This works aims to study the computation time, the compactness and the effectiveness of a real-time algorithm, for measuring peak absorbance area of CH4 (methane). The proposed algorithm is implemented in Field-Programmable Gate-Arrays (FPGAs) together with the infrastructures, to lock the laser of a spectroscopy setup. The experimental results show a compactness of 95% on a portable spartan6-lx9 FPGA, an accuracy of 0.1% and a computation time of roughly 20 clock cycles. The compactness of the resulting design allows its use in inaccessible and harsh environments, for gas monitoring.

© 2016 Optical Society of America

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