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A 1531.52 nm Tunable Diode Laser-Based System for High-Sensitivity Remote Monitoring of Acetylene and Ammonia Leaks in Industrial Plants

Roy, A., Chakraborty, A. L. and Grattan, K. T. V. ORCID: 0000-0003-2250-3832 (2021). A 1531.52 nm Tunable Diode Laser-Based System for High-Sensitivity Remote Monitoring of Acetylene and Ammonia Leaks in Industrial Plants. Paper presented at the International Conference on Optics & Electro-Optics, 19-22 Oct 2019, Dehradun, India.

Abstract

We demonstrate a 1531.52 nm tunable diode laser -based sensor system that can be used to build a dense, wide-area sensor network for in situ multi-point detection of acetylene (C2H2) and ammonia (NH3) leaks in industrial safety applications. The detection limit of the sensor is 16 ppm for C2H2 and 228 ppm for NH3 using a 28 cm long single-pass gas cell. High temperature measurements are also demonstrated in a tube furnace using a 1392.54 nm laser-based sensor. The accuracy of temperature measurement is 92.13% at 500 K and 96.79% at 700 K.

Publication Type: Conference or Workshop Item (Paper)
Publisher Keywords: tunable diode laser spectroscopy, ratio thermometry, chemical sensing
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Departments: School of Mathematics, Computer Science & Engineering > Engineering > Electrical & Electronic Engineering
Date available in CRO: 18 Jun 2021 08:32
Date deposited: 18 June 2021
Date of acceptance: 1 March 2021
Date of first online publication: 2 March 2021
URI: https://openaccess.city.ac.uk/id/eprint/26304
[img] Text - Accepted Version
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