公开(公告)号：US20060123910A1

公开(公告)日：2006-06-15

申请号：US11352610

申请日：2006-02-13

申请人： Brian Cunningham ,  John Williams

发明人： Brian Cunningham ,  John Williams

IPC分类号： G01N29/00

CPC分类号： G01N29/4436 ,  G01N5/04 ,  G01N5/045 ,  G01N29/022 ,  G01N29/228 ,  G01N2291/014 ,  G01N2291/0212 ,  G01N2291/0228 ,  G01N2291/0256 ,  G01N2291/02845 ,  G01N2291/0427

摘要： An apparatus for measuring the mass of a substance includes a sensor having a membrane layer, the membrane for receiving the substance thereon, an oscillator device for driving the membrane at a reference resonant frequency, a frequency detection device for determining a change in the reference resonant frequency caused by the presence of the substance on the membrane, and a mass determining device for determining the mass of the substance, the change in the reference resonant frequency being indicative of the mass of the substance.

摘要翻译： 用于测量物质质量的装置包括具有膜层的传感器，用于在其上接收物质的膜，用于以参考共振频率驱动膜的振荡器装置，用于确定参考共振的变化的频率检测装置 由物质在膜上的存在引起的频率，以及用于确定物质质量的质量确定装置，参考共振频率的变化指示物质的质量。

公开(公告)号：US07043989B2

公开(公告)日：2006-05-16

申请号：US10880074

申请日：2004-06-29

申请人： Van Zyl Brink ,  Ismet Canbulat ,  Johann Haarhoff

发明人： Van Zyl Brink ,  Ismet Canbulat ,  Johann Haarhoff

IPC分类号： G01N29/04

CPC分类号： G01N29/4436 ,  E21D20/02 ,  G01N29/11 ,  G01N29/341 ,  G01N29/348 ,  G01N29/46 ,  G01N2291/015 ,  G01N2291/0234 ,  G01N2291/044 ,  G01N2291/2626

摘要： The invention concerns a method of testing the installation quality of a grouted anchor system comprising at least one tendon anchored by grout in a hole in a surrounding mass. The system typically includes a group of roof bolts (10, 12) each having a tendon (10.1, 10.2) anchored in a rock mass (22) by grout (14, 16). The method includes the steps of applying an acoustic signal to the system, detecting the acoustic response(s) of the tendon(s) and assessing the installation quality of the tendon(s) from an analysis of such response(s). The invention also includes apparatus for use in the method.

摘要翻译： 本发明涉及一种测试灌浆锚系统的安装质量的方法，该系统包括至少一个由灌浆锚定在周围块体的孔中的腱。 该系统通常包括一组屋顶螺栓（10,12），每个顶部螺栓（10,12）具有通过灌浆（14,16）锚固在岩体（22）中的腱（10.1,10.2）。 该方法包括以下步骤：从系统的分析应用声学信号到系统，检测肌腱的声学响应和评估腱的安装质量。 本发明还包括用于该方法的装置。

公开(公告)号：US20040216515A1

公开(公告)日：2004-11-04

申请号：US10466845

申请日：2003-07-21

发明人： Tatjana Anatoljevna Yakhno ,  Vladimir Grigorievich Yakhno ,  Ivan Ivanovich Shmeljov ,  Anatoly Gennadievich Sanin ,  Evgeny Valerievich Krotov ,  Yuri Yakovievich Brodsky

IPC分类号： G01N029/02

CPC分类号： G01N29/4436 ,  G01N11/16 ,  G01N29/022 ,  G01N2035/1046 ,  G01N2291/014 ,  G01N2291/015 ,  G01N2291/018 ,  G01N2291/022 ,  G01N2291/024 ,  G01N2291/02466 ,  G01N2291/0251 ,  G01N2291/0258 ,  G01N2291/0422 ,  G01N2291/0423 ,  G01N2291/0427 ,  G01N2291/048 ,  G01N2291/101

摘要： The present invention relates to physical chemistry and can be used for a quality test of liquids, in particular, multi-component liquid products, to ascertain the conformity of various process liquids, pharmaceutical preparations, foodstuffs, biological liquids to standard in pharmacology, food processing and chemical industries, and in medical diagnostics. The method of invention enables determining of the mechanical impedance within a drop (1) of test liquid having a specified volume, in the preferred embodiment, 5 mcl, placed on the surface of a piezoelectric resonator (3) of ultrasound frequencies, which provides for excitation of shear modes within drop (1) while it is drying up. The obtained time dependence of the mechanical impedance of drop (1) is used as the information parameter. This information parameter is rather sensitive to the state of the liquid-crystalline structure of multi-component liquids, therefore, comparing the obtained time dependence with the same data for the etalon specimen allows one to assess the composition of a multi-component liquid, test the quality of liquid products, for example, foodstuffs, assess the prospective effectiveness of medical treatment with various medical preparations through analysis of a biological liquid, etc. In the apparatus of invention, the mechanical impedance of test liquid is determined from the disbalance voltage of a bridge circuit (9) comprising a piezoelectric resonator of ultrasound frequencies (3), in preferred embodiments, from the amplitude and/or phase of the disbalance voltage, which ensures high accuracy of measurements.

摘要翻译： 本发明涉及物理化学，并且可以用于液体，特别是多组分液体产品的质量测试，以确定各种工艺液体，药物制剂，食品，生物液体与药理学标准，食品加工 化学工业和医疗诊断。 本发明的方法使得能够确定放置在超声频率的压电谐振器（3）的表面上的具有指定体积的测试液体的液滴（1）中的机械阻抗，该特定体积在优选实施例中为5mcl，其提供 在干燥期间在液滴（1）内激发剪切模式。 所获得的液滴（1）的机械阻抗的时间依赖性被用作信息参数。 该信息参数对多组分液体的液晶结构的状态相当敏感，因此，将获得的时间依赖性与标准具样品的相同数据进行比较允许评估多组分液体的组成，测试 液体产品的质量，例如食品，通过分析生物液体等来评估各种药物制剂的医疗前景效果。在本发明的装置中，测试液体的机械阻抗由不平衡电压 在优选实施例中，包括超声波频率（3）的压电谐振器的桥接电路（9），来自所述不平衡电压的幅度和/或相位，这确保了测量的高精度。

公开(公告)号：US20040214334A1

公开(公告)日：2004-10-28

申请号：US10421089

申请日：2003-04-23

申请人： Particle Measuring Systems, Inc.

发明人： Daniel Rodier ,  Scott Waisanen ,  Dale Griffin

IPC分类号： G01N033/18

CPC分类号： G01N29/4436 ,  G01N29/022 ,  G01N29/222 ,  G01N2291/0256 ,  G01N2291/0423 ,  G01N2291/0426 ,  Y10T436/11

摘要： A molecular contamination monitoring system includes a piezoelectric measurement sensor exposed to a molecular constituent to be measured; a piezoelectric reference sensor; and a filter for filtering said molecular constituent, the filter located between the reference sensor and the measurement environment. The reference sensor is exposed to the same ambient conditions of temperature, pressure and humidity as the measurement sensor. Alternatively, there may be a plurality of different reference sensors having different filters, or there may be a plurality of different measurement sensors.

摘要翻译： 分子污染监测系统包括暴露于待测分子成分的压电测量传感器; 压电参考传感器; 以及用于过滤所述分子成分的过滤器，位于参考传感器和测量环境之间的过滤器。 参考传感器暴露于与测量传感器相同的温度，压力和湿度环境条件下。 或者，可以存在具有不同滤波器的多个不同的参考传感器，或者可以存在多个不同的测量传感器。

公开(公告)号：US06745632B1

公开(公告)日：2004-06-08

申请号：US10453382

申请日：2003-06-03

申请人： Joseph Ernest Dryer ,  John David Lambert

发明人： Joseph Ernest Dryer ,  John David Lambert

IPC分类号： G01N2918

CPC分类号： G01N29/4436 ,  G01N29/024 ,  G01N29/348 ,  G01N29/4472 ,  G01N29/46 ,  G01N29/50 ,  G01N2291/02836

摘要： Embodiments of the invention provide an algorithm for enhancing the transit time measurement of an ultrasonic wave through a fluid, and criteria for evaluating the suitability for various waveforms with regard to noise rejection. The transit time calculation provides a greater noise immunity and accuracy than techniques used in the prior art, and allows a measure of weighting of dispersed signals with different arrival times. The transit time calculation utilizes either the transmitted signal or the measurement of a reference system, the calculation of the squared convolution of this signal with the received signal, and the calculation of the transit time from the time-weighted squared convolution signal over a suitable interval defined by the minimums of the squared convolution signal. In the case of dispersion where the arrival times are symmetrically displaced around a mean transit time, or if asymmetric dispersion is suitably within the main lobe, the calculation properly weights the composite signal. The symmetry of the calculated autocorrelation function predicts the accuracy of the algorithm, and deconvolution can be used to estimate the composition of the composite delay function in such cases.

摘要翻译： 本发明的实施例提供了一种用于增强通过流体的超声波的通过时间测量的算法，以及用于评估关于噪声抑制的各种波形的适用性的标准。 通过时间计算提供比现有技术中使用的技术更大的噪声抗扰度和精度，并且允许对具有不同到达时间的分散信号的加权的度量。 通行时间计算利用发射信号或参考系统的测量，该信号与接收信号的平方卷积的计算以及在适当间隔上的时间加权平方卷积信号的渡越时间的计算 由平方卷积信号的最小值定义。 在分散的情况下，到达时间围绕平均通过时间对称移位，或者如果非对称色散适当地在主波瓣内，则计算适当地加权复合信号。 计算的自相关函数的对称性预测了算法的准确性，并且在这种情况下可以使用去卷积来估计复合延迟函数的组成。

公开(公告)号：US06732587B2

公开(公告)日：2004-05-11

申请号：US10068255

申请日：2002-02-06

申请人： Peter W. Lorraine ,  Marc Dubois ,  Robert J. Filkins ,  Barbara Venchiarutti

发明人： Peter W. Lorraine ,  Marc Dubois ,  Robert J. Filkins ,  Barbara Venchiarutti

IPC分类号： G01N2904

CPC分类号： G01N29/50 ,  G01N29/11 ,  G01N29/4436 ,  G01N29/48 ,  G01N2291/0231 ,  G01N2291/0427 ,  G01N2291/044

摘要： Ultrasonic testing techniques may involve the measurement of ultrasonic waves from the tested part. These waves may reflect from surfaces of various layers within the part. Further, these waves may reflect from faults, defects, voids, fractures, and others. As such, the measured ultrasonic wave is a complex mix of these reflections. One method for detecting flaws, defects, and others may be to express the signal in terms of a set of basis functions. These functions may be summed to produce the measured signal. Further, basis functions may be chosen such that a select set of the basis functions characterize the fault and/or defect. In one exemplary embodiment, the coefficients associated with the basis function may be non-zero when a defect is present. As such, a defect may be detected quickly and automatically.

摘要翻译： 超声波测试技术可能涉及从测试部分测量超声波。 这些波可能从部分内各层的表面反射出来。 此外，这些波浪可以从故障，缺陷，空隙，裂缝等反映。 因此，测量的超声波是这些反射的复杂混合。 用于检测缺陷，缺陷等的一种方法可以是基于一组基函数来表达信号。 这些功能可以相加以产生测量信号。 此外，可以选择基础功能，使得基础功能的选择集表征故障和/或缺陷。 在一个示例性实施例中，当存在缺陷时，与基础函数相关联的系数可以是非零。 因此，可以快速且自动地检测到缺陷。

公开(公告)号：US20040074303A1

公开(公告)日：2004-04-22

申请号：US10686444

申请日：2003-10-15

申请人： Symyx Technologies, Inc

发明人： Leonid Matsiev ,  James Bennett ,  Eric McFarland

IPC分类号： G01H013/00 ,  G01H003/04

CPC分类号： G01H13/00 ,  B01J2219/00704 ,  G01N9/002 ,  G01N9/34 ,  G01N11/16 ,  G01N29/022 ,  G01N29/036 ,  G01N29/30 ,  G01N29/348 ,  G01N29/42 ,  G01N29/4418 ,  G01N29/4427 ,  G01N29/4436 ,  G01N2009/006 ,  G01N2291/014 ,  G01N2291/0224 ,  G01N2291/0255 ,  G01N2291/0256 ,  G01N2291/02818 ,  G01N2291/0422 ,  G01N2291/0423 ,  G01N2291/0427 ,  G10K11/02

摘要： A method and apparatus for measuring properties of a liquid composition includes a mechanical resonator, such as a cantilever, connected to a measurement circuit. The mechanical resonator can be covered with a coating to impart additional special detection propertied to the resonator, and multiple resonators can be attached together as a single sensor to obtain multiple frequency responses. The invention is particularly suitable for combinatorial chemistry applications, which require rapid analysis of chemical properties for screening.

公开(公告)号：US20030188580A1

公开(公告)日：2003-10-09

申请号：US10384940

申请日：2003-03-10

发明人： Erik Cardelius

IPC分类号： G01N029/04 ,  G01M007/00

CPC分类号： G01N29/4436 ,  G01N29/024 ,  G01N29/222 ,  G01N29/30 ,  G01N29/326 ,  G01N2291/02809 ,  G01N2291/02845 ,  G01N2291/045

摘要： An acoustic gas monitor has a measurement chamber into which a reference gas of known composition is received and is provided with a wall section for the selective transmission of a gaseous substance to be monitored between the reference gas internal the chamber and a host gas externally of the chamber. An acoustic velocity meter is arranged to supply to an analyzer a signal indicative of an acoustic velocity within the mixture of reference gas and gaseous substance in the chamber. The analyzer being programmed to derive, from the velocity measurement made within the single chamber, information relating to the level of the gaseous substance to be monitored.

摘要翻译： 声学气体监测器具有测量室，已知组合物的参考气体被接收到该测量室中，并且设置有壁部分，用于选择性地传输待监测的气体物质在室内的参考气体和外部的主体气体之间 房间。 声速计设置成向分析器提供指示在室中的参考气体和气态物质的混合物内的声速的信号。 分析仪被编程为从单个室内进行的速度测量得到与要监测的气态物质的水平有关的信息。

公开(公告)号：US20030182089A1

公开(公告)日：2003-09-25

申请号：US10258646

申请日：2003-02-28

发明人： Philippe Rubbers

IPC分类号： G06F019/00 ,  H04B015/00

CPC分类号： G01N29/4436 ,  G01N29/38 ,  G01N29/42 ,  G01N29/46 ,  G01N2291/012 ,  G01N2291/044 ,  G01S7/52026 ,  G01S7/527 ,  G01S15/8906 ,  G01S15/8954 ,  G01S15/8977

摘要： The invention provides for improved signal to noise ratios in evaluation techniques. This is done by acquiring a signal, processing it to obtain a complex form thereof, obtaining a filtering factor from the complex form and processing the acquired signal with the filtering factor. The signal may be areturned ultrasonic, radar or sonar signal which may be reflected from a suitably sharp pulse. In particular, the invention may be used to evaluate articles to detect defects therein. In a preferred form, the complex form is filtered with a number of compelx filters and the phases of the complex filtered signals determined. These phases are then used to provide the filtering factor.

摘要翻译： 本发明提供了评估技术中改善的信噪比。 这是通过获取信号，处理它以获得其复杂形式，从复杂形式获得滤波因子并用滤波因子处理获取的信号来完成的。 信号可以是可以从适当的尖锐脉冲反射的超声波，雷达或声纳信号。 特别地，本发明可以用于评估用于检测其中的缺陷的制品。 在优选形式中，复数形式用多个compelx滤波器进行滤波，并确定复数滤波信号的相位。 然后使用这些阶段来提供过滤因子。

公开(公告)号：US20030145655A1

公开(公告)日：2003-08-07

申请号：US10068255

申请日：2002-02-06

申请人： Lockheed Martin Corporation

发明人： Peter W. Lorraine ,  Marc Dubois ,  Robert J. Filkins ,  Barbara Venchiarutti

IPC分类号： G01N009/04 ,  G01N029/00

CPC分类号： G01N29/50 ,  G01N29/11 ,  G01N29/4436 ,  G01N29/48 ,  G01N2291/0231 ,  G01N2291/0427 ,  G01N2291/044

摘要： Ultrasonic testing techniques may involve the measurement of ultrasonic waves from the tested part. These waves may reflect from surfaces of various layers within the part. Further, these waves may reflect from faults, defects, voids, fractures, and others. As such, the measured ultrasonic wave is a complex mix of these reflections. One method for detecting flaws, defects, and others may be to express the signal in terms of a set of basis functions. These functions may be summed to produce the measured signal. Further, basis functions may be chosen such that a select set of the basis functions characterize the fault and/or defect. In one exemplary embodiment, the coefficients associated with the basis function may be non-zero when a defect is present. As such, a defect may be detected quickly and automatically.

摘要翻译： 超声波测试技术可能涉及从测试部分测量超声波。 这些波可能从部分内各层的表面反射出来。 此外，这些波浪可以从故障，缺陷，空隙，裂缝等反映。 因此，测量的超声波是这些反射的复杂混合。 用于检测缺陷，缺陷等的一种方法可以是基于一组基函数来表达信号。 这些功能可以相加以产生测量信号。 此外，可以选择基础功能，使得基础功能的选择集表征故障和/或缺陷。 在一个示例性实施例中，当存在缺陷时，与基础函数相关联的系数可以是非零。 因此，可以快速且自动地检测到缺陷。