Design of Small Methane Concentration Monitoring Home Alarm Device

Abstract:

The leak of coal gas and natural gas sometimes cause explosive accidents, which is great threat to people’s lives and property. In order to avoid similar disasters, we have designed a small portable alarm circuit which uses gas sensors as the main component to monitor the methane concentration. Different from former alarming devices, the design uses a SCM to sample three same sensor circuits. Once the density is exceeded, the SCM immediately drives the following alarm device to alarm, which can make up for the shortcoming of a single sensor.

• Periodical: Applied Mechanics and Materials (Volumes 170-173)
• Pages: 3406-3410
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.170-173.3406
• Online since: May 2012
• Authors: Hui Jie Ding, Ren Jie Zhang
• Keywords: Alarm Device, Concentration Monitoring, Gas Sensor, Methane

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