Cunfu He

We don’t have enough information about this author to calculate their statistics. If you think this is an error let us know.
Learn More
Long-range guided wave inspection is a new emerging technology for rapid pipeline inspection. In this paper, a digital signal processing method based on a synthetic technique and a direction control technique is introduced to process pipeline inspection signals. With this method, signals from different directions can be separated and structures including(More)
Ultrasonic system was developed for detecting channel defects embedded in bonded 2-sheet flexible packages film. This hardware system consisted of spherically focused 22.66-MHz ultrasonic transducer, four-axis precision positioning system, NI PXI-bus embedded controller and ultrasonic pulser-receiver. The software system was designed based on the(More)
  • 1