Abstract
A microsensor array with the highly sensitive porous tin oxide thin films employing the noble metal catalysts of Pt and Au on a new microhotplate, dangled in air by Pt bonding wires, has been designed and fabricated. The microhot plate was made of N/O/N Si diaphragm with area of 1.9 mm × 2.1 mm. Power consumption was reduced by decreasing the thickness of substrate. The sensor array was applied to recognizing the explosive gases within the range of threshold limit values (TLVs), employing principal component analysis. The result showed that the micro sensor array was qualified for classifying obviously the kinds and quantities of the explosive gases.
Original language | English |
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Pages (from-to) | 250-255 |
Number of pages | 6 |
Journal | Sensors and Actuators, B: Chemical |
Volume | 83 |
Issue number | 1-3 |
DOIs | |
State | Published - 15 Mar 2002 |
Event | Selected papers from Transduckers '01 Eurosensors XV (Transduckers 2001) - Munich, Germany Duration: 10 Jun 2001 → 14 Jun 2001 |
Keywords
- Explosive gases
- Microgas sensor
- Microhotplate
- Tin oxide