PCS EHD2 - Ultra Thin Film Measurement System
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EHD2 - Ultra Thin Film Measurement System
The EHD2 Ultra Thin Film Measurement System is the latest evolution of the successful EHD instrument which to date has sold over 50 systems worldwide.
It is now a fully automated computer controlled instrument for measuring the film thickness and traction coefficient (friction coefficient) of lubricants in the elastohydrodynamic (EHD) lubricating regime.
The instrument can measure lubricant film thickness down to 1 nm with a precision of +/- 1 nm. The contact pressures and shear rates in this contact are similar to those found in, for example, gears, rolling element bearings and cams. In addition to film thickness measurements, traction coefficients can be measured at any slide/roll ratio from pure rolling up to 100%. The instrument was developed from research work performed at Imperial College and there are currently over 60 systems in use worldwide.
Applications include:
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Evaluation of film forming and frictional properties of oils and greases
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Starvation and reflow characteristics of grease lubricated components
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Fuel economy prediction of candidate crankcase oils
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Performance prediction of oil-in-water emulsion rolling mill lubricants
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Fundamental investigations of the high pressure/high shear behaviour of fluids such as liquid crystals
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Investigation of boundary additive performance
