Basic theories of phased array technology in industrial applications

Phased array ultrasound technology has been widely used in the field of non-destructive testing. By means of electronic timing control and utilizing the principles of wave superposition and interference, this technology generates dynamic scanning beams, which ultimately result in scanned images; it offers a higher defect detection rate compared to traditional ultrasonic testing methods. With the rapid development of computer technology, the complexity and cost of phased array systems have been significantly reduced. Moreover, phased array technology has significant advantages over conventional ultrasonic testing, which has led to the gradual adoption of phased array ultrasonic testing in the industrial sector. It has been applied in the testing of various materials, yielding satisfactory results. Application features: Phased array technology enables linear scanning, sector scanning, and dynamic depth focusing, thereby allowing the detection of defects in complex structural components as well as in areas that are difficult to access; as a result, the inspection speed is very fast ； Real-time color imaging, including A/B/C and S scanning, to facilitate defect identification ； Phased arrays offer greater detection flexibility and can perform functions that other conventional detection techniques cannot achieve, such as the inspection of complex workpieces ； It can easily detect defects of various orientations and at different locations, offering a high defect detection rate and high precision ； The test results are less affected by human factors, and the data is easy to store, manage, and retrieve.