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    • 3. 发明授权
    • Non-intrusive ice detector
    • 非侵入式冰检测器
    • US4553137A
    • 1985-11-12
    • US499819
    • 1983-06-01
    • John E. MarxerJohn W. Kowles
    • John E. MarxerJohn W. Kowles
    • B64D15/20G08B19/02
    • B64D15/20G08B19/02
    • An improved ice detector has a vibrating element which has a front portion and vibrating means suitably disposed with respect to the vibrating element for exciting the vibrating element into vibration and means for sensing a shift of the frequency of vibration of the vibrating element resulting from a change of mass of the vibrating element due to ice accumulating thereon. The improvement is characterized in that the ice detector is supported with respect to a surface exposed to an air stream such that a cap on which ice forms and which is disposed on the front portion of the vibrating element, is exposed to the air stream and is formed to be substantially conformal to such surface.
    • 改进的冰检测器具有振动元件,该振动元件具有相对于振动元件适当地设置以将振动元件激发成振动的前部和振动装置,以及用于感测振动元件由于变化引起的振动频率偏移的装置 的积聚在其上的振动元件的质量。 其特征在于,冰检测器相对于暴露于空气流的表面被支撑,使得在其上形成冰​​并且设置在振动元件的前部上的盖暴露于空气流中,并且是 形成为基本上与该表面共形。