The combined and simultaneous measurements of both acousto-mechanical and dielectric loadings on purposely sensitized TSM quartz crystal resonators are evaluated as a multiparametric sensing approach for in-liquid chemical detection. This is made possible at low cost and in real time by the use of an automatic-capacitance-compensation (ACC) oscillator, which accurately keeps locked to the sensor resonance and advantageously outputs three signals respectively cot-responding to the sensor series resonant frequency, quality factor, and parallel capacitance. Results are presented on cavitand-coated 10-MHz crystals in response to different chemical compounds in water solutions.
Combined measurements of acoustic and dielectric loading on cavitand-coated TSM quartz sensors with ACC oscillator for in-liquid chemical detection / Ferrari, M.; Ferrari, V.; Marioli, D.; Taroni, A.; Suman, Michele; Dalcanale, Enrico. - STAMPA. - Vol. 1-3:(2004), pp. 445-448. (Intervento presentato al convegno IEEE Sensors 2004 Conference tenutosi a Vienna, Austria nel OCT 24-27, 2004) [10.1109/ICSENS.2004.1426195].
Combined measurements of acoustic and dielectric loading on cavitand-coated TSM quartz sensors with ACC oscillator for in-liquid chemical detection
SUMAN, Michele;DALCANALE, Enrico
2004-01-01
Abstract
The combined and simultaneous measurements of both acousto-mechanical and dielectric loadings on purposely sensitized TSM quartz crystal resonators are evaluated as a multiparametric sensing approach for in-liquid chemical detection. This is made possible at low cost and in real time by the use of an automatic-capacitance-compensation (ACC) oscillator, which accurately keeps locked to the sensor resonance and advantageously outputs three signals respectively cot-responding to the sensor series resonant frequency, quality factor, and parallel capacitance. Results are presented on cavitand-coated 10-MHz crystals in response to different chemical compounds in water solutions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
