Method and device for detecting ice thickness

Abstract

The invention discloses a method and device for detecting ice thickness. The method comprises the following steps that a sensor is equivalent to an underdamped second-order system; only when it is required to detect the state information of the ice thickness, a pulse excitation signal is input to the sensor to detect and analyze an output response signal of the sensor system to the pulse input excitation signal; since the ice thickness of the surface of the sensor will change the basic parameters of the second-order system to varying degrees, a plurality of characteristics of the output response signal of the sensor system will change accordingly, and the information of the ice thickness can be obtained by detecting and analyzing the changes of these characteristics; and by applying the input pulse excitation signal to the sensor system, several different modes of operation can be selected. The method and device for detecting ice thickness can greatly prolong the working life of the sensor, realize accurate and reliable detection of the icing thickness by detecting various characteristics of the output response signal of the sensor, and have a plurality of different modes of operation available for selection such that the application of the sensor is more flexible and convenient.

Description

technical field [0001] The invention relates to the technical field of sensor and signal detection and analysis, and more specifically, to a method and device for detecting the thickness of ice formation. Background technique [0002] Icing is a widespread phenomenon, and some icing phenomena are harmful to human production and life. For example, icing on various roads, especially thin ice below several millimeters, is called "black ice" in the transportation industry. "Ice", it is difficult for drivers and passengers to detect with the naked eye. When a vehicle enters an icy road at high speed, it will cause the vehicle to skid and run away, causing a vicious traffic accident. Such traffic safety accidents not only occur in the cold regions of northern my country, but also in the vast areas of the middle and lower reaches of the Yangtze River in my country. If all kinds of aircraft encounter icy cloud and fog environment conditions during flight, icing will occur on the wi...

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Problems solved by technology

[0009] Aiming at the defects of the prior art, the purpose of the present invention is to solve many deficiencies in the existing flat-film icing sensor patent technology: the self-excited oscillation method is difficult to prolong the working life; the frequency scanning method has complex signal electronic circuits, signal detection and Analyzing technical issues with heavy workload in software programming

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