Water Vapor Sensors Based on the Swelling of Relief Gelatin Gratings
We report on a novel device to measure relative humidity. The sensor is based on surface diffraction gratings made of gelatin. This material swells and shrinks according to the content of water vapor in air. By sending a light beam to the grating, diffracted orders appear. Due to the gelatin swellin...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/584324 |
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| _version_ | 1832567220470808576 |
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| author | Sergio Calixto Miguel V. Andres |
| author_facet | Sergio Calixto Miguel V. Andres |
| author_sort | Sergio Calixto |
| collection | DOAJ |
| description | We report on a novel device to measure relative humidity. The sensor is based on surface diffraction gratings made of gelatin. This material swells and shrinks according to the content of water vapor in air. By sending a light beam to the grating, diffracted orders appear. Due to the gelatin swelling or shrinking, first order intensity changes according to the relative humidity. Calibration curves relating intensity versus relative humidity have been found. The fabrication process of diffraction gratings and the testing of the prototype sensing devices are described. |
| format | Article |
| id | doaj-art-2817494c165944cfa5006b6fa593cced |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-2817494c165944cfa5006b6fa593cced2025-02-03T01:02:02ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422015-01-01201510.1155/2015/584324584324Water Vapor Sensors Based on the Swelling of Relief Gelatin GratingsSergio Calixto0Miguel V. Andres1Centro de Investigaciones en Optica, Loma del Bosque 115, 37000 León, GTO, MexicoDepartamento de Fisica Aplicada y Electromagnetismo, Universidad de Valencia, Dr. Moliner 50, Burjassot, 46100 València, SpainWe report on a novel device to measure relative humidity. The sensor is based on surface diffraction gratings made of gelatin. This material swells and shrinks according to the content of water vapor in air. By sending a light beam to the grating, diffracted orders appear. Due to the gelatin swelling or shrinking, first order intensity changes according to the relative humidity. Calibration curves relating intensity versus relative humidity have been found. The fabrication process of diffraction gratings and the testing of the prototype sensing devices are described.http://dx.doi.org/10.1155/2015/584324 |
| spellingShingle | Sergio Calixto Miguel V. Andres Water Vapor Sensors Based on the Swelling of Relief Gelatin Gratings Advances in Materials Science and Engineering |
| title | Water Vapor Sensors Based on the Swelling of Relief Gelatin Gratings |
| title_full | Water Vapor Sensors Based on the Swelling of Relief Gelatin Gratings |
| title_fullStr | Water Vapor Sensors Based on the Swelling of Relief Gelatin Gratings |
| title_full_unstemmed | Water Vapor Sensors Based on the Swelling of Relief Gelatin Gratings |
| title_short | Water Vapor Sensors Based on the Swelling of Relief Gelatin Gratings |
| title_sort | water vapor sensors based on the swelling of relief gelatin gratings |
| url | http://dx.doi.org/10.1155/2015/584324 |
| work_keys_str_mv | AT sergiocalixto watervaporsensorsbasedontheswellingofreliefgelatingratings AT miguelvandres watervaporsensorsbasedontheswellingofreliefgelatingratings |