公开(公告)号：US20160253850A1

公开(公告)日：2016-09-01

申请号：US15054974

申请日：2016-02-26

申请人： Hella KGaA Hueck & Co.

发明人： Klaas Hauke BAUMGAERTEL

IPC分类号： G07C5/08 ,  G01N29/44 ,  B60Q9/00 ,  G01N29/04 ,  G10L25/21 ,  G10L25/48

CPC分类号： G01N29/44 ,  B60C9/00 ,  B60Q9/00 ,  G01N29/14 ,  G01N29/42 ,  G01N29/4454 ,  G01N2291/0232 ,  G01N2291/0289

摘要： In a method for registering at least one damage event on a glass surface, particularly a windscreen of a motor vehicle, wherein at least one structure-borne sound signal is registered by a sensor device and the registered structure-borne sound signal is forwarded to at least one analysis unit, it is provided as essential to the invention that a first signal component of the registered structure-borne sound signal is analysed, that further analysis is not begun until a first amplitude of the registered structure-borne sound signal has decayed, that the curve of the registered structure-borne sound signal is examined for the existence of signal jumps, and that conclusions may be drawn regarding at least one damage incident on the glass surface from the existend of at least one signal jump.

摘要翻译： 在用于在玻璃表面，特别是机动车辆的挡风玻璃上登记至少一个损坏事件的方法中，其中由传感器装置登记至少一个结构声音信号，并将注册的结构声音信号转发到 至少一个分析单元，为了对本发明提供注册的结构声音信号的第一信号分量进行分析，提供了进一步的分析，直到注册的结构声音信号的第一幅度衰减， 检查注册的结构声音信号的曲线是否存在信号跳跃，并且可以从至少一个信号跳跃的存在引起对玻璃表面入射的至少一次损伤的结论。

公开(公告)号：US20160047717A1

公开(公告)日：2016-02-18

申请号：US14782372

申请日：2013-04-05

申请人： AKTIEBOLAGET SKF

发明人： Gerard MCGOOGAN

IPC分类号： G01M13/04 ,  G01N29/14

CPC分类号： G01M13/045 ,  G01N29/14 ,  G01N29/42 ,  G01N29/4454 ,  G01N2291/0258 ,  G01N2291/2696 ,  G05B23/0283

摘要： A method for processing data obtained from a condition monitoring system, the method including steps of (a) obtaining an Acoustic Emission time waveform from at least one sensor and (b) digitally demodulating the Acoustic Emission time waveform.

摘要翻译： 一种用于处理从条件监测系统获得的数据的方法，所述方法包括以下步骤：（a）从至少一个传感器获得声发射时间波形，以及（b）数字解调声发射时间波形。

公开(公告)号：US20160011153A1

公开(公告)日：2016-01-14

申请号：US14631184

申请日：2015-02-25

申请人： Industry Foundation of Konyang University

发明人： Gwang Hee Heo ,  Joon Ryong Jeon

IPC分类号： G01N29/42 ,  G01N29/04 ,  G01N29/44

CPC分类号： G01N29/42 ,  G01N29/14 ,  G01N29/4472 ,  G01N2291/0232 ,  G01N2291/0258

摘要： Provided is a wireless measuring system based on a cochlea principle for acquiring a dynamic response of a constructional structure and capable of monitoring and controlling health of the constructional structure in real time by acquiring the dynamic response of the constructional structure in which irregular random vibrations occur, effectively compressing the acquired data, wirelessly transmitting a signal, and analyzing the transmitted signal.

摘要翻译： 提供了一种基于耳蜗原理的无线测量系统，用于获取结构结构的动态响应，并且能够通过获取发生不规则随机振动的结构结构的动态响应来实时监测和控制结构结构的健康， 有效地压缩所获取的数据，无线发送信号和分析发送的信号。

公开(公告)号：US20150053005A1

公开(公告)日：2015-02-26

申请号：US14388840

申请日：2013-03-13

申请人： The Lubrizol Corporation

发明人： Oliver Smith ,  Michael R. Sutton

IPC分类号： G01N29/44 ,  G01N29/04 ,  G01N29/42

CPC分类号： G01N29/4445 ,  G01N29/04 ,  G01N29/043 ,  G01N29/42 ,  G01N29/4409 ,  G01N29/46 ,  G01N2291/044 ,  G01N2291/102

摘要： Ultrasonic measurement apparatus 10 includes a transmitter 14 to transmit an ultrasonic signal 16 into an item 12. A receiver 18 receives echoes 20 from the item 12. The apparatus 10 measures the frequency spectrum of the echo 20 and makes a comparison with another frequency spectrum to extract information relating to a change in the item 12. For example, the item 12 may wear during use. A comparison of the frequency spectrum, with previous frequency spectra, allows changes of dimension of the item 12 to be identified. Changes in amplitudes of the frequency spectrum allow changes in roughness to be detected.

摘要翻译： 超声波测量装置10包括将超声信号16发送到项目12中的发射机14.接收机18从项目12接收回波20.设备10测量回波20的频谱，并与另一个频谱进行比较， 提取与项目12的改变有关的信息。例如，项目12可能在使用期间磨损。 频谱与以前的频谱的比较允许识别物品12的维度的变化。 频谱幅度的变化允许检测粗糙度的变化。

公开(公告)号：US08960005B2

公开(公告)日：2015-02-24

申请号：US13712461

申请日：2012-12-12

申请人： Georgia Tech Research Corporation

发明人： Massimo Ruzzene ,  Matteo Senesi ,  Buli Xu

IPC分类号： G01N9/04 ,  G01N29/12 ,  G01N29/24 ,  G01N29/26 ,  G01N29/42

CPC分类号： G01N29/12 ,  G01N29/245 ,  G01N29/262 ,  G01N29/42 ,  G01N2291/0258 ,  G01N2291/106

摘要： Frequency-steerable acoustic transducers (FSATs) that allow directional generation or sensing of waves propagating in two-dimensional domains. Directionality is the result of the spatial filtering effect produced by the characteristic shape of the sensing surface. A wavenumber spiral FSAT (WS-FSAT) maps the direction of wave sensing in the [0°, 180°] range to a specific frequency component in the spectrum of the received signal. The use of a wavenumber spiral FSAT operating in sensing mode can be used for the localization of broadband acoustic events. One configuration includes a broadband source generating guided elastic waves in an isotropic plate. The WS-FSAT records the plate response and defines the source location through a time-frequency analysis of the received signal. The frequency selective response of the WS-FSAT directly maps the dominant component of the received signal to the direction of arrival of the incoming wave, thus greatly facilitating the source localization procedure.

摘要翻译： 频率可控的声学换能器（FSAT），允许定向生成或感测在二维域中传播的波。 方向性是由感测表面的特征形状产生的空间滤波效应的结果。 波数螺旋FSAT（WS-FSAT）将[0°，180°]范围内的波感测方向映射到接收信号频谱中的特定频率分量。 使用在感测模式下操作的波数螺旋FSAT可用于宽带声学事件的定位。 一种配置包括在各向同性板中产生引导弹性波的宽带源。 WS-FSAT通过对接收到的信号的时间 - 频率分析来记录板响应并定义源位置。 WS-FSAT的频率选择响应直接将接收信号的主要分量映射到入波的到达方向，从而极大地促进了源定位过程。

公开(公告)号：US20140311244A1

公开(公告)日：2014-10-23

申请号：US14319342

申请日：2014-06-30

申请人： UNIVERSITY OF EXETER

发明人： Peter Robert Armitage

IPC分类号： G01N29/04

CPC分类号： G01N29/04 ,  G01N29/043 ,  G01N29/12 ,  G01N29/348 ,  G01N29/42 ,  G01N29/4445 ,  G01N2291/014 ,  G01N2291/106 ,  G01N2291/2694

摘要： Device and method for detecting a defect in a workpiece with a broadband transducer (10), a driving circuit connected to the transducer to operate the transducer in a actuator mode, a signal output circuit connectable to operate in a sensor mode, a control for selectively connecting the transducer to the driving circuit or signal output circuit wherein the driving circuit includes at least a pair of oscillators for generating signals of at least frequencies F1 and F2 and a summer for summing the signals to provide a driving circuit for the transducer.

摘要翻译： 用于使用宽带传感器（10）检测工件中的缺陷的装置和方法，连接到换能器以在致动器模式下操作换能器的驱动电路，可连接以传感器模式操作的信号输出电路，用于选择性地 将所述换能器连接到所述驱动电路或信号输出电路，其中所述驱动电路至少包括一对用于产生至少频率F1和F2的信号的振荡器，以及用于对所述信号求和以提供所述换能器的驱动电路的加法器。

公开(公告)号：US08738302B2

公开(公告)日：2014-05-27

申请号：US13196557

申请日：2011-08-02

申请人： Ramesh B. Tirumala ,  Raymond R. Haack ,  William E. Smith, Jr. ,  Lee G. Mueller

发明人： Ramesh B. Tirumala ,  Raymond R. Haack ,  William E. Smith, Jr. ,  Lee G. Mueller

IPC分类号： G06F19/00 ,  F25C1/12

CPC分类号： F25C1/12 ,  F25C2600/04 ,  G01N29/11 ,  G01N29/42 ,  G01N2291/0251

摘要： A method that includes: (i) detecting an acoustic wave that is propagating through a body of water, as the body of water is being frozen on a structure, thus yielding a detected acoustic wave; (ii) extracting, from the detected acoustic wave, (a) a frequency component thereof, and (b) a magnitude of the frequency component; and (iii) removing the body of water from the structure when the magnitude exceeds a threshold value.

摘要翻译： 一种方法，包括：（i）当水体被冻结在结构上时，检测正在传播通过水体的声波，从而产生检测到的声波; （ii）从检测到的声波中提取（a）其频率分量，和（b）频率分量的大小; 以及（iii）当所述大小超过阈值时，从所述结构中去除所述水体。

公开(公告)号：US20140125970A1

公开(公告)日：2014-05-08

申请号：US14152778

申请日：2014-01-10

申请人： GasPorOx AG

发明人： Sune Svanberg ,  Anders Johnsson ,  Märta Lewander ,  Annika Olsson

IPC分类号： G01N21/59 ,  G01N21/17

CPC分类号： G01N29/036 ,  G01N21/1702 ,  G01N21/3504 ,  G01N21/59 ,  G01N29/42 ,  G01N2291/021

摘要： A method and apparatus are disclosed for assessment of a sealed package. Light is emitted from a narrow-band laser source towards said package from outside of said package. An absorption signal of said light scattered in said package is measured, wherein said absorption is caused by said at least one gas when said light is scattered and travels in said sealed package. Measuring is made outside of said package, whereby said assessment is non-intrusive with regard to said package. It is determined if a deviation exists from a predetermined, expected gas composition and/or concentration of said at least one gas within said sealed package based on said measured absorption signal. Thus sealing of said package for said gas is detected.

摘要翻译： 公开了用于评估密封包装的方法和装置。 光从窄带激光源从所述封装的外部朝向所述封装发射。 测量在所述包装中散射的所述光的吸收信号，其中当所述光散射并在所述密封包装中行进时，所述吸收是由所述至少一种气体引起的。 在所述包装之外进行测量，由此所述评估对于所述包装是不侵入的。 基于所测量的吸收信号确定是否存在来自所述密封包装内的所述至少一种气体的预定的预期气体成分和/或浓度的偏差。 因此，检测用于所述气体的所述包装的密封。

公开(公告)号：US08371170B2

公开(公告)日：2013-02-12

申请号：US12866974

申请日：2009-02-12

申请人： Arata Masuda

发明人： Arata Masuda

IPC分类号： G01N29/14 ,  G01H1/00

CPC分类号： G01M5/0033 ,  G01M5/0066 ,  G01N29/09 ,  G01N29/42 ,  G01N29/4427 ,  G01N29/4445 ,  G01N29/4454 ,  G01N2291/0258

摘要： In the diagnosis of a structure, at least one electromechanical transducer is fixed to a structure as an object of diagnosis and is driven with an alternating voltage of a constant amplitude, and a current flowing through the at least one electromechanical transducer is measured. Next, high frequency components around a driving frequency of the electromechanical transducer are separated from a signal of the current. Next, modulation information due to a damage is extracted from amplitude and/or phase demodulation of the high frequency components. Then a damage index is evaluated based on the modulation information. Thus, structural health can be diagnosed with use of at least one electromechanical transducer, without baseline data, in one measurement.

摘要翻译： 在结构诊断中，将至少一个机电换能器固定到作为诊断对象的结构，并且用恒定振幅的交流电压驱动，并且测量流过该至少一个机电换能器的电流。 接下来，机电换能器的驱动频率周围的高频分量与电流信号分离。 接下来，从高频分量的幅度和/或相位解调中提取由于损伤引起的调制信息。 然后根据调制信息评估损伤指数。 因此，在一次测量中，可以使用至少一个机电换能器（无基线数据）来诊断结构健康。

公开(公告)号：US20130026882A1

公开(公告)日：2013-01-31

申请号：US13557378

申请日：2012-07-25

申请人： Hideaki YAMADA ,  Kazuhiko Kano

发明人： Hideaki YAMADA ,  Kazuhiko Kano

IPC分类号： H01L41/04

CPC分类号： H01L41/1132 ,  G01N29/2462 ,  G01N29/38 ,  G01N29/42 ,  G01N2291/0423 ,  H03H9/02622 ,  H03H9/058 ,  H03H9/0585

摘要： In a SAW device, a first area placed at a surface of a measurement subject directly under a propagation portion is fixed to the measurement subject, and a second area placed at the surface of the measurement subject directly under both a drive electrode and a reflector is not fixed to the measurement subject. When a strain is generated in the measurement subject, a strain is generated only in the propagation portion, and a phase change is generated in a surface acoustic wave reflected by the reflector. Because the phase change is hardly affected by a temperature change, the strain of the measurement subject can be measured based on the phase change. Because a resonant frequency of the SAW device is changed by the temperature change, but is not affected by the strain of the measurement subject, a temperature can be measured based on a resonant frequency change.

摘要翻译： 在SAW器件中，将直接位于传播部分的测量对象的表面的第一区域固定在测定对象上，在测量对象的表面直接位于驱动电极和反射体的下方的第二区域是 没有固定在测量对象上。 当在测量对象中产生应变时，仅在传播部分中产生应变，并且在由反射器反射的表面声波中产生相变。 由于相变几乎不受温度变化的影响，所以测量对象的应变可以基于相位变化来测量。 由于SAW器件的谐振频率由于温度变化而变化，而是不受测量对象的应变的影响，所以可以基于谐振频率变化来测量温度。