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61. 发明授权

US07228740B2 Noninvasive characterization of a flowing multiphase fluid using ultrasonic interferometry 有权
标题翻译：使用超声波干涉法对流动的多相流体进行非侵入性表征
公开(公告)号：US07228740B2
公开(公告)日：2007-06-12
申请号：US11105098
申请日：2005-04-12
申请人： Dipen N. Sinha
发明人： Dipen N. Sinha
IPC分类号： G01H13/00 , G01N29/036
CPC分类号： G01N29/222 , G01N29/024 , G01N29/036 , G01N29/30 , G01N29/348 , G01N29/46 , G01N2291/012 , G01N2291/02818 , G01N2291/02836
摘要： An apparatus for noninvasively monitoring the flow and/or the composition of a flowing liquid using ultrasound is described. The position of the resonance peaks for a fluid excited by a swept-frequency ultrasonic signal have been found to change frequency both in response to a change in composition and in response to a change in the flow velocity thereof. Additionally, the distance between successive resonance peaks does not change as a function of flow, but rather in response to a change in composition. Thus, a measurement of both parameters (resonance position and resonance spacing), once calibrated, permits the simultaneous determination of flow rate and composition using the apparatus and method of the present invention.
摘要翻译：描述了使用超声波非侵入性地监测流动的液体的流动和/或组成的装置。发现由扫频频率超声波信号激发的流体的共振峰的位置响应于组成的变化和响应于其流速的变化而改变频率。此外，连续共振峰之间的距离不随流动的函数而变化，而是响应于组成的变化。因此，一旦校准，两个参数（共振位置和共振间隔）的测量允许使用本发明的装置和方法同时确定流速和组成。

62. 发明授权

US06186004B1 Apparatus and method for remote, noninvasive characterization of structures and fluids inside containers 有权
标题翻译：用于远程，无损地表征容器内结构和流体的装置和方法
公开(公告)号：US06186004B1
公开(公告)日：2001-02-13
申请号：US09323175
申请日：1999-05-27
申请人： Gregory Kaduchak , Dipen N. Sinha
发明人： Gregory Kaduchak , Dipen N. Sinha
IPC分类号： G01N2904
CPC分类号： G01N29/348 , G01N29/036 , G01N29/2418 , G01N29/346 , G01N2291/014 , G01N2291/02836 , G01N2291/0423 , G01N2291/0427 , G01N2291/106 , G01N2291/2634
摘要： An apparatus and method for the remote, noncontact evaluation of structures and containers at large distances (on the order of several meters) in air is described. The invention utilizes an air-coupled, parametric acoustic array to excite resonance vibrations of elastic, fluid-filled vessels and structural members. A nonlinear mixing process in the air medium transforms highly directional, narrow beamwidth higher acoustic frequencies into lower acoustic frequencies suitable for vibrational excitation of common structures. The parametric array also has an advantage for nondestructive evaluation applications in that it is capable of producing a broader bandwidth than typical linear devices, such as speakers and ultrasonic transducers. Typical carrier frequencies are in the 200 kHz range, and the sound field 3 m from the array has been demonstrated to have a bandwidth of greater than 25 kHz at a center frequency of 15 kHz. Vibrations have been excited in a fluid-filled, steel container at distances greater than 3 m from the array which are readily detected using a laser vibrometer in a fixed position relative to the acoustic array. It is demonstrated that the fluid contained within the steel vessel may be classified by analyzing the change in the response of the generated lowest-order, antisymmetric Lamb wave to changes in the interior fluid loading.
摘要翻译：描述了一种在空中远距离（几米左右）的结构和容器进行远程，非接触式评估的装置和方法。本发明利用空气耦合的参数声阵列来激发弹性流体填充的容器和结构构件的共振振动。空气介质中的非线性混合过程将高度方向性，窄波束宽度更高的声频转换成适合于共同结构的振动激励的较低声频。参数阵列还具有非破坏性评估应用的优点，因为它能够产生比典型的线性器件（如扬声器和超声换能器）更宽的带宽。典型的载波频率在200 kHz范围内，阵列3 m的声场在15 kHz的中心频率处具有大于25 kHz的带宽。振动已经在流体填充的钢容器中被激发，该容器距离阵列大于3m的距离，其使用激光测振仪在相对于声阵列的固定位置容易地检测。通过分析生成的最低阶，反对称兰姆波对内部流体负载变化的响应的变化，可以对钢容器中所含的流体进行分类。

63. 发明授权

US5426977A Method for establishing the presence of salmonella bacteria in eggs 失效
标题翻译：建立鸡蛋中沙门菌细菌存在的方法
公开(公告)号：US5426977A
公开(公告)日：1995-06-27
申请号：US160325
申请日：1993-12-02
申请人： Roger G. Johnston , Dipen N. Sinha
发明人： Roger G. Johnston , Dipen N. Sinha
IPC分类号： A01K43/00 , G01H13/00 , G01N29/12
CPC分类号： A01K43/00 , G01H13/00
摘要： Measurement of the acoustical resonances in eggs is shown to provide a rapid, noninvasive technique for establishing the presence of Salmonella bacteria. The technique is also sensitive to yolk puncture, shell cracks, and may be sensitive to other yolk properties and to egg freshness. Remote characterization, potentially useful for characterizing large numbers of eggs, has been demonstrated.
摘要翻译：鸡蛋中声共振的测量显示可以提供快速，无创的技术来建立沙门氏菌的存在。该技术也对卵黄穿刺，壳裂纹敏感，并且可能对其他卵黄性质和蛋清新敏感。已经证明了远程表征，可能用于表征大量卵。

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