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%.
Bibliographical noteFunding Information:
This work was supported by “System IC 2010” project of Ministry of Knowledge Economy and by KOSEF through National Core Research Center for Nanomedical Technology (R15-2004-024-00000-0) and by Seoul Research and Business Development Program (10816).
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Physics and Astronomy(all)