A flexible multi-gas concentration meter

Gas concentration measurement is a very important task to several industries, such as chemical, oil, nuclear and others. The goal is to assure the final product quality or to monitor the gas concentration level that can damage process, installations, humans and / or environment. This work develops an embedded system (hardware + software) to gas concentration measurement. The meter must to do the acquisition and processing signals from several transducers in order to infer simultaneously the concentration of different gases in the environment. The measurements can be sent to a remote computer at a control central room, for example, by means of an industrial network protocol. In the remote computer, it is possible to monitor the gas emissions, to calibrate sensors, to correct distortions, to send alarms and others tasks. One advantages of the multi gas meter is its functioning with sensors from different suppliers and it allows to measure different types of emissions.