1280Z Sistema de Impedancias AC y DC
Sistema
de Impedancias AC
de 1mHz a 20KHz
y DC
Incluye FRA y Potenciostato
1287 dentro de la unidad.
Unidad portable o de
laboratorio. Dispone de 2, 3 ó 4 electrodos.
Incluye Software
ZPlot/Zview para
análisis en impedancias de curvas y circuitos equivalentes, y
Corrware/Corrview para
técnicas potenciostáticas/potenciodinámicas
en DC.
The
powerful combination of FRA and ECI in a single, compact unit is equally at
home on the bench or on the field. When used with Zplot for Windows, it
offers a complete range of EIS techniques, including ac impedance and
harmonic analysis. The use of CorrWare with the 1280B allows all standard dc
electroanalytical analysis techniques to be programmed, including
electrochemical noise. The instrument boasts the following specification:
Full
floating measurement capability for grounded cells, autoclaves, storage tanks
and pipelines
• 1pA / 1microV de resolución
• +/- 14.5V, +/- 2A de
polarización
• 1mHz a 20KHz de rango de
frecuencia
From
materials screening in the laboratory to on-site corrosion monitoring the
Solartron 1280B has the power to perform:
Polarización DC
The simplest of all
electrochemical techniques - a controlled ramp voltage is applied to the sample
and the change in current plotted
Análisis de Armónicos
A common application of this
technique is to calculate corrosion rate from the measurement of harmonic
data.
Ruido Electroquímico
Random current and voltage
fluctuations are recorded over time without applying an external stimulus. To
achieve meaningful results, voltage and current must be measured
simultaneously. This technique is entirely passive and therefore requires
highly sensitive and accurate instrumentation ..... ideal for the 1280B.
Impedancias
Electrochemical Impedance
Spectroscopy (EIS) is a flexible and sensitive technique which can be used to
gain detailed insights into the physical and chemical properties of a sample.
When a variable (ac) voltage is applied the ratio to the measured current is
called the impedance. This impedance varies according to the frequency of the
voltage. Measured across a broad frequency range the results plotted in Bode
or Complex plane formats reveal information undetectable using other methods
of investigation.
An
innovative and inherently non-destructive technique, EIS is already being
used in research and development work in the following areas:
• Corrosion studies
• Battery research and fuel cells
• Solar cells
• LCD's
• Bio-materials
• Dental research
• Electronic component development
• Civil engineering
• Dielectric measurements
• Semiconductors
• Coatings research
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