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公开(公告)号：US20150377676A1
公开(公告)日：2015-12-31
申请号：US14411346
申请日：2012-06-27
摘要： There is provided a fluid measurement device that is high in measurement precision. The fluid measurement device has a circuit unit into which a first signal S1 output from a first detection element and a second signal S2 output from a second detection element are to he input, wherein the circuit unit includes signal processing means that outputs a third signal S3 according to the first signal and the second signal, state deciding means that decides a state of the first signal, and control means that controls an amount of change that a change of the first signal imparts to the third signal in accordance with a result of decision by the state deciding means.
摘要翻译： 提供了一种测量精度高的流体测量装置。 流体测量装置具有电路单元，从第一检测元件输出的第一信号S1和从第二检测元件输出的第二信号S2输入到该电路单元中，其中电路单元包括输出第三信号S3的信号处理装置 根据第一信号和第二信号，决定第一信号的状态的状态判定装置和控制装置，其根据判定结果控制第一信号的变化赋予第三信号的变化量 由国家决定手段。
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公开(公告)号：US20120192644A1
公开(公告)日：2012-08-02
申请号：US13361372
申请日：2012-01-30
IPC分类号： G01F1/692
CPC分类号： G01F1/6845 , G01F1/692 , G01F1/698
摘要： A thermal flow sensor includes a heater temperature controller that realizes stable startup characteristics and prevents degradation of a sensor element and can also accommodate a smaller heater. The sensor also includes a semiconductor substrate; a cavity portion provided in the semiconductor substrate; a dielectric film provided on the semiconductor substrate; a thin layer area formed as a result of the dielectric film covering the cavity portion; a heating resistor provided in the thin layer area on the dielectric film; a first temperature-sensitive resistor provided in the thin layer area on the dielectric film; a heating controller; a second temperature-sensitive resistor provided near the heating resistor; and a flow rate detector that detects a flow rate of a fluid on the basis of temperature of the second temperature-sensitive resistor. The heating controller controls the temperature of the heating resistor on the basis of first and second reference temperatures.
摘要翻译： 热流传感器包括加热器温度控制器，其实现稳定的启动特性并防止传感器元件的劣化并且还可以容纳较小的加热器。 传感器还包括半导体衬底; 设置在所述半导体基板中的空腔部; 设置在所述半导体基板上的电介质膜; 作为覆盖空腔部分的电介质膜的结果而形成的薄层区域; 设置在电介质膜上的薄层区域中的加热电阻器; 设置在介电膜上的薄层区域中的第一温敏电阻器; 加热控制器 设置在加热电阻附近的第二温敏电阻器; 以及流量检测器，其基于第二温度敏感电阻器的温度来检测流体的流量。 加热控制器基于第一和第二参考温度来控制加热电阻器的温度。
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3.发明申请公开(公告)号：US20120192632A1
公开(公告)日：2012-08-02
申请号：US13360923
申请日：2012-01-30
IPC分类号： G01M15/04
CPC分类号： G01K13/02 , G01F1/00 , G01F1/68 , G01F1/6888 , G01F5/00 , G01F15/185 , G01K1/20 , G01K7/42 , G01K2013/024 , G01K2205/02
摘要： An intake air temperature sensor capable of detecting an intake air temperature highly accurately and at high speed. The intake air temperature sensor of the present invention includes: a secondary passage 7 taking in an intake airflow; a flow rate detecting element 13 disposed in the secondary passage 7; an intake air temperature detecting element 4 provided outside the secondary passage; a temperature sensor 9 detecting a temperature of a fitting section of the intake air temperature detecting element 4; a circuit board 11 disposed in a casing; and an integrated circuit 10 applying a correction process to an output of the intake air temperature detecting element 4 on the basis of signals output from the temperature sensor 9 and a flow rate detecting element 13.
摘要翻译： 能够高精度地且高速地检测进气温度的进气温度传感器。 本发明的进气温度传感器包括：进入气流的二次通路7; 设置在次通道7中的流量检测元件13; 设置在次级通道外侧的进气温度检测元件4; 检测进气温度检测元件4的嵌合部的温度的温度传感器9; 布置在壳体中的电路板11; 以及基于从温度传感器9和流量检测元件13输出的信号将校正处理应用于进气温度检测元件4的输出的集成电路10。
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公开(公告)号：US20120198925A1
公开(公告)日：2012-08-09
申请号：US13367939
申请日：2012-02-07
申请人： Takayuki SAITO , Keiji HANZAWA , Takayuki YOGO
发明人： Takayuki SAITO , Keiji HANZAWA , Takayuki YOGO
IPC分类号： G01M15/04
CPC分类号： G01F1/6842 , F02D41/187 , G01F5/00
摘要： In relation to a humidity sensor sensitive to water and contamination, a sensor implementation structure that achieves both protection performance against water and contaminants and measurement performance such as humidity responsiveness is provided. A sensor structure has a mass airflow measurement element that measures a mass airflow flowing in an intake pipe, a humidity sensing element that senses humidity of air flowing in the intake pipe, a housing structural component having a connector that carries out input/output to/from outside and a terminal component of the connector, and a bypass passage that is composed by using part of the housing structural component and takes in part of the air that flows in the intake pipe, the mass airflow measurement element being mounted in the bypass passage; wherein space is provided in the housing structural component in the vicinity of the bypass passage, the humidity sensing element is mounted in the space.
摘要翻译： 关于对水和污染物敏感的湿度传感器，提供了实现对水和污染物的保护性能以及诸如湿度响应性的测量性能的传感器实施结构。 传感器结构具有测量进气管中流动的质量气流的质量气流测量元件，感测进气管中流动的空气湿度的湿度感测元件，具有连接器的壳体结构部件，该连接器将输入/ 从连接器的外部和端子部件和旁通通路构成，所述旁通通路由使用所述壳体结构部件的一部分而占据所述进气管中流动的一部分空气，所述质量空气流量测量元件安装在所述旁路通路 ; 其中在所述外壳结构部件中在所述旁通通路附近设置空间，所述湿度感测元件安装在所述空间中。
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公开(公告)号：US20100275685A1
公开(公告)日：2010-11-04
申请号：US12769291
申请日：2010-04-28
申请人： Keiji HANZAWA , Yoshihiko Akagi , Takuto Okamoto , Kohei Suseki , Takeshi Morino
发明人： Keiji HANZAWA , Yoshihiko Akagi , Takuto Okamoto , Kohei Suseki , Takeshi Morino
IPC分类号： G01F1/69
CPC分类号： G01F1/6965 , G01F1/72
摘要： An object of the invention is to provide a thermal air flowmeter which can reduce a detection error occurring during pulsating air flow due to a difference of response between rising and falling of detected flow or due to air flow dependence of response. A thermal air flowmeter 1 includes a heat-generating resistor 7 which heats liquid, a heating drive circuit 5 which causes current to flow in the heat-generating resistor 7 and thereby controls heating of the heat-generating resistor 7, and a temperature-sensitive resistor 9 which detects a temperature of the fluid heated by the heat-generating resistor 7. The thermal air flowmeter 1 detects a flow Q of the liquid based on the amount of heat of the liquid heated by the heat-generating resistor 7. Further included are: flow correction value calculating means 17 which calculates a flow correction value ca based on a variation dQ/dt of the detected flow Q and on a flow correction coefficient a set dependent on the detected flow Q; and flow correction means 18 which corrects the detected flow Q based on the flow correction value ca.
摘要翻译： 本发明的目的是提供一种热空气流量计，其可以减少由于检测到的流量的上升和下降之间的响应差异或由于响应的气流依赖性而在脉动空气流中发生的检测误差。 热空气流量计1包括加热液体的发热电阻器7，使发热电阻器7中的电流流动并由此控制发热电阻器7的加热的加热驱动电路5以及对温度敏感的热敏电阻 电阻器9，其检测由发热电阻器7加热的流体的温度。热空气流量计1基于由发热电阻器7加热的液体的热量来检测液体的流量Q。还包括 是：流量校正值运算单元17，其基于检测出的流量Q的变动量dQ / dt，根据检测出的流量Q对流量校正系数a计算流量校正值ca; 以及流量校正装置18，其基于流量校正值ca校正检测到的流量Q。
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公开(公告)号：US20080295575A1
公开(公告)日：2008-12-04
申请号：US12128323
申请日：2008-05-28
申请人： Noboru TOKUYASU , Hiroaki HOSHIKA , Kaori KASHIO , Keiji HANZAWA
发明人： Noboru TOKUYASU , Hiroaki HOSHIKA , Kaori KASHIO , Keiji HANZAWA
摘要： In a gas flowmeter in which a rod and a sensor element are formed as a single body, for preventing heat of the sensor element from flowing into a sensor probe through a substrate (rod) so as to suppress considerable power consumption, and for obtaining a necessary response speed with respect to a flow rate of gas to be measured or a change in temperature, the gas column (rod) is made of an insulating material on a center axis of the sensing probe and is formed with a conductor pattern on its surface, and the sensing probe connects the sensor element disposed in a pipe through which the gas to be measured flows and a harness terminal through the conductor on the surface of the rod, so as to measure a gas flow rate by using the sensing prove.
摘要翻译： 在其中杆和传感器元件形成为单体的气体流量计中，为了防止传感器元件通过基板（棒）流入传感器探针中的热量，以便抑制相当大的功率消耗，并且为了获得 相对于待测气体的流量或温度变化的必要响应速度，气柱（棒）由感测探针的中心轴上的绝缘材料制成，并且在其表面上形成有导体图案 并且感测探头将设置在待测气体的管道中的传感器元件和通过杆表面上的导体的线束端子连接，以便通过使用感测证明来测量气体流量。
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