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19 条记录 (耗时 0.025 秒)

    Method and apparatus for phase for and amplitude detection
    13.
    发明授权
    Method and apparatus for phase for and amplitude detection 失效
    用于相位和幅度检测的方法和装置

    公开(公告)号：US5763283A

    公开(公告)日：1998-06-09

    申请号：US322119

    申请日：1994-10-12

    申请人： Richard W. Cernosek ,  Gregory C. Frye ,  Stephen J. Martin

    发明人： Richard W. Cernosek ,  Gregory C. Frye ,  Stephen J. Martin

    IPC分类号： G01N29/02 ,  G01N33/00

    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。

    Acoustic-wave sensor apparatus for analyzing a petroleum-based composition and sensing solidification of constituents therein
    14.
    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

    申请人： James J. Spates ,  Stephen J. Martin ,  Arthur J. Mansure

    发明人： James J. Spates ,  Stephen J. Martin ,  Arthur J. Mansure

    IPC分类号： G01N11/00 ,  G01N29/02 ,  G01N29/032 ,  G01N33/28 ,  G01N25/04 ,  G01N33/00

    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。

    Method of and apparatus for determining deposition-point temperature
    16.
    发明授权
    Method of and apparatus for determining deposition-point temperature 失效
    用于确定沉积点温度的方法和装置

    公开(公告)号：US5827952A

    公开(公告)日：1998-10-27

    申请号：US863936

    申请日：1997-05-27

    申请人： Arthur J. Mansure ,  James J. Spates ,  Stephen J. Martin

    发明人： Arthur J. Mansure ,  James J. Spates ,  Stephen J. Martin

    IPC分类号： G01N11/00 ,  G01N29/02 ,  G01N29/032 ,  G01N33/28 ,  G01N27/00 ,  C10G43/08

    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。

    Ion mobility spectrometer using frequency-domain separation
    17.
    发明授权
    Ion mobility spectrometer using frequency-domain separation 失效
    离子迁移谱仪使用频域分离

    公开(公告)号：US5789745A

    公开(公告)日：1998-08-04

    申请号：US959659

    申请日：1997-10-28

    申请人： Stephen J. Martin ,  Michael A. Butler ,  Gregory C. Frye ,  W. Kent Schubert

    发明人： Stephen J. Martin ,  Michael A. Butler ,  Gregory C. Frye ,  W. Kent Schubert

    IPC分类号： G01N27/64 ,  H01J49/40

    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）。

    Dual output acoustic wave sensor for molecular identification
    18.
    发明授权
    Dual output acoustic wave sensor for molecular identification 失效
    双输出声波传感器用于分子鉴定

    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。