Oil quality sensor

Details Oil quality sensor Oil quality sensor

2005-08-30

2005-08-30

Stafira, Michael P. (Department: 2877)

Optics: measuring and testing

By particle light scattering

With photocell detection

C356S342000, C356S343000

Reexamination Certificate

active

06937332

ABSTRACT:
A fluid quality sensor system comprising a light source, a first light sensitive element disposed at a distance from the light source, forming a gap having dimensions suitable for permitting a fluid to flow therebetween, and aligned with the light source to receive light transmitted by the light source through the fluid, a second light sensitive element disposed perpendicular to a midpoint of a light path between the light source and the first light sensitive element, and a third light sensitive element disposed so as to form an acute angle at the midpoint with the light source.

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