title: Development of a tunable diode laser absorption sensor for online monitoring of industrial gas total emissions based on optical scintillation cross-correlation technique.
abstract: We report the first application of gas total emission using a DFB diode laser for gas concentration measurements combined with two LEDs for gas velocity measurements. In situ gas total emissions and particle density measurements in an industrial pipeline using simultaneous tunable diode laser absorption spectroscopy (TDLAS) and optical scintillation cross-correlation technique (OSCC) are presented. Velocity mean values obtained are 7.59 m/s (OSCC, standard deviation is 1.37 m/s) and 8.20 m/s (Pitot tube, standard deviation is 1.47 m/s) in a steel plant pipeline for comparison. Our experiments demonstrate that the combined system of TDLAS and OSCC provides a new versatile tool for accurate measurements of total gas emissions.
authors.forename: Zhirong
authors.initials: Z
authors.lastname: Zhang
authors.forename: Tao
authors.initials: T
authors.lastname: Pang
authors.forename: Yang
authors.initials: Y
authors.lastname: Yang
authors.forename: Hua
authors.initials: H
authors.lastname: Xia
authors.forename: Xiaojuan
authors.initials: X
authors.lastname: Cui
authors.forename: Pengshuai
authors.initials: P
authors.lastname: Sun
authors.forename: Bian
authors.initials: B
authors.lastname: Wu
authors.forename: Yu
authors.initials: Y
authors.lastname: Wang
authors.forename: Markus W
authors.initials: MW
authors.lastname: Sigrist
authors.forename: Fengzhong
authors.initials: F
authors.lastname: Dong