Abstract

We report on a compact, lightweight, and portable sensor for simultaneous detection of methane, nitrous oxide, and ammonia in atmosphere. The sensor embeds two detection modules based on quartz-enhanced photoacoustic spectroscopy, with two quantum cascade lasers as light sources and two spectrophones with custom-made quartz tuning forks. Dedicated electronic boards were designed to control the laser sources, to stabilize the gas flow and to perform data analysis, with a computer interface for an easy end-user operation. The sensor was calibrated in laboratory environment with certified concentrations. Detection limits well below the natural abundance in standard air were achieved.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.