Energy requirements for methods improving gas detection by modulating physical properties of resistive gas sensors

[摘要] One of the most important disadvantage of resistive gas sensors is their limited gas selectivity. Therefore, various methods modulating their physical properties are used to improve gas detection. These methods are usually limited to temperature modulation or UV light irradiation for the layers exhibiting photocatalytic effect. These methods cause increased energy consumption. In our study we consider how much energy has to be supplied to utilize such methods and what kind of additional information can be gathered. We present experimental results of selected resistive gas sensors, including commercial and prototype constructions, and practical solutions of modulating their physical properties.

[发布机构] Department of Metrology and Optoelectronics, Faculty of Electronics, Telecommunications and Informatics, Gdask University of Technology, Gdask, Poland^1

[关键词] Energy requirements;Gas detection;Gas selectivity;Photocatalytic effect;Practical solutions;Resistive gas sensors;Temperature modulation;UV-light irradiation