Analytical advantages of monitoring a particular characteristic frequency in a thickness shear mode acoustic wave sensor
authors Gomes, MTSR; Verissimo, MIS; Oliveira, JABP
journal SENSORS AND ACTUATORS B-CHEMICAL
author keywords piezoelectric quartz crystals; passive method; ethanol; fructose; glycerol
keywords PIEZOELECTRIC QUARTZ CRYSTAL; LIQUID-PHASE; OSCILLATION FREQUENCY; RESONATOR; MICROBALANCE; JUNCTION
abstract The oscillator or active method, where just the series resonance frequency (f(s)) can be measured, has been the method of choice for analytical applications of bulk acoustic wave sensors. However, the present work shows that an increase in the analytical signal can be obtained if the frequency at minimum impedance (f(n)) is measured. An example is given, where quantitative analysis is only possible if f(n) is measured instead of f(s). Sensitivity of a particular analysis can be improved if a previous study is performed in order to select the most suitable characteristic frequency (f(s), f(n) or f(p)) to be monitored. (C) 2001 Elsevier Science B.V. All rights reserved.
publisher ELSEVIER SCIENCE SA
issn 0925-4005
year published 2000
volume 78
issue 01-mar
beginning page 331
ending page 336
digital object identifier (doi) 10.1016/S0925-4005(01)00835-8
web of science category Chemistry, Analytical; Electrochemistry; Instruments & Instrumentation
subject category Chemistry; Electrochemistry; Instruments & Instrumentation
unique article identifier WOS:000171071200053
link http://dx.doi.org/10.1016/S0925-4005(01)00835-8
  ciceco authors
  impact metrics
journal analysis (jcr 2019):
journal impact factor 7.1
5 year journal impact factor 6.535
category normalized journal impact factor percentile 93.541
dimensions (citation analysis):
altmetrics (social interaction):



 


Sponsors

1suponsers_list_ciceco.jpg