Oil film thickness measuring device and oil film thickness measuring method

摘要

PROBLEM TO BE SOLVED: To accurately measure an oil film thickness when grease is used between two objects contacting each other as a lubricant.SOLUTION: An oil film thickness measurement method includes: a grease preparation procedure for preparing a grease for oil film thickness measurement in which fluorescent materials are dispersed; a luminance measurement procedure for separating and measuring luminance of the fluorescent emitted from a base oil and the luminance of the fluoresce emitted from a thickening agent; a first calculation procedure for calculating a thickness component of the base oil based on the luminance of the fluorescent emitted from the base oil; a second calculation procedure for calculating the thickness component of the thickening agent based on the luminance of the fluorescent emitted from the thickening agent; and a third calculation procedure for calculating the oil film thickness of the grease based on the thickness component of the base oil obtained by the first calculation procedure and the thickness component of the thickening agent obtained by the second calculation procedure.SELECTED DRAWING: Figure 1