{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,24]],"date-time":"2025-10-24T08:06:21Z","timestamp":1761293181299,"version":"build-2065373602"},"reference-count":19,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2014,8,7]],"date-time":"2014-08-07T00:00:00Z","timestamp":1407369600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/summer-heart-0930.chufeiyun1688.workers.dev:443\/https\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Laser-machined microcavities for simultaneous measurement of high-temperature and high-pressure are demonstrated. These two cascaded microcavities are an air cavity and a composite cavity including a section of fiber and an air cavity. They are both  placed into a pressure chamber inside a furnace to perform simultaneous pressure and  high-temperature tests. The thermal and pressure coefficients of the short air cavity are ~0.0779 nm\/\u00b0C and ~1.14 nm\/MPa, respectively. The thermal and pressure coefficients of the composite cavity are ~32.3 nm\/\u00b0C and ~24.4 nm\/MPa, respectively. The sensor could be used to separate temperature and pressure due to their different thermal and pressure coefficients. The excellent feature of such a sensor head is that it can withstand high temperatures of up to 400 \u00b0C and achieve precise measurement of high-pressure under high temperature conditions.<\/jats:p>","DOI":"10.3390\/s140814330","type":"journal-article","created":{"date-parts":[[2014,8,7]],"date-time":"2014-08-07T10:23:22Z","timestamp":1407407002000},"page":"14330-14338","update-policy":"https:\/\/summer-heart-0930.chufeiyun1688.workers.dev:443\/https\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Laser-Machined Microcavities for Simultaneous Measurement of High-Temperature and High-Pressure"],"prefix":"10.3390","volume":"14","author":[{"given":"Zengling","family":"Ran","sequence":"first","affiliation":[{"name":"Key Laboratory of Optical Fiber Sensing and Communications (Ministry of Education of China), University of Electronic Science and Technology of China, Chengdu 611731, China"}]},{"given":"Shan","family":"Liu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Optical Fiber Sensing and Communications (Ministry of Education of China), University of Electronic Science and Technology of China, Chengdu 611731, China"}]},{"given":"Qin","family":"Liu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Optical Fiber Sensing and Communications (Ministry of Education of China), University of Electronic Science and Technology of China, Chengdu 611731, China"}]},{"given":"Ya","family":"Huang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Optical Fiber Sensing and Communications (Ministry of Education of China), University of Electronic Science and Technology of China, Chengdu 611731, China"}]},{"given":"Haihong","family":"Bao","sequence":"additional","affiliation":[{"name":"Key Laboratory of Optical Fiber Sensing and Communications (Ministry of Education of China), University of Electronic Science and Technology of China, Chengdu 611731, China"}]},{"given":"Yanjun","family":"Wang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Optical Fiber Sensing and Communications (Ministry of Education of China), University of Electronic Science and Technology of China, Chengdu 611731, China"}]},{"given":"Shucheng","family":"Luo","sequence":"additional","affiliation":[{"name":"Key Laboratory of Optical Fiber Sensing and Communications (Ministry of Education of China), University of Electronic Science and Technology of China, Chengdu 611731, China"}]},{"given":"Huiqin","family":"Yang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Optical Fiber Sensing and Communications (Ministry of Education of China), University of Electronic Science and Technology of China, Chengdu 611731, China"}]},{"given":"Yunjiang","family":"Rao","sequence":"additional","affiliation":[{"name":"Key Laboratory of Optical Fiber Sensing and Communications (Ministry of Education of China), University of Electronic Science and Technology of China, Chengdu 611731, China"}]}],"member":"1968","published-online":{"date-parts":[[2014,8,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1443","DOI":"10.1364\/OL.35.001443","article-title":"Ultrafast femtosecond-laser-induced fiber Bragg gratings in air-hole microstructured fibers for high-temperature pressure sensing","volume":"35","author":"Jewart","year":"2010","journal-title":"Opt. 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