-
公开(公告)号：US4881407A
公开(公告)日：1989-11-21
申请号：US105809
申请日：1987-10-08
CPC分类号： G01F1/698 , G01F1/6842 , G01F1/692 , G01P5/12
摘要： The bobbin (21) of the heating resistor (1) is made by zirconia or glass fiber. On the surface of the bobbin, a platinum film (31) or a platinum wire (23) are formed. At both ends of the heating resistor, the heating resistor is supported by a pair of supporting conductors (25).
摘要翻译： 加热电阻体（1）的筒管（21）由氧化锆或玻璃纤维制成。 在筒管的表面上形成铂膜（31）或铂丝（23）。 在加热电阻器的两端，加热电阻由一对支撑导体（25）支撑。
-
公开(公告)号：USRE34104E
公开(公告)日：1992-10-20
申请号：US620736
申请日：1990-12-03
CPC分类号： G01F1/698 , G01F1/6842 , G01F1/692 , G01P5/12
摘要： The bobbin (21) of the heating resistor (1) is made by zirconia or glass fiber. On the surface of the bobbin, a platinum film (31) or a platimum wire (23) are formed. At both ends of the heating resistor, the heating resistor is supported by a pair of supporting conductors (25).
-
公开(公告)号：US4909079A
公开(公告)日：1990-03-20
申请号：US370073
申请日：1989-06-23
摘要： A heat wire type airflow meter having a resistance element disposed within an airflow, the rate of which is measured, and a detection circuit for producing an airflow rate signal by detecting resistance change of the element depending on the airflow rate, in which the resistance element comprises a heat wire coil, lead wires attached to the heat wire coil at both ends thereof, a ceramic layer covering the heat wire coil and junctions of the heat wire coil and the lead wires to form a cylindrical member in such a manner that the heat wire coil is contained therein coaxially and along an inner surface thereof and a glass layer for coating an outer surface of the cylindrical member.
摘要翻译： 一种热线式气流计，其具有设置在气流中的电阻元件，其速率被测量;以及检测电路，用于通过根据气流速度检测元件的电阻变化来产生气流速率信号，其中电阻元件 包括热丝线圈，在其两端附接到所述热丝线圈的引线，覆盖所述热线线圈的陶瓷层和所述热线线圈和所述引线的接合部，以形成圆柱形部件，使得所述热 线圈同轴并沿其内表面包含玻璃层，用于涂覆圆柱形构件的外表面。
-
公开(公告)号：US5817932A
公开(公告)日：1998-10-06
申请号：US510571
申请日：1995-08-02
申请人： Yutaka Nishimura , Izumi Watanabe
发明人： Yutaka Nishimura , Izumi Watanabe
摘要： An intake air flow measuring apparatus for internal combustion engine apparatus has a thermal type air flow meter, a unit for correcting the response delay of the thermal type air flow meter, and a unit for detecting the direction of the flow of intake air so that an amount of reverse air flow is detected by the response delay correcting unit and air flow direction unit, and that a true amount of sucked air flow is calculated from the output of the thermal type air flow meter and the amount of reverse air flow.
摘要翻译： 用于内燃机装置的进气流量测量装置具有热式空气流量计，用于校正热式空气流量计的响应延迟的单元和用于检测进气流动方向的单元， 响应延迟校正单元和空气流动方向单元检测反向气流的量，并且根据热式空气流量计的输出和反向气流的量计算吸入空气流量的真实量。
-
公开(公告)号：US08203102B2
公开(公告)日：2012-06-19
申请号：US12724399
申请日：2010-03-15
IPC分类号： H05B1/01
CPC分类号： G01F1/692 , G01F1/684 , G01F1/6845 , G01F1/698
摘要： A thermal type flow sensor measures a flow rate of a fluid by means of a heat resistive element having a temperature dependency. The sensor is comprised of: plural heat resistive elements used for a flow rate measurement; and a driver circuit for controlling a current applied to these heat resistive elements to cause their heating. The driver circuit is configured to sense a resistance change of a lower-temperature side heat resistive element among the plural heat resistive elements and to control the current to be applied to the plural heat resistive elements in accordance with a sensed value of the lower-resistance's variation.
摘要翻译： 热式流量传感器通过具有温度依赖性的耐热元件来测量流体的流量。 传感器包括：用于流量测量的多个热阻元件; 以及用于控制施加到这些热阻元件以引起其加热的电流的驱动器电路。 驱动电路被配置为感测多个耐热元件中的低温侧热电阻元件的电阻变化，并且根据下电阻元件的感测值来控制施加到多个耐热元件的电流 变异。
-
公开(公告)号：US07631555B2
公开(公告)日：2009-12-15
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 includes 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 a heating temperature control 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，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：US07559237B2
公开(公告)日：2009-07-14
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： 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。
-
公开(公告)号：US20070024119A1
公开(公告)日：2007-02-01
申请号：US11480979
申请日：2006-07-06
申请人： Izumi Watanabe , Junichi Horie , Keiichi Nakada
发明人： Izumi Watanabe , Junichi Horie , Keiichi Nakada
IPC分类号： B60L1/00
CPC分类号： G01F1/692 , G01F1/6845 , G01F1/698
摘要： A thermal type flow measuring apparatus includes a heating resistor provided in a thin part of a substrate and a bridge circuit for driving the heating resistor to have a preset heating temperature, wherein resistor elements on sides forming the bridge circuit are temperature sensitive resistors, a part or whole of at least one of the temperature sensitive resistors is placed in the thin part and near the heating resistor so that the temperature sensitive resistor is influenced by a heat of the heating resistor, and the preset heating temperature is increased as the flow of fluid is increased. This configuration introduces flow dependency into the heating temperature of the heating resistor.
摘要翻译： 一种热式流量测量装置包括设置在基板的薄部分中的加热电阻器和用于驱动加热电阻器以具有预设加热温度的桥接电路，其中形成桥接电路的侧面上的电阻器元件是温度敏感电阻器， 或整个温度敏感电阻器中的至少一个放置在薄部分和靠近加热电阻器处，使得温度敏感电阻器受到加热电阻器的热量的影响，并且预设加热温度随着流体流动而增加 增加了。 该配置将流依赖性引入加热电阻器的加热温度。
-
公开(公告)号：US20060144138A1
公开(公告)日：2006-07-06
申请号：US10546174
申请日：2004-05-26
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 ({Th=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）通过恒温（{Th = Th-Ta））控制为高于介质温度（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）<？in-line-formula description =“In-line Formulas”end =“tail 因此，提供了能够防止由热诱导效应引起的诸如碳颗粒的漂浮微粒的沉积的热流量传感器，可以以低成本制造，并且具有高可靠性。
-
公开(公告)号：US20060065049A1
公开(公告)日：2006-03-30
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。
-
-
-
-
-
-
-
-
-
搜索结果
105 条记录 (耗时 0.026 秒)
