PVDF Comb Transducer for Controlling Guided Wave Mode and Application in Inspection

In order to avoid the presence of several guided wave modes at particular frequencies, the process of designing and fabricating PVDF comb transducer was discussed in detail. Experiments were conducted with a PVDF comb transducer mounted on a thin steel plate. The results showed that a single guided wave mode was achieved by a PVDF comb transducer in a controlled frequency. The application of PVDF comb transducer in fouling detection on the thin steel plate was also discussed.