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1. 发明申请

US20140190270A1 GAS FLOW RATE MEASURING APPARATUS 有权
标题翻译：气体流速测量装置
公开(公告)号：US20140190270A1
公开(公告)日：2014-07-10
申请号：US14240917
申请日：2012-08-16
申请人： Kazunori Suzuki , Keiichi Nakada , Ryo Sato
发明人： Kazunori Suzuki , Keiichi Nakada , Ryo Sato
IPC分类号： G01F1/64
CPC分类号： G01F1/64 , G01F1/6842 , G01F1/696 , G01F1/6965 , G01F5/00
摘要： Gas flow rate measuring apparatus comprising resistive element disposed in a gas flow path, a gas flow rate detection circuit, and a gas temperature detection element or a substrate temperature detection element. The detection circuit detects a current flowing through the resistive element, or a voltage generated in response to the current to output a gas flow rate detection signal in accordance with a flow rate of gas flowing. The apparatus corrects characteristics of the gas flow rate detection signal on the basis of a temperature detection signal obtained from these elements and includes signal conversion means for correcting a characteristic bend displaced by more than a certain fixed amount from target characteristics.
摘要翻译：气体流量测量装置包括设置在气体流路中的电阻元件，气体流量检测电路和气体温度检测元件或基板温度检测元件。检测电路检测流过电阻元件的电流或响应电流而产生的电压，以根据气体流量输出气体流量检测信号。该装置基于从这些元件获得的温度检测信号来校正气体流量检测信号的特性，并且包括用于校正从目标特性偏移超过一定固定量的特征弯曲的信号转换装置。

2. 发明授权

US07721599B2 Reduced resistance thermal flow measurement device 失效
标题翻译：降低电阻热流量测量装置
公开(公告)号：US07721599B2
公开(公告)日：2010-05-25
申请号：US11814308
申请日：2006-02-20
申请人： Masahiro Matsumoto , Hiroshi Nakano , Masamichi Yamada , Keiji Hanzawa , Izumi Watanabe , Keiichi Nakada , Yasuhiro Kanamaru
发明人： Masahiro Matsumoto , Hiroshi Nakano , Masamichi Yamada , Keiji Hanzawa , Izumi Watanabe , Keiichi Nakada , Yasuhiro Kanamaru
IPC分类号： G01F1/68
CPC分类号： G01F15/006 , G01F1/6845 , G01F1/692
摘要： Conventional thermal flow measurement devices lack consideration for automobiles in severe environments. A detection element of the thermal flow measurement device according to the present invention is structured by the provision of a planar substrate made of a material having good thermal conductivity, such as silicon or ceramic, with a thin-walled portion (diaphragm). On the surface of the thin-walled portion, the detection element comprises a heat element as a heater heated to a temperature being different to a predetermined extent from the temperature of the air flow to be measured, temperature-detecting resistors as temperature-detecting means on both sides of the heat element, wiring portions formed of electrical conductors that draw signal lines from the heat element and the temperature-detecting resistors and that have a melting point of 2000° C. or higher, and pads.
摘要翻译：传统的热流测量装置在恶劣环境中缺乏汽车的考虑。根据本发明的热流测量装置的检测元件通过提供由具有良好导热性的材料（例如硅或陶瓷）制成的具有薄壁部分（隔膜）的平面基板构成。在薄壁部分的表面上，检测元件包括作为加热器的加热元件加热到与待测量的空气流的温度不同的温度，作为温度检测装置的温度检测电阻器在加热元件的两侧，由从导热元件和温度检测电阻器吸引信号线并且具有2000℃或更高熔点的电导体形成的布线部分和焊盘。

3. 发明申请

US20080202230A1 Air flow measuring device 有权
标题翻译：气流测量装置
公开(公告)号：US20080202230A1
公开(公告)日：2008-08-28
申请号：US12149242
申请日：2008-04-29
申请人： Hiromu Kikawa , Izumi Watanabe , Shinya Igarashi , Keiichi Nakada , Kei Ueyama
发明人： Hiromu Kikawa , Izumi Watanabe , Shinya Igarashi , Keiichi Nakada , Kei Ueyama
IPC分类号： G01F5/00
CPC分类号： G01F1/6845 , G01F1/6842 , G01F5/00 , G01F15/12
摘要： The present invention provides an air flow measuring device comprising a housing with a sub-passage having a inlet and a outlet for air flow formed in the housing, the sub-passage further having a predefined curvature with a maximum downstream point and a flow measuring element located in the sub-passage at a position at least further downstream from the point.
摘要翻译：本发明提供了一种空气流量测量装置，其包括具有子通道的壳体，该子通道具有形成在壳体中的气流的入口和出口，该子通道还具有具有最大下游点的预定曲率和流量测量元件位于至少在该点下游的位置处的子通道中。

4. 发明授权

US07377161B2 Air flow measuring device provided with a vent in air passage 有权
标题翻译：气流测量装置在空气通道中设有通风口
公开(公告)号：US07377161B2
公开(公告)日：2008-05-27
申请号：US11730716
申请日：2007-04-03
申请人： Hiromu Kikawa , Izumi Watanabe , Shinya Igarashi , Keiichi Nakada , Kei Ueyama
发明人： Hiromu Kikawa , Izumi Watanabe , Shinya Igarashi , Keiichi Nakada , Kei Ueyama
IPC分类号： G01F1/68
CPC分类号： G01F1/6845 , G01F1/6842 , G01F5/00 , G01F15/12
摘要： The present invention provides an air flow measuring device comprising a housing with a sub-passage having a inlet and a outlet for air flow formed in the housing, the sub-passage further having a predefined curvature with a maximum downstream point and a flow measuring element located in the sub-passage at a position at least further downstream from the point.
摘要翻译：本发明提供了一种空气流量测量装置，其包括具有子通道的壳体，该子通道具有形成在壳体中的气流的入口和出口，该子通道还具有具有最大下游点的预定曲率和流量测量元件位于至少在该点下游的位置处的子通道中。

5. 发明授权

US07287424B2 Thermal type flow measurement apparatus having asymmetrical passage for flow rate measurement 有权
标题翻译：具有用于流量测量的不对称通道的热式流量测量装置
公开(公告)号：US07287424B2
公开(公告)日：2007-10-30
申请号：US11210869
申请日：2005-08-25
申请人： Masahiro Matsumoto , Masamichi Yamada , Hiroshi Nakano , Keiji Hanzawa , Keiichi Nakada
发明人： Masahiro Matsumoto , Masamichi Yamada , Hiroshi Nakano , Keiji Hanzawa , Keiichi Nakada
IPC分类号： G01F1/68
CPC分类号： G01F5/00 , G01F1/6845
摘要： IN a thermal type flow measurement apparatus, a heating element is disposed in a fluid passage and generates heat by a passage of a current through itself. A first thermal sensitive element is disposed adjacent upstream of the heating element in a direction of fluid flow to be measured. A second thermal sensitive element is disposed adjacent downstream of the heating element in the direction of fluid flow to be measured. The fluid passage is provided with the heating element, the first thermal sensitive element, and the second thermal sensitive element. The fluid passage has an asymmetric structure with respect to the direction of fluid flow.Means for measuring a difference of temperatures is sensed by the first and the second thermal sensitive elements to produce a voltage according to a fluid flow rate. Heat control means for controlling the passage of the current through the heating element so that a sum with weights of respective temperatures sensed by the first and the second thermal sensitive elements reaches a preset value.
摘要翻译：在热式流量测量装置中，加热元件设置在流体通道中，并且通过自身通过电流而产生热量。第一热敏元件沿着待测量的流体流动的方向设置在加热元件的上游附近。第二热敏元件沿着待测量的流体流动的方向设置在加热元件的下游附近。流体通道设置有加热元件，第一热敏元件和第二热敏元件。流体通道相对于流体流动的方向具有不对称结构。通过第一和第二热敏元件检测用于测量温度差的装置，以根据流体流速产生电压。用于控制通过加热元件的电流的热控制装置，使得由第一和第二热敏元件感测的相应温度的重量达到预设值。

6. 发明授权

US07270000B2 Fluid flow sensor and fluid flow measurement device 有权
标题翻译：流体流量传感器和流体流量测量装置
公开(公告)号：US07270000B2
公开(公告)日：2007-09-18
申请号：US11206820
申请日：2005-08-19
申请人： Keiichi Nakada , Junichi Horie , Hiroshi Nakano , Izumi Watanabe
发明人： Keiichi Nakada , Junichi Horie , Hiroshi Nakano , Izumi Watanabe
IPC分类号： G01F1/68
CPC分类号： G01F1/699 , G01F1/6842 , G01F1/692
摘要： A Thermal type fluid flow sensor comprises a heating resistor formed on a thin film of a substrate, and plural thermal sensitive resistors configuring a bridge circuit. The thermal sensitive resistors are disposed on the thin film of the substrate so as to be located on an adjacent upstream side and an adjacent downstream side of the heating resistor in a stream direction of fluid to be measured. Resistor traces for the thermal sensitive resistors are formed so that the respective thermal sensitive resistors exhibit substantially equal changes in resistance with each other to distortion caused in the thin film.
摘要翻译：热式流体流量传感器包括形成在基板的薄膜上的加热电阻器和构成桥接电路的多个热敏电阻器。热敏电阻器设置在基板的薄膜上，以便沿着待测流体的流动方向位于加热电阻器的相邻上游侧和相邻的下游侧。形成用于热敏电阻器的电阻迹线，使得相应的热敏电阻器在薄膜中产生的失真相对于电阻变化相当大。

7. 发明授权

US07201047B2 Air flow measuring device 有权
标题翻译：气流测量装置
公开(公告)号：US07201047B2
公开(公告)日：2007-04-10
申请号：US11135519
申请日：2005-05-24
申请人： Hiromu Kikawa , Izumi Watanabe , Shinya Igarashi , Keiichi Nakada , Kei Ueyama
发明人： Hiromu Kikawa , Izumi Watanabe , Shinya Igarashi , Keiichi Nakada , Kei Ueyama
IPC分类号： G01F1/68
CPC分类号： G01F1/6845 , G01F1/6842 , G01F5/00 , G01F15/12
摘要： The present invention provides an air flow measuring device comprising a housing with a sub-passage having a inlet and a outlet for air flow formed in the housing, the sub-passage further having a predefined curvature with a maximum downstream point and a flow measuring element located in the sub-passage at a position at least further downstream from the point.
摘要翻译：本发明提供了一种空气流量测量装置，其包括具有子通道的壳体，该子通道具有形成在壳体中的气流的入口和出口，该子通道还具有具有最大下游点的预定曲率和流量测量元件位于至少在该点下游的位置处的子通道中。

8. 发明授权

US07181962B2 Thermal flow sensor 有权
标题翻译：热流量传感器
公开(公告)号：US07181962B2
公开(公告)日：2007-02-27
申请号：US10546174
申请日：2004-05-26
申请人： Masamichi Yamada , Izumi Watanabe , Keiichi Nakada , Junichi Horie
发明人： Masamichi Yamada , Izumi Watanabe , Keiichi Nakada , Junichi Horie
IPC分类号： G01F1/68
CPC分类号： G01F1/6845 , G01F1/698
摘要： A thermal flow sensor which is fabricated at a low cost and has improved reliability. Over a cavity (7) formed in a semiconductor substrate (2), at least a heating resistance (4) is formed near the center of the cavity with an electrical insulation film interposed between the heating resistance and the cavity. The temperature (Th) of the heating resistance (4) is controlled to be higher than the medium temperature (Ta) by a constant temperature (ΔTh=Th−Ta). A distance (Ws) in the direction of airflow from an upstream end of the heating resistance (4) to an upstream end of the electrical insulation film lying over the cavity and the constant temperature (ΔTh) satisfy the following relationship: ΔTh/Ws≦800 (° C./mm) Thus, a thermal flow sensor is provided which can prevent deposition of floating fine particles, such as carbon particles, caused by the thermophoretic effect, can be fabricated at a low cost, and has high reliability.
摘要翻译：一种以低成本制造并具有改进的可靠性的热流传感器。在形成在半导体衬底（2）中的空腔（7）上，在腔的中心附近形成至少一个加热电阻（4），其中电绝缘膜置于加热电阻和空腔之间。加热电阻（4）的温度（Th）被控制为高于介质温度（Ta）恒温（DeltaTh = Th-Ta）。从加热电阻（4）的上游端到位于空腔上的电绝缘膜的上游端和恒温（DeltaTh）的气流方向的距离（Ws）满足以下关系： line-formula description =“In-line Formulas”end =“lead”？> DeltaTh / Ws <= 800（°C./mm)

9. 发明授权

US07137298B2 Thermal air flowmeter 失效
标题翻译：热空气流量计
公开(公告)号：US07137298B2
公开(公告)日：2006-11-21
申请号：US10860326
申请日：2004-06-04
申请人： Masahiro Matsumoto , Masamichi Yamada , Izumi Watanabe , Keiji Hanzawa , Keiichi Nakada
发明人： Masahiro Matsumoto , Masamichi Yamada , Izumi Watanabe , Keiji Hanzawa , Keiichi Nakada
IPC分类号： G01F1/68
CPC分类号： G01F7/00 , G01F1/684 , G01F1/692 , G01F1/6986
摘要： A thermal air flowmeter which improves air flow rate measurement sensitivity, reduces power consumption of a heating element and broadens the measuring range. A heating resistor is provided on insulating film in a thermal insulating area as a rectangular space on a flat substrate; and two resistance temperature detectors are provided upstream and downstream of the heating resistor. The sides of the rectangular thermal insulating area which are parallel to the axis of air flow are longer than its sides which are perpendicular to the axis of air flow.
摘要翻译：一种改善空气流量测量灵敏度的热空气流量计，降低了加热元件的功耗并扩大了测量范围。在隔热区域的绝缘膜上设置加热电阻器作为平坦基板上的矩形空间; 并且在加热电阻器的上游和下游设置两个电阻温度检测器。平行于空气流动轴线的矩形绝热区域的侧面比垂直于气流轴线的侧面长。

10. 发明申请

US20060162442A1 Thermal type flow measurement apparatus 有权
标题翻译：热式流量测量仪
公开(公告)号：US20060162442A1
公开(公告)日：2006-07-27
申请号：US11210869
申请日：2005-08-25
申请人： Masahiro Matsumoto , Masamichi Yamada , Hiroshi Nakano , Keiji Hanzawa , Keiichi Nakada
发明人： Masahiro Matsumoto , Masamichi Yamada , Hiroshi Nakano , Keiji Hanzawa , Keiichi Nakada
IPC分类号： G01F1/68
CPC分类号： G01F5/00 , G01F1/6845
摘要： IN a thermal type flow measurement apparatus, a heating element is disposed in a fluid passage and generates heat by a passage of a current through itself. A first thermal sensitive element is disposed adjacent upstream of the heating element in a direction of fluid flow to be measured. A second thermal sensitive element is disposed adjacent downstream of the heating element in the direction of fluid flow to be measured. The fluid passage is provided with the heating element, the first thermal sensitive element, and the second thermal sensitive element. The fluid passage has an asymmetric structure with respect to the direction of fluid flow. Means for measuring a difference of temperatures is sensed by the first and the second thermal sensitive elements to produce a voltage according to a fluid flow rate. Heat control means for controlling the passage of the current through the heating element so that a sum with weights of respective temperatures sensed by the first and the second thermal sensitive elements reaches a preset value.
摘要翻译：在热式流量测量装置中，加热元件设置在流体通道中，并且通过自身通过电流而产生热量。第一热敏元件沿着待测量的流体流动的方向设置在加热元件的上游附近。第二热敏元件沿着待测量的流体流动的方向设置在加热元件的下游附近。流体通道设置有加热元件，第一热敏元件和第二热敏元件。流体通道相对于流体流动的方向具有不对称结构。通过第一和第二热敏元件检测用于测量温度差的装置，以根据流体流速产生电压。用于控制通过加热元件的电流的热控制装置，使得由第一和第二热敏元件感测的相应温度的重量达到预设值。

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