Share Email Print

Proceedings Paper

Lens-free imaging-based low-cost microsensor for in-line wear debris detection in lube oils
Author(s): Jon Mabe; Joseba Zubia; Eneko Gorritxategi
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The current paper describes the application of lens-free imaging principles for the detection and classification of wear debris in lubricant oils. The potential benefits brought by the lens-free microscopy techniques in terms of resolution, deep of field and active areas have been tailored to develop a micro sensor for the in-line monitoring of wear debris in oils used in lubricated or hydraulic machines as gearboxes, actuators, engines, etc. The current work presents a laboratory test-bench used for evaluating the optical performance of the lens-free approach applied to the wear particle detection in oil samples. Additionally, the current prototype sensor is presented, which integrates a LED light source, CMOS imager, embedded CPU, the measurement cell and the appropriate optical components for setting up the lens-free system. The imaging performance is quantified using micro structured samples, as well as by imaging real used lubricant oils. Probing a large volume with a decent 2D spatial resolution, this lens-free micro sensor can provide a powerful tool at very low cost for inline wear debris monitoring.

Paper Details

Date Published: 20 February 2017
PDF: 16 pages
Proc. SPIE 10110, Photonic Instrumentation Engineering IV, 101101D (20 February 2017); doi: 10.1117/12.2250282
Show Author Affiliations
Jon Mabe, IK4 Tekniker (Spain)
Joseba Zubia, Univ. of the Basque Country (Spain)
Eneko Gorritxategi, Atten2 Advanced Monitoring Technologies (Spain)

Published in SPIE Proceedings Vol. 10110:
Photonic Instrumentation Engineering IV
Yakov G. Soskind; Craig Olson, Editor(s)

© SPIE. Terms of Use
Back to Top