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It is widely used in industries such as natural gas transportation, chemical, and electric power industries. With the development of infrared detector technology, uncooled thermal imagers are undergoing a developmental stage of technological advancement and widespread application. This article introduces a gas imaging principle and radiation transfer model, focusing on passive imaging technology and active imaging technology. Combined with the actual analysis, the application scenarios using uncooled thermal imaging cameras for gas imaging measurement are analyzed. Finally, the limitations and challenges of the development of gas imaging technology are analyzed.<\/jats:p>","DOI":"10.3390\/s24041327","type":"journal-article","created":{"date-parts":[[2024,2,19]],"date-time":"2024-02-19T03:18:38Z","timestamp":1708312718000},"page":"1327","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Gas Imaging with Uncooled Thermal Imager"],"prefix":"10.3390","volume":"24","author":[{"given":"Mengjie","family":"Zhang","sequence":"first","affiliation":[{"name":"College of Electronic Engineering (College of Artificial Intelligence), South China Agricultural University, 486 Wushan Road, Guangzhou 510642, China"},{"name":"Research Center of Intelligent Equipment, Beijing Academy of Agriculture and Forestry Sciences, 11 Shuguang Garden Middle Road, Beijing 100097, China"},{"name":"Key Laboratory of Agricultural Sensors, Ministry of Agriculture and Rural Affairs, Beijing 100097, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Guanghai","family":"Chen","sequence":"additional","affiliation":[{"name":"College of Electronic Engineering (College of Artificial Intelligence), South China Agricultural University, 486 Wushan Road, Guangzhou 510642, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peng","family":"Lin","sequence":"additional","affiliation":[{"name":"College of Electronic Engineering (College of Artificial Intelligence), South China Agricultural University, 486 Wushan Road, Guangzhou 510642, China"},{"name":"Research Center of Intelligent Equipment, Beijing Academy of Agriculture and Forestry Sciences, 11 Shuguang Garden Middle Road, Beijing 100097, China"},{"name":"Key Laboratory of Agricultural Sensors, Ministry of Agriculture and Rural Affairs, Beijing 100097, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daming","family":"Dong","sequence":"additional","affiliation":[{"name":"Research Center of Intelligent Equipment, Beijing Academy of Agriculture and Forestry Sciences, 11 Shuguang Garden Middle Road, Beijing 100097, China"},{"name":"Key Laboratory of Agricultural Sensors, Ministry of Agriculture and Rural Affairs, Beijing 100097, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7543-1540","authenticated-orcid":false,"given":"Leizi","family":"Jiao","sequence":"additional","affiliation":[{"name":"Research Center of Intelligent Equipment, Beijing Academy of Agriculture and Forestry Sciences, 11 Shuguang Garden Middle Road, Beijing 100097, China"},{"name":"Key Laboratory of Agricultural Sensors, Ministry of Agriculture and Rural Affairs, Beijing 100097, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,2,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Aldhafeeri, T., Tran, M.-K., Vrolyk, R., Pope, M., and Fowler, M. 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