The importance of choosing the frequency of sending a probing pulse to eliminate false indications associated with the design of the control object, using the example of a thick-walled object with a thickness of 300 mm.
In preparation for ultrasonic testing, the surface of the object is often subjected to mechanical treatment, for example, to remove protective paints. As a result, many depressions up to several millimeters deep and several tens of millimeters long can form on the surface, which, when conducting coherent ultrasonic inspection of surface irregularities, can noticeably distort the restored image of discontinuities.
Currently, ultrasonic monitoring technology is widely used using ultrasonic antenna arrays that emit and receive waves in the object under study. Two technologies for image reconstruction of reflectors using antenna arrays have found wide application in the practice of ultrasonic testing: phased array antennas (FAR) and digital focusing of the antenna array (CFA). In this paper, both technologies are compared, and it is concluded that the CFA technology is more promising in terms of using a variety of image reconstruction algorithms for reflectors.
Ultrasonic inspection of rotating furnace bandages during their operation to identify and visualize internal and surface defects.
The article describes experiments that show the effectiveness of restoring CF or SCF images of reflectors, both when registering echo signals with conventional antenna arrays and with thinned (ПРАР) ones, in which the distance between the elements is greater than the wavelength.
The article proposes a segmentation method based on the construction of a binary mask that hides the glare of reflectors.
The use of TOFD technology in the development of the ECHOPLUS. Overview of the capabilities of the equipment and software developed by the ECHOPLUS in order to implement the TOFD technology.
In this article you will learn what a nuclear power plant is and how it is used. Advantages and features of nuclear power plants. Areas of application.
Ultrasonic inspection of welds and joints. The service of the Research and Production Center ECHOPLUS in Moscow. Advantages and equipment for narrow control. Scheme and results of the work.