The working principle of ultrasonic phased array flaw detector is to use phased array technology to control the transmission and reception of ultrasonic waves. By controlling the excitation time of each chip in the array, phased array technology can change the beam angle, focus position and focus size of ultrasonic wave, and realize accurate control of ultrasonic wave.

In the phased array flaw detector, the probe is composed of multiple chips, and each chip can be controlled independently. The excitation time of each wafer can be accurately controlled by software, thus changing the beam direction and focus position of ultrasonic waves. By controlling different wafer excitation time, the required acoustic beam can be formed and the accurate control of ultrasonic wave can be realized.

Phased array flaw detector has many scanning modes, including linear scanning, sector scanning and dynamic depth focusing. These modes can have the characteristics of wide beam and multi-focus, so the detection speed is faster and more accurate. In addition, phased array technology has higher detection flexibility and can realize functions that other conventional detection technologies cannot, such as detecting complex workpieces.

Compared with traditional detection methods, ultrasonic phased array flaw detector has the advantages of real-time color imaging, high defect detection rate, wide detection range, high quantitative and positioning accuracy. At the same time, the scanning device of phased array flaw detector is simple, easy to operate and maintain, harmless to human body and pollution-free to the environment.

The above information is for your reference.