Efficiency of Ultrasonic Comb Transducers

• Autorzy: Danicki E. J.
• Języki publikacji: EN

Abstrakty

EN

Comb transducers are applied in ultrasonic testing for generation of Rayleigh or Lamb waves by scattering of the incident bulk waves onto surface waves at the periodic comb-substrate interface. Hence the transduction efficiency, although rarely discussed in literature, is an important factor for applications determining the quality of the measured ultrasonic signals. This paper presents the full-wave theory of comb transducers concluded by evaluation of their efficiency for a couple of examples of standard and certain novel configurations.

Słowa kluczowe

EN

ultrasonic transducers; interface waves; Bragg reflection

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2011
• Tom: Vol. 36, No. 4
• Strony: 887--900
• Opis fizyczny: Bibliogr. 14 poz., wykr.

Twórcy

autor

Danicki E. J.

• Institute of Fundamental Technological Research Polish Academy of Sciences Pawińskiego 5B, 02-106 Warszawa, Poland,

Bibliografia

• 1. Besserer H., Malishevsky P.S. (2004), Mode Series Expansion at Vertical Boundaries in Elastic Waveguides, Wave Motion, 39, 41-59.
• 2. Danicki E.J. (1999), Resonant phenomena in bulk-wave scattering by in-plane periodic cracks, J. Acoust. Soc. Am., 105, 84-92.
• 3. Danicki E. (2000), Periodic Crack-Model of Comb Transducers: Efficiency and Optimization, Archives of Acoustics, 25, 4, 487-507.
• 4. Danicki E.J. (2006), Spectral Theory of Interdigital Transducers of Surface Acoustic Waves, http://www.ippt.gov.pl/∼edanicki/danickibook.pdf, Chapt. 4.
• 5. Danicki E.J. (2008), Evaluation of Planar Harmonic Impedance for Periodic Elastic Strips of Rectangular Cross Section by Plate Mode Expansion, ASME J. Appl. Mech., 75, 041011-1-6.
• 6. Danicki E.J. (2010), Interface wave-modes in comb transducers, Wave Motion, 47, 508-518.
• 7. Darinskii A.N., Weihnacht M. (2004), Super high-velocity leaky waves guided by a layer inserted into piezoelectric crystals, Wave Motion, 39, 181-190.
• 8. Every A.G. (2008), Guided Elastic Waves at a Periodic Array of Thin Coplanar Cavities in a Solid, Phys. Rev. B, 78, 174104-1-11.
• 9. Field M.E., Ho R.C., Chen C.L. (1975), Surface acoustic wave grating reflector, IEEE Ultras. Symp. Proc., 430-433.
• 10. Hurley D.C. (1999), Nonlinear Propagation of Narrow-Band Rayleigh Waves Excited by a Comb Transducer, J. Acoust. Soc. Am., 106, 1782-1788.
• 11. Luisell W.H. (1960), Coupled mode and parametric electronics, J. Willey & Sons, New York, Chapt. 3.
• 12. Quarry M.J., Rose J.L. (2002), Phase Velocity Spectrum Analysis for a Time Delay Comb Transducer for Guided Wave Mode Excitation, Lawrence Livermore Nat. Lab., Preprint UCRL-JC-138500.
• 13. Victorov I.A. (1967), Rayleigh and Lamb Waves: Physical Theory and Applications, Plenum Press, New York.
• 14. Zou D., Crocker M.J. (2009), Response of a plate to PZT actuators, Archives of Acoustics, 34, 1, 13-23.