What is the function of the encoder in a PAUT system?

The function of the encoder in a Phased Array Ultrasonic Testing (PAUT) system is to provide positional information for mapping data. The encoder plays a crucial role in accurately determining the position of the transducer as it scans the material being tested. This positional information is essential for correlating the ultrasonic data with the specific location within the test object, allowing for effective visualization and interpretation of the results.

By capturing the exact position of the transducer at any given moment during the scanning process, the encoder ensures that the data collected can be accurately mapped to the corresponding areas on the component being inspected. This capability is important for identifying defects in the material and understanding their orientations in relation to the product geometry.

While controlling the transducer's frequency, enhancing signal amplification, and setting calibration parameters are important aspects of a PAUT system, these functions are not handled by the encoder. Instead, they relate to other components within the system that focus on optimizing the quality and accuracy of ultrasonic inspections.