Equivalent circuit of polypyrrole-based QCM

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F12%3APU99884" target="_blank" >RIV/00216305:26220/12:PU99884 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Equivalent circuit of polypyrrole-based QCM

Original language description

Quartz crystal microbalance belongs to a group of high-sensitive chemical sensors for detection of substances dispersed or dissolved in gas or liquid environments. Several equivalent circuits exist for the QCM sensor. Design of these circuits depends mainly on an active layer of sensor as well as on an environment, in which a sensor is applied. An equivalent circuit is usually separated in two parts; the first one corresponds to quartz crystal, while the second part relates to chemical and physical properties, such as concentration of detected matter, viscosity of an active layer, viscosity of environment, etc.. For design of driven-oscillator circuit of QCM, it is necessary to develop accurate equivalent circuit, which is able to simulate behavior of QCM for a large range of concentration of detected matter. In the paper, the study is provided on polypyrrole-based QCM. Polypyrrole is suitable material for humidity measurements, and was deposited by matrix assisted pulsed laser evaporation technique in our case for two values of thicknesses. Electrical characteristics of polypyrrole-based QCM were measured for four concentrations of relative humidity. These experimental data are in good agreement with calculations based on our equivalent circuits. We can accurately simulate behavior of QCM in gas environment for various concentrations.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20201 - Electrical and electronic engineering

Project

<a href="/en/project/MEB091129" target="_blank" >MEB091129: Investigation of the noise of thick-film pressure sensors</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

MIDEM Society for Microelectronic, Electronic Components and Materials - Conference 2012 Proceedings

ISBN

978-961-92933-2-4

ISSN

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e-ISSN

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Number of pages

5

Pages from-to

405-409

Publisher name

Neuveden

Place of publication

Lubljana Slovenia

Event location

Otočec Slovenia

Event date

Sep 19, 2012

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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