A soil moisture estimation method using actively heated fiber Bragg grating sensors

• Published in: Engineering geology Vol. 242; pp. 142 - 149
• Main Authors: Cao, Ding-feng, Shi, Bin, Zhu, Hong-hu, Inyang, Hilary I., Wei, Guang-qing, Duan, Chao-zhe
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 14.08.2018
• Subjects: Carbon fiber heated sensor (CFHS); carbon fibers; clay; coatings; Fiber Bragg grating (FBG); Fiber optic sensing; gravity; monitoring; optical fibers; overweight; sand; silt; Soil moisture; soil water; soil water movement; temperature; Fiber optic sensing; Soil moisture; Carbon fiber heated sensor (CFHS); Fiber Bragg grating (FBG)

Although many methods of soil moisture measurement exist, there remains a lack of soil moisture sensor with small volume, high precision, excellent real-time performance and distributed monitoring capability. In this paper, a fiber Bragg grating (FBG)-based carbon fiber heated sensor (CFHS) that can...