Interdigitated, full wheatstone bridge flow sensor transducer

    公开(公告)号:US20070204688A1

    公开(公告)日:2007-09-06

    申请号:US11366653

    申请日:2006-03-01

    IPC分类号: G01F1/68

    CPC分类号: G01F1/6845 G01F1/688

    摘要: A sensor apparatus includes a heating element comprising an upstream side and a downstream side. A first heat sensing set is generally configured adjacent to the upstream side of the heating element and comprises a first sensing element and a second sensing element, the first and second sensing elements configured in a serpentine, interdigitated pattern. A second heat sensing set can be configured adjacent to the downstream side of the heating element and comprises a third sensing element and a fourth sensing element, the third and fourth sensing elements configured in a serpentine, interdigitated pattern.

    Flow sensor with bypass taps in laminar flow element laminarizing channel
    2.
    发明授权
    Flow sensor with bypass taps in laminar flow element laminarizing channel 有权
    流量传感器在层流元件层流通道中具有旁路抽头

    公开(公告)号:US08931338B2

    公开(公告)日:2015-01-13

    申请号:US13596878

    申请日:2012-08-28

    申请人: Jamie Speldrich

    发明人: Jamie Speldrich

    IPC分类号: G01F1/68 F17D1/00

    摘要: A flow sensor includes a main flow body, a laminar flow element, a first bypass tap, and a second flow element sensor tap. The main flow body has a first main flow port, a second main flow port, a main flow channel, a first bypass tap, a second bypass tap, and a bypass flow channel. The laminar flow element is disposed within the main flow channel. The bypass flow channel has a cross sectional area, and the first bypass tap and the second bypass tap each have a cross sectional area that is greater than the maximum cross sectional area of the bypass flow channel.

    摘要翻译: 流量传感器包括主流体,层流元件,第一旁通分接头和第二流体元件传感器分接头。 主流体具有第一主流路,第二主流道,主流路,第一旁通管,第二旁通管和旁通流路。 层流元件设置在主流动通道内。 旁通流动通道具有横截面积,并且第一旁通分流器和第二旁通分接头各自具有大于旁路流动通道的最大横截面面积的横截面面积。

    Molded flow restrictor
    3.
    发明授权
    Molded flow restrictor 有权
    成型流量限制器

    公开(公告)号:US08756990B2

    公开(公告)日:2014-06-24

    申请号:US13074932

    申请日:2011-03-29

    申请人: Jamie Speldrich

    发明人: Jamie Speldrich

    IPC分类号: G01F15/14

    摘要: The present disclosure relates generally to flow sensors, and more particularly, to devices and methods for providing a pressure drop through a flow sensor at a given flow rate. In one illustrative embodiment, a sensor assembly includes a housing with a first flow port and a second flow port. The housing may define a fluid channel extending between the first flow port and the second flow port, with a sensor positioned in the housing and exposed to the fluid channel. The illustrative sensor may be configured to sense a measure related to the flow rate of a fluid flowing through the fluid channel. A flow restrictor may be situated in and integrally molded with at least one of the first flow port and the second flow port. The flow restrictor may be configured to accurately provide a pressure drop through the flow sensor at a given flow rate.

    摘要翻译: 本公开一般涉及流量传感器,更具体地,涉及用于以给定流量通过流量传感器提供压降的装置和方法。 在一个说明性实施例中,传感器组件包括具有第一流动端口和第二流动端口的壳体。 壳体可以限定在第一流动端口和第二流动端口之间延伸的流体通道,传感器定位在壳体中并暴露于流体通道。 说明性传感器可以被配置为感测与流过流体通道的流体的流量相关的测量。 限流器可以位于第一流动端口和第二流动端口中的至少一个上并与其一体地模制。 流量限制器可以被配置为以给定的流速精确地提供通过流量传感器的压降。

    FLOW SENSOR ASSEMBLY WITH POROUS INSERT
    6.
    发明申请
    FLOW SENSOR ASSEMBLY WITH POROUS INSERT 有权
    流量传感器组件与多孔插件

    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

    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。

    SENSOR ASSEMBLY WITH HYDROPHOBIC FILTER
    7.
    发明申请
    SENSOR ASSEMBLY WITH HYDROPHOBIC FILTER 有权
    传感器总成与疏水过滤器

    公开(公告)号:US20110226052A1

    公开(公告)日:2011-09-22

    申请号:US12729173

    申请日:2010-03-22

    IPC分类号: G01F1/688

    摘要: The present disclosure relates generally to sensors, and more particularly, to methods and devices for reducing moisture, dust, particulate matter, and/or other contaminates entering a sensor. In one illustrative embodiment, a 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 sensor positioned in the housing and exposed to the fluid channel. The illustrative sensor is configured to sense a measure related to the flow rate of a fluid flowing through the fluid channel. A hydrophobic filter may be situated in the fluid channel, sometimes upstream of the sensor. When so configured, and during operation of the sensor assembly, a fluid may pass through the inlet flow port, through the hydrophobic filter, across the sensor, and through the outlet flow port. The hydrophobic filter may be configured to reduce the moisture entering the fluid channel of the sensor.

    摘要翻译: 本公开一般涉及传感器,更具体地,涉及用于减少进入传感器的湿气,灰尘,颗粒物质和/或其它污染物的方法和装置。 在一个说明性实施例中,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,传感器定位在壳体中并暴露于流体通道。 说明性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。 疏水过滤器可以位于流体通道中,有时位于传感器的上游。 当这样构造并且在传感器组件的操作期间,流体可以穿过入口流动端口,穿过疏水过滤器,穿过传感器,并且通过出口流动端口。 疏水过滤器可以被配置为减少进入传感器的流体通道的湿气。

    Mass-flow sensor with a molded flow restrictor
    8.
    发明授权
    Mass-flow sensor with a molded flow restrictor 失效
    质量流量传感器具有模制流量限制器

    公开(公告)号:US07631562B1

    公开(公告)日:2009-12-15

    申请号:US12193976

    申请日:2008-08-19

    申请人: Jamie Speldrich

    发明人: Jamie Speldrich

    IPC分类号: G01F1/37

    摘要: A high mass-flow sensing apparatus and method of forming the same, comprising a flow tube bypassed in a flow path defined by a flow channel, through which a fluid flows. A flow sensor can be disposed in the flow tube for measuring a flow rate of the fluid in the flow channel. A set of narrow rectangular flow restrictors can be molded into the flow tube and adjacent to the flow sensor. Each flow restrictor can include several rectangular cutouts that are molded into upstream and/or downstream portions of the flow tube in order to limit the flow rate of the fluid across the flow sensor. The flow restrictors can laminarize the flow rate of the fluid in the flow tube and thereby reduce flow turbulence and lead to optimal sensing performance of the flow sensor.

    摘要翻译: 一种高质量流量感测装置及其形成方法,包括在由流路限定的流路中旁路的流管,流体流过该流路。 流量传感器可以设置在流管中,用于测量流动通道中流体的流量。 一组窄矩形流量限制器可以模制到流管中并与流量传感器相邻。 每个限流器可以包括模制到流管的上游和/或下游部分中的几个矩形切口,以便限制流体流过流量传感器的流速。 流量限制器可以使流量管中流体的流速分层,从而减少流动湍流并导致流量传感器的最佳感测性能。