A microfluidic Coulter counting device for metal wear detectionin lubrication oil

We present the design, fabrication, and testing of a microfluidic device for metal wear detection in lubrication oils. The detection is based on the capacitance Coulter counting principle, that is, on the change in a microchannel's capacitance caused by the presence of a metal particle in the m...

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Bibliographic Details
Published in:Review of scientific instruments 2009-01, Vol.80 (1), p.016105-016105-3
Main Authors: Murali, Srinidhi, Jagtiani, Ashish V., Xia, Xingao, Carletta, Joan, Zhe, Jiang
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Summary:We present the design, fabrication, and testing of a microfluidic device for metal wear detection in lubrication oils. The detection is based on the capacitance Coulter counting principle, that is, on the change in a microchannel's capacitance caused by the presence of a metal particle in the microchannel. The testing of the microfluidic device using 10 - 25   μ m aluminum particles has demonstrated the feasibility for detection and counting of microscale metal particles in low-conductive lubrication oils. This microfluidic device is promising for online oil debris detection by the use of multiple detection microfluidic channels.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.3072665