Device and method for determining contamination of a light perme

Details Device and method for determining contamination of a light perme Device and method for determining contamination of a light perme

1995-07-06

1997-10-28

Nelms, David C.

Optics: measuring and testing

Oil testing

356364, 356370, 356442, 250301, G01N 3328, G01N 2100, G01T 1167

Patent

active

056822316

ABSTRACT:
A device and method is provided for determining the degradation of oil after use of the same in an engine or the like. A test sample material is placed in a transparent container and various intensities of light are passed therethrough. A photovoltaic sensor senses the light polarized by the transparent container and the test sample and generates a first set of signals responsive thereto. The methodology is repeated with a sample of used automotive engine oil. The first and second set of signals are compared, and oil degradation is determined therefrom. Where the sensor detects and generates a signal only when the light intensity is equal to or less than the saturation intensity of the sensor, that is from the instant the light is first detected up until saturation of the sensor.

REFERENCES:
patent: 3510666 (1970-05-01), Topol
patent: 3578865 (1971-05-01), Traver
patent: 3892485 (1975-07-01), Merritt et al.
patent: 3942360 (1976-03-01), Wada
patent: 4003661 (1977-01-01), Yamano
patent: 4146799 (1979-03-01), Pitt et al.
patent: 4201471 (1980-05-01), Pitt et al.
patent: 4265535 (1981-05-01), Pitt
patent: 4649711 (1987-03-01), Sibley et al.
patent: 4699509 (1987-10-01), Kamiya et al.
patent: 4957363 (1990-09-01), Takeda et al.
patent: 5049742 (1991-09-01), Hosonuma et al.
patent: 5266800 (1993-11-01), Mullins
patent: 5309213 (1994-05-01), Desjardins et al.
patent: 5506679 (1996-04-01), Cooper et al.

Affiliated with

Also associated with

Rating

Device and method for determining contamination of a light perme does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device and method for determining contamination of a light perme, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device and method for determining contamination of a light perme will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1029350