An instrument for measurement of water contamination in hydraulic fluids-Reference-Cited by-同舟云学术

An instrument for measurement of water contamination in hydraulic fluids

Published:2007-02-01 Issue:2 Volume:221 Page:167-170
ISSN:0954-4070
Container-title:Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering
language:en
Short-container-title:Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering

Author:

Owens E H¹,Smith G H²,Reading I A³

Affiliation:

1. School of the Built Environment, Heriot-Watt University, Edinburgh, UK

2. School of Life Sciences (Marine Science), Heriot-Watt University, Edinburgh, UK

3. Precision Measurement Group, Singapore Institute of Manufacturing Technology, Singapore

Abstract

This paper describes an optical instrument that uses the transmission and scattering properties of water droplets in hydraulic fluids to measure the water fraction in the fluid. The instrument consists of a small optical chamber that can be built into an active hydraulic system. Light is supplied via a near-infrared light-emitting diode and is collected via a simple system of lenses and two wavelength-matched detectors placed at 90° to the beam path and directly in the path of the transmitted light. A novel method of measuring the water contamination is utilized that greatly reduces the signal noise caused by dynamic changes in the system during operation.

Publisher

SAGE Publications

Subject

Mechanical Engineering,Aerospace Engineering

Link

http://journals.sagepub.com/doi/pdf/10.1243/09544070JAUTO457

Reference5 articles.

1. Optical Metrology for Fluids, Combustion and Solids

2. Scattering by a Sphere

3. Near-Infrared Transmission Spectroscopy of Aqueous Solutions: Influence of Optical Pathlength on Signal-To-Noise Ratio