A surface acoustic wave gas sensor: detection of organophosphorus compounds
✍ Scribed by Corinne Déjous; Dominique Rebière; Jacques Pistré; Colette Tiret; Roger Planade
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 349 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0925-4005
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Surface acoustic wave (SAW) sensors have been coated with different organic polymers. Their sensitivities and selectivities towards gaseous solvents such as water, methanol and automotive fuel in dry air are determined. Four sensors are combined to form an array and a pattern-recognition technique (
A surface acoustic wave (SAW) sensor system utilizing a SAW resonator operating at 61 MHZ and a pair of parallel electrodes in series was applied to the detection of organic mixtures. Linear frequency shifts were observed as the water content of organic solvents changed. The detection limit was 2 mg