Fiber optic system for water spectroscopy

An innovative series of optical fiber sensors for water monitoring, based on spectroscopic interrogation, is presented. Two types of custom-design instrumentation were developed, both making use of LED light sources and low-cost detectors to perform broadband spectral measurements in the visible spectral range. The first was designed especially to perform direct absorption spectroscopy, while the second provided turbidity measurements. Designed for water analysis and industrial process control, the proposed instruments can be used by operators with little or no technical skills.