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Summary of Contents for Gamry Instruments Universal Dummy Cell 3
- Page 1 Universal Dummy Cell 3 Operator's Manual Copyright 2005, Gamry Instruments, Inc. All rights reserved. Printed in the USA. Revision 1.1 December 27, 2005...
- Page 3 Copyrights and Trademarks UDC3 Universal Dummy Cell 3 Operator’s Manual Copyright 2003-5 Gamry Instruments, Inc. All rights reserved. Printed in the USA. Gamry Framework Copyright 1989-2005 Gamry Instruments, Inc. Universal Dummy Cell, Universal Dummy Cell 3, UDC3, PCI4,Reference 600, Gamry Framework, DC105, EIS300, and Gamryare trademarks of Gamry Instruments, Inc.
- Page 5 --Introduction-- Introduction The Universal Dummy Cell 3 (UDC 32) is a printed circuit board used for calibration and troubleshooting of a Gamry potentiostat. It has 3 “test cells” equipped with terminals, arranged around the boarders of the printed circuit board.
- Page 6 --EIS-- Figure 1 EIS Dummy Cell Schematic Diagram 1 uF 3.01 k Figure 2 Bode Plot of EIS Dummy Cell Spectrum If you want a numerical confirmation of the system’s performance, fit the dummy cell’s spectrum to the Randle’s model in the EChem Analyst. The calculated values should be between: 2.95 k...
- Page 7 --DC Corrosion-- DC Corrosion The UDC 2’s DC Corrosion circuit simulates current versus voltage behavior of an ideal corrosion cell. A voltage scan on this cell, with current range auto-ranging enabled, is particularly useful when testing potentiostat operation because almost all current ranges will be used during the scan. Figure 3 DC Corrosion Dummy Cell Schematic Diagram SR106...
- Page 8 --DC Corrosion-- A Tafel fit of a typical scan (both with and without iR compensation) can be seen below. Both the anodic and cathodic Tafel constants were calculated to be between 60 and 70 mV per decade. The calculated corrosion rate is quite small (about 10 mm/year) because of the very small I (about 10...
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