公开(公告)号：US20040194549A1

公开(公告)日：2004-10-07

申请号：US10485264

申请日：2004-02-10

发明人： Rene Noel

IPC分类号： G01M017/007 ,  G01P003/36 ,  G01N029/00 ,  G01N029/14 ,  G01P001/12

CPC分类号： B60R11/02 ,  H04R29/00 ,  H04R29/001

摘要： A system for detecting a sound level of vehicles comprising sensor units for detecting vehicles on a road and for measuring a sound level of a detected vehicle. A data processing unit is connected to the sensor units and has an identification recorder for operating the system by recording an identification of the vehicle detected if the sound level is above a given value.

摘要翻译： 一种用于检测车辆声级的系统，包括用于检测道路上的车辆的传感器单元和用于测量检测到的车辆的声级的系统。 数据处理单元连接到传感器单元，并且具有识别记录器，用于通过记录在声级高于给定值的情况下检测到的车辆的识别来操作系统。

公开(公告)号：US20040193376A1

公开(公告)日：2004-09-30

申请号：US10479739

申请日：2004-04-30

发明人： Pedro Rodriguez Gobernado ,  Francis Fleurat-Lessard ,  Jose Villamayor ,  Bernard Sautereau ,  Giuseppe Brioni ,  Jean Gondolo ,  Bernard Tomasini

IPC分类号： G01H003/08 ,  G01N029/14

CPC分类号： G01N29/4427 ,  A01M1/026 ,  G01N29/14 ,  G01N29/46 ,  G01N2291/02458 ,  G01V1/001

摘要： A method and a device for detection, classification and densimetric quantification of grain-eating insects, of one or several families of insects simultaneously present, in stocks of cereals and the like, which includes detecting insects through noises and sound and/or infrasonic vibrations emitted by the insects. It also includes carrying out the following operations: recording the real noises in the stock, eliminating known spurious noises, detecting on the resulting envelope energy curve windows corresponding to energy peaks and determining therefrom the mean frequency, the spectral width and the global energy, comparing the mean frequency and the width of each of the windows to that of windows with similar known and listed characteristics, so as to operate a taxonomic classification, finally, comparing the mean frequency and the global energy of each of the windows, to those of windows with known and listed characteristics, to operate a densimetric quanitification.

摘要翻译： 用于谷物等的同时存在的一个或几个昆虫家族的食用昆虫的检测，分类和密度定量的方法和装置，其包括通过发出的噪声和声和/或非正常振动来检测昆虫 由昆虫。 它还包括执行以下操作：记录库存中的实际噪声，消除已知的杂散噪声，检测对应于能量峰值的所得到的包络能量曲线窗口，并从中确定平均频率，频谱宽度和全局能量，比较 每个窗口的平均频率和宽度与具有相似已知和列出的特征的窗口的平均频率和宽度，以便操作分类分类，最后将每个窗口的平均频率和全局能量与窗口的平均频率和全局能量进行比较 具有已知和列出的特征，以操作密度量化。

公开(公告)号：US20040211245A1

公开(公告)日：2004-10-28

申请号：US10829956

申请日：2004-04-23

发明人： Collin Watson ,  Gary Low

IPC分类号： G01M003/24 ,  G01N029/14

CPC分类号： G01N29/14 ,  G01M3/24

摘要： A system for testing the integrity of liners for fluid storage tanks prior to filling the tanks with fluid and placing the tanks into service includes a plurality of highly fluid transmissible paths of highly transmissible structure such as geogrid arranged in the interstitial space between the tank and the liner. Vacuum applied to the interstitial space causes fluid to flow through the breaches or leaks in the liner and into the interstitial space. Acoustical equipment is used to detect the sounds of the fluid flow to determine whether the liner and the liner seals are intact.

摘要翻译： 用于在流体储存罐填充箱体之前测试流体储罐的衬套的完整性的系统包括多个高度可传输的高度可传导的结构的高度流体的可传递路径，例如布置在罐和槽之间的间隙空间中的土工格栅 衬垫。 施加到间隙空间的真空使得流体流过衬套中的破裂或泄漏并进入间隙空间。 声学设备用于检测流体流动的声音，以确定衬管和衬垫密封件是否完好无损。

公开(公告)号：US20040003662A1

公开(公告)日：2004-01-08

申请号：US10449655

申请日：2003-05-30

申请人： The Johns Hopkins University

发明人： Shant Kenderian ,  B. Boro Djordjevic ,  Robert E. Green JR. ,  Donatella Cerniglia

IPC分类号： G01N029/14

CPC分类号： G01N29/46 ,  G01N29/12 ,  G01N29/2418 ,  G01N2291/014 ,  G01N2291/02854 ,  G01N2291/0421 ,  G01N2291/0422 ,  G01N2291/0423 ,  G01N2291/044 ,  G01N2291/106 ,  G01N2291/2623

摘要： Formed Laser Sources (FLS) using pulsed laser light for generation of ultrasonic stress waves are combined with air-coupled detection of ultrasound to provide for the hybrid non-contact, dynamic and remote ultrasonic testing of structural materials, especially railroad tracks. Using this hybrid technique, multimode and controlled frequency and wavefront surface acoustic waves, plate waves, guided waves, and bulk waves are generated to propagate on and within the rail tracks. The non-contact, remote nature of this methodology enables high-speed, full access inspections of rail tracks. The flexibility and remote nature of this methodology makes possible the detection of critical cracks that are not easy, or impossible to detect, with current inspection techniques available to the railroad industry. For purpose of field testing, the equipment of the present invention can be located above the top surface of the rail. Cracks of unfavorable positions and orientations at hard to reach geometrical locations can be detected with this Laser-Air Hybrid Ultrasonic approach. By analog amplification, gating, digital signal capture, signal processing and digital data analysis and processing, such rail testing can be performed totally automated.

摘要翻译： 使用脉冲激光生成超声波应力波的成像激光源（FLS）与超声波的空气耦合检测相结合，为结构材料，特别是铁路轨道的混合非接触式，动态和远程超声波测试提供了参考。 使用这种混合技术，产生多模和受控频率和波前表面声波，板波，导波和体波，以在轨道上和轨道内传播。 这种方法的非接触式远程特性使得能够高速，全面地检查轨道。 该方法的灵活性和远程性质使得可以利用铁路行业现有的检测技术来检测不容易或不可能检测到的关键裂纹。 为了现场测试的目的，本发明的设备可以位于轨道的顶表面之上。 使用该激光 - 空气混合超声波方法可以检测难以达到几何位置的不利位置和方向的裂纹。 通过模拟放大，门控，数字信号捕获，信号处理和数字数据分析和处理，这种轨道测试可以完全自动执行。

公开(公告)号：US20030126928A1

公开(公告)日：2003-07-10

申请号：US10262332

申请日：2002-10-01

申请人： Siemens Westinghouse Power Corporation

发明人： Ronald T. Harrold ,  Zal N. Sanjana

IPC分类号： G01N029/14 ,  G01N029/08

CPC分类号： G01N29/14 ,  G01N29/228 ,  G01N2291/015 ,  G01N2291/0423 ,  G01N2291/048

摘要： A method of monitoring the condition of a thermal barrier coating on a turbine blade or vane during operation of the turbine is provided. The method includes providing a means for receiving acoustic output of the blade or vane during operation of the turbine and monitoring the acoustic output over time, to determine the condition of the thermal barrier coating on the blade or vane. The acoustic output arises from a force on the blade or vane, such as that due to impact of particles, a pulse of gas pressure or constant gas flow. An apparatus employing the above method for monitoring the condition of the thermal barrier coating during operation of the turbine, is also provided.

摘要翻译： 提供了一种在涡轮机运行期间监测涡轮机叶片或叶片上的隔热涂层的状况的方法。 该方法包括提供一种用于在涡轮运行期间接收叶片或叶片的声输出并随时间监视声输出的装置，以确定叶片或叶片上的热障涂层的状况。 声输出来自叶片或叶片上的力，例如由于颗粒的撞击，气体压力的脉冲或恒定的气体流动引起的。 还提供了一种采用上述方法监测涡轮机操作期间热障涂层状况的装置。

公开(公告)号：US20040261531A1

公开(公告)日：2004-12-30

申请号：US10608214

申请日：2003-06-30

申请人： General Electric Canada Inc.

发明人： Andre Coutu ,  Stuart Thomas Coulson ,  Daniel Proulx

IPC分类号： G01N029/14

CPC分类号： G01N29/14 ,  G01N29/4445 ,  G01N2291/2693

摘要： A method and system for analyzing hydraulic turbine noise vibrations involves recording the noise of a hydraulic turbine either during operation or intentionally produced for testing from a remote site. A standard laptop computer is utilized by personnel at the turbine site to record the sound at different power outputs as specified by turbine experts with a standard Windows sound recording program that produce sound files. The sound files are compressed at the site and sent to the expert office location via Email. Once received at the expert location, the sound files are uncompressed and analyzed immediately by the turbine experts without the experts having had to travel to the remote site. The analysis is done with a software sound analyzer. The analyzed signals are used to diagnose the machine and address any unusual recorded noise.

摘要翻译： 用于分析水轮机噪声振动的方法和系统包括在操作期间记录水力涡轮机的噪声或者有意地从远程站点进行测试。 涡轮机场所的人员利用标准的笔记本电脑来记录不同功率输出的声音，如涡轮专家所指定的，具有产生声音文件的标准Windows录音程序。 声音文件在现场压缩并通过电子邮件发送到专家办公室。 一旦在专家位置收到，声音文件将被涡轮专家解压缩并立即分析，无需专家不得不前往远程站点。 使用软件声音分析仪进行分析。 分析的信号用于诊断机器并解决任何异常记录的噪声。

公开(公告)号：US20040237654A1

公开(公告)日：2004-12-02

申请号：US10484887

申请日：2004-07-09

发明人： Vincent Savall ,  Jean-Pierre Roux

IPC分类号： G01N029/14

CPC分类号： B01D65/102 ,  G01N15/082 ,  G01N2015/084

摘要： The invention relates to a method of controlling the integrity of hollow fibre filtration units and of detecting leaks through a wholly or partially ruptured fibre. The inventive method is characterised in that it consists in: nullemitting a noise or audible signal using an emitter located on one side of the membranes of the filtration units; nulldetecting the noise or audible signal emerging from a ruptured fibre on the other side of the membranes, regardless of whether or not a fluid is passing through said fibre; nullamplifying the signal-noise thus obtained; nulland comparing the resulting amplified signal to a threshold noise level in the same frequency range.

摘要翻译： 本发明涉及一种控制中空纤维过滤装置的完整性并检测通过完全或部分破裂的纤维的泄漏的方法。 本发明的方法的特征在于它包括：使用位于过滤单元的膜的一侧上的发射器来发出噪声或听觉信号; - 检测在膜的另一侧从破裂的纤维出现的噪声或听觉信号，而不管流体是否通过所述纤维; - 放大如此获得的信号噪声; 并将所得到的放大信号与相同频率范围内的阈值噪声电平进行比较。

公开(公告)号：US20030056595A1

公开(公告)日：2003-03-27

申请号：US09965715

申请日：2001-09-27

申请人： Siemens Westinghouse Power Corporation

发明人： Ronald T. Harrold ,  Zal N. Sanjana ,  Brian D. Ottinger ,  Lawrence L. Ross

IPC分类号： G01N029/14 ,  G01M001/22 ,  G01M013/00

CPC分类号： F01D21/045 ,  G01N29/14 ,  G01N29/228 ,  G01N29/2462 ,  G01N2291/044

摘要： A foreign object impact sensor for use with combustion turbines utilizes a passive acoustic waveguide within the turbine to receive acoustic signals from foreign object impact. The magnitude of these signals is displayed and or stored using a lighted display or other suitable indicating device. The information is also recorded and stored, so that a spectrum signature can be obtained from Fourier analysis.

公开(公告)号：US20040107773A1

公开(公告)日：2004-06-10

申请号：US10716077

申请日：2003-11-18

发明人： Harold L. Dunegan

IPC分类号： G01N029/14 ,  G01H011/08

CPC分类号： G01N29/14 ,  G01H1/00 ,  G01N29/2437 ,  G01N29/2462 ,  G01N29/42 ,  G01N2291/0422 ,  G01N2291/106

摘要： Acoustic emission apparatus methods for detecting termite infestation including a probe and signal processing circuitry. The probe includes an piezoelectric transducer and is adapted to be inserted into a bore-hole of the wood under test. The waveguide intersects the high frequency extensional and shear waves produced by feeding and movement of termite propagating along the grain of the wood. The transducer output signal is filtered through high (HF) and low (LF) bandbase filters. Selected HF/LF values produce a signal which substantially eliminates extraneous Out-Of-Plane acoustic noise. One embodiment includes a multiple channel multiplexing system for monitoring insect treatment processes in structures such as homes and other buildings. The real time data is used to determine the effectiveness of treatments as well as the time required to produce an effective treatment for termite eradication.

摘要翻译： 用于检测白蚁侵袭的声发射装置方法，包括探针和信号处理电路。 探头包括压电换能器，并适于插入被测木材的钻孔中。 波导与通过沿木材颗粒传播的白蚁进食和运动产生的高频拉伸和剪切波相交。 传感器输出信号通过高（HF）和低（LF）滤波器滤波。 所选择的HF / LF值产生基本上消除了外部超平面声学噪声的信号。 一个实施例包括用于在诸如家庭和其他建筑物的结构中监视昆虫处理过程的多路复用系统。 实时数据用于确定治疗的有效性以及产生有效治疗白蚁根除所需的时间。

公开(公告)号：US20040050164A1

公开(公告)日：2004-03-18

申请号：US10380409

申请日：2003-07-16

发明人： Daniel Bates

IPC分类号： G01N029/14 ,  G01N025/72

CPC分类号： G01N29/345 ,  G01N25/72 ,  G01N29/045 ,  G01N29/40 ,  G01N33/20 ,  G01N2021/1731 ,  G01N2291/014 ,  G01N2291/0231 ,  G01N2291/106 ,  G01N2291/2694

摘要： Apparatus for non-destructively testing material to enable detection of any damage sites, comprising means for generating localised heating at any damage site in the material, and means for imaging the material to enable detection of any localised heating at the damage site.

摘要翻译： 用于非破坏性地测试材料以使得能够检测任何损伤部位的装置，包括用于在所述材料中的任何损伤部位产生局部加热的装置，以及用于使材料成像以使得能够检测损伤部位的任何局部加热的装置。