This paper presents a new method for analysis of the head of intelligent fiber optics sensor assigne dfor liquid type distinction. The sensro head construction is simply, because it is optical fiber tip. The reflected power during head submerging, submersion, emerging and emergence in detected medium is measured for liquid distinction purposes. The classical fiber optic detectors with head fiber coating with chemical substances or with additional optical subassembly are more complex in construction and less comfortable during operation.
Michal Borecki, Michal Borecki,
"Intelligent fiber optic sensor head working condition analysis", Proc. SPIE 5028, Optical Fibers and Their Applications VIII, (14 April 2003); doi: 10.1117/12.497745; https://doi.org/10.1117/12.497745