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11.发明授权
公开(公告)号：US5798452A
公开(公告)日：1998-08-25
申请号：US846085
申请日：1997-04-25
申请人： Stephen J. Martin , James J. Wiczer , Richard W. Cernosek , Gregory C. Frye , Charles T. Gebert , Leonard Casaus , Mary A. Mitchell
发明人： Stephen J. Martin , James J. Wiczer , Richard W. Cernosek , Gregory C. Frye , Charles T. Gebert , Leonard Casaus , Mary A. Mitchell
CPC分类号： G01N11/16 , G01N29/022 , G01N9/002 , G01N2291/0258 , G01N2291/02818 , G01N2291/0421 , G01N2291/0422
摘要： A pair of thickness-shear mode resonators, one smooth and one with a textured surface, allows fluid density and viscosity to be independently resolved. A textured surface, either randomly rough or regularly patterned, leads to trapping of liquid at the device surface. The synchronous motion of this trapped liquid with the oscillating device surface allows the device to weigh the liquid; this leads to an additional response that depends on liquid density. This additional response enables a pair of devices, one smooth and one textured, to independently resolve liquid density and viscosity; the difference in responses determines the density while the smooth device determines the density-viscosity product, and thus, the pair determines both density and viscosity.
摘要翻译： 一对厚度 - 剪切模式谐振器，一个光滑的和一个具有纹理表面的厚度 - 剪切模式谐振器允许流体密度和粘度独立地解决。 随机粗糙或规则图案化的纹理表面导致在器件表面捕获液体。 这种捕获的液体与振荡装置表面的同步运动允许装置称重液体; 这导致依赖于液体密度的附加响应。 这种附加响应使得一对平滑和一个纹理的装置独立地分辨液体密度和粘度; 响应的差异决定密度，而光滑装置确定密度 - 粘度乘积，因此，该对确定密度和粘度。
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公开(公告)号：US5763283A
公开(公告)日：1998-06-09
申请号：US322119
申请日：1994-10-12
CPC分类号： G01N29/022 , G01N2291/014 , G01N2291/015 , G01N2291/0256 , G01N2291/0423 , Y10T436/21
摘要： A new class of techniques been developed which allow inexpensive application of SAW-type chemical sensor devices while retaining high sensitivity (ppm) to chemical detection. The new techniques do not require that the sensor be part of an oscillatory circuit, allowing large concentrations of, e.g., chemical vapors in air, to be accurately measured without compromising the capacity to measure trace concentrations. Such devices have numerous potential applications in environmental monitoring, from manufacturing environments to environmental restoration.
摘要翻译： 开发了一类新颖的技术，可以低成本地应用SAW型化学传感器，同时保持高灵敏度（ppm）到化学检测。 新技术不要求传感器是振荡电路的一部分，允许精确测量大量浓度的例如空气中的化学蒸气，而不会影响测量痕量浓度的能力。 这些设备在环境监测方面有许多潜在的应用，从制造环境到环境恢复。
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13.发明授权Acoustic-wave sensor apparatus for analyzing a petroleum-based composition and sensing solidification of constituents therein 失效用于分析石油基组合物并感测其中组分的凝固的声波传感器装置
公开(公告)号：US5661233A
公开(公告)日：1997-08-26
申请号：US621929
申请日：1996-03-26
CPC分类号： G01N33/2805 , G01N11/00 , G01N29/022 , G01N29/032 , G01N33/2811 , G01N2291/014 , G01N2291/015 , G01N2291/0256 , G01N2291/02818 , G01N2291/02881 , G01N2291/0421 , G01N2291/0422
摘要： An acoustic-wave sensor apparatus and method. The apparatus for analyzing a normally liquid petroleum-based composition includes at least one acoustic-wave device in contact with the petroleum-based composition for sensing or detecting the presence of constituents (e.g. paraffins or petroleum waxes) therein which solidify upon cooling of the petroleum-based composition below a cloud-point temperature. The acoustic-wave device can be a thickness-shear-mode device (also termed a quartz crystal mircrobalance), a surface-acoustic-wave device, an acoustic-plate-mode device or a flexural plate-wave device. Embodiments of the present invention can be used for measuring a cloud point, a pour point and/or a freeze point of the petroleum-based composition, and for determining a temperature characteristic of each point. Furthermore, measurements with the acoustic-wave sensor apparatus can be made off-line by using a sample having a particular petroleum-based composition; or in-situ with the petroleum-based composition contained within a pipeline or storage tank. The acoustic-wave sensor apparatus has uses in many different petroleum technology areas, including the recover transport, storage, refining and use of petroleum and petroleum-based products.
摘要翻译： 一种声波传感器装置及方法。 用于分析正常液体石油基组合物的装置包括至少一个与基于石油的组合物接触的声波装置，用于感测或检测在其中冷却石油时固化的组分（例如石蜡或石油蜡）的存在 的组合物低于浊点温度。 声波装置可以是厚度剪切模式装置（也称为石英晶体平衡装置），表面声波装置，声板模式装置或弯曲板式装置。 本发明的实施方案可以用于测量石油基组合物的浊点，倾点和/或凝固点，并且用于确定每个点的温度特性。 此外，通过使用具有特定的石油基组合物的样品，可以使用声波传感器装置进行测量离线; 或者与包含在管道或储存罐内的基于石油的组合物的原位。 声波传感器装置在许多不同的石油技术领域都有应用，包括石油和石油产品的回收运输，储存，精炼和使用。
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14.发明授权Method for simultaneous measurement of mass loading and fluid property changes using a quartz crystal microbalance 失效使用石英晶体微量天平同时测量质量负载和流体性质变化的方法
公开(公告)号：US5201215A
公开(公告)日：1993-04-13
申请号：US779727
申请日：1991-10-17
IPC分类号： G01N9/00 , G01N11/16 , G01N29/036
CPC分类号： G01N29/036 , G01N11/162 , G01N9/002 , G01N2291/014 , G01N2291/02818
摘要： A method, using a quartz crystal microbalance, to obtain simultaneous measurement of solid mass accumulation and changes in liquid density-viscosity product. The simultaneous real-time measurements of electrical parameters yields that changes in surface mass can be differentiated from changes in solution properties. Two methods to obtain the admittance/frequency data are employed.
摘要翻译： 使用石英晶体微量天平的方法可以同时测量固体物质的积聚量和液体密度 - 粘度产物的变化。 电参数的同时实时测量得出，表面质量的变化可以与溶液性质的变化区别开来。 采用两种获得导纳/频率数据的方法。
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公开(公告)号：US5827952A
公开(公告)日：1998-10-27
申请号：US863936
申请日：1997-05-27
CPC分类号： G01N11/00 , G01N29/022 , G01N29/032 , G01N33/2805 , G01N33/2811 , G01N2291/014 , G01N2291/015 , G01N2291/0256 , G01N2291/02818 , G01N2291/02881 , G01N2291/0421 , G01N2291/0422
摘要： Acoustic-wave sensor apparatus and method for analyzing a normally liquid petroleum-based composition for monitoring deposition-point temperature. The apparatus includes at least one acoustic-wave device such as SAW, QCM, FPM, TSM or APM type devices in contact with the petroleum-based composition for sensing or detecting the surface temperature at which deposition occurs and/or rate of deposition as a function of temperature by sensing an accompanying change in frequency, phase shift, damping voltage or damping current of an electrical oscillator to a known calibrated condition. The acoustic wave device is actively cooled to monitor the deposition of constituents such as paraffins by determining the point at which solids from the liquid composition begin to form on the acoustic wave device. The acoustic wave device can be heated to melt or boil off the deposits to reset the monitor and the process can be repeated.
摘要翻译： 用于分析用于监测沉积点温度的常规石油基组合物的声波传感器装置和方法。 该装置包括与石油基组合物接触的至少一个声波装置，例如SAW，QCM，FPM，TSM或APM型装置，用于感测或检测发生沉积的表面温度和/或沉积速率 通过将电气振荡器的频率，相移，阻尼电压或阻尼电流的伴随变化感测到已知的校准状态来实现温度的功能。 通过确定在声波装置上开始形成液体组合物的固体的点，主动冷却声波装置以监测组分如石蜡的沉积。 可以加热声波装置以熔化或蒸发沉积物以重置监视器，并且可以重复该过程。
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公开(公告)号：US5789745A
公开(公告)日：1998-08-04
申请号：US959659
申请日：1997-10-28
CPC分类号： G01N27/622 , H01J49/0018
摘要： An apparatus and method is provided for separating and analyzing chemical species in an ion mobility spectrometer using a frequency-domain technique wherein the ions generated from the chemical species are selectively transported through an ion flow channel having a moving electrical potential therein. The moving electrical potential allows the ions to be selected according to ion mobility, with certain of the ions being transported to an ion detector and other of the ions being effectively discriminated against. The apparatus and method have applications for sensitive chemical detection and analysis for monitoring of exhaust gases, hazardous waste sites, industrial processes, aerospace systems, non-proliferation, and treaty verification. The apparatus can be formed as a microelectromechanical device (i.e. a micromachine).
摘要翻译： 提供了一种使用频域技术分离和分析离子迁移谱仪中的化学物质的装置和方法，其中从化学物质产生的离子选择性地通过其中具有移动电位的离子流动通道传输。 移动的电位允许根据离子迁移率选择离子，其中某些离子被输送到离子检测器并且其他离子被有效地区分开。 该设备和方法应用于对废气，危险废物场所，工业过程，航空航天系统，不扩散和条约验证进行敏感的化学检测和分析。 该装置可以形成为微机电装置（即微型机械装置）。
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公开(公告)号：US5076094A
公开(公告)日：1991-12-31
申请号：US592383
申请日：1990-10-03
申请人： Gregory C. Frye , Stephen J. Martin
发明人： Gregory C. Frye , Stephen J. Martin
IPC分类号： G01N29/02
CPC分类号： G01N29/022 , G01N2291/0256 , G01N2291/02818 , G01N2291/0423 , G01N2291/0427
摘要： A method of identification and quantification of absorbed chemical species by measuring changes in both the velocity and the attenuation of an acoustic wave traveling through a thin film into which the chemical species is sorbed. The dual output response provides two independent sensor responses from a single sensing device thereby providing twice as much information as a single output sensor. This dual output technique and analysis allows a single sensor to provide both the concentration and the identity of a chemical species or permits the number of sensors required for mixtures to be reduced by a factor of two.
摘要翻译： 通过测量传播通过吸附化学物质的薄膜的声波的速度和衰减的变化来确定和量化吸收的化学物质的方法。 双输出响应提供来自单个感测装置的两个独立的传感器响应，从而提供与单个输出传感器相同数量的信息。 这种双输出技术和分析允许单个传感器提供化学物质的浓度和身份，或允许将混合物所需的传感器数量减少一倍。
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公开(公告)号：US4947677A
公开(公告)日：1990-08-14
申请号：US253642
申请日：1988-10-05
CPC分类号： G01N15/0893 , G01N29/022 , G01N2291/0256 , G01N2291/0423 , G01N2291/0426
摘要： N.sub.2 adsorption isotherms are measured from thin films on SAW devices. The isotherms may be used to determine the surface area and pore size distribution of thin films.
摘要翻译： N2吸附等温线由SAW器件上的薄膜测量。 等温线可用于确定薄膜的表面积和孔径分布。
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公开(公告)号：US4784833A
公开(公告)日：1988-11-15
申请号：US876228
申请日：1986-06-19
CPC分类号： G01N31/12
摘要： A pyrolysis apparatus useful in analyzing complex chemical substances including a pyrolysis chamber formed in a tubular member of fused quartz, the apparatus having a mixing chamber formed from a fused quartz material wherein pyrolysis components from a sample to be analyzed are mixed with hydrogen prior to being subjected to detection in an analyzer such as a flame ionization detector.
摘要翻译： 一种用于分析复杂化学物质的热解装置，包括形成在熔融石英的管状构件中的热解室，该装置具有由熔融石英材料形成的混合室，其中来自待分析的样品的热解成分在氢气之前与氢气混合 在诸如火焰离子化检测器的分析仪中进行检测。
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