1967
DOI: 10.1243/pime_conf_1967_182_403_02
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Paper 4: Measurement of Oil Film Thickness between Rolling Discs Using a Variable Reluctance Technique

Abstract: A variable magnetic reluctance technique has been developed and used to measure the thickness of oil films between smooth rolling discs under various conditions of load, speed, and temperature using two different lubricants. In repeating the experimental conditions of other workers who measured the capacitance of oil films between discs, good correlation is demonstrated between the results of capacitance and reluctance measurements. Since it is unlikely that the two methods suffer from the same uncertainties … Show more

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“…They recommended electric circuits employing amplitude modulation instead of frequency modulation, an AC current source-type circuit and a fixed-geometry capacitor for evaluation of the dielectric constant of the oil. Another electrical method for measuring lubricant film thickness in elastohydrodynamic contacts is the magnetic reluctance method, originally developed by Cameron and Gregory [29]. They successfully applied this method to the measurement of oil film thickness down to less than one micrometer in rolling line contacts formed between parallel-axes rollers.…”
Section: Measurement Of Lubricant Film Thicknessmentioning
confidence: 99%
“…They recommended electric circuits employing amplitude modulation instead of frequency modulation, an AC current source-type circuit and a fixed-geometry capacitor for evaluation of the dielectric constant of the oil. Another electrical method for measuring lubricant film thickness in elastohydrodynamic contacts is the magnetic reluctance method, originally developed by Cameron and Gregory [29]. They successfully applied this method to the measurement of oil film thickness down to less than one micrometer in rolling line contacts formed between parallel-axes rollers.…”
Section: Measurement Of Lubricant Film Thicknessmentioning
confidence: 99%