Moisture detection system and method of use thereof
    1.
    发明授权
    Moisture detection system and method of use thereof 有权
    水分检测系统及其使用方法

    公开(公告)号:US06802205B2

    公开(公告)日:2004-10-12

    申请号:US10308670

    申请日:2002-12-03

    IPC分类号: G01N502

    摘要: A moisture detection system includes an electrical conductor disposed on a surface of a substrate. The electrical conductor has a resonant frequency that varies as a function of an amount of moisture present adjacent the electrical conductor. An oscillator outputs an oscillator signal at a predetermined amplitude and a predetermined frequency. A resonator circuit is coupled to the electrical conductor and is responsive to the oscillator signal and the resonant frequency of the electrical conductor for outputting a resonator signal having an amplitude related to the resonant frequency of the electrical conductor. A filter circuit rectifies and filters the resonator signal and provides it to an analog-to-digital converter which outputs a digital signal related to the rectified and filtered resonator signal. A controller is responsive to the digital signal for causing a system associated with the substrate to operate in accordance with the digital signal.

    摘要翻译: 水分检测系统包括设置在基板的表面上的电导体。 电导体具有作为电导体附近存在的水分的量的函数而变化的谐振频率。 振荡器以预定的振幅和预定频率输出振荡器信号。 谐振器电路耦合到电导体,并响应于振荡器信号和电导体的谐振频率,用于输出具有与电导体谐振频率相关的振幅的谐振器信号。 滤波器电路对谐振器信号进行整流和滤波,并将其提供给模数转换器,其输出与经整流和滤波的谐振器信号相关的数字信号。 控制器响应数字信号使得与衬底相关的系统根据数字信号进行操作。

    Temperature compensated windshield moisture detector
    3.
    发明申请
    Temperature compensated windshield moisture detector 有权
    温度补偿挡风玻璃水分检测仪

    公开(公告)号:US20070044542A1

    公开(公告)日:2007-03-01

    申请号:US11516769

    申请日:2006-09-06

    IPC分类号: G01N5/02

    摘要: A moisture detection system includes an electrical conductor disposed on a surface of a substrate, an oscillator for outputting an oscillator signal at a predetermined amplitude and a predetermined frequency, and a resonator circuit coupled to the electrical conductor and responsive to the oscillator signal for outputting a resonator signal having an amplitude related to a resonant frequency of the electrical conductor. A filter circuit responsive to the resonator signal can output a rectified and filtered signal, and an analog-to-digital converter responsive to the rectified and filtered signal can output a digital signal related to the rectified and filtered signal. A sensor can be provided having a property that varies as a function of a temperature at or adjacent the electrical conductor. A controller can be responsive to the digital signal and the property of the sensor for causing another system to operate as a function thereof.

    摘要翻译: 水分检测系统包括设置在基板的表面上的电导体,用于以预定振幅和预定频率输出振荡器信号的振荡器,以及耦合到电导体的谐振器电路,并且响应于振荡器信号输出 谐振器信号具有与电导体的谐振频率相关的振幅。 响应于谐振器信号的滤波器电路可以输出经整流和滤波的信号,并且响应于经整流和滤波的信号的模数转换器可以输出与经整流和滤波的信号相关的数字信号。 可以提供具有根据电导体处或邻近电导体的温度变化的性质的传感器。 控制器可以响应数字信号和传感器的属性,以使另一系统作为其功能而起作用。