A kind of icing detecting device and icing detecting method

Abstract

The present invention is applicable to the technical field of aircraft icing detection, and provides an icing detection device and an icing detection method, including: a detection part, the detection part is installed on the skin surface of the aircraft; an optical sensor, the optical sensor is arranged on In the lower area covered by the detection part; the light sensor includes a substrate, a light emitting module and a light receiving module, the light emitting module and the light receiving module are installed on the substrate, and the light emitting module includes a light emitting circuit And a semiconductor light emitting unit, the light receiving module includes a photosensitive unit; the photosensitive unit is arranged around the semiconductor light emitting unit in an array; a signal processing unit, the signal processing unit is connected to the light sensor. The structural size of the photosensitive unit can be made smaller. Each photosensitive unit will process the received incident light, convert the optical signal into an electrical signal, and finally obtain the ice type, ice structure and ice thickness on the surface of the detection part. information.

Description

technical field [0001] The invention belongs to the field of icing detection, and relates to an icing detection device, in particular to an icing detection method. Background technique [0002] When the aircraft encounters icing weather during flight, ice will form on the wings, nose, engine and other parts, which will pose a major hidden danger to flight safety. In order to ensure flight safety, most aircraft are now equipped with icing sensors to detect whether there is ice on the aircraft. [0003] The current common icing sensor is a fiber optic icing sensor. Its structure is composed of a detection end face, an optical emission circuit, an optical signal detection circuit, and a signal processing circuit. and receiving fiber bundles. The working principle is: the light emitting circuit generates light of a certain band, which is incident on the ice accumulation on the detection end surface by the transmitting optical fiber. After the light is reflected, refracted and ...

AI Technical Summary

Problems solved by technology

Due to the limitation of the structure of the receiving fiber, which leads to the limitation of the incident angle, only the light beam within the incident angle can enter the receiving fiber, which greatly limits the performance of the ice sensor

In addition, the optical signal detection circuit can only superimpose the optical signals in the receiving optical fiber bundle and convert them into electrical signals together, and cannot obtain the spatial distribution characteristics of the incident light, which affects the icing information sensed by the icing sensor

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