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    • 2. 发明申请
    • Fuel composition sensing systems and methods using EMF wave propagation
    • 燃料成分感测系统和使用EMF波传播的方法
    • US20080156065A1
    • 2008-07-03
    • US12004443
    • 2007-12-18
    • Idir BoudaoudAdrian PageAlan McCall
    • Idir BoudaoudAdrian PageAlan McCall
    • G01N23/00
    • G01N27/221G01N33/2852
    • A flex fuel sensor is deployed in conjunction with the fuel transfer line (e.g. around a plastic fuel line) or at the bottom/side of a fuel tank. An RF signal of a constant frequency may be generated across a resonant circuit, which comprises of an inductor and a PCB trace capacitor, capacitor plates, semi cylindrical capacitor plates, or the like. Electromagnetic radiation is propagated into the passing fuel in the transfer pipe. The conductivity and dielectric properties of the fuel change the capacitance of the trace capacitor/capacitor plates. These changes are proportional to ethanol/alcohol content of the fuel and are preferably detected by a microcontroller, or the like, and then transmitted to a flex fuel vehicle Engine Management System.
    • 弹性燃料传感器与燃料输送管线(例如在塑料燃料管线周围)或燃料箱的底部/侧面相结合地部署。 可以在包括电感器和PCB迹线电容器,电容器板,半圆柱形电容器板等的谐振电路两端产生恒定频率的RF信号。 电磁辐射传播到输送管道中的通过燃料中。 燃料的导电性和介电性能改变了痕量电容器/电容器板的电容。 这些变化与燃料的乙醇/醇含量成比例,优选由微控制器等检测,然后传输到柔性燃料车辆发动机管理系统。
    • 3. 发明授权
    • Fuel composition sensing systems and methods using EMF wave propagation
    • 燃料成分感测系统和使用EMF波传播的方法
    • US07836756B2
    • 2010-11-23
    • US12004443
    • 2007-12-18
    • Idir BoudaoudAdrian PageAlan McCall
    • Idir BoudaoudAdrian PageAlan McCall
    • G01N30/62
    • G01N27/221G01N33/2852
    • A flex fuel sensor is deployed in conjunction with the fuel transfer line (e.g. around a plastic fuel line) or at the bottom/side of a fuel tank. An RF signal of a constant frequency may be generated across a resonant circuit, which comprises of an inductor and a PCB trace capacitor, capacitor plates, semi cylindrical capacitor plates, or the like. Electromagnetic radiation is propagated into the passing fuel in the transfer pipe. The conductivity and dielectric properties of the fuel change the capacitance of the trace capacitor/capacitor plates. These changes are proportional to ethanol/alcohol content of the fuel and are preferably detected by a microcontroller, or the like, and then transmitted to a flex fuel vehicle Engine Management System.
    • 弹性燃料传感器与燃料输送管线(例如在塑料燃料管线周围)或燃料箱的底部/侧面相结合地部署。 可以在包括电感器和PCB迹线电容器,电容器板,半圆柱形电容器板等的谐振电路两端产生恒定频率的RF信号。 电磁辐射传播到输送管道中的通过燃料中。 燃料的导电性和介电性能改变了痕量电容器/电容器板的电容。 这些变化与燃料的乙醇/醇含量成比例,优选由微控制器等检测,然后传输到柔性燃料车辆发动机管理系统。