DocumentCode
1135457
Title
Differential absorption fiber-optic liquid level sensor
Author
Yakymyshyn, C.P. ; Pollock, C.R.
Author_Institution
Cornell University, Ithaca, NY, USA
Volume
5
Issue
7
fYear
1987
fDate
7/1/1987 12:00:00 AM
Firstpage
941
Lastpage
946
Abstract
An optical fiber liquid level sensor based on differential optical absorption is described. The sensor uses a two-wavelength ratiometric approach to cancel out errors arising from variations in fuel characteristics, tank vibrations, etc. The sensor is mechanically simple and uses inexpensive LED sources and multimode optical fiber. The sensor displays ±2-mm resolution over an 18-cm range with immunity to 5° surface tilt variations and immunity to optical fiber connector and bending loss variations up to 1 dB.
Keywords
Infrared propagation, absorbing media; Liquid level measurements; Optical fiber transducers; Absorption; Displays; Fuels; Level control; Light emitting diodes; Optical fiber sensors; Optical fibers; Optical sensors; Sensor phenomena and characterization; Vibrations;
fLanguage
English
Journal_Title
Lightwave Technology, Journal of
Publisher
ieee
ISSN
0733-8724
Type
jour
DOI
10.1109/JLT.1987.1075599
Filename
1075599
Link To Document