Abstract: A method and system of enhancing online reflected light ferrograph images.

Abstract: A model determining method including obtaining a first image sample, inputting the first image sample to an initial encoder of an initial identification model to obtain a first image sample feature, generating a second image sample feature based on the first image sample feature, separately inputting the first and second image sample features to an initial decoder to obtain a first texture image and a second texture image, inputting the first image sample feature and the first texture image to an initial classifier to obtain a first prediction result, inputting the second image sample feature and the second texture image to the initial classifier to obtain a second prediction result, generating an identification loss function based on a difference between each of the first and the second prediction results and an identification tag, and training an initial identification model using the identification loss function to obtain an updated identification model.

Abstract: An ultrasonic method and system for simultaneously measuring lubrication film thickness and liner wear of sliding bearings. The method includes: installing an ultrasonic sensor on a bearing bush; sending, by a processor, signals to an ultrasonic pulser-receiver to generate voltage pulses to excite the ultrasonic sensor to generate ultrasonic pulses; collecting an echo signal of an unworn liner-air interface as a reference signal Ba(f); collecting an echo signal of worn liner-lubrication film interface as to-be-measured signal Bow(f); obtaining an amplitude spectrum |Ba(f)| and a phase spectrum ?Baof Ba(f), an amplitude spectrum |Bow(f)| and a phase spectrum ?Bow(f) of Bow(f) by FFT; calculating an amplitude spectrum |Rw(f)|, and a phase spectrum ?Rw(f) of a reflection coefficient; based on |Rw(f)|, calculating lubrication film thickness d via a resonance model or a spring model; and based on ?Rw(f), calculating liner worn thickness via wear model under different film thicknesses.

Abstract: A method and system of enhancing online reflected light ferrograph images.