Acoustic Wave Sensors: Theory, Design by D. S. Ballantine Jr., Robert M. White, S. J. Martin,

By D. S. Ballantine Jr., Robert M. White, S. J. Martin, Antonio J. Ricco, E. T. Zellers, G. C. Frye, H. Wohltjen, Moises Levy, Richard Stern

Covers a wide selection of sensors with specialise in analyte-film interactions for varied physical/chemical absorption approaches. really fascinating is the comparability of transients for reversible and irreversible interactions.

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The dependencies of these quantities on a given perturbation therefore will be the subject of numerous theoretical calculations as well as experimental measurements to be discussed in later chapters. 55 to define a complex power transfer Prfrom the wave, by the perturbation, that accounts for both power dissipation Pd and changes in stored energy AU: PT = Pd + j2ooAU. 61) giving a general relationship between power transferred from the wave Pr and the resulting changes in the wave propagation factors, Av/vo and Aa/k.

By combining smooth- and texturedsurface devices in a single sensor, researchers have demonstrated the determination of both fluid density and viscosity [38]. 7 SOLID~LIQUID B O U N D A R Y C O N D I T I O N S A N D W E ~ I N G TEXTURED SURFACES OF In calculating liquid displacements generated by a resonator surface in contact with a liquid, a non-slip boundary is typically assumed at the interface. This relies on having sufficient interfacial force between the solid and liquid to ensure that the liquid layer adjacent to the solid moves with the solid and that continuity of displacement is maintained across the interface.

See Ref. [141. 0 _ ~ --" _ m' "= i I _ "=" ,. q=, ~ -i iq= q~ ~ i iI i I i 9 I 0 -I" "- i I ""' 3000 I -. ,=4 i - - 1 0 0 , 1000, I! 0 .. ... I ii ii Iillll , i i I. . 12) with liquid contact angle [14]. Different curves are obtained for different groove dimensions: peak-to-peak amplitude is indicated in nanomctcrs next to each. (Reprintedwith permission. See Ref. [14].

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