Investigation of Goubau Wave Propagation on Large Pipes for Sensing Applications

Journal Article · 22 May 2023 · Sensors

DOI: https://doi.org/10.3390/s23114991 · OSTI ID:1974817

Greve, David W.; Devkota, Jagannath; Ohodnicki, Paul R. ; Wright, Ruishu

We examine the application of guided waves on a single conductor (Goubau waves) for sensing. In particular, the use of such waves to remotely interrogate surface acoustic wave (SAW) sensors mounted on large-radius conductors (pipes) is considered. Experimental results using a small-radius (0.0032 m) conductor at 435 MHz are reported. The applicability of published theory to conductors of large radius is examined. Finite element simulations are then used to study the propagation and launching of Goubau waves on steel conductors up to 0.254 m in radius. Simulations show that waves can be launched and received, although energy loss into radiating waves is a problem with current launcher designs.

• Sponsoring Organization: USDOE
• OSTI ID: 1974817
• Alternate ID(s): OSTI ID: 2471191
• Journal Information: Sensors, Journal Name: Sensors Journal Issue: 11 Vol. 23; ISSN SENSC9; ISSN 1424-8220
• Publisher: MDPI AGCopyright Statement
• Country of Publication: Switzerland
• Language: English