In situ chlorine detection by ultraviolet absorption spectroscopy

A low-cost spectrophotometric sensor with real-time data collection and digital signal processing (DSP) capabilities was constructed for the in situ measurement of aqueous chlorine. Using a parallel spectrophotometer composed of a xenon light source, a flow-through sample chamber, a spectrograph wit...

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Bibliographic Details
Main Authors: Cassidy, C.S., Matthews, L.R., Church, K.H., Taylor, R.M., Teague, K.A.
Format: Conference Proceeding
Language:English
Subjects:
Digital signal processing
Electromagnetic wave absorption
Light sources
Optical arrays
Optical sensors
Optical signal processing
Photodiodes
Sensor arrays
Spectroscopy
Xenon
Online Access:Request full text
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Description
Summary:A low-cost spectrophotometric sensor with real-time data collection and digital signal processing (DSP) capabilities was constructed for the in situ measurement of aqueous chlorine. Using a parallel spectrophotometer composed of a xenon light source, a flow-through sample chamber, a spectrograph with a photodiode array detector, and a DSP, frequency-domain chlorine signatures were collected and processed. Data sets of varying concentration values were referenced to a commercially available colorimeter for evaluation of sensor performance and calculation of the optical parameters of aqueous hypochlorite.
DOI:10.1109/MWSCAS.2002.1186921