A Raspberry Pi-based field-deployable tunable diode laser spectroscopy system for the detection of CO2 at 2003.5 nm

Source
Proceedings of the 2015 International Conference on Microwave and Photonics Icmap 2015
Date Issued
2016-02-16
Author(s)
Gandhi, Vaibhav
Heda, Shashank
Anand, Rishab
Zarin, A. S.
Upadhyay, Abhishek
DOI
Abstract
This work reports a real-time, non-invasive, compact and field deployable CO2 sensor using tunable diode laser spectroscopy (TDLAS). Direct detection and 2f-WMS was used to measure the gas parameters utilizing a low power vertical cavity surface emitting laser (VCSEL) emitting across 2003.5nm where CO2 has a strong absorption line. A Raspberry Pi microcontroller along with a serial analog-to-digital (ADC) convertor was used for data acquisition and processing to make the system compact and field deployable.
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