Flow sensor with enhanced flow range capability
    1.
    发明授权
    Flow sensor with enhanced flow range capability 有权
    流量传感器具有增强的流量范围能力

    公开(公告)号:US08695417B2

    公开(公告)日:2014-04-15

    申请号:US13018017

    申请日:2011-01-31

    IPC分类号: G01F1/68

    摘要: Flow sensor assemblies having increased flow range capabilities are disclosed. In one illustrative embodiment, a flow sensor assembly includes a housing with an inlet flow port, an outlet flow port, and a fluid channel extending between the inlet flow port and the outlet flow port. One or more partitions are provided in the fluid channel of the housing to define two or more fluid sub-passages. A flow sensor, for sensing a measure related to a flow rate of a fluid flowing through the fluid channel, is positioned in one of the two or more fluid sub-passages. In some cases, the cross-sectional area of each of the two or more fluid sub-passages may be substantially the same, but this is not required. The housing may be formed from a single molded part defining the inlet and outlet flow ports, at least a portion of the fluid channel, and one or more of the partitions. In this case, a top cover may be provided and mounted to the housing to define the remaining portion of the fluid channel, if desired.

    摘要翻译: 公开了具有增加的流量范围能力的流量传感器组件。 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,出口流动端口和在入口流动端口和出口流动端口之间延伸的流体通道的壳体。 一个或多个分隔件设置在壳体的流体通道中以限定两个或更多个流体分通道。 用于感测与流过流体通道的流体的流量相关的测量的流量传感器位于两个或更多个流体分通道中的一个中。 在一些情况下,两个或更多个流体子通道中的每一个的横截面面积可以基本上相同,但是这不是必需的。 壳体可以由限定入口和出口流动端口,流体通道的至少一部分以及一个或多个隔板的单个模制部件形成。 在这种情况下,如果需要,顶盖可以设置并安装到壳体以限定流体通道的剩余部分。

    FLOW SENSOR WITH ENHANCED FLOW RANGE CAPABILITY
    2.
    发明申请
    FLOW SENSOR WITH ENHANCED FLOW RANGE CAPABILITY 有权
    流量传感器具有增强的流量范围能力

    公开(公告)号:US20120192643A1

    公开(公告)日:2012-08-02

    申请号:US13018017

    申请日:2011-01-31

    IPC分类号: G01F1/68 G01F15/14

    摘要: Flow sensor assemblies having increased flow range capabilities are disclosed. In one illustrative embodiment, a flow sensor assembly includes a housing with an inlet flow port, an outlet flow port, and a fluid channel extending between the inlet flow port and the outlet flow port. One or more partitions are provided in the fluid channel of the housing to define two or more fluid sub-passages. A flow sensor, for sensing a measure related to a flow rate of a fluid flowing through the fluid channel, is positioned in one of the two or more fluid sub-passages. In some cases, the cross-sectional area of each of the two or more fluid sub-passages may be substantially the same, but this is not required. The housing may be formed from a single molded part defining the inlet and outlet flow ports, at least a portion of the fluid channel, and one or more of the partitions. In this case, a top cover may be provided and mounted to the housing to define the remaining portion of the fluid channel, if desired.

    摘要翻译: 公开了具有增加的流量范围能力的流量传感器组件。 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,出口流动端口和在入口流动端口和出口流动端口之间延伸的流体通道的壳体。 一个或多个分隔件设置在壳体的流体通道中以限定两个或更多个流体分通道。 用于感测与流过流体通道的流体的流量相关的测量的流量传感器位于两个或更多个流体分通道中的一个中。 在一些情况下,两个或更多个流体子通道中的每一个的横截面面积可以基本上相同,但是这不是必需的。 壳体可以由限定入口和出口流动端口,流体通道的至少一部分以及一个或多个隔板的单个模制部件形成。 在这种情况下,如果需要,顶盖可以设置并安装到壳体以限定流体通道的剩余部分。

    Flow sensor assembly with integral bypass channel

    公开(公告)号:US08418549B2

    公开(公告)日:2013-04-16

    申请号:US13018037

    申请日:2011-01-31

    IPC分类号: G01F1/68

    摘要: Flow sensor assemblies having increased flow range capabilities are disclosed. In one illustrative embodiment, a flow sensor assembly includes a housing with an inlet flow port, an outlet flow port, a fluid channel extending between the inlet flow port and the outlet flow port, and a bypass channel having a pair of taps fluidly connected to the fluid channel at separate locations. A flow sensor for sensing a measure related to a flow rate of a fluid flowing through the fluid channel can positioned in the bypass channel. A pressure differential between the two taps of the bypass channel can drive a fraction of a fluid flowing through the fluid channel through the bypass channel. The flow sensor assembly may be configured to achieve, control, and/or balance a desired fraction of fluid flow through the bypass channel and past the flow sensor.

    FLOW SENSOR ASSEMBLY WITH INTEGRAL BYPASS CHANNEL
    4.
    发明申请
    FLOW SENSOR ASSEMBLY WITH INTEGRAL BYPASS CHANNEL 有权
    流量传感器总成与整体旁路通道

    公开(公告)号:US20120192642A1

    公开(公告)日:2012-08-02

    申请号:US13018037

    申请日:2011-01-31

    IPC分类号: G01F1/34 G01F1/68 G01F1/36

    摘要: Flow sensor assemblies having increased flow range capabilities are disclosed. In one illustrative embodiment, a flow sensor assembly includes a housing with an inlet flow port, an outlet flow port, a fluid channel extending between the inlet flow port and the outlet flow port, and a bypass channel having a pair of taps fluidly connected to the fluid channel at separate locations. A flow sensor for sensing a measure related to a flow rate of a fluid flowing through the fluid channel can positioned in the bypass channel. A pressure differential between the two taps of the bypass channel can drive a fraction of a fluid flowing through the fluid channel through the bypass channel. The flow sensor assembly may be configured to achieve, control, and/or balance a desired fraction of fluid flow through the bypass channel and past the flow sensor.

    摘要翻译: 公开了具有增加的流量范围能力的流量传感器组件。 在一个说明性实施例中,流量传感器组件包括具有入口流动端口,出口流动端口,在入口流动端口和出口流动端口之间延伸的流体通道的壳体,以及具有流体连接到 流体通道在不同的位置。 用于感测与流过流体通道的流体的流量有关的措施的流量传感器可以位于旁路通道中。 旁路通道的两个水龙头之间的压差可以驱动通过旁通通道流过流体通道的流体的一部分。 流量传感器组件可以被配置为实现,控制和/或平衡通过旁路通道并经过流量传感器的流体流量的期望分数。

    MEMS airflow sensor die incorporating additional circuitry on the die
    5.
    发明授权
    MEMS airflow sensor die incorporating additional circuitry on the die 有权
    MEMS气流传感器芯片在芯片上结合有额外的电路

    公开(公告)号:US08640552B2

    公开(公告)日:2014-02-04

    申请号:US13226264

    申请日:2011-09-06

    IPC分类号: G01F1/86

    摘要: A MEMS airflow sensor die having a heater control circuit, differential instrumentation amplifier, temperature compensation, and/or offset correction circuitry integrated with an airflow sensor on the MEMS die. The added circuitry may be placed on space available on the basic airflow die with MEMS fabrication techniques without enlarging the sensor die. The die with the added circuitry may result in a device having a reduced form factor, improved reliability and lower cost.

    摘要翻译: 具有与MEMS管芯上的气流传感器集成的加热器控制电路,差分仪表放大器,温度补偿和/或偏移校正电路的MEMS气流传感器管芯。 添加的电路可以放置在具有MEMS制造技术的基本气流模具上可用的空间上,而不需要扩大传感器芯片。 具有附加电路的裸片可能导致具有减小的形状因数,改进的可靠性和更低成本的器件。

    Method and apparatus for increasing the effective resolution of a sensor
    6.
    发明授权
    Method and apparatus for increasing the effective resolution of a sensor 有权
    增加传感器有效分辨率的方法和装置

    公开(公告)号:US08446220B2

    公开(公告)日:2013-05-21

    申请号:US13103913

    申请日:2011-05-09

    IPC分类号: H03F1/00

    摘要: Methods and devices for increasing a sensor resolution are disclosed. In one example, a two measurement process is used. A first measurement is used to effectively measure across a full range (e.g. 0 to 5 VDC) of the sensor. This first measurement may identify the current operating point of the sensor (e.g. 3.5 VDC). A second measurement may then be made to effectively measure across a sub-range of the sensor that encompasses the current operating point of the sensor (e.g. across a sub-range of 3.0 to 4.0 VDC for a current operating point of 3.5 VDC). The gain of the amplifier may be raised during the second measurement to produce a higher resolution measurement. In some cases, the first measurement may be used to determine an appropriate offset that may be applied so as to scale the amplifier to the desired sub-range of sensor that includes the current operating point of the sensor. In some cases, the two measurements may be used together to compute an effectively higher resolution measurement signal. In some cases, this may allow for a smaller and/or cheaper sensor to be used, while still achieving good results.

    摘要翻译: 公开了用于增加传感器分辨率的方法和装置。 在一个示例中,使用两个测量过程。 第一测量用于有效地测量传感器的全范围(例如0至5VDC)。 该第一测量可以识别传感器的当前工作点(例如3.5VDC)。 然后可以进行第二测量以有效地测量包含传感器的当前工作点的传感器的子范围(例如,对于3.5VDC的当前操作点,在3.0至4.0VDC的子范围内)。 放大器的增益可能在第二次测量期间提高,以产生更高分辨率的测量。 在一些情况下,可以使用第一测量来确定可以应用的适当的偏移,以便将放大器缩放到包括传感器的当前工作点的传感器的期望子范围。 在一些情况下,可以一起使用两个测量来计算有效地更高分辨率的测量信号。 在某些情况下,这可能允许使用更小和/或更便宜的传感器,同时仍然获得良好的结果。

    PACKAGED SENSOR WITH MULTIPLE SENSORS ELEMENTS
    7.
    发明申请
    PACKAGED SENSOR WITH MULTIPLE SENSORS ELEMENTS 有权
    包装传感器与多个传感器元件

    公开(公告)号:US20130055821A1

    公开(公告)日:2013-03-07

    申请号:US13226370

    申请日:2011-09-06

    IPC分类号: G01L9/06

    摘要: The present disclose relates to sensor including multiple sensor elements. In some cases, the multiple sensor elements may be mounted on a single substrate and each may be configured to sense a single parameter with different resolutions, sensitivities, and/or ranges, and/or the multiple parameters. In one example, multiple pressure sensing die may be mounted in a single package, and each may be configured as a differential pressure sensor, an absolute pressure sensor, and/or a gauge pressure sensor, as desired.

    摘要翻译: 本公开涉及包括多个传感器元件的传感器。 在一些情况下,多个传感器元件可以安装在单个基板上,并且每个传感器元件可被配置为感测具有不同分辨率,灵敏度和/或范围和/或多个参数的单个参数。 在一个示例中,多个压力感测模具可以安装在单个封装中,并且每个可以根据需要被配置为差压传感器,绝对压力传感器和/或表压传感器。

    Flow-through pressure sensor apparatus
    8.
    发明授权
    Flow-through pressure sensor apparatus 有权
    流通式压力传感器装置

    公开(公告)号:US08312774B2

    公开(公告)日:2012-11-20

    申请号:US12389091

    申请日:2009-02-19

    IPC分类号: G01L7/00

    CPC分类号: G01L19/0023

    摘要: A flow-through pressure sensor apparatus that reduces the dead space of a flow tube utilized to provide fluid communication between a pressure sense die and a fluid and with an absolute minimum trapped volume. A cover (e.g., plastic) with two-molded ports can be added to one side of the pressure sense die utilizing molded-in solder pins to improve ruggedness and rigidity. A temperature and a humidity sensor can also be mounted to a substrate (e.g., ceramic) in the flow path and can be connected to a programmable compensation integrated circuit on the opposite side utilizing a clip end of mounting pins or by vias through the substrate outside a pressurized area.

    摘要翻译: 一种流通压力传感器装置,其减少用于在压力感测管芯和流体之间提供流体连通并具有绝对最小捕集体积的流动管的死空间。 具有两个模制端口的盖子(例如塑料)可以使用模制的焊接销添加到压力感测模具的一侧,以改善耐用性和刚度。 温度和湿度传感器也可以安装在流路中的基板(例如陶瓷)上,并且可以使用安装销的夹子端或穿过基板外部的通孔连接到相对侧的可编程补偿集成电路 一个加压区域。

    Increased sensor die adhesion
    10.
    发明授权
    Increased sensor die adhesion 失效
    增加传感器模具附着力

    公开(公告)号:US08375799B2

    公开(公告)日:2013-02-19

    申请号:US12965469

    申请日:2010-12-10

    IPC分类号: G01L9/06

    摘要: Methods and devices for adhesively bonding a sensor die to a substrate are described. In some cases, a sensor assembly may include a pressure sensor die mounted to a substrate with an adhesive. The pressure sensor die may be fabricated to include a back-side having one or more adhesion features (e.g. recesses or indentations), which increase the surface area of the pressure sensor die that is in contact with the adhesive, to thereby increase the adhesion force therebetween. In some cases, the one or more adhesion features may define a non-planar interface between the pressure sensor die and the adhesive which, in some instances, may reduce the formation and/or propagation of cracks in the adhesive, which also may help increase the adhesion force therebetween.

    摘要翻译: 描述了用于将传感器管芯粘合到基底上的方法和装置。 在一些情况下,传感器组件可以包括用粘合剂安装到基底的压力传感器模具。 压力传感器芯片可以被制造成包括具有一个或多个粘合特征(例如凹部或凹陷)的背面,其增加与粘合剂接触的压力传感器模具的表面积,从而增加粘合力 之间。 在一些情况下,一个或多个粘合特征可以限定压力传感器管芯和粘合剂之间的非平面界面,在一些情况下,这可以减少粘合剂中裂纹的形成和/或传播,这也可能有助于增加 其间的粘合力。