Electro-Ultrasonic Spectroscopy - New Method for Ppolymer Based Conducting Layers Characterisation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F07%3APU72016" target="_blank" >RIV/00216305:26220/07:PU72016 - 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

Electro-Ultrasonic Spectroscopy - New Method for Ppolymer Based Conducting Layers Characterisation

Original language description

We have studied the properties of polymer based thick film layers by the new method - Electro-Ultrasonic Spectroscopy. The polymer based thick film layers has granular like structure given by the composition of carbon (C) spherical particles and graphite(Gr) flakes suspended in the polymer vehicle. The ultrasonic signal of frequency fU changes the contact area between conducting grains and then resistance is modulated by the frequency of ultrasonic excitation. An intermodulation voltage Um is created on the structure. It depends on the value of AC current varying with frequency fE and on the ultrasonic excited resistance change ?R varying with frequency fU. The intermodulation component of frequency fm = fE - fU varies linearly with electric excitation. The measurement of the low frequency noise shows that the noise spectral density is 1/fa type and it is proportional to the square of electric current. The frequency factor a is very near to 1. Simultaneous measurement of electrical no

Czech name

Elesto-ultrazvuková spektroskopie - nová metoda pro vyhodnocení kvality vodivých vrstev na bázi polymeru

Czech description

We have studied the properties of polymer based thick film layers by the new method - Electro-Ultrasonic Spectroscopy. The polymer based thick film layers has granular like structure given by the composition of carbon (C) spherical particles and graphite(Gr) flakes suspended in the polymer vehicle. The ultrasonic signal of frequency fU changes the contact area between conducting grains and then resistance is modulated by the frequency of ultrasonic excitation. An intermodulation voltage Um is created on the structure. It depends on the value of AC current varying with frequency fE and on the ultrasonic excited resistance change ?R varying with frequency fU. The intermodulation component of frequency fm = fE - fU varies linearly with electric excitation. The measurement of the low frequency noise shows that the noise spectral density is 1/fa type and it is proportional to the square of electric current. The frequency factor a is very near to 1. Simultaneous measurement of electrical no

Type

D - Article in proceedings

CEP classification

JA - Electronics and optoelectronics

OECD FORD branch

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Project

<a href="/en/project/GA102%2F06%2F0866" target="_blank" >GA102/06/0866: Nonlinear electroultrasonic spectroscopy of solids</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2007

Confidentiality

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

Article name in the collection

Proceedings of the conference New Trends in Physics

ISBN

978-80-7355-078-3

ISSN

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e-ISSN

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Number of pages

4

Pages from-to

130-133

Publisher name

Ústav fyziky FEKT VUT v Brně

Place of publication

Brno, ČR

Event location

Brno

Event date

Nov 15, 2007

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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