公开(公告)号：US6109108A

公开(公告)日：2000-08-29

申请号：US939555

申请日：1997-09-29

Applicant: Toshihiro Ohtani ,  Hirotsugu Ogi ,  Masahiko Hirao

Inventor： Toshihiro Ohtani ,  Hirotsugu Ogi ,  Masahiko Hirao

IPC: B06B1/04 ,  G01N29/11 ,  G01N29/24 ,  G01N29/44 ,  G06F3/06 ,  G01N29/20

CPC classification number: G01N29/48 ,  B06B1/04 ,  G01N29/11 ,  G01N29/2412 ,  G01N2291/014 ,  G01N2291/0422 ,  G01N2291/0423 ,  G01N2291/101

Abstract: An electromagnetic acoustic transducer is provided which includes magnets and a sheet type coil unit. The magnets are permanent magnets or electromagnets to provide a static magnetic field to an object to be inspected. The coil unit includes a pair of spiral or meander coils of an electrically conductive material, sandwiched between upper and middle insulation sheet and middle and lower insulation sheet. The coils are used for transmission and reception, respectively. All the ends of the respective coils extend through throughholes formed through the upper and middle insulation sheets to the surface of the ultrasonic transducer, and are connected to external leads. The ends for earth are commonly connected to form a common ground terminal. The inspection system with the electromagnetic acoustic resonance which is a combination of resonant technique and a non-contact electromagnetic acoustic transducer can accomplish evaluating the absolute value of ultrasonic attenuation. The attenuation is highly sensitive to the accumulated fatigue damage, showing a maximum around 20-30% of the whole life. This system can assess the damage advance and predict the remaining life of metals.

Abstract translation: 提供了一种电磁换能器，其包括磁体和片状线圈单元。 磁体是永磁体或电磁体，以向被检查物体提供静态磁场。 线圈单元包括一对导电材料的螺旋或曲折线圈，夹在中间和中间绝缘片和中间和下部绝缘片之间。 线圈分别用于发送和接收。 各个线圈的所有端部延伸通过上绝缘片和中间绝缘片形成的通孔到超声波换能器的表面，并且连接到外部引线。 地极端部通常连接形成公共接地端子。 具有共振技术和非接触电磁换能器组合的电磁声共振检测系统可以实现超声波衰减的绝对值的评估。 衰减对累积的疲劳损伤高度敏感，最大值在整个寿命的20-30％左右。 该系统可以评估损坏进展并预测金属的剩余寿命。

公开(公告)号：US5885844A

公开(公告)日：1999-03-23

申请号：US617769

申请日：1996-08-05

Applicant: Donald James Weir ,  Neville John Freeman ,  Iain Peter May

Inventor： Donald James Weir ,  Neville John Freeman ,  Iain Peter May

IPC: G01N29/00 ,  G01N5/02 ,  G01N27/00 ,  G01N29/036 ,  G01N29/20

CPC classification number: G01N29/036 ,  G01N2291/0212 ,  G01N2291/0222 ,  G01N2291/0256

Abstract: A method of identifying an analyte, using a chemical sensor (e.g., a piezoelectric crystal oscillator) which produces an output frequency responsive to different analytes by a characteristic change in the output frequency. The sensor is exposed to a step change (to) in concentration of the analyte and the resulting frequency characteristic measured. An expression for this characteristic is derived consisting of two exponential functions (F, S), one (F) derived from the early part of the frequency characteristic and the other (S) from the latter part. The four parameters (A.sub.2, A.sub.3, A.sub.4, A.sub.5) resulting from the functions so obtained are characteristic of the particular analyte.

Abstract translation: PCT No.PCT / GB93 / 01985 Sec。 371日期：1996年8月5日 102（e）日期1996年8月5日PCT提交1993年9月21日PCT公布。 公开号WO95 / 08765 日期1995年3月30日使用化学传感器（例如压电晶体振荡器）鉴定分析物的方法，其通过输出频率的特性变化产生响应于不同分析物的输出频率。 传感器暴露于分析物浓度的阶跃变化（和），并且测量得到的频率特性。 该特征的表达式由两个指数函数（F，S），一个（F）从频率特性的早期部分导出，另一个（S）来自后一部分。 由这样获得的功能产生的四个参数（A2，A3，A4，A5）是特定分析物的特征。

公开(公告)号：US5540098A

公开(公告)日：1996-07-30

申请号：US197283

申请日：1994-02-16

Applicant: Tetsu Ohsawa

Inventor： Tetsu Ohsawa

IPC: B65G1/00 ,  B65G49/07 ,  G01B17/00 ,  G01S7/521 ,  G01S15/04 ,  H01L21/67 ,  H01L21/677 ,  G01N29/20 ,  G01N29/22

CPC classification number: H01L21/67778 ,  G01S15/04 ,  G01S7/521 ,  Y10S414/137

Abstract: A transfer device an ultrasonic sensor having an oscillating section for oscillating an ultrasonic beam toward wafers which are horizontally arranged in a carrier and a receiving section for receiving a reflected ultrasonic wave, and driving mechanism for vertically moving the ultrasonic sensor relative to the carrier so as to sequentially radiate an ultrasonic beam to the end faces of the wafers. The presence/absence of a wafer and projection of the wafer in and from the carrier are detected based on the reflected wave received by the receiving section.

Abstract translation: 一种超声波传感器，具有用于使超声波束朝向水平布置在载体中的晶片的振荡部分和用于接收反射的超声波的接收部分的振荡部分，以及用于相对于载体垂直移动超声波传感器的驱动机构， 以顺序地将超声波束辐射到晶片的端面。 基于由接收部接收的反射波检测晶片的存在/不存在以及晶片在载体中的投影。

公开(公告)号：US5996413A

公开(公告)日：1999-12-07

申请号：US962438

申请日：1997-10-31

Applicant: Subramanian T. M. Iyer ,  Harvey O. Webster, III

Inventor： Subramanian T. M. Iyer ,  Harvey O. Webster, III

IPC: G01N29/04 ,  G01N29/18 ,  G01N29/20

CPC classification number: G01N29/045 ,  G01N2291/011 ,  G01N2291/015 ,  G01N2291/0423 ,  G01N2291/103

Abstract: A method is provided for testing prestressed concrete pipe. In the method, elastic waves are serially induced at at least three different inducing locations along the surface of the conduit. The shear wave component of each induced elastic wave is detected by at least one, and preferably two, acoustic sensors disposed at fixed sensing sites along the conduit. The relationship between at least one parameter of each induced shear wave and the distance between each inducing location and the acoustic sensor(s), are correlated and compared with standard correlations to identify structural discontinuities in the conduit. In a typical example of the method, elastic waves are induced using a mechanical hammer at multiple inducing sites around a multiplicity of annuli along the length of the conduit. Each annulus is separated from adjoining annuli by 2-4 feet.

Abstract translation: 提供了一种测试预应力混凝土管的方法。 在该方法中，沿着管道表面的至少三个不同的诱导位置连续诱导弹性波。 每个感应弹性波的剪切波分量由位于导管处的固定感测位置处的至少一个，优选两个声学传感器检测。 将每个诱导剪切波的至少一个参数与每个诱导位置与声学传感器之间的距离之间的关系与标准相关性进行相关并与导管中的结构不连续性进行比较。 在该方法的典型实例中，使用机械锤在沿管道长度的多个环周围的多个诱导位置处诱导弹性波。 每个环与相邻的环隔开2-4英尺。

公开(公告)号：US5565627A

公开(公告)日：1996-10-15

申请号：US320993

申请日：1994-10-11

Applicant: John A. Dorr

Inventor： John A. Dorr

IPC: B65H23/02 ,  G01N29/11 ,  G01N29/22 ,  G01N29/20

CPC classification number: G01N29/221 ,  B65H23/0204 ,  G01N29/11 ,  B65H2553/30 ,  G01N2291/015 ,  G01N2291/0237 ,  G01N2291/102 ,  G01N2291/103

Abstract: An ultrasonic edge detector system wherein the lateral position of a moving web or sheet is monitored by projecting an ultrasonic beam from a transmitting transducer toward a receiving transducer and the web edge occludes or shadows more or less of the ultrasonic beam changing the ultrasonic energy received by the receiving transducer. Changes in output of the receiving transducer are detected as a measure of change in edge position. Accuracy in the measurement of the position of the edge is achieved by lengthening the path of acoustic energy from the transmitting transducer to the receiving transducer by positioning an acoustic reflector in said path. Reverberations are reduced by causing the angle of incidence of the ultrasonic beam to be at an angle .alpha. of greater than 0 degrees. A dual receiving transducer system is disclosed compensating for fluctuations in power to the edge detector system.

Abstract translation: 一种超声波边缘检测器系统，其中通过将来自发射换能器的超声波束投射到接收换能器来监测移动幅材或片材的横向位置，并且幅材边缘或多或少地遮挡或者影响超声波束改变由 接收换能器。 检测接收传感器的输出变化作为边缘位置变化的量度。 通过将声反射器定位在所述路径中，通过将声能从发射换能器延伸到接收换能器的路径来实现测量边缘位置的精度。 通过使超声波束的入射角处于大于0度的角度α来减小混响。 公开了一种双接收传感器系统，其补偿边缘检测器系统的功率波动。

公开(公告)号：US5433112A

公开(公告)日：1995-07-18

申请号：US952979

申请日：1992-09-29

Applicant: Luc Piche ,  Andre Hamel ,  Richard Gendron ,  Michel Dumoulin ,  Jacques Tatibouet

Inventor： Luc Piche ,  Andre Hamel ,  Richard Gendron ,  Michel Dumoulin ,  Jacques Tatibouet

IPC: G01N29/024 ,  G01N29/032 ,  G01N29/18 ,  G01N29/20

CPC classification number: G01N29/032 ,  G01N29/024 ,  G01N2291/022 ,  G01N2291/0252 ,  G01N2291/0421 ,  G01N2291/102

Abstract: A method and apparatus for ultrasonically characterizing a polymer melt flowing in a predetermined direction between two opposed parallel surfaces spaced from one another to define a gap filled with polymer are disclosed. Ultrasonic pulses are propagated through the polymer melt between the two surfaces in a direction normal to the direction of flow for interaction with the polymer, the ultrasonic pulses having a duration such as to prevent successive echoes from overlapping with one another while reverberating between the two surfaces. The time delay between two echoes exiting from the polymer melt and generated from each pulse having interacted with the polymer is continuously monitored while simultaneously monitoring amplitude variations of the two echoes, to provide output signals representative of ultrasonic velocity and attenuation in the polymer melt. These output signals are processed to obtain data comprising ultrasonic velocity and attenuation values measured simultaneously as a function of time. The data is then processed to derive quantitative information relating to viscoelastic properties, structure or composition of the polymer, which can be used as input data in a closed-loop process control system.

Abstract translation: 公开了一种用于超声波表征在预定方向上流动的聚合物熔体彼此间隔开的两个相对平行表面以限定填充有聚合物的间隙的方法和装置。 超声波脉冲沿着垂直于流动方向的方向在两个表面之间通过聚合物熔体传播，以与聚合物相互作用，超声波脉冲具有持续时间，以防止连续回波彼此重叠，同时在两个表面之间混响 。 连续地监测从聚合物熔体排出并从与聚合物相互作用的每个脉冲产生的两个回波之间的时间延迟，同时监测两个回波的振幅变化，以提供表示聚合物熔体中的超声波速度和衰减的输出信号。 处理这些输出信号以获得包括作为时间的函数同时测量的超声波速度和衰减值的数据。 然后处理数据以获得与聚合物的粘弹性质，结构或组成有关的定量信息，其可以用作闭环过程控制系统中的输入数据。

公开(公告)号：US5372042A

公开(公告)日：1994-12-13

申请号：US842364

申请日：1992-05-12

Applicant: David Jarman ,  Bahram Farahbakhsh ,  Ralph Herzig

Inventor： David Jarman ,  Bahram Farahbakhsh ,  Ralph Herzig

IPC: G01N29/04 ,  G01N29/06 ,  G01N29/11 ,  G01N29/26 ,  G01N29/28 ,  G01N29/08 ,  G01N29/20

CPC classification number: G01N29/26 ,  G01N29/0609 ,  G01N29/11 ,  B29C65/02 ,  B29C65/8292 ,  B29C66/53461 ,  B29L2031/712 ,  G01N2291/0226 ,  G01N2291/02854 ,  G01N2291/048 ,  G01N2291/106 ,  G01N2291/2695

Abstract: A method for determining bond integrity of a sealed package has a lid bonded to a container rim by detecting flaws in the bond between the lid and the container. The method comprises: i) positioning the container rim between an ultrasonic transmitter system and an ultrasonic receiver system; ii) ultrasonically coupling the transmitter system and the receiver system to the container rim; iii) transmitting ultrasound waves from the transmitter system through the container rim to the receiver system; iv) generating a signal representative of the ultrasound waves received by the receiver system; and v) analyzing the signal for predetermined signal characteristics representative of a flaw in the bond to identify a flawed package seal.

Abstract translation: PCT No.PCT / CA90 / 00314 Sec。 371日期：1992年5月12日 102（e）日期1992年5月12日PCT提交1990年9月21日PCT公布。 出版物WO91 / 05250 PCT 日本1991年4月18日。用于确定密封包装的粘合完整性的方法具有通过检测盖和容器之间的结合中的缺陷而结合到容器边缘的盖。 该方法包括：i）将容器边缘定位在超声波发射器系统和超声波接收器系统之间; ii）将发射机系统和接收机系统超声波耦合到容器边缘; iii）从发射机系统通过容器边缘向接收机系统发送超声波; iv）产生代表由接收机系统接收的超声波的信号; 以及v）分析所述信号以获得代表所述接合中的缺陷的预定信号特征以识别有缺陷的封装密封件。

公开(公告)号：US07036376B2

公开(公告)日：2006-05-02

申请号：US10469463

申请日：2002-02-12

Applicant: Volker Arndt

Inventor： Volker Arndt

IPC: G01N29/20 ,  B23K11/25

CPC classification number: G01N29/07 ,  B23K11/257 ,  G01N29/38 ,  G01N29/40 ,  G01N2291/011 ,  G01N2291/048 ,  G01N2291/102 ,  G01N2291/2672 ,  G01S15/8913

Abstract: A welding system includes a device for evaluating an ultrasonic signal during a welding process. The device has a meassured value evaluation unit that, in normal operation, evaluates at least one measurement signal that is derived from an ultrasonic signal and is located inside a measurement window. A mechanism for establishing the measurement window is provided, which establishes the measurement window according to a measurement signal that is received in a calibration operation.

Abstract translation: 焊接系统包括用于在焊接过程期间评估超声波信号的装置。 该装置具有测量值评估单元，其在正常操作中评估从超声波信号导出并且位于测量窗口内的至少一个测量信号。 提供了建立测量窗口的机构，其根据在校准操作中接收的测量信号来建立测量窗口。

公开(公告)号：US06931930B2

公开(公告)日：2005-08-23

申请号：US10273179

申请日：2002-10-18

Applicant: Siegfried Reck

Inventor： Siegfried Reck

IPC: B60G17/00 ,  B60G17/019 ,  F16F9/05 ,  G01L11/06 ,  G01S7/521 ,  G01S15/02 ,  G01S15/88 ,  G01N29/18 ,  G01N29/20

CPC classification number: B60G17/01933 ,  B60G2204/111 ,  B60G2400/252 ,  B60G2401/176 ,  F16F9/05 ,  F16F9/052 ,  F16F2230/08 ,  G01L11/06 ,  G01N2291/02872 ,  G01S7/521 ,  G01S15/025 ,  G01S15/88 ,  G01S2007/52014

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06880403B1

公开(公告)日：2005-04-19

申请号：US10070379

申请日：2000-08-28

Applicant: Takashi Shimada ,  Kanji Matsuhashi

Inventor： Takashi Shimada ,  Kanji Matsuhashi

IPC: G01M7/00 ,  G01N3/00 ,  G01N3/02 ,  G01N3/06 ,  G01N3/32 ,  G01N3/40 ,  G01N29/04 ,  G01N29/42 ,  G01N29/46 ,  G01N33/38 ,  G01N29/20

CPC classification number: G01N29/46 ,  G01M7/00 ,  G01N3/32 ,  G01N3/405 ,  G01N29/045 ,  G01N29/42 ,  G01N33/383 ,  G01N2203/0039 ,  G01N2203/0062 ,  G01N2203/0284 ,  G01N2203/0617 ,  G01N2291/015 ,  G01N2291/0232 ,  G01N2291/02827 ,  G01N2291/102

Abstract: An internal condition of a concrete structure is objectively evaluated irrespective of surrounding noise or the shape of a hammer, by placing a vibration sensor in direct contact with a measuring surface so as to directly convert a vibration generated on the measuring surface into a corresponding voltage without the intervention of a medium such as air thereby to quantify the vibration generated on the measuring surface concerned. A structure diagnosis apparatus of the present invention includes a vibration unit for generating an elastic wave in a measuring object of a concrete structure, a vibration detector adapted to be placed in contact with a surface of the measuring object for detecting a component in a predetermined frequency range of an elastic vibration generated on the surface of the measuring object by the vibration unit; and a display device for displaying a maximum amplitude of an output signal of the vibration detector.

Abstract translation: 通过将振动传感器与测量表面直接接触，直接将测量表面上产生的振动直接转换成相应的电压，而不用考虑周围的噪声或锤的形状，客观地评估混凝土结构的内部状态，而不会 诸如空气的介质的干预，从而量化在相关测量表面上产生的振动。 本发明的结构诊断装置包括：振动单元，用于在混凝土结构的测量对象物中产生弹性波;振动检测器，适于与测量对象的表面接触，用于检测预定频率的分量 通过振动单元在测量对象的表面上产生的弹性振动的范围; 以及用于显示振动检测器的输出信号的最大振幅的显示装置。