Main Article Content
Abstract
Lubricating Oil in any machine is like vital fluid as blood in human body, unlike humans this vital fluid cannot be purified and hence it is to be replaced for proper functionality of any machine. So detection of quality of oil becomes more important. Many methods are proposed and for detection some of them are on-board sensors while some requires samples to be collected and sent to laboratory for finding quality. Many methods and sensors are presented in this paper. Mainly quality of oil is measured by detecting any of the following property:-
Refractive index, dielectric coefficient and viscosity of oil etc
These methods and sensors are still not very popular that is why most of detection work is done manually by an operator. The method used by operator is usually visual method (by color of oil).