International Journal of Aerospace Engineering / 2013 / Article / Fig 8

Review Article

A Methodological Review of Piezoelectric Based Acoustic Wave Generation and Detection Techniques for Structural Health Monitoring

Figure 8

An interdigital transducer fabricated on a steel pipe (left) for generation and detection of Rayleigh surface acoustic waves. The interdigital top electrodes were silver-pained with help of a mask (right).