Gas identification with tin oxide sensor array and self-organizing maps: adaptive correction of sensor drifts
Low-cost tin oxide gas sensors are inherently nonspecific. In addition, they have several undesirable characteristics such as slow response, nonlinearities, and long-term drifts. This paper shows that the combination of a gas-sensor array together with self-organizing maps (SOM's) permit succes...
| Authors: | , , , |
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| Format: | article |
| Status: | Published version |
| Publication Date: | 1998 |
| Country: | España |
| Institution: | Universidad de Barcelona |
| Repository: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/8684 |
| Online Access: | https://hdl.handle.net/2445/8684 |
| Access Level: | Open access |
| Keyword: | Control de la contaminació Detectors de gasos Gas detectors Pollution control industry |
| Summary: | Low-cost tin oxide gas sensors are inherently nonspecific. In addition, they have several undesirable characteristics such as slow response, nonlinearities, and long-term drifts. This paper shows that the combination of a gas-sensor array together with self-organizing maps (SOM's) permit success in gas classification problems. The system is able to determine the gas present in an atmosphere with error rates lower than 3%. Correction of the sensor's drift with an adaptive SOM has also been investigated |
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