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公开(公告)号：US07058532B1
公开(公告)日：2006-06-06
申请号：US10111578
申请日：2000-10-30
IPC分类号： G01F1/68
CPC分类号： G01F1/6842 , G01F1/684 , G01F1/6965 , G01F1/6986 , G01F1/699
摘要： A flowmeter for achieving a fluid flow rate value by using calibration curves on the basis of the output of a detection circuit using a bridge circuit (73) containing as constituent resistors respective temperature sensing elements of a flow rate detector containing a heating element (33) and a fluid temperature detector in an indirectly heated type flow rate sensor unit. The bridge circuit (73) varies the circuit characteristic value in plural steps by a multiplexer (731) for selectively connecting the output terminal and any one of the connection terminals between the in-series connected resistors. Plural calibration curves are provided in association with the steps of the circuit characteristic value, and any one of the plural calibration curves is selected in accordance with the step of the circuit characteristic value selected by the multiplexer (731). The flow rate range to be measured is set every calibration curve, and the multiplexer (731) is controlled in accordance with the fluid flow rate value thus achieved, and the calibration curve corresponding to the flow rate range to which the flow rate value belongs. According to this flowmeter, the flow rate can be measured with excellent precision over a board flow rate range.
摘要翻译： 一种流量计，用于通过使用使用包含作为构成电阻器的桥式电路（73）的检测电路的输出来使用校准曲线来实现流体流量值，所述桥式电路包括含有加热元件（33）的流量检测器的温度感测元件， 以及间接加热型流量传感器单元中的流体温度检测器。 桥接电路73通过用于选择性地连接输出端子和串联连接的电阻器中的任何一个连接端子的多路复用器（731）在多个步骤中改变电路特性值。 与电路特性值的步骤相关联地提供多个校准曲线，并且根据由多路复用器选择的电路特性值的步骤选择多个校准曲线中的任何一个。 每个校准曲线设定要测量的流量范围，并且根据如此实现的流体流量值和与流量值所属的流量范围相对应的校准曲线来控制多路复用器（731）。 根据这种流量计，可以在板流量范围内以极好的精度测量流量。
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公开(公告)号：US20050261842A1
公开(公告)日：2005-11-24
申请号：US11191848
申请日：2005-07-28
CPC分类号： G01F1/6842 , G01F1/684 , G01F1/6965 , G01F1/6986 , G01F1/699
摘要： A flowmeter for achieving a fluid flow rate value by using calibration curves on the basis of the output of a detection circuit using a bridge circuit (73) containing as constituent resistors respective temperature sensing elements of a flow rate detector containing a heating element (33) and a fluid temperature detector in an indirectly heated type flow rate sensor unit. The bridge circuit (73) varies the circuit characteristic value in plural steps by a multiplexer (731) for selectively connecting the output terminal and any one of the connection terminals between the in-series connected resistors. Plural calibration curves are provided in association with the steps of the circuit characteristic value, and any one of the plural calibration curves is selected in accordance with the step of the circuit characteristic value selected by the multiplexer (731). The flow rate range to be measured is set every calibration curve, and the multiplexer (731) is controlled in accordance with the fluid flow rate value thus achieved, and the calibration curve corresponding to the flow rate range to which the flow rate value belongs. According to this flowmeter, the flow rate can be measured with excellent precision over a board flow rate range.
摘要翻译： 一种流量计，用于通过使用使用包含作为构成电阻器的桥式电路（73）的检测电路的输出来使用校准曲线来实现流体流量值，所述桥式电路包括含有加热元件（33）的流量检测器的温度感测元件， 以及间接加热型流量传感器单元中的流体温度检测器。 桥接电路73通过用于选择性地连接输出端子和串联连接的电阻器中的任何一个连接端子的多路复用器（731）在多个步骤中改变电路特性值。 与电路特性值的步骤相关联地提供多个校准曲线，并且根据由多路复用器选择的电路特性值的步骤选择多个校准曲线中的任何一个。 每个校准曲线设定要测量的流量范围，并且根据如此实现的流体流量值和与流量值所属的流量范围相对应的校准曲线来控制多路复用器（731）。 根据这种流量计，可以在板流量范围内以极好的精度测量流量。
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3.发明申请Flow rate measuring method and flowmeter, flow rate measuring section package used for them and flow rate measuring unit using them, and piping leakage inspection device using flowmeter 有权流量测量方法和流量计，用于它们的流量测量部件和使用它们的流量测量单元，以及使用流量计的管道泄漏检测装置公开(公告)号：US20060005620A1
公开(公告)日：2006-01-12
申请号：US11198799
申请日：2005-08-05
IPC分类号： G01F1/68
CPC分类号： G01M3/2807 , G01F1/68 , G01F1/6847 , G01F1/699 , G01F7/00
摘要： Measurements are obtained by a computing unit based on an output Vh from an indirectly-heated constant-temperature controlling flow rate measuring section (16) and an output Vout from a two-constant-point temperature difference detecting flow rate measuring sections (18a, 18b). In the flow rate measuring section (16), a heating element (163) is feedback-controlled based on a detected temperature by a heat sensing element (162) to obtain an output Vh based on the feedback-controlled condition. An output Vout is obtained from flow rate measuring sections (18a, 18b) based on the detected temperature difference between a heat sensing element (182) disposed on the liquid-flow-direction upstream side of the flow-rate measuring section (16) and a temperature sensing element disposed on the downstream side. A computing unit outputs as a measurement a flow rate obtained based on the output Vh in a flow rate region where a flow rate is larger than a predetermined boundary flow rate, and outputs as a measurement a flow rate obtained based on the output Vout in a flow rate region where it is less than a boundary flow rate. Accordingly, a flow rate is measured with good precision and sensitivity over a wide flow rate range from a trace-amount flow rate region to a comparatively large flow rate region.
摘要翻译： 由计算单元基于来自间接加热的恒温控制流量测量部（16）的输出Vh和来自两个恒定点温度差检测流量测量部（18a， 18 b）。 在流量测量部分（16）中，基于检测到的温度由热敏元件（162）反馈控制加热元件（163），以基于反馈控制条件获得输出Vh。 基于流量测量部（16）的液流方向上游侧设置的感热元件（182）之间的检测温差，从流量测量部（18a，18b）获得输出Vout， ）和设置在下游侧的温度感测元件。 计算单元作为测量输出在流量大于预定边界流量的流量区域中基于输出Vh获得的流量，并作为测量输出基于输出Vout获得的流量 流量区域小于边界流量。 因此，在从微量流量区域到较大流量区域的宽流量范围内，以高精度和高灵敏度测量流量。
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4.发明授权Device and method of detecting flow rate/liquid kind, and device and method of detecting liquid kind 有权流量/液体种类检测装置及方法，液体种类检测装置及方法公开(公告)号：US07377185B2
公开(公告)日：2008-05-27
申请号：US10564331
申请日：2004-07-09
申请人： Toshiaki Kawanishi , Takayuki Takahata , Kenji Tomonari , Kiyoshi Yamagishi , Atsushi Koike , Akiko Kubota , Shin-ichi Inoue
发明人： Toshiaki Kawanishi , Takayuki Takahata , Kenji Tomonari , Kiyoshi Yamagishi , Atsushi Koike , Akiko Kubota , Shin-ichi Inoue
IPC分类号： G01F1/708
CPC分类号： G01F1/6842 , G01F1/6965 , G01F5/00 , G01F7/00
摘要： A flow rate/liquid type detecting method for detecting the flow rate of a fluid and, at the same time, detecting any one of or both the type of the fluid and the concentration of the fluid, characterized in that: by using a flow rate/liquid type detecting apparatus comprising a main passage through which a fluid to be detected flows, an auxiliary passage branched from the main passage, and a flow rate/liquid type detecting sensor device provided in the auxiliary passage, is provided, and in conducting any one of or both the detection of the type of the fluid to be detected and the detection of the concentration of the fluid to be detected, an auxiliary passage opening/closing valve is closed, and the fluid to be detected is allowed to temporarily stay within the flow rate/liquid type detecting sensor device to conduct any one of or both the detection of the liquid type and the detection of the concentration, and in detecting the flow rate of the fluid to be detected, the auxiliary passage opening/closing valve is opened to allow the fluid to be detected to flow into the flow rate/liquid type detecting sensor device to detect the flow rate.
摘要翻译： 一种流量/液体型检测方法，用于检测流体的流速，同时检测流体的类型和流体的浓度中的任一种或两者，其特征在于：通过使用流量 液体型检测装置，包括被检测流体流过的主通路，从主通道分支的辅助通道和设置在辅助通路中的流量/液体型检测传感器装置，并且进行任何 要检测的流体的类型的检测和要检测的流体的浓度的检测中的一个或两个，辅助通道打开/关闭阀关闭，并且允许待检测的流体暂时停留在内部 流量/液体型检测传感器装置进行液体检测和浓度检测中的任一种或两者，并且在检测待检测流体的流量时，辅助通过 打开开闭阀，使流体被检测流入流量/液体型检测传感器装置，以检测流量。
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5.发明授权Flow rate measuring method and flowmeter, flow rate measuring section package used for them and flow rate measuring unit using them, and piping leakage inspection device using flowmeter 有权流量测量方法和流量计，用于它们的流量测量部件和使用它们的流量测量单元，以及使用流量计的管道泄漏检测装置公开(公告)号：US07028533B2
公开(公告)日：2006-04-18
申请号：US11198799
申请日：2005-08-05
IPC分类号： G01M3/04
CPC分类号： G01M3/2807 , G01F1/68 , G01F1/6847 , G01F1/699 , G01F7/00
摘要： Measurements are obtained by a computing unit based on an output Vh from an indirectly-heated constant-temperature controlling flow rate measuring section (16) and an output Vout from a two-constant-point temperature difference detecting flow rate measuring sections (18a, 18b). In the flow rate measuring section (16), a heating element (163) is feedback-controlled based on a detected temperature by a heat sensing element (162) to obtain an output Vh based on the feedback-controlled condition. An output Vout is obtained from flow rate measuring sections (18a, 18b) based on the detected temperature difference between a heat sensing element (182) disposed on the liquid-flow-direction upstream side of the flow rate measuring section (16) and a temperature sensing element disposed on the downstream side. A computing unit outputs as a measurement a flow rate obtained based on the output Vh in a flow rate region where a flow rate is larger than a predetermined boundary flow rate, and outputs as a measurement a flow rate obtained based on the output Vout in a flow rate region where it is less than a boundary flow rate. Accordingly, a flow rate is measured with good precision and sensitivity over a wide flow rate range from a trace-amount flow rate region to a comparatively large flow rate region.
摘要翻译： 由计算单元基于来自间接加热的恒温控制流量测量部（16）的输出Vh和来自两个恒定点温度差检测流量测量部（18a， 18 b）。 在流量测量部分（16）中，基于检测到的温度由热敏元件（162）反馈控制加热元件（163），以基于反馈控制条件获得输出Vh。 基于流量测量部（16）的液流方向上游侧设置的感热元件（182）之间的检测温度差，从流量测量部（18a，18b）获得输出Vout， 以及设置在下游侧的温度感测元件。 计算单元作为测量输出在流量大于预定边界流量的流量区域中基于输出Vh获得的流量，并作为测量输出基于输出Vout获得的流量 流量区域小于边界流量。 因此，在从微量流量区域到较大流量区域的宽流量范围内，以高精度和高灵敏度测量流量。
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6.发明申请Flow rate measuring method and flowmeter, flow rate measuring section package used for them and flow rate measuring unit using them, and piping leakage inspection device using flowmeter 有权流量测量方法和流量计，用于它们的流量测量部件和使用它们的流量测量单元，以及使用流量计的管道泄漏检测装置公开(公告)号：US20050155421A1
公开(公告)日：2005-07-21
申请号：US10508095
申请日：2003-03-18
CPC分类号： G01M3/2807 , G01F1/68 , G01F1/6847 , G01F1/699 , G01F7/00
摘要： Measurements are obtained by a computing unit based on an output Vh from an indirectly-heated constant-temperature controlling flow rate measuring section (16) and an output Vout from a two-constant-point temperature difference detecting flow rate measuring sections (18a, 18b). In the flow rate measuring section (16), a heating element (163) is feedback-controlled based on a detected temperature by a heat sensing element (162) to obtain an output Vh based on the feedback-controlled condition. An output Vout is obtained from flow rate measuring sections (18a, 18b) based on the detected temperature difference between a heat sensing element (182) disposed on the liquid-flow-direction upstream side of the flow rate measuring section (16) and a temperature sensing element disposed on the downstream side. A computing unit outputs as a measurement a flow rate obtained based on the output Vh in a flow rate region where a flow rate is larger than a predetermined boundary flow rate, and outputs as a measurement a flow rate obtained based on the output Vout in a flow rate region where it is less than a boundary flow rate. Accordingly, a flow rate is measured with good precision and sensitivity over a wide flow rate range from a trace-amount flow rate region to a comparatively large flow rate region.
摘要翻译： 由计算单元基于来自间接加热的恒温控制流量测量部（16）的输出Vh和来自两个恒定点温度差检测流量测量部（18a， 18 b）。 在流量测量部分（16）中，基于检测到的温度由热敏元件（162）反馈控制加热元件（163），以基于反馈控制条件获得输出Vh。 基于流量测量部（16）的液流方向上游侧设置的感热元件（182）之间的检测温度差，从流量测量部（18a，18b）获得输出Vout， 以及设置在下游侧的温度感测元件。 计算单元作为测量输出在流量大于预定边界流量的流量区域中基于输出Vh获得的流量，并作为测量输出基于输出Vout获得的流量 流量区域小于边界流量。 因此，在从微量流量区域到较大流量区域的宽流量范围内，以高精度和高灵敏度测量流量。
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公开(公告)号：US06604417B1
公开(公告)日：2003-08-12
申请号：US09763290
申请日：2001-02-20
IPC分类号： G01F1684
CPC分类号： G01F15/08 , G01F1/684 , G01F1/6842 , G01F1/699 , G01F15/12
摘要： A strainer integrated flowmeter 210 is constituted by a strainer section 203 provided with a housing 202 having a flow passage 207 formed therein, a filter member 209 and a filter member insertion cylinder 210; and a flowmeter section 204 provided with a housing 202 having a flow passage 208 formed therein and a flow rate sensor 226. The housings 202 of both the strainer section 203 and flowmeter section 204 are integrated, and the flowmeter section 204 is disposed at downstream side. A vent hole 215 is formed in the housing 202 so as to be in communication with the flow passage 207.
摘要翻译： 过滤器一体型流量计210由设置有形成有流路207的壳体202的过滤器部分203，过滤构件209和过滤构件插入筒210构成; 设置有形成有流路208的壳体202和流量传感器226的流量计部分204.过滤器部分203和流量计部分204两者的壳体202被一体化，流量计部分204设置在下游侧 。 在壳体202中形成有与流路207连通的排气孔215。
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8.发明授权Device and method of detecting flow rate/liquid kind, and device and method of detecting liquid kind 有权流量/液体种类检测装置及方法，液体种类检测装置及方法公开(公告)号：US07647844B2
公开(公告)日：2010-01-19
申请号：US11956650
申请日：2007-12-14
申请人： Toshiaki Kawanishi , Takayuki Takahata , Kenji Tomonari , Kiyoshi Yamagishi , Atsushi Koike , Akiko Kubota , Shin-ichi Inoue
发明人： Toshiaki Kawanishi , Takayuki Takahata , Kenji Tomonari , Kiyoshi Yamagishi , Atsushi Koike , Akiko Kubota , Shin-ichi Inoue
CPC分类号： G01F1/6842 , G01F1/684 , G01F1/692 , G01F1/6965 , G01F1/6986 , G01F5/00 , G01N25/18
摘要： A flow rate/liquid type detecting method for detecting the flow rate of a fluid and, at the same time, detecting any one of or both the type of the fluid and the concentration of the fluid, characterized in that, by using a flow rate/liquid type detecting apparatus comprising: a main passage through which a fluid to be detected flows, an auxiliary passage branched from the main passage, and a flow rate/liquid type detecting sensor device provided in the auxiliary passage, is provided, and in conducting any one of or both the detection of the type of the fluid and the detection of the concentration of the fluid, the auxiliary passage opening/closing valve is closed, and the fluid is allowed to temporarily stay within the flow rate/liquid type detecting sensor device to conduct any one of or both the detection of the liquid type and the detection of the concentration, and in detecting the flow rate of the fluid detected, the auxiliary passage opening/closing valve is opened to allow the fluid to flow into the flow rate/liquid type detecting sensor device to detect the flow rate.
摘要翻译： 一种流量/液体型检测方法，用于检测流体的流量，同时检测流体的类型和流体的浓度中的任何一种或两者，其特征在于，通过使用流量 液体型检测装置，包括：被检测流体流过的主通路，从主通道分支的辅助通道，以及设置在辅助通路中的流量/液体型检测传感器装置，并且在导通 流体类型的检测和流体浓度的检测中的任何一个或两者关闭，辅助通道开闭阀被关闭，并且允许流体暂时停留在流量/液体型检测传感器内 用于进行液体类型的检测和浓度检测中的任何一种或两者的装置，并且在检测检测到的流体的流量时，打开辅助通道打开/关闭阀，以允许 流体流入流量/液体型检测传感器装置以检测流量。
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9.发明申请Device and Method of Detecting Flow Rate/Liquid Kind, and Device and Method of Detecting Liquid Kind 有权检测流量/液体种类的装置和方法，以及检测液体种类的装置和方法公开(公告)号：US20090000396A1
公开(公告)日：2009-01-01
申请号：US11956650
申请日：2007-12-14
申请人： Toshiaki Kawanishi , Takayuki Takahata , Kenji Tomonari , Kiyoshi Yamagishi , Atsushi Koike , Akiko Kubota , Shin-ichi Inoue
发明人： Toshiaki Kawanishi , Takayuki Takahata , Kenji Tomonari , Kiyoshi Yamagishi , Atsushi Koike , Akiko Kubota , Shin-ichi Inoue
IPC分类号： G01F1/708
CPC分类号： G01F1/6842 , G01F1/684 , G01F1/692 , G01F1/6965 , G01F1/6986 , G01F5/00 , G01N25/18
摘要： A flow rate/liquid type detecting method for detecting the flow rate of a fluid and, at the same time, detecting any one of or both the type of the fluid and the concentration of the fluid, characterized in that, by using a flow rate/liquid type detecting apparatus comprising: a main passage through which a fluid to be detected flows, an auxiliary passage branched from the main passage, and a flow rate/liquid type detecting sensor device provided in the auxiliary passage, is provided, and in conducting any one of or both the detection of the type of the fluid and the detection of the concentration of the fluid, the auxiliary passage opening/closing valve is closed, and the fluid is allowed to temporarily stay within the flow rate/liquid type detecting sensor device to conduct any one of or both the detection of the liquid type and the detection of the concentration, and in detecting the flow rate of the fluid detected, the auxiliary passage opening/closing valve is opened to allow the fluid to flow into the flow rate/liquid type detecting sensor device to detect the flow rate.
摘要翻译： 一种流量/液体型检测方法，用于检测流体的流量，同时检测流体的类型和流体的浓度中的任何一种或两者，其特征在于，通过使用流量 液体型检测装置，包括：被检测流体流过的主通路，从主通道分支的辅助通道，以及设置在辅助通路中的流量/液体型检测传感器装置，并且在导通 流体类型的检测和流体浓度的检测中的任何一个或两者关闭，辅助通道开闭阀被关闭，并且允许流体暂时停留在流量/液体型检测传感器内 用于进行液体类型的检测和浓度检测中的任何一种或两者的装置，并且在检测检测到的流体的流量时，打开辅助通道打开/关闭阀，以允许 流体流入流量/液体型检测传感器装置以检测流量。
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公开(公告)号：US06973827B2
公开(公告)日：2005-12-13
申请号：US10508095
申请日：2003-03-18
CPC分类号： G01M3/2807 , G01F1/68 , G01F1/6847 , G01F1/699 , G01F7/00
摘要： Measurements are obtained by a computing unit based on an output Vh from an indirectly-heated constant-temperature controlling flow rate measuring section (16) and an output Vout from a two-constant-point temperature difference detecting flow rate measuring sections (18a, 18b). In the flow rate measuring section (16), a heating element (163) is feedback-controlled based on a detected temperature by a heat sensing element (162) to obtain an output Vh based on the feedback-controlled condition. An output Vout is obtained from flow rate measuring sections (18a, 18b) based on the detected temperature difference between a heat sensing element (182) disposed on the liquid-flow-direction upstream side of the flow rate measuring section (16) and a temperature sensing element disposed on the downstream side. A computing unit outputs as a measurement a flow rate obtained based on the output Vh in a flow rate region where a flow rate is larger than a predetermined boundary flow rate, and outputs as a measurement a flow rate obtained based on the output Vout in a flow rate region where it is less than a boundary flow rate. Accordingly, a flow rate is measured with good precision and sensitivity over a wide flow rate range from a trace-amount flow rate region to a comparatively large flow rate region.
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