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公开(公告)号：US07610117B2
公开(公告)日：2009-10-27
申请号：US11229912
申请日：2005-09-19
IPC分类号： G06F19/00
CPC分类号： G01F1/363 , G05D7/0635 , Y10T137/7761
摘要： One embodiment of the present invention can include a flow control device comprising an inlet, an outlet, a pressure loss element between the inlet and outlet, a pressure sensor located upstream from the constriction configured to measure a first pressure of a fluid flowing through the flow control device, a pressure sensor located downstream from the constriction, configured to measure a second pressure of the fluid flowing through the flow control device; and a controller coupled to the first pressure sensor and the second pressure sensor to generate a valve drive signal. The controller can generate a valve control signal based on a differential between the first pressure and the second pressure during a first mode of operation. The controller can also generate a valve control signal based on a measured pressure at a particular pressure sensor during a second mode of operation. The mode of operation can automatically switch.
摘要翻译： 本发明的一个实施例可以包括流量控制装置，其包括入口，出口，在入口和出口之间的压力损失元件，位于收缩部上游的压力传感器，其被配置成测量流过流动的流体的第一压力 控制装置，位于收缩部下游的压力传感器，被配置为测量流过所述流量控制装置的流体的第二压力; 以及耦合到第一压力传感器和第二压力传感器以产生阀驱动信号的控制器。 控制器可以在第一操作模式期间基于第一压力和第二压力之间的差值产生阀控制信号。 控制器还可以在第二操作模式期间基于特定压力传感器处的测量压力产生阀门控制信号。 操作模式可以自动切换。
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公开(公告)号：US08015995B2
公开(公告)日：2011-09-13
申请号：US12777019
申请日：2010-05-10
IPC分类号： G05D7/06
CPC分类号： G01F1/363 , G05D7/0635 , Y10T137/0379 , Y10T137/7761 , Y10T137/8326
摘要： One embodiment of the present invention can include a flow control device that comprises an inlet, an outlet in fluid communication with the inlet, a pressure sensor, which may or may not be the only pressure sensor of the fluid control device, and a controller coupled to the pressure sensor. The controller can be configured to generate a valve control signal based on a measured pressure at a single pressure sensor.
摘要翻译： 本发明的一个实施例可以包括流量控制装置，其包括入口，与入口流体连通的出口，压力传感器，其可以是或可以不是流体控制装置的唯一压力传感器，以及控制器 到压力传感器。 控制器可以被配置为基于在单个压力传感器处的测量压力产生阀控制信号。
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公开(公告)号：US07740024B2
公开(公告)日：2010-06-22
申请号：US11054467
申请日：2005-02-09
IPC分类号： G05D7/06
CPC分类号： G01F1/363 , G05D7/0635 , Y10T137/0379 , Y10T137/7761 , Y10T137/8326
摘要： One embodiment of the present invention can include a flow control device a flow control device that comprises an inlet, an outlet in fluid communication with the inlet, a pressure sensor, which may or may not be the only pressure sensor of the fluid control device, and a controller coupled to the pressure sensor. The controller can be configured to generate a valve control signal based on a measured pressure at a single pressure sensor.
摘要翻译： 本发明的一个实施例可以包括流量控制装置，流量控制装置，其包括入口，与入口流体连通的出口，压力传感器，其可以是或可以不是流体控制装置的唯一压力传感器， 以及耦合到所述压力传感器的控制器。 控制器可以被配置为基于在单个压力传感器处的测量压力产生阀控制信号。
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公开(公告)号：US20100236643A1
公开(公告)日：2010-09-23
申请号：US12777019
申请日：2010-05-10
IPC分类号： F16K31/12
CPC分类号： G01F1/363 , G05D7/0635 , Y10T137/0379 , Y10T137/7761 , Y10T137/8326
摘要： One embodiment of the present invention can include a flow control device that comprises an inlet, an outlet in fluid communication with the inlet, a pressure sensor, which may or may not be the only pressure sensor of the fluid control device, and a controller coupled to the pressure sensor. The controller can be configured to generate a valve control signal based on a measured pressure at a single pressure sensor.
摘要翻译： 本发明的一个实施例可以包括流量控制装置，其包括入口，与入口流体连通的出口，压力传感器，其可以是或可以不是流体控制装置的唯一压力传感器，以及控制器 到压力传感器。 控制器可以被配置为基于在单个压力传感器处的测量压力产生阀控制信号。
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公开(公告)号：US07885773B2
公开(公告)日：2011-02-08
申请号：US12253732
申请日：2008-10-17
IPC分类号： G06F19/00
CPC分类号： G01F1/44 , G01F1/363 , G01F1/50 , G01F25/0007 , G05D7/0635 , G06N7/02
摘要： Embodiments disclosed herein provide restrictive-flow flow measurement devices, valve improvements and signal control devices and processes that control the flow of liquids, including control processes for single-liquid calibration. In some embodiments, a fluid flow device can be calibrated using a single standard calibration fluid. The fluid flow of a first fluid through a flow meter is measured by calculating a first pressure difference between pressures sensed by two pressure sensors of the flow meter. The fluid flow of a second fluid through the flow meter is measured by calculating a second pressure difference between pressures sensed by the same two pressure sensors. A calibration coefficient is determined based upon the relationship between the flow rate, the fluid density and the calculated pressure difference for the first and second fluids. A relationship between the calibration coefficient and the kinematic viscosity of each fluid is then determined and stored.
摘要翻译： 本文公开的实施例提供了限制性流量测量装置，阀门改进和控制液体流动的信号控制装置和过程，包括用于单液体校准的控制过程。 在一些实施例中，流体流动装置可以使用单个标准校准流体进行校准。 通过流量计的两个压力传感器感测到的压力之间的第一压力差来测量通过流量计的第一流体的流体流量。 通过流量计的第二流体的流体流量通过计算由相同的两个压力传感器感测的压力之间的第二压力差来测量。 基于第一和第二流体的流量，流体密度和计算的压力差之间的关系来确定校准系数。 然后确定并存储每种流体的校准系数与运动粘度之间的关系。
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公开(公告)号：US07292945B2
公开(公告)日：2007-11-06
申请号：US10521697
申请日：2003-07-18
IPC分类号： G06F19/00
CPC分类号： G01F1/44 , G01F1/363 , G01F1/50 , G01F25/0007 , G05D7/0635 , G06N7/02
摘要： The present invention provides restrictive-flow flow measurement devices, valve improvements and signal control devices and processes that control the flow of liquids, including control processes for single-liquid calibration.
摘要翻译： 本发明提供限制流量测量装置，阀门改进和控制液体流动的信号控制装置和过程，包括用于单液体校准的控制过程。
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公开(公告)号：US20110248043A1
公开(公告)日：2011-10-13
申请号：US13016255
申请日：2011-01-28
IPC分类号： B67D7/08
CPC分类号： G01F1/44 , G01F1/363 , G01F1/50 , G01F25/0007 , G05D7/0635 , G06N7/02
摘要： Embodiments disclosed herein provide restrictive-flow flow measurement devices, valve improvements and signal control devices and processes that control the flow of liquids, including control processes for single-liquid calibration. In some embodiments, a fluid flow device can be calibrated using a single standard calibration fluid. The fluid flow of a first fluid through a flow meter is measured by calculating a first pressure difference between pressures sensed by two pressure sensors of the flow meter. The fluid flow of a second fluid through the flow meter is measured by calculating a second pressure difference between pressures sensed by the same two pressure sensors. A calibration coefficient is determined based upon the relationship between the flow rate, the fluid density and the calculated pressure difference for the first and second fluids. A relationship between the calibration coefficient and the kinematic viscosity of each fluid is then determined and stored.
摘要翻译： 本文公开的实施例提供了限制性流量测量装置，阀门改进和控制液体流动的信号控制装置和过程，包括用于单液体校准的控制过程。 在一些实施例中，流体流动装置可以使用单个标准校准流体进行校准。 通过流量计的两个压力传感器感测到的压力之间的第一压力差来测量通过流量计的第一流体的流体流量。 通过流量计的第二流体的流体流量通过计算由相同的两个压力传感器感测的压力之间的第二压力差来测量。 基于第一和第二流体的流量，流体密度和计算的压力差之间的关系来确定校准系数。 然后确定并存储每种流体的校准系数与运动粘度之间的关系。
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公开(公告)号：US07447600B2
公开(公告)日：2008-11-04
申请号：US11897740
申请日：2007-08-31
IPC分类号： G06F19/00
CPC分类号： G01F1/44 , G01F1/363 , G01F1/50 , G01F25/0007 , G05D7/0635 , G06N7/02
摘要： Embodiments disclosed herein provide restrictive-flow flow measurement devices, valve improvements and signal control devices and processes that control the flow of liquids, including control processes for single-liquid calibration. In some embodiments, a valve can be adjusted by application of fuzzy logic which involves quantizing input variables into the degree to which a small set of logical values is true. In one embodiment, variables related to flow rate and change in flow rate over time can be compared to membership functions to generate fuzzy inputs, based upon which fuzzy outputs can be generated.
摘要翻译： 本文公开的实施例提供了限制性流量测量装置，阀门改进和控制液体流动的信号控制装置和过程，包括用于单液体校准的控制过程。 在一些实施例中，可以通过应用模糊逻辑来调节阀，其涉及将输入变量量化到一小组逻辑值为真的程度。 在一个实施例中，与流量和流速随时间变化相关的变量可以与隶属函数相比较，以便基于哪个模糊输出可以产生模糊输入。
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公开(公告)号：US08155896B2
公开(公告)日：2012-04-10
申请号：US13016255
申请日：2011-01-28
IPC分类号： G06F19/00
CPC分类号： G01F1/44 , G01F1/363 , G01F1/50 , G01F25/0007 , G05D7/0635 , G06N7/02
摘要： Embodiments disclosed herein provide restrictive-flow flow measurement devices, valve improvements and signal control devices and processes that control the flow of liquids, including control processes for single-liquid calibration. In some embodiments, a fluid flow device can be calibrated using a single standard calibration fluid. The fluid flow of a first fluid through a flow meter is measured by calculating a first pressure difference between pressures sensed by two pressure sensors of the flow meter. The fluid flow of a second fluid through the flow meter is measured by calculating a second pressure difference between pressures sensed by the same two pressure sensors. A calibration coefficient is determined based upon the relationship between the flow rate, the fluid density and the calculated pressure difference for the first and second fluids. A relationship between the calibration coefficient and the kinematic viscosity of each fluid is then determined and stored.
摘要翻译： 本文公开的实施例提供了限制性流量测量装置，阀门改进和控制液体流动的信号控制装置和过程，包括用于单液体校准的控制过程。 在一些实施例中，流体流动装置可以使用单个标准校准流体进行校准。 通过流量计的两个压力传感器感测到的压力之间的第一压力差来测量通过流量计的第一流体的流体流量。 通过流量计的第二流体的流体流量通过计算由相同的两个压力传感器感测的压力之间的第二压力差来测量。 基于第一和第二流体的流量，流体密度和计算的压力差之间的关系来确定校准系数。 然后确定并存储每种流体的校准系数与运动粘度之间的关系。
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公开(公告)号：US20090113985A1
公开(公告)日：2009-05-07
申请号：US12253732
申请日：2008-10-17
IPC分类号： G01F25/00
CPC分类号： G01F1/44 , G01F1/363 , G01F1/50 , G01F25/0007 , G05D7/0635 , G06N7/02
摘要： Embodiments disclosed herein provide restrictive-flow flow measurement devices, valve improvements and signal control devices and processes that control the flow of liquids, including control processes for single-liquid calibration. In some embodiments, a fluid flow device can be calibrated using a single standard calibration fluid. The fluid flow of a first fluid through a flow meter is measured by calculating a first pressure difference between pressures sensed by two pressure sensors of the flow meter. The fluid flow of a second fluid through the flow meter is measured by calculating a second pressure difference between pressures sensed by the same two pressure sensors. A calibration coefficient is determined based upon the relationship between the flow rate, the fluid density and the calculated pressure difference for the first and second fluids. A relationship between the calibration coefficient and the kinematic viscosity of each fluid is then determined and stored.
摘要翻译： 本文公开的实施例提供了限制性流量测量装置，阀门改进和控制液体流动的信号控制装置和过程，包括用于单液体校准的控制过程。 在一些实施例中，流体流动装置可以使用单个标准校准流体进行校准。 通过流量计的两个压力传感器感测到的压力之间的第一压力差来测量通过流量计的第一流体的流体流量。 通过流量计的第二流体的流体流量通过计算由相同的两个压力传感器感测的压力之间的第二压力差来测量。 基于第一和第二流体的流量，流体密度和计算的压力差之间的关系来确定校准系数。 然后确定并存储每种流体的校准系数与运动粘度之间的关系。
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