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Application of a multi-channel zero-resistance current amplifier for screening processes

Anwendung eines Mehrkanal-Stromverstärkers mit Nullwiderstand für Screening-Verfahren

: Plagemann, P.; Anton, A.; Yezerska, O.; Schneider, M.; Schrems, P.

DOI: 10.1002/maco.200704086

	Materials and corrosion 58 (2007), Nr.12, S.940-945 ISSN: 0947-5117

	Englisch
	Zeitschriftenaufsatz
	Fraunhofer IFAM () Fraunhofer IKTS ()
	Korrosionsprüfung; Rauschmessung; Screening-Verfahren; Stromverstärkung; simultanes Messverfahren; Aluminiumkupfermagnesiumlegierung; Natriumchlorid; Konzentrationseinfluss; Korrosionsinhibitor; Benztriazol; Vergleichsuntersuchung; Polarisationskurve; Näherungsverfahren; Pigmentfarbstoff

Abstract
In addition to being a very useful monitoring technique, electrochemical noise analysis is also particularly suitable for screening purposes. A multi-channel zero-resistance current amplifier was designed in order to be able to carry out multiple noise measurements simultaneously, thus allowing a greater number of tests to be performed in a given time.
Electrochemical noise measurements were carried out on AA 2024 in NaCl solutions of different concentrations and in the presence of inhibitors to highlight the practical relevance of this analytical method. The results show that the noise data can be evaluated in a simple and clear way using the noise charge.
Entnommen aus TEMA

: http://publica.fraunhofer.de/dokumente/N-68030.html