Measuring device detecting oil in watery liquids - has UV light source and photodetector connected by light conductors to measurement point

摘要

The device uses the material dependent fluorescence of the liquid. It has at least a first light conductor running from a case with an ultraviolet light source to the measurement point, and a second light conductor connecting the measurement point with a photosensitive detector. Light conductors (24, 26) running near to each other, and the detector (32) at the second light conductor (26) end near the case are placed in a common protective tube (12), whose one end is fastened to the case (10).