The degradation diagnostic device and its degradation diagnostic mannered null lubricant and the consistency Characteristic material

摘要

PROBLEM TO BE SOLVED: To easily diagnose the deterioration state of a lubricant or a viscous substance by using a very small amount of the lubricant and the viscous substance without pretreating them.;SOLUTION: The deterioration diagnostic device of the lubricant and the viscous substance is equipped with: a sample placing stand 12 provided with a sample receiving plate 14 in a rotatable manner; a drive device 22 provided with a sample pressing plate 24 arranged on the upper side opposed to the sample receiving plate 14 so as to be advanced and retracted, and receiving a drive control indication signal from the outside to set a sample 1 to a desired thickness while advancing the sample pressing plate 24; a means 21 or 4 for alternately repeatedly rotating the sample receiving plate 14 at a predetermined frequency in a predetermined amplitude value when the sample 1 is set to a predetermined thickness; a torque sensor 11 for measuring a signal of the level according to the bending deformation stress due to the viscosity of the sample; and a signal processing part 4 for acquiring a predetermined physical quantity diagnosing the deterioration of the sample from the level signal measured by the sensor 11.;COPYRIGHT: (C)2008,JPO&INPIT