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11. 发明授权

US07730793B2 Venturi flow sensor 有权
标题翻译：文丘里流量传感器
公开(公告)号：US07730793B2
公开(公告)日：2010-06-08
申请号：US11941685
申请日：2007-11-16
申请人： Jamie W. Speldrich
发明人： Jamie W. Speldrich
IPC分类号： G01F1/44
CPC分类号： G01F1/44 , G01F1/363 , G01F1/6842 , G01F1/6845 , G01F5/00
摘要： A venturi flow sensing method, system, and apparatus. A tube or chamber may be tapered from a larger to smaller diameter to create a venturi region within the tube or chamber. The venturi region causes a local increase in flow velocity. The change in velocity creates a local change in pressure which is, in turn, used to drive flow through a parallel bypass tube or chamber. Inside this bypass, a flow sensor can be located, and in some cases, a pressure sensor as well. The flow is then either exhausted back into the original tube or the bypass tube may alternatively dead end. In either case, flow can be measured without causing a significant overall pressure drop in the system.
摘要翻译：文丘里流量检测方法，系统和装置。管或腔室可以从更大到更小的直径逐渐变细，以在管或腔室内产生文氏管区域。文氏管区域导致流速的局部增加。速度的变化产生局部的压力变化，这又是用来驱动流过并联旁路管或腔的流量。在旁路旁边，可以定位流量传感器，在某些情况下也可以设置压力传感器。然后将流量排出回到原始管中，或旁路管可以替代地死端。在任一情况下，可以测量流量而不会在系统中引起明显的总体压降。

12. 发明授权

US07654157B2 Airflow sensor with pitot tube for pressure drop reduction 失效
标题翻译：气流传感器带皮托管用于压降降低
公开(公告)号：US07654157B2
公开(公告)日：2010-02-02
申请号：US11948317
申请日：2007-11-30
申请人： Jamie W. Speldrich
发明人： Jamie W. Speldrich
IPC分类号： G01F1/46
CPC分类号： G01F5/00 , G01F1/46 , G01F1/6842
摘要： An airflow sensor apparatus for measuring flow rate includes a pitot tube with a bypass channel wherein the pitot tube extends halfway into a flow channel in order to reduce a pressure drop. One or more upstream taps can be spaced along the pitot tube facing into a direction of a flow stream which directs the flow to the bypass channel. At least one or more downstream taps can be located to face perpendicular to the direction of flow, such that the fluid after passing over a flow sensor passes through the downstream tap(s). The upstream tap senses stagnation pressure and the down stream tap senses static pressure which is exerted in all directions in the flow channel in order to determine a velocity pressure based on a difference between pressures.
摘要翻译：用于测量流量的气流传感器装置包括具有旁通通道的皮托管，其中皮托管延伸到流动通道的中途，以减少压降。一个或多个上游抽头可以沿着皮托管间隔开，其面向流向旁路通道的流动方向。可以将至少一个或多个下游抽头定位成垂直于流动方向，使得流过流量传感器之后的流体通过下游丝锥。上游龙头感测停滞压力，下游龙头感测在流动通道中在所有方向上施加的静压，以便基于压力差来确定速度压力。

13. 发明授权

US07647835B2 Pressure sensor stress isolation pedestal 有权
标题翻译：压力传感器应力隔离基座
公开(公告)号：US07647835B2
公开(公告)日：2010-01-19
申请号：US11901750
申请日：2007-09-19
申请人： Jamie W. Speldrich
发明人： Jamie W. Speldrich
IPC分类号： G01L9/00
CPC分类号： G01L19/147 , G01L19/146
摘要： A pressure sensor stress isolation pedestal including a pressure sensor mounted in a housing with a circuit board. The sensor is bonded to a relatively tall pedestal. The height of the pedestal creates a stiff mounting structure that isolates the sensor from mechanical stress. The pedestal is formed by making a recess or moat-like structure around the pressure sensor in the housing that supports the sensor. Preferred sensors are MEMS type Pressure Sensors.
摘要翻译：一种压力传感器应力隔离基座，包括安装在具有电路板的壳体中的压力传感器。传感器连接到相对较高的基座上。基座的高度创建了一个刚性的安装结构，将传感器与机械应力隔离开来。基座通过在支撑传感器的壳体中的压力传感器周围形成凹部或护城河状结构而形成。优选的传感器是MEMS型压力传感器。

14. 发明授权

US07373819B2 Stress sensitive humidity sensor based on a MEMS structure 失效
标题翻译：基于MEMS结构的应力敏感湿度传感器
公开(公告)号：US07373819B2
公开(公告)日：2008-05-20
申请号：US11242577
申请日：2005-09-30
申请人： Kevin J. Engler , Jamie W. Speldrich
发明人： Kevin J. Engler , Jamie W. Speldrich
IPC分类号： G01N27/02 , G01N19/00
CPC分类号： G01N19/10
摘要： A humidity sensing apparatus and method include a substrate and a MEMS structure, wherein the MEMS structure is supported by the substrate. The MEMS structure comprises a humidity-sensitive material in association with a movable member such that when the humidity-sensitive material changes with humidity, the MEMS structure moves the movable member, thereby providing an indication of humidity based on a stress within the MEMS structure.
摘要翻译：湿度感测装置和方法包括基板和MEMS结构，其中MEMS结构由基板支撑。 MEMS结构包括与可移动部件相关联的湿度敏感材料，使得当湿度敏感材料随着湿度变化时，MEMS结构移动可移动部件，从而基于MEMS结构内的应力提供湿度指示。

15. 发明授权

US06655207B1 Flow rate module and integrated flow restrictor 有权
标题翻译：流量模块和集成流量限制器
公开(公告)号：US06655207B1
公开(公告)日：2003-12-02
申请号：US09505135
申请日：2000-02-16
申请人： Jamie W. Speldrich , Ulrich Bonne , Martin G. Murray
发明人： Jamie W. Speldrich , Ulrich Bonne , Martin G. Murray
IPC分类号： G01F500
CPC分类号： G01F5/00 , G01F1/40 , G01F1/6842 , G01F15/00
摘要： An integrated module is provided for measuring a flow rate of a fluid, whether gaseous or liquid, with a flow restrictor comprising a plurality of orifices adapted to a flow channel of the integrated module and a sensor mounted to measure a property of the fluid at said flow restrictor corresponding to the flow rate. The integrated module provided may be used in numerous flow systems, such as reactors, ventilators and respirators, and has the benefit of better laminarization of the flow as well as better calibration between the flow sensor and the flow restrictor for more accurate flow measurements.
摘要翻译：提供了一种集成模块，用于测量流体（无论是气体还是液体）的流速，流量限制器包括适于集成模块的流动通道的多个孔口，以及传感器，其安装成用于测量所述流体流量限制器对应于流量。所提供的集成模块可用于许多流动系统，例如反应器，呼吸机和呼吸器，并且具有更好的流动层流的优点以及流量传感器和限流器之间更好的校准以获得更准确的流量测量。

16. 发明授权

US5792958A Pressure sensor with a compressible insert to prevent damage from freezing 失效
标题翻译：带有可压缩插入件的压力传感器，以防止冻结
公开(公告)号：US5792958A
公开(公告)日：1998-08-11
申请号：US786820
申请日：1997-01-21
申请人： Jamie W. Speldrich
发明人： Jamie W. Speldrich
IPC分类号： G01L9/00 , G01L19/06 , G01L9/06 , G01L9/08 , G01L9/12
CPC分类号： G01L19/06
摘要： A pressure sensor is provided with a compressible insert that is disposed within an internal opening of a potentially frangible component, such as a tubular glass member. If a condensate forms within the internal opening of the tubular glass member, freezing of the condensate can cause it to expand and damage the glass member. The compressible insert absorbs the expansion of the liquid condensate by compressing and prevents the expanding condensate from cracking the tubular glass member. The compressible insert, in a particularly preferred embodiment of this invention, has an opening extending therethrough to facilitate the transmission of pressure throughout the aligned openings of the pressure sensor. In one particular embodiment, a silicone die is etched to provide a cavity and corresponding diaphragm portion on which piezoresistive elements are disposed. The silicon pressure die is attached, by anodic bonding, to the tubular glass member and the tubular glass member is, in turn, attached to a tubular support member. The tubular support member can be attached to a metallic conduit structure to facilitate connection of the pressure sensor to a tube or hose.
摘要翻译：压力传感器设置有可压缩插入件，该可压缩插入件设置在诸如管状玻璃构件的潜在易碎部件的内部开口内。如果在管状玻璃构件的内部开口内形成冷凝物，则冷凝物的冷凝可导致其膨胀并损坏玻璃构件。可压缩插入物通过压缩吸收液体冷凝物的膨胀，并防止膨胀的冷凝物破裂管状玻璃构件。在本发明的一个特别优选的实施例中，可压缩插入件具有穿过其中延伸的开口，以便于在压力传感器的整个对准开口处传递压力。在一个具体实施例中，蚀刻硅树脂管芯以提供其上设置有压阻元件的空腔和相应的隔膜部分。硅压力模具通过阳极接合附接到管状玻璃构件，并且管状玻璃构件又连接到管状支撑构件。管状支撑构件可以附接到金属导管结构以便于将压力传感器连接到管或软管。

17. 发明授权

US07603898B2 MEMS structure for flow sensor 有权
标题翻译：流量传感器的MEMS结构
公开(公告)号：US07603898B2
公开(公告)日：2009-10-20
申请号：US11960192
申请日：2007-12-19
申请人： Jamie W. Speldrich
发明人： Jamie W. Speldrich
IPC分类号： G01F15/00
CPC分类号： G01F1/6845 , G01F15/006
摘要： A MEMS based flow sensor is disclosed which generally incorporate isolation between a sensing structure and the sensed media. An internal flow channel can be configured by attaching a backing structure with flow openings to the back of the sensing structure. The sensing structure can be composed of a insulating layer with heating element and a dual sensing element which comprises of resistive thin films positioned in a Wheatstone bridge configuration over a backside cavity. The dual sensing element and its associated wirebonds can be isolated from the sensing media by directing the fluid through the internal flow channel. The completed sensing structure can be over packaged with standard processes such as epoxies and seals.
摘要翻译：公开了一种基于MEMS的流量传感器，其通常结合感测结构和感测介质之间的隔离。可以通过将具有流动开口的背衬结构附接到感测结构的背面来构造内部流动通道。感测结构可以由具有加热元件的绝缘层和双重感测元件构成，双重感测元件包括位于惠斯通电桥结构中的电阻薄膜，该电阻薄膜位于背侧腔体上。通过将流体引导通过内部流动通道，双重传感元件及其相关的引线键可以与感测介质隔离。完整的传感结构可以用标准工艺过程包装，如环氧树脂和密封。

18. 发明申请

US20090158838A1 MEMS STRUCTURE FOR FLOW SENSOR 有权
标题翻译：流量传感器的MEMS结构
公开(公告)号：US20090158838A1
公开(公告)日：2009-06-25
申请号：US11960192
申请日：2007-12-19
申请人： Jamie W. Speldrich
发明人： Jamie W. Speldrich
IPC分类号： G01F15/00
CPC分类号： G01F1/6845 , G01F15/006
摘要： A MEMS based flow sensor is disclosed which generally incorporate isolation between a sensing structure and the sensed media. An internal flow channel can be configured by attaching a backing structure with flow openings to the back of the sensing structure. The sensing structure can be composed of a insulating layer with heating element and a dual sensing element which comprises of resistive thin films positioned in a Wheatstone bridge configuration over a backside cavity. The dual sensing element and its associated wirebonds can be isolated from the sensing media by directing the fluid through the internal flow channel. The completed sensing structure can be over packaged with standard processes such as epoxies and seals.
摘要翻译：公开了一种基于MEMS的流量传感器，其通常结合感测结构和感测介质之间的隔离。可以通过将具有流动开口的背衬结构附接到感测结构的背面来构造内部流动通道。感测结构可以由具有加热元件的绝缘层和双重感测元件构成，双重感测元件包括位于惠斯通电桥结构中的电阻薄膜，该电阻薄膜位于背侧腔体上。通过将流体引导通过内部流动通道，双重传感元件及其相关的引线键可以与感测介质隔离。完整的传感结构可以用标准工艺过程包装，如环氧树脂和密封。

19. 发明申请

US20090071260A1 Pressure sensor stress isolation pedestal 有权
标题翻译：压力传感器应力隔离基座
公开(公告)号：US20090071260A1
公开(公告)日：2009-03-19
申请号：US11901750
申请日：2007-09-19
申请人： Jamie W. Speldrich
发明人： Jamie W. Speldrich
IPC分类号： G01L7/00
CPC分类号： G01L19/147 , G01L19/146
摘要： A pressure sensor stress isolation pedestal including a pressure sensor mounted in a housing with a circuit board. The sensor is bonded to a relatively tall pedestal. The height of the pedestal creates a stiff mounting structure that isolates the sensor from mechanical stress. The pedestal is formed by making a recess or moat-like structure around the pressure sensor in the housing that supports the sensor. Preferred sensors are MEMS type Pressure Sensors.
摘要翻译：一种压力传感器应力隔离基座，包括安装在具有电路板的壳体中的压力传感器。传感器连接到相对较高的基座上。基座的高度创建了一个刚性的安装结构，将传感器与机械应力隔离开来。基座通过在支撑传感器的壳体中的压力传感器周围形成凹部或护城河状结构而形成。优选的传感器是MEMS型压力传感器。

20. 发明授权

US08286506B2 Air flow sensor with low-pressure drop 失效
标题翻译：空气流量传感器具有低压降
公开(公告)号：US08286506B2
公开(公告)日：2012-10-16
申请号：US12685862
申请日：2010-01-12
申请人： Jamie W. Speldrich
发明人： Jamie W. Speldrich
IPC分类号： G01F1/46
CPC分类号： G01F5/00 , G01F1/46 , G01F1/6842
摘要： An airflow sensor apparatus for measuring flow rate includes a pitot tube with a bypass channel wherein the pitot tube extends halfway into a flow channel in order to reduce a pressure drop. One or more upstream taps can be spaced along the pitot tube facing into a direction of a flow stream which directs the flow to the bypass channel. At least one or more downstream taps can be located to face perpendicular to the direction of flow, such that the fluid after passing over a flow sensor passes through the downstream tap(s). The upstream tap senses stagnation pressure and the down stream tap senses static pressure which is exerted in all directions in the flow channel in order to determine a velocity pressure based on a difference between pressures.
摘要翻译：用于测量流量的气流传感器装置包括具有旁通通道的皮托管，其中皮托管延伸到流动通道的中途，以减少压降。一个或多个上游抽头可以沿着皮托管间隔开，其面向流向旁路通道的流动方向。可以将至少一个或多个下游抽头定位成垂直于流动方向，使得流过流量传感器之后的流体通过下游丝锥。上游龙头感测停滞压力，下游龙头感测在流动通道中在所有方向上施加的静压，以便基于压力差来确定速度压力。

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