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公开(公告)号：US20110226053A1
公开(公告)日：2011-09-22
申请号：US12729145
申请日：2010-03-22
IPC分类号： G01F1/688
CPC分类号： G01F1/36 , B01D17/10 , G01F1/40 , G01F1/684 , G01F1/6842 , G01F15/125
摘要： The present disclosure relates generally to flow sensors, and more particularly, to methods and devices for reducing variations in fluid flow across the flow sensor for increased accuracy and/or reliability. In one illustrative embodiment, a flow sensor assembly includes a housing with an inlet flow port and an outlet flow port. The housing defines a fluid channel extending between the inlet flow port and the outlet flow port, with a flow sensor positioned in the housing and exposed to the fluid channel. The flow sensor is configured to sense a measure related to the flow rate of a fluid flowing through the fluid channel. A porous insert is situated in the fluid channel, sometimes upstream of the flow sensor. When so configured, and during operation of the flow sensor assembly, a fluid may pass through the inlet flow port, through the porous insert, across the flow sensor, and through the outlet flow port. The porous insert may include pores that are configured to reduce the turbulence in the fluid passing the flow sensor.
摘要翻译： 本公开一般涉及流量传感器，更具体地，涉及用于减少横跨流量传感器的流体流动的变化以提高精度和/或可靠性的方法和装置。 在一个示例性实施例中，流量传感器组件包括具有入口流动端口和出口流动端口的壳体。 壳体限定在入口流动端口和出口流动端口之间延伸的流体通道，其中流量传感器定位在壳体中并暴露于流体通道。 流量传感器被配置为感测与流过流体通道的流体的流量相关的测量。 多孔插入件位于流体通道中，有时位于流量传感器的上游。 当这样构造并且在流量传感器组件的操作期间，流体可以穿过入口流动端口，穿过多孔插入物，穿过流量传感器，并且通过出口流动端口。 多孔插入件可以包括被配置为减少通过流量传感器的流体中的湍流的孔。
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公开(公告)号：US08397586B2
公开(公告)日：2013-03-19
申请号：US12729145
申请日：2010-03-22
CPC分类号： G01F1/36 , B01D17/10 , G01F1/40 , G01F1/684 , G01F1/6842 , G01F15/125
摘要： The present disclosure relates generally to flow sensors, and more particularly, to methods and devices for reducing variations in fluid flow across the flow sensor for increased accuracy and/or reliability. In one illustrative embodiment, a flow sensor assembly includes a housing with an inlet flow port and an outlet flow port. The housing defines a fluid channel extending between the inlet flow port and the outlet flow port, with a flow sensor positioned in the housing and exposed to the fluid channel. The flow sensor is configured to sense a measure related to the flow rate of a fluid flowing through the fluid channel. A porous insert is situated in the fluid channel, sometimes upstream of the flow sensor. When so configured, and during operation of the flow sensor assembly, a fluid may pass through the inlet flow port, through the porous insert, across the flow sensor, and through the outlet flow port. The porous insert may include pores that are configured to reduce the turbulence in the fluid passing the flow sensor.
摘要翻译： 本公开一般涉及流量传感器，更具体地，涉及用于减少横跨流量传感器的流体流动的变化以提高精度和/或可靠性的方法和装置。 在一个示例性实施例中，流量传感器组件包括具有入口流动端口和出口流动端口的壳体。 壳体限定在入口流动端口和出口流动端口之间延伸的流体通道，其中流量传感器定位在壳体中并暴露于流体通道。 流量传感器被配置为感测与流过流体通道的流体的流量相关的测量。 多孔插入件位于流体通道中，有时位于流量传感器的上游。 当这样构造并且在流量传感器组件的操作期间，流体可以穿过入口流动端口，穿过多孔插入物，穿过流量传感器，并且通过出口流动端口。 多孔插入件可以包括被配置为减少通过流量传感器的流体中的湍流的孔。
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3.发明申请公开(公告)号：US20080265711A1
公开(公告)日：2008-10-30
申请号：US11799346
申请日：2007-04-30
申请人： Sachin Kumar , James D. Cook , Gary O'Brien , Mohammed AJ. Qasimi , Richard C. Sorenson , Brian J. Marsh , Viorel V. Avramescu
发明人： Sachin Kumar , James D. Cook , Gary O'Brien , Mohammed AJ. Qasimi , Richard C. Sorenson , Brian J. Marsh , Viorel V. Avramescu
CPC分类号： G01L9/0025 , Y10T29/42
摘要： A method and apparatus, wherein a die is attached to a supporting base structure utilizing a rigid bond adhesive for a SAW (Surface Acoustic Wave) sensor. A rigid bond adhesive with a preferably high glass transition temperature (Tg) can be applied directly between the die and the die supporting structure in a pattern to eliminate time dependent gradual stress effects upon SAW sensor. The rigid bond adhesive can then be cured, which results in a high yield strength and a high young's modulus. The supporting base and the die material comprise a same co-efficient of thermal expansion in order to avoid die displacement over temperature.
摘要翻译： 一种方法和装置，其中使用用于SAW（表面声波）传感器的刚性粘合剂将模具附接到支撑基座结构。 具有优选高玻璃化转变温度（Tg）的刚性粘合剂可以以模式直接施加在模具和模具支撑结构之间，以消除对SAW传感器的时间依赖性渐变应力影响。 然后刚性粘合剂可以固化，这导致高屈服强度和高的杨氏模量。 支撑基底和模具材料包括相同的热膨胀系数，以避免在温度下的模具位移。
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4.发明授权公开(公告)号：US07576470B2
公开(公告)日：2009-08-18
申请号：US11799346
申请日：2007-04-30
申请人： Sachin Kumar , James D. Cook , Gary O'Brien , Mohammed A J Qasimi , Richard C. Sorenson , Brian J. Marsh , Viorel V. Avramescu
发明人： Sachin Kumar , James D. Cook , Gary O'Brien , Mohammed A J Qasimi , Richard C. Sorenson , Brian J. Marsh , Viorel V. Avramescu
IPC分类号： H01L41/08
CPC分类号： G01L9/0025 , Y10T29/42
摘要： A method and apparatus, wherein a die is attached to a supporting base structure utilizing a rigid bond adhesive for a SAW (Surface Acoustic Wave) sensor. A rigid bond adhesive with a preferably high glass transition temperature (Tg) can be applied directly between the die and the die supporting structure in a pattern to eliminate time dependent gradual stress effects upon SAW sensor. The rigid bond adhesive can then be cured, which results in a high yield strength and a high young's modulus. The supporting base and the die material comprise a same co-efficient of thermal expansion in order to avoid die displacement over temperature.
摘要翻译： 一种方法和装置，其中使用用于SAW（表面声波）传感器的刚性粘合剂将模具附接到支撑基座结构。 具有优选高玻璃化转变温度（Tg）的刚性粘合剂可以以模式直接施加在模具和模具支撑结构之间，以消除对SAW传感器的时间依赖性渐变应力影响。 然后刚性粘合剂可以固化，这导致高屈服强度和高的杨氏模量。 支撑基底和模具材料包括相同的热膨胀系数，以避免在温度下的模具位移。
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