Portable H2S Sensing Instrument Using SnO2 Nanowires for Real-Time Air Pollution Monitoring

The development of low-power, portable devices with relatively low-cost gas sensors has revolutionized the field of air pollution monitoring. These instruments are essential for mapping pollution levels in real-time in urban areas and other living environments. The high cost of installation and maintenance of stationary analysis systems using methods such as gas chromatography limits their applications.

In this context, we report on the realization of a portable H2S sensing instrument based on SnO2 nanowires. The electronic system and software for signal acquisition, data processing, data storage, and output of the instrument were developed. A prototype for zero series of the instrument was also realized.

The sensor chip was prepared by the on-chip growth of SnO2 nanowires directly from the edges of Pt electrodes. This innovative approach enables the fabrication of high-sensitivity gas sensors at a relatively low cost.

The importance of monitoring toxic gases in air cannot be overstated, especially in developing countries where air pollution has rapidly become severe. The use of portable H2S sensing instruments like the one described here can help mitigate this problem by providing real-time information on pollutant levels.

To operate Altium Designer Viewer Portable, you will need a computer with the following specifications:

* Microsoft Office: 32-bit or 64-bit version (Microsoft Excel is required to create BOM, Microsoft Access is required for libraries based on DbLib databases)

* Adobe Reader (version XI or newer to view 3D PDF)

* 3D manipulator for three-dimensional design of printed circuit boards, such as Space Navigator

* Two monitors with a screen resolution of 2560×1440 (or higher)

* High-performance graphics card (supporting DirectX 10 or higher), such as the GeForce GTX 1060 / Radeon RX 470

* 10 GB of free hard disk space (installation and user files)

* Intel Core i7 Processor or equivalent

* Windows 7 (64-bit only), Windows 8 (64-bit only) or Windows 10 (64-bit only)

By providing a portable, low-cost gas sensor, we aim to make air pollution monitoring more accessible and effective in various environments.

Altium designer viewer portable