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https://hdl.handle.net/20.500.14279/1667| Title: | Hydrogen gas detection via photothermal deflection measurement |
| Authors: | Kalli, Kyriacos Othonos, Andreas S. Christofidès, Constantinos |
| metadata.dc.contributor.other: | Καλλή, Κυριάκος |
| Major Field of Science: | Engineering and Technology |
| Field Category: | Electrical Engineering - Electronic Engineering - Information Engineering |
| Keywords: | Spectroscopy;Hydrogen;Thin films;Gas |
| Issue Date: | 1997 |
| Source: | Review of Scientific Instruments,1997, vol. 68, no. 9, pp. 3544-3552 |
| Volume: | 68 |
| Issue: | 9 |
| Start page: | 3544 |
| End page: | 3552 |
| Journal: | Review of Scientific Instruments |
| Abstract: | A study of a thermal wave hydrogen sensor interrogated via transverse optical beam deflection spectroscopy is presented. The sensor is a thin film polyvinylidene fluoride film coated with a thin palladium layer. The sensitivity to hydrogen results from thermal boundary condition changes at the gas-film interface and depends upon the thermophysical properties of the gas. A simple one-dimensional model is developed to qualitatively and semi-quantitatively describe the experimental results and it shows good agreement with the experiment. Concentrations of 0.1% hydrogen in the presence of a balanced air mixture and at room temperature were measured for this sensor and they indicate possible sensitivities approaching 100 ppm. |
| URI: | https://hdl.handle.net/20.500.14279/1667 |
| ISSN: | 00346748 |
| DOI: | 10.1063/1.1148320 |
| Rights: | © American Institute of Physics. |
| Type: | Article |
| Affiliation : | University of Cyprus |
| Publication Type: | Peer Reviewed |
| Appears in Collections: | Άρθρα/Articles |
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