SYSTEM AND METHOD FOR NONDESTRUCTIVE EVALUATION OF A TEST OBJECT USING ACOUSTIC THERMOGRAPHY
    3.
    发明公开
    SYSTEM AND METHOD FOR NONDESTRUCTIVE EVALUATION OF A TEST OBJECT USING ACOUSTIC THERMOGRAPHY 审中-公开
    用声学热成像对试验对象进行无损评估的系统和方法

    公开(公告)号:EP3287778A1

    公开(公告)日:2018-02-28

    申请号:EP17173251.4

    申请日:2017-05-29

    摘要: A system (10) for nondestructive evaluation of a test object (12) includes a platform (14), an electromagnetic acoustic transducer (EMAT) (16) to create acoustic vibrations (18) that travel along the test object (12); an infrared detector (20) positioned to record thermal images (200) of a plurality of test areas (24, 26, 28) on the test object (12) to detect flaws (30) in the test object (12) as the platform (14) and the test object (12) move relative to each other; and a control (22) connected to actuate the EMAT (16) and the infrared detector (20), synchronize the creation of vibrations (18) with the recording of thermal images (200), receive a signal from the infrared detector (20) indicative of the thermal image (200) of the surface (23) of the test object (12), and record locations of the flaws (30) appearing on the thermal images (200) of the test areas (24, 26, 28), all as the platform (14) and the test object (12) move relative to each other.

    摘要翻译: 一种用于测试对象(12)的无损评估的系统(10),包括平台(14),产生沿测试对象(12)行进的声振动(18)的电磁声换能器(EMAT)(16); 定位成记录测试对象(12)上的多个测试区域(24,26,28)的热图像(200)以检测测试对象(12)中的瑕疵(30)作为平台的红外检测器(20) (14)和所述测试物体(12)相对于彼此移动; 以及连接成启动EMAT(16)和红外探测器(20)的控制器(22),使振动(18)的产生与热图像(200)的记录同步,从红外探测器(20)接收信号, 指示测试对象(12)的表面(23)的热图像(200),并且记录出现在测试区域(24,26,28)的热图像(200)上的缺陷(30)的位置, ,所有的平台(14)和测试物体(12)相对于彼此移动。