The invention relates to an infrared thermal imaging nondestructive testing method for wind driven generator blades, which comprises the following steps: 1) an unmanned aerial vehicle takes off and flies to a to-be-detected position, and then is adsorbed to a to-be-detected area; (2) the central control processing system activates the infrared thermal imager, so that the temperature of a to-be-measured area of the blade is gradually increased, an infrared image of the to-be-measured area is collected in real time, and temperature distribution of the blade in the temperature rising process is recorded; 3) the central control processing system processes the infrared image, identifies an abnormal area in temperature distribution, and extracts key features from the infrared image; 4) performing anomaly detection by using the extracted features, comparing features in a normal state, and identifying internal defects or anomalies of the blade; and 5) after completing the detection of the area, going to the next to-be-detected area, and repeating the operations from the step 2) to the step 4). According to the invention, the unmanned aerial vehicle is combined with the infrared thermal imaging technology, so that high-precision detection of tiny defects in the blade is realized, and the detection accuracy and efficiency are improved.

    本发明涉及一种风力发电机叶片的红外热成像无损检测方法,包括如下步骤:1),无人机起飞,飞行至待检测位置后,吸附在待测区域;2),中央控制处理系统激活红外热成像仪,使叶片待测区温度逐渐升高,并实时采集待测区域的红外图像,记录叶片在升温过程中的温度分布;3),中央控制处理系统对红外图像进行处理,识别温度分布中的异常区域,并从红外图像中提取关键特征;4),利用提取的特征进行异常检测,比对正常状态下的特征,识别叶片内部缺陷或异常;5),完成该区域的检测后,前往下一块待测区域,并重复2)至4)的操作。本发明通过无人机结合红外热成像技术,实现对叶片内部微小缺陷的高精度检测,提高了检测的准确性和效率。


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    Title :

    Infrared thermal imaging nondestructive testing method for wind driven generator blade


    Additional title:

    一种风力发电机叶片的红外热成像无损检测方法


    Contributors:
    CHENG XIAOYING (author) / KIM YOUNG-CHANG (author) / SHI LIN (author) / WU ZHENYU (author)

    Publication date :

    2024-09-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / B64U / G01J Messen der Intensität, der Geschwindigkeit, der spektralen Zusammensetzung, der Polarisation, der Phase oder der Pulscharakteristik von infrarotem, sichtbarem oder ultraviolettem Licht , MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT / G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL



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