公开(公告)号：US20090000372A1

公开(公告)日：2009-01-01

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： G01F1/69

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。

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。

公开(公告)号：US20080016958A1

公开(公告)日：2008-01-24

申请号：US11765736

申请日：2007-06-20

申请人： Masahiro Matsumoto ,  Masamichi Yamada ,  Hiroshi Nakano ,  Keiji Hanzawa ,  Yasuhiro Kanamaru

发明人： Masahiro Matsumoto ,  Masamichi Yamada ,  Hiroshi Nakano ,  Keiji Hanzawa ,  Yasuhiro Kanamaru

IPC分类号： G01F1/68

CPC分类号： G01F1/6845 ,  G01F1/692 ,  G01F1/6986

摘要： The coupling capacitance of the wiring portions of a thermal type flow rate measuring apparatus is reduced so as to prevent a drop in the response characteristics. A detection element of the thermal type flow rate measuring apparatus includes a planar substrate made of silicon, ceramic, or the like, in which a diaphragm is formed. On the surface of the diaphragm, there are disposed a heat-generating resistor as a heat-generating element that is heated to a predetermined temperature difference from the temperature of air flow to be measured, a heat-generating element temperature-detecting resistor for detecting the temperature of the heat-generating resistor, and temperature-detecting resistors disposed on both sides of the heat-generating resistor. The detection element also includes wiring portions which have connecting terminals electrically connected to the heat-generating resistor and a wiring pattern electrically connected with the surface of the planar substrate.

摘要翻译： 热式流量测量装置的布线部分的耦合电容减小，以防止响应特性的下降。 热式流量测量装置的检测元件包括其中形成有隔膜的由硅，陶瓷等制成的平面基板。 在隔膜的表面上设置有发热电阻器作为发热元件，其被加热到与要测量的空气流的温度的预定温度差，用于检测的发热元件温度检测电阻器 发热电阻器的温度和设置在发热电阻器两侧的温度检测电阻器。 检测元件还包括具有与发热电阻器电连接的连接端子的布线部分和与平面基板的表面电连接的布线图案。

公开(公告)号：US07617723B2

公开(公告)日：2009-11-17

申请号：US11765736

申请日：2007-06-20

申请人： Masahiro Matsumoto ,  Masamichi Yamada ,  Hiroshi Nakano ,  Keiji Hanzawa ,  Yasuhiro Kanamaru

发明人： Masahiro Matsumoto ,  Masamichi Yamada ,  Hiroshi Nakano ,  Keiji Hanzawa ,  Yasuhiro Kanamaru

IPC分类号： G01F1/68

CPC分类号： G01F1/6845 ,  G01F1/692 ,  G01F1/6986

摘要： The coupling capacitance of the wiring portions of a thermal type flow rate measuring apparatus is reduced so as to prevent a drop in the response characteristics. A detection element of the thermal type flow rate measuring apparatus includes a planar substrate made of silicon, ceramic, or the like, in which a diaphragm is formed. On the surface of the diaphragm, there are disposed a heat-generating resistor as a heat-generating element that is heated to a predetermined temperature difference from the temperature of air flow to be measured, a heat-generating element temperature-detecting resistor for detecting the temperature of the heat-generating resistor, and temperature-detecting resistors disposed on both sides of the heat-generating resistor. The detection element also includes wiring portions which have connecting terminals electrically connected to the heat-generating resistor and a wiring pattern electrically connected with the surface of the planar substrate.

摘要翻译： 热式流量测量装置的布线部分的耦合电容减小，以防止响应特性的下降。 热式流量测量装置的检测元件包括其中形成有隔膜的由硅，陶瓷等制成的平面基板。 在隔膜的表面上设置有发热电阻器作为发热元件，其被加热到与要测量的空气流的温度的预定温度差，用于检测的发热元件温度检测电阻器 发热电阻器的温度和设置在发热电阻器两侧的温度检测电阻器。 检测元件还包括具有与发热电阻器电连接的连接端子的布线部分和与平面基板的表面电连接的布线图案。

公开(公告)号：US20070125169A1

公开(公告)日：2007-06-07

申请号：US10580112

申请日：2003-11-20

申请人： Hiroshi Nakano ,  Masamichi Yamada ,  Masahiro Matsumoto ,  Izumi Watanabe ,  Keiji Hanzawa ,  Keiichi Nakada

发明人： Hiroshi Nakano ,  Masamichi Yamada ,  Masahiro Matsumoto ,  Izumi Watanabe ,  Keiji Hanzawa ,  Keiichi Nakada

IPC分类号： G01F1/68

CPC分类号： G01F1/6965 ,  G01F1/6845

摘要： A thermal air flowmeter having excellent temperature characteristics and improved measurement accuracy. The thermal air flowmeter comprises a temperature sensor disposed in a casing of the air flowmeter, a computing unit for correcting a flow rate detection voltage from a measuring element by using the temperature sensor, and heating temperature control means disposed in a temperature control circuit for performing temperature control of a heating resistor to vary a temperature rise of the heating resistor relative to an air temperature depending on the air temperature. Flow rate detection errors of the thermal air flowmeter caused by an overall temperature change and a temperature change on an intake passage wall surface can be corrected simultaneously and a thermal air flowmeter having superior measurement accuracy can be realized.

摘要翻译： 具有优异的温度特性和改进的测量精度的热空气流量计。 热空气流量计包括设置在空气流量计的壳体中的温度传感器，用于通过使用温度传感器校正来自测量元件的流量检测电压的计算单元，以及设置在温度控制电路中的加热温度控制装置，用于执行 加热电阻器的温度控制以根据空气温度改变加热电阻器相对于空气温度的温度升高。 可以同时校正由总体温度变化和进气通道壁面上的温度变化引起的热空气流量计的流量检测误差，并且可以实现具有优异的测量精度的热空气流量计。

公开(公告)号：US07225669B2

公开(公告)日：2007-06-05

申请号：US11283778

申请日：2005-11-22

申请人： Masahiro Matsumoto ,  Masamichi Yamada ,  Hiroshi Nakano ,  Izumi Watanabe ,  Keiji Hanzawa ,  Keiichi Nakada

发明人： Masahiro Matsumoto ,  Masamichi Yamada ,  Hiroshi Nakano ,  Izumi Watanabe ,  Keiji Hanzawa ,  Keiichi Nakada

IPC分类号： G01F1/68

CPC分类号： G01F1/6845 ,  F02D41/187 ,  G01F1/692 ,  G01F1/696 ,  G01F1/699

摘要： A heating resistance flow rate measuring apparatus which can use a power source of an ECU in an automobile without requiring an expensive protective circuit and regulator. Heating of temperature detecting resistors themselves causes temperature changes on the windward and leeward sides, and these temperature changes depend on the amounts of heat generated by the temperature detecting resistors. The amounts of heat generated by the temperature detecting resistors depend on a voltage value of the ECU power source applied to the temperature detecting resistors, and an error is caused in a sensor output depending on a variation in the voltage of the ECU power source. Based on the finding that suppressing the amount of heat generated by the temperature detecting resistors is effective in avoiding the sensor output error caused depending on a variation in the output voltage of the ECU power source, means for suppressing the amount of heat generated by the temperature detecting resistors is disposed.

摘要翻译： 一种能够在汽车中使用ECU的电源而不需要昂贵的保护电路和调节器的加热电阻流量测量装置。 温度检测电阻本身的加热引起迎风侧风和背风侧的温度变化，这些温度变化取决于温度检测电阻产生的热量。 由温度检测电阻器产生的热量取决于施加到温度检测电阻器的ECU电源的电压值，并且根据ECU电源的电压变化在传感器输出中引起误差。 基于这样的发现，抑制由温度检测电阻产生的热量对于避免根据ECU电源的输出电压的变化而导致的传感器输出误差是有效的，用于抑制由温度产生的热量的装置 设置检测电阻器。

公开(公告)号：US06973826B2

公开(公告)日：2005-12-13

申请号：US11052754

申请日：2005-02-09

申请人： Masahiro Matsumoto ,  Masamichi Yamada ,  Hiroshi Nakano ,  Izumi Watanabe ,  Keiji Hanzawa ,  Keiichi Nakada

发明人： Masahiro Matsumoto ,  Masamichi Yamada ,  Hiroshi Nakano ,  Izumi Watanabe ,  Keiji Hanzawa ,  Keiichi Nakada

IPC分类号： G01F1/698 ,  F02D41/18 ,  G01F1/68 ,  G01F1/684 ,  G01F1/692 ,  G01F1/696 ,  G01F1/699

CPC分类号： G01F1/6845 ,  F02D41/187 ,  G01F1/692 ,  G01F1/696 ,  G01F1/699

摘要： A heating resistance flow rate measuring apparatus which can use a power source of an ECU in an automobile without requiring an expensive protective circuit and regulator. Heating of temperature detecting resistors themselves causes temperature changes on the windward and leeward sides, and these temperature changes depend on the amounts of heat generated by the temperature detecting resistors. The amounts of heat generated by the temperature detecting resistors depend on a voltage value of the ECU power source applied to the temperature detecting resistors, and an error is caused in a sensor output depending on a variation in the voltage of the ECU power source. Based on the finding that suppressing the amount of heat generated by the temperature detecting resistors is effective in avoiding the sensor output error caused depending on a variation in the output voltage of the ECU power source, means for suppressing the amount of heat generated by the temperature detecting resistors is disposed.

摘要翻译： 一种能够在汽车中使用ECU的电源而不需要昂贵的保护电路和调节器的加热电阻流量测量装置。 温度检测电阻本身的加热引起迎风侧风和背风侧的温度变化，这些温度变化取决于温度检测电阻产生的热量。 由温度检测电阻器产生的热量取决于施加到温度检测电阻器的ECU电源的电压值，并且根据ECU电源的电压变化在传感器输出中引起误差。 基于这样的发现，抑制由温度检测电阻产生的热量对于避免根据ECU电源的输出电压的变化而导致的传感器输出误差是有效的，用于抑制由温度产生的热量的装置 设置检测电阻器。

公开(公告)号：US20050120789A1

公开(公告)日：2005-06-09

申请号：US10921206

申请日：2004-08-19

申请人： Masahiro Matsumoto ,  Masamichi Yamada ,  Hiroshi Nakano ,  Izumi Watanabe ,  Keiji Hanzawa ,  Ryo Sato

发明人： Masahiro Matsumoto ,  Masamichi Yamada ,  Hiroshi Nakano ,  Izumi Watanabe ,  Keiji Hanzawa ,  Ryo Sato

IPC分类号： G01F1/698 ,  G01F1/684 ,  G01F1/692 ,  G01F1/696 ,  G01F1/699 ,  G01K7/20 ,  G01F1/68

CPC分类号： G01F1/692 ,  G01F1/6845 ,  G01F1/699 ,  G01K7/20

摘要： A heating resistor type flow-measuring device is capable of adjusting heating temperature of a heating resistor according to the ambient temperature as well as making the initial adjustment. A heating resistor, a thermoresistance, a group of the resistors, and an amplifier constitute a bridge circuit, and leading terminals of the group of resistors are connected to one of input terminals of an amplifier for amplifying an error voltage through MOS transistors. The heating temperature of the heating resistor can be changed by selecting one of the MOS transistors and turning it on.

摘要翻译： 加热电阻式流量测量装置能够根据环境温度调节加热电阻器的加热温度，并进行初始调整。 加热电阻器，热电阻器，一组电阻器和放大器构成桥式电路，并且该组电阻器的引线端子连接到放大器的一个输入端子，用于通过MOS晶体管放大误差电压。 可以通过选择一个MOS晶体管并将其加热来改变加热电阻器的加热温度。

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。

公开(公告)号：US20070089503A1

公开(公告)日：2007-04-26

申请号：US10560896

申请日：2004-03-05

申请人： Hiroshi Nakano ,  Masamichi Yamada ,  Masahiro Matsumoto ,  Izumi Watanabe ,  Keiji Hanzawa

发明人： Hiroshi Nakano ,  Masamichi Yamada ,  Masahiro Matsumoto ,  Izumi Watanabe ,  Keiji Hanzawa

IPC分类号： G01F1/68

CPC分类号： G01F1/6965 ,  G01F1/6842 ,  G01F1/696

摘要： A thermal airflow meter excellent in flow-rate measurement accuracy is provided. The airflow meter has a flow-rate measuring element comprising a heat resistor and a temperature-compensating resistor which are formed on the a first base member. A second base member of the airflow meter, provided with a drive circuit and a signal processor, is housed in a casing holding the flow-rate measuring element. The flow-rate measuring element is disposed in an air passage. Of two temperature sensors for measuring temperature at each of two points in the thermal airflow meter, respectively, a first temperature sensor is provided on the fist substrate of the flow-rate measuring element, and a second temperature sensor is provided inside the casing. The signal processor has a function of computing an airflow rate, an air temperature, and an air passage wall face temperature on the basis of an output signal of the flow-rate measuring element and respective output signals of the first and second sensors.