Journal
CURRENT APPLIED PHYSICS
Volume 9, Issue 4, Pages E243-E245Publisher
ELSEVIER
DOI: 10.1016/j.cap.2009.05.028
Keywords
Diamond-like carbon; DLC; Chronoamperometry; Brake fluid; Water-in-oil concentration
Funding
- Ministry of Knowledge Economy
- KOSEF through National Core Research Center [R15-2004-02400000-0]
- Seoul Research and Business Development Program [10816]
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The feasibility of a diamond-like carbon (DLC) electrode for brake fluid monitoring is presented. The DLC electrode was applied to the determination of water-in-oil concentration in brake fluids by using chronoamperometry and RC-time measurement. From the chronoamperometric method, the DLC electrode could detect water-in-oil concentration of less than 1% at the fixed sampling time (7 ms) after applying a step potential. The RC-time measurement was carried out by using a home-made module which evaluated time for charging current to reach a specified value. The reproducibility of RC-time measurement was evaluated to be less than 5%. (C) 2009 Elsevier B.V. All rights reserved.
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