公开(公告)号：US20080047340A1

公开(公告)日：2008-02-28

申请号：US11829443

申请日：2007-07-27

申请人： Noboru TOKUYASU ,  Hiroaki Hoshika ,  Kaori Kashio ,  Mituharu Osaka ,  Toshiki Ohtsuki ,  Yoshihiro Sukegawa

发明人： Noboru TOKUYASU ,  Hiroaki Hoshika ,  Kaori Kashio ,  Mituharu Osaka ,  Toshiki Ohtsuki ,  Yoshihiro Sukegawa

IPC分类号： G01F1/688

CPC分类号： G01F1/69 ,  F02D41/187 ,  F02M26/47 ,  F02M2026/003 ,  G01F1/692 ,  G01F1/696 ,  G01F1/699

摘要： A thermal type gas flowmeter comprising a sensor element which, in turn, comprises at least one first heating resistor, two or more resistors in fluid and a second heating resistor which is disposed between the first heating resistor and a housing supporting the sensor element. The first and second heating resistors are electrically independent from each other. A temperature sensing unit is provided between the first and second heating resistors. A temperature of the first or second heating resistor is controlled by a temperature sensed by the temperature sensing unit.

摘要翻译： 一种热式气体流量计，其包括传感器元件，传感器元件又包括至少一个第一加热电阻器，流体中的两个或更多个电阻器和设置在第一加热电阻器和支撑传感器元件的壳体之间的第二加热电阻器。 第一和第二加热电阻器彼此电独立。 温度检测单元设置在第一和第二加热电阻之间。 第一或第二加热电阻器的温度由温度检测单元感测的温度控制。

公开(公告)号：US07552633B2

公开(公告)日：2009-06-30

申请号：US11829443

申请日：2007-07-27

申请人： Noboru Tokuyasu ,  Hiroaki Hoshika ,  Kaori Kashio ,  Mituharu Osaka ,  Toshiki Ohtsuki ,  Yoshihiro Sukegawa

发明人： Noboru Tokuyasu ,  Hiroaki Hoshika ,  Kaori Kashio ,  Mituharu Osaka ,  Toshiki Ohtsuki ,  Yoshihiro Sukegawa

IPC分类号： G01F1/68

CPC分类号： G01F1/69 ,  F02D41/187 ,  F02M26/47 ,  F02M2026/003 ,  G01F1/692 ,  G01F1/696 ,  G01F1/699

摘要： A thermal type gas flowmeter comprising a sensor element which, in turn, comprises at least one first heating resistor, two or more resistors in fluid and a second heating resistor which is disposed between the first heating resistor and a housing supporting the sensor element. The first and second heating resistors are electrically independent from each other. A temperature sensing unit is provided between the first and second heating resistors. A temperature of the first or second heating resistor is controlled by a temperature sensed by the temperature sensing unit.

摘要翻译： 一种热式气体流量计，其包括传感器元件，传感器元件又包括至少一个第一加热电阻器，流体中的两个或更多个电阻器和设置在第一加热电阻器和支撑传感器元件的壳体之间的第二加热电阻器。 第一和第二加热电阻器彼此电独立。 温度检测单元设置在第一和第二加热电阻之间。 第一或第二加热电阻器的温度由温度检测单元感测的温度控制。