Journal
MICROFLUIDICS AND NANOFLUIDICS
Volume 9, Issue 6, Pages 1241-1245Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s10404-010-0627-y
Keywords
Coulter counting; Inductive sensing; Particle detection; Health monitoring; Microfluidic device
Funding
- National Science Foundation [CMMI-0968736, DBI-0649798]
- Directorate For Engineering
- Div Of Civil, Mechanical, & Manufact Inn [0968736] Funding Source: National Science Foundation
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A microfluidic device based on an inductive Coulter counting principle to detect metal wear particles in lubrication oil is presented. The device detects the passage of ferrous and nonferrous particles by monitoring the inductance change of an embedded coil. The device was tested using iron and copper particles ranging in size from 50 to 125 mu m. The testing results have demonstrated that the device is capable of detecting and distinguishing ferrous and nonferrous metal particles in lubrication oil; such particles can be indicative of potential machine faults in rotating and reciprocating machinery.
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