| 摘要 |
An ice detector is provided for the determination of the thickness of ice on the outer surface of an object (e.g., aircraft) independently of temperature or the composition of the ice. First capacitive gauge, second capacitive gauge, and temperature gauge are embedded in embedding material located within a hollowed out portion of outer surface. This embedding material is flushed with outer surface to prevent undesirable drag. First capacitive gauge, second capacitive gauge, and temperature gauge are respectively connected to first capacitance measuring circuit, second capacitance measuring circuit, and temperature measuring circuit. The geometry of first and second capacitive gauges is such that the ratio of the voltage outputs of first and second capacitance measuring circuits is proportional to the thickness of ice, regardless of ice temperature or composition. This ratio is determined by offset and dividing circuit. |
