Temperature Gradient Effect on Gas Discrimination Power of a Metal-Oxide Thin-Film Sensor Microarray
Abstract: The paper presents results concerning the effect of spatial inhomogeneous operating temperature on the gas discrimination power of a gas-sensor microarray, with the latter based on a thin SnO2 film employed in the KAMINA electronic nose. Three different temperature distributions over the s...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2004-05-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/4/4/37/ |
| _version_ | 1798025545734160384 |
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| author | Joachim Goschnick Markus Frietsch Ilya Kiselev Victor V. Sysoev |
| author_facet | Joachim Goschnick Markus Frietsch Ilya Kiselev Victor V. Sysoev |
| author_sort | Joachim Goschnick |
| collection | DOAJ |
| description | Abstract: The paper presents results concerning the effect of spatial inhomogeneous operating temperature on the gas discrimination power of a gas-sensor microarray, with the latter based on a thin SnO2 film employed in the KAMINA electronic nose. Three different temperature distributions over the substrate are discussed: a nearly homogeneous one and two temperature gradients, equal to approx. 3.3 oC/mm and 6.7 oC/mm, applied across the sensor elements (segments) of the array. The gas discrimination power of the microarray is judged by using the Mahalanobis distance in the LDA (Linear Discrimination Analysis) coordinate system between the data clusters obtained by the response of the microarray to four target vapors: ethanol, acetone, propanol and ammonia. It is shown that the application of a temperature gradient increases the gas discrimination power of the microarray by up to 35 %. |
| first_indexed | 2024-04-11T18:20:33Z |
| format | Article |
| id | doaj.art-101e70fa721948cf81341623d648df8d |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T18:20:33Z |
| publishDate | 2004-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-101e70fa721948cf81341623d648df8d2022-12-22T04:09:47ZengMDPI AGSensors1424-82202004-05-0144374610.3390/s40400037Temperature Gradient Effect on Gas Discrimination Power of a Metal-Oxide Thin-Film Sensor MicroarrayJoachim GoschnickMarkus FrietschIlya KiselevVictor V. SysoevAbstract: The paper presents results concerning the effect of spatial inhomogeneous operating temperature on the gas discrimination power of a gas-sensor microarray, with the latter based on a thin SnO2 film employed in the KAMINA electronic nose. Three different temperature distributions over the substrate are discussed: a nearly homogeneous one and two temperature gradients, equal to approx. 3.3 oC/mm and 6.7 oC/mm, applied across the sensor elements (segments) of the array. The gas discrimination power of the microarray is judged by using the Mahalanobis distance in the LDA (Linear Discrimination Analysis) coordinate system between the data clusters obtained by the response of the microarray to four target vapors: ethanol, acetone, propanol and ammonia. It is shown that the application of a temperature gradient increases the gas discrimination power of the microarray by up to 35 %.http://www.mdpi.com/1424-8220/4/4/37/Electronic nosegas-sensor microarraymetal-oxide thin film |
| spellingShingle | Joachim Goschnick Markus Frietsch Ilya Kiselev Victor V. Sysoev Temperature Gradient Effect on Gas Discrimination Power of a Metal-Oxide Thin-Film Sensor Microarray Sensors Electronic nose gas-sensor microarray metal-oxide thin film |
| title | Temperature Gradient Effect on Gas Discrimination Power of a Metal-Oxide Thin-Film Sensor Microarray |
| title_full | Temperature Gradient Effect on Gas Discrimination Power of a Metal-Oxide Thin-Film Sensor Microarray |
| title_fullStr | Temperature Gradient Effect on Gas Discrimination Power of a Metal-Oxide Thin-Film Sensor Microarray |
| title_full_unstemmed | Temperature Gradient Effect on Gas Discrimination Power of a Metal-Oxide Thin-Film Sensor Microarray |
| title_short | Temperature Gradient Effect on Gas Discrimination Power of a Metal-Oxide Thin-Film Sensor Microarray |
| title_sort | temperature gradient effect on gas discrimination power of a metal oxide thin film sensor microarray |
| topic | Electronic nose gas-sensor microarray metal-oxide thin film |
| url | http://www.mdpi.com/1424-8220/4/4/37/ |
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