{"title":"基于双球级联单模光纤的温度不敏感u型液位传感器","authors":"Muhua Wang, Zhengrong Tong, Weihua Zhang, Danyang Liu, Yixi Liu, Xue Wang","doi":"10.1007/s00340-025-08478-z","DOIUrl":null,"url":null,"abstract":"<div><p>A temperature-insensitive U-shaped liquid level sensor based on single-mode fiber (SMF) cascaded with double spheres is proposed. Cladding modes are excited by spherical structures. U-shaped liquid level sensors are made by flame-burning the center of the sensing region, cladding modes are further excited due to fiber bending and create more mode interference. To study the sensitivities of the sensors, U-shaped fiber optic liquid level sensors with different bending diameters are simulated and fabricated. As the level rises, there is a significant red shift in the interference dip. The experimental results indicate that the sensitivity of the liquid level is as high as 410.51 pm/mm in the range of 0–30 mm. The sensor exhibits insensitive properties from 20℃ to 70℃. In addition, the sensor has low cost, high sensitivity, and simple structure advantages, which makes it used in petrochemical and other applications.</p></div>","PeriodicalId":474,"journal":{"name":"Applied Physics B","volume":"131 6","pages":""},"PeriodicalIF":2.0000,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Temperature-insensitive U-shaped liquid level sensor based on single-mode fiber cascaded with double spheres\",\"authors\":\"Muhua Wang, Zhengrong Tong, Weihua Zhang, Danyang Liu, Yixi Liu, Xue Wang\",\"doi\":\"10.1007/s00340-025-08478-z\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A temperature-insensitive U-shaped liquid level sensor based on single-mode fiber (SMF) cascaded with double spheres is proposed. Cladding modes are excited by spherical structures. U-shaped liquid level sensors are made by flame-burning the center of the sensing region, cladding modes are further excited due to fiber bending and create more mode interference. To study the sensitivities of the sensors, U-shaped fiber optic liquid level sensors with different bending diameters are simulated and fabricated. As the level rises, there is a significant red shift in the interference dip. The experimental results indicate that the sensitivity of the liquid level is as high as 410.51 pm/mm in the range of 0–30 mm. The sensor exhibits insensitive properties from 20℃ to 70℃. In addition, the sensor has low cost, high sensitivity, and simple structure advantages, which makes it used in petrochemical and other applications.</p></div>\",\"PeriodicalId\":474,\"journal\":{\"name\":\"Applied Physics B\",\"volume\":\"131 6\",\"pages\":\"\"},\"PeriodicalIF\":2.0000,\"publicationDate\":\"2025-05-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applied Physics B\",\"FirstCategoryId\":\"4\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s00340-025-08478-z\",\"RegionNum\":3,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"OPTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Physics B","FirstCategoryId":"4","ListUrlMain":"https://link.springer.com/article/10.1007/s00340-025-08478-z","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"OPTICS","Score":null,"Total":0}
Temperature-insensitive U-shaped liquid level sensor based on single-mode fiber cascaded with double spheres
A temperature-insensitive U-shaped liquid level sensor based on single-mode fiber (SMF) cascaded with double spheres is proposed. Cladding modes are excited by spherical structures. U-shaped liquid level sensors are made by flame-burning the center of the sensing region, cladding modes are further excited due to fiber bending and create more mode interference. To study the sensitivities of the sensors, U-shaped fiber optic liquid level sensors with different bending diameters are simulated and fabricated. As the level rises, there is a significant red shift in the interference dip. The experimental results indicate that the sensitivity of the liquid level is as high as 410.51 pm/mm in the range of 0–30 mm. The sensor exhibits insensitive properties from 20℃ to 70℃. In addition, the sensor has low cost, high sensitivity, and simple structure advantages, which makes it used in petrochemical and other applications.
期刊介绍：
Features publication of experimental and theoretical investigations in applied physics
Offers invited reviews in addition to regular papers
Coverage includes laser physics, linear and nonlinear optics, ultrafast phenomena, photonic devices, optical and laser materials, quantum optics, laser spectroscopy of atoms, molecules and clusters, and more
94% of authors who answered a survey reported that they would definitely publish or probably publish in the journal again
Publishing essential research results in two of the most important areas of applied physics, both Applied Physics sections figure among the top most cited journals in this field.
In addition to regular papers Applied Physics B: Lasers and Optics features invited reviews. Fields of topical interest are covered by feature issues. The journal also includes a rapid communication section for the speedy publication of important and particularly interesting results.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
