(公告)日：2016-01-12

申请号：US13668984

申请日：2012-11-05

申请人： General Electric Company

发明人： Xiaolei Shirley Ao ,  Oleg Alexander Khrakovsky ,  Yue Ma

IPC分类号： G01N29/24 ,  G01F1/66 ,  G01N29/22

CPC分类号： G01F1/662 ,  G01F1/667 ,  G01N29/222 ,  G01N29/223 ,  G01N29/2468

摘要： An ultrasonic signal coupler includes a pipe having a first ultrasonic waveguide and a second ultrasonic waveguide penetrating the pipe so that ultrasonic transducers attached to ends of the ultrasonic waveguides communicate ultrasonic signals through the ultrasonic waveguides directly through a fluid traveling through the pipe.

摘要翻译： 超声信号耦合器包括具有第一超声波导管和穿透管的第二超声波导的管，使得附接到超声波导的端部的超声波换能器通过超声波波导直接通过穿过管的流体传送超声波信号。

公开(公告)号：US20150362393A1

公开(公告)日：2015-12-17

申请号：US14306919

申请日：2014-06-17

申请人： NXP B.V.

发明人： Dimitri Soccol ,  Annelies Falepin

IPC分类号： G01L9/12 ,  G01N33/00 ,  G01N29/036

CPC分类号： G01N29/036 ,  G01N29/043 ,  G01N29/2468 ,  G01N29/28 ,  G01N33/004 ,  G01N2291/014 ,  G01N2291/021 ,  G01N2291/0231 ,  G01N2291/0235 ,  G01N2291/044

摘要： One example discloses a combination sensor, comprising: a pressure sensor having an actuator which has a first resonant frequency; a cavity, coupled to the pressure sensor and able to receive a substance; wherein the cavity, in an absence of the substance, has a second resonant frequency in response to excitation by the actuator; wherein the cavity, in a presence of the substance, has a third resonant frequency in response to excitation by the actuator; wherein the first resonant frequency differs from the second and third resonant frequencies; and a sensor circuit which outputs a substance detected signal in response to the third resonant frequency in the cavity.

摘要翻译： 一个实例公开了一种组合传感器，包括：压力传感器，具有具有第一共振频率的致动器; 耦合到所述压力传感器并且能够接收物质的空腔; 其中在不存在所述物质的情况下，所述空腔响应于致动器的激励而具有第二共振频率; 其中在所述物质存在的情况下，所述空腔响应于致动器的激励而具有第三共振频率; 其中所述第一谐振频率与所述第二和第三谐振频率不同; 以及传感器电路，其响应于腔中的第三谐振频率输出物质检测信号。

公开(公告)号：US08924164B2

公开(公告)日：2014-12-30

申请号：US13827363

申请日：2013-03-14

申请人： Hitachi, Ltd.

发明人： Atsushi Baba ,  So Kitazawa ,  Naoyuki Kono

IPC分类号： G01B5/28 ,  G01S15/89 ,  G01N29/04 ,  G01N29/26 ,  G01N29/07 ,  G01N29/24

CPC分类号： G01N29/04 ,  G01N29/07 ,  G01N29/2468 ,  G01N29/262 ,  G01N2291/106 ,  G01S15/8918 ,  G01S15/8925 ,  G01S15/8927 ,  G01S15/8993 ,  G01S15/8997

摘要： An apparatus and a method for ultrasonic testing obtains high-resolution and high-S/N ratio testing results by driving a number of piezoelectric elements using fewer pulsers and receivers in comparison with the number of elements composing an array transducer. A sensor information setter sets a plurality of piezoelectric element groups used for transmission and a plurality of piezoelectric element groups used for reception among the plurality of piezoelectric elements composing an ultrasonic array transducer. A computer transmits an ultrasonic wave from the element cluster set for transmission, and stores an ultrasonic wave received by the element cluster set for reception. The procedure is repeated including different element cluster sets for transmission and reception to obtain first receive signals. The first receive signals are summed to obtain a second receive signal; and the second receive signal is displayed with reference to the sensor center position on a display unit.

摘要翻译： 与构成阵列换能器的元件的数量相比，超声波测试的装置和方法通过使用更少的脉冲发生器和接收器驱动多个压电元件来获得高分辨率和高S / N比测试结果。 传感器信息设定器在构成超声波阵列换能器的多个压电元件中设定用于透射的多个压电元件组和用于接收的多个压电元件组。 计算机从用于发送的元件簇集发送超声波，并存储由元件簇接收的超声波用于接收。 重复该过程，包括用于发送和接收的不同元件簇集，以获得第一接收信号。 将第一接收信号相加以获得第二接收信号; 并且参考显示单元上的传感器中心位置显示第二接收信号。