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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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公开(公告)号：US5741961A
公开(公告)日：1998-04-21
申请号：US108397
申请日：1993-08-18
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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