Surface acoustic wave sensors are a class of microelectromechanical systems (MEMS) which rely on the modulation of surface acoustic waves to sense a physical phenomenon. The sensor transduces an input electrical signal into a mechanical wave which, unlike an electrical signal, can be easily influenced by physical phenomena. The device then transduces this wave back into an electrical signal. Changes in amplitude, phase, frequency, or time-delay between the input and output electrical signals can be used to measure the presence of the desired phenomenon.[1][2][3]
^Grate, Jay W. (2000). "Acoustic Wave Microsensor Arrays for Vapor Sensing". Chemical Reviews. 100 (7): 2627–2648. doi:10.1021/cr980094j. PMID 11749298.
^Thompson, M. H.; Stone, D. C. (1997). Surface-Launched Acoustic Wave Sensors: Chemical Sensing and Thin-Film Characterization. New York: John Wiley and Sons.{{cite book}}: CS1 maint: multiple names: authors list (link)
^Ballantine, D. S.; White, R. M.; Martin, S. J.; Ricco, A. J.; Zellers, E. T.; Frye, G. C.; Wohltjen, H. (1997). Acoustic Wave Sensors.Theory, Design, and Physico-Chemical Applications. New York: Academic Press.{{cite book}}: CS1 maint: multiple names: authors list (link)
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