CUED Publications database

Effects of spatial sensitivity on mass sensing with bulk acoustic mode resonators

Zielinski, AT and Prasad, A and Seshia, AA and Kalberer, M and Jones, RL (2015) Effects of spatial sensitivity on mass sensing with bulk acoustic mode resonators. Sensors and Actuators, A: Physical, 236. pp. 369-379. ISSN 0924-4247

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Abstract

© 2015 Elsevier B.V. All rights reserved. The spatial sensitivity of bulk acoustic mode resonators can influence calibrations when they are implemented as accurate mass sensors of surface-bound particles. A new spatial sensitivity model based on images of the resonator surface is introduced from early principles. The adsorption of particles was studied empirically by repeatedly drying particle laden droplets on the surface of two 3.14 MHz bulk acoustic mode resonators. Theoretical and experimental results were compared to identify three scenarios over the course of consecutive droplet evaporation with varying spatial sensitivity influences. Examining different surface treatments for the resonators revealed the hydrophilic surface to have a higher rate of particle stacking and conglomeration

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div C > Applied Mechanics
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:28
Last Modified: 23 Nov 2017 04:21
DOI: