title: Sensing array for coherence analysis of modulated aquatic chemical plumes.
abstract: Here we show that an array of sensors can provide information about the spatial and temporal distribution of chemicals in liquid turbulent plumes. Planar laser induced fluorescence (PLIF) and amperometric sensor arrays were used to record signals from modulated chemical plumes released into a recirculating flume. Coherence analysis was applied to extract the frequency components contained in the sensor response. Effects due to release distance, modulation frequency, and array orientation were investigated. This study has demonstrated that frequency encoded information can be extracted from a turbulent chemical plume using an array of amperometric sensors with optimized three-dimensional geometry and tuning.
authors.affiliation: School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA.
authors.forename: Ryan S
authors.initials: RS
authors.lastname: Cantor
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Ishida
authors.forename: Jirí
authors.initials: J
authors.lastname: Janata