Low-Power Chemiresistive Gas Sensors for Transformer Fault Diagnosis

Molecules, Journal Year: 2024, Volume and Issue: 29(19), P. 4625 - 4625

Published: Sept. 29, 2024

Dissolved gas analysis (DGA) is considered to be the most convenient and effective approach for transformer fault diagnosis. Due their excellent performance development potential, chemiresistive sensors are anticipated supersede traditional chromatography in dissolved of transformers. However, high operating temperature power consumption restrict deployment battery-powered devices. This review examines underlying principles sensors. It comprehensively summarizes recent advances low-power detection characteristic gases (H2, C2H2, CH4, C2H6, C2H4, CO, CO2). Emphasis placed on synthesis methods sensitive materials properties. The investigations have yielded substantial experimental data, indicating that adjusting particle size morphology structure combining them with noble metal doping principal enhancing sensitivity reducing Additionally, strategies overcome significant challenge cross-sensitivity encountered applications provided. Finally, future direction DGA envisioned, offering guidance developing applying novel gas-sensitive

Language: Английский

Pulse-Driven MEMS NO2 Sensors Based on Hierarchical In2O3 Nanostructures for Sensitive and Ultra-Low Power Detection

Sensors, Journal Year: 2024, Volume and Issue: 24(22), P. 7188 - 7188

Published: Nov. 9, 2024

As the mainstream type of gas sensors, metal oxide semiconductor (MOS) sensors have garnered widespread attention due to their high sensitivity, fast response time, broad detection spectrum, long lifetime, low cost, and simple structure. However, power consumption operating temperature limits its application in some scenarios such as mobile wearable devices. At same highly sensitive low-power are becoming more necessary indispensable growth environmental problems development miniaturized sensing technologies. In this work, hierarchical indium (In

Language: Английский