دورية أكاديمية
Real-time active-gas imaging of small gas leaks
| العنوان: | Real-time active-gas imaging of small gas leaks |
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| المؤلفون: | M. Bergau, T. Strahl, B. Scherer, J. Wöllenstein |
| المصدر: | Journal of Sensors and Sensor Systems, Vol 12, Pp 61-68 (2023) |
| بيانات النشر: | Copernicus Publications, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Technology |
| مصطلحات موضوعية: | Technology |
| الوصف: | To tackle global warming, the reduction of greenhouse gas leaks is of great public interest. While state-of-the-art optical gas imaging (OGI) cameras can visualize larger gas leaks with magnitudes of liters per minute in the case of methane, a much more sensitive laser-based approach is introduced here. This is accomplished using an infrared camera in combination with an interband cascade laser (ICL) as active illumination. The laser beam diverges such that it covers roughly half of the camera's field of view. Three-image batches are recorded to perform classic direct absorption spectroscopy (DAS) at the image scale. The obtained concentration length in parts per million meter (ppm m) is validated using measurements with varying known methane concentrations, different reflective elements, and varying distances. The real-time camera was able to record and quantify a methane leak as low as 40 mL min−1. Possible incorrect information due to moving objects is taken into account using an adapted frame-difference approach. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2194-8771 2194-878X |
| Relation: | https://jsss.copernicus.org/articles/12/61/2023/jsss-12-61-2023.pdf; https://doaj.org/toc/2194-8771; https://doaj.org/toc/2194-878X |
| DOI: | 10.5194/jsss-12-61-2023 |
| URL الوصول: | https://doaj.org/article/a86ed1e5a47946249aac6e72f5c058d2 |
| رقم الأكسشن: | edsdoj.86ed1e5a47946249aac6e72f5c058d2 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 21948771 2194878X |
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| DOI: | 10.5194/jsss-12-61-2023 |