Comparison of Scan Baselines of Digital and Analog Ultrasonic Flaw Detectors

By utilizing the theoretical knowledge of ultrasonic flaw detector such as display resolution, display range and scan baseline adjustment etc. A comparison was made of the adjustment methods and usage of scan baseline ratio of digital ultrasonic flaw detector with analog one. The conclusion was got that digital ultrasonic flaw detecting need not list the scan baseline ratio parameter in relative files.