• raman kumar

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. The Lab. tests have the ability of giving a moderately economical proportion of oil value. Notwithstanding, the worth and essentialness of this sort of test is subject to various components, including recognizable proof of the motor's particular needs, clear and predictable data from the motor either in dynamometer based testing procedure or field understanding, and a comprehension of the connection among the motor's needs and the oil's physical and additionally concoction properties.

Dielectric of oil ,Oil Gelation , phosphorus emission index (PEI),Lubricating oil, oil quality, optical sensor, inductive sensor.

"Engine oil quality and its relation to viscosity", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 3, page no.1530-1533, March-2019, Available :http://www.jetir.org/papers/JETIREL06234.pdf

"Engine oil quality and its relation to viscosity", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 3, page no. pp1530-1533, March-2019, Available at : http://www.jetir.org/papers/JETIREL06234.pdf