A Rotation Independent In-Place Inclinometer/Tilt Sensor Based on Fiber Bragg Grating

被引：31
作者：
Maheshwari, Muneesh [1 ,2 ]
Yang, Yaowen [1 ]
Upadrashta, Deepesh [1 ]
Chaturvedi, Tanmay [1 ]
机构：
[1] Nanyang Technol Univ, Sch Civil & Environm Engn, Singapore 639798, Singapore
[2] Nanyang Technol Univ, Maritime Inst, Singapore 639798, Singapore
来源：
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 2019年 / 68卷 / 08期
关键词：
Borehole inclinometer; fiber Bragg grating (FBG); fiber sensor; in-place inclinometer; land-slide monitoring; soil displacement/deformation; tilt sensor; TEMPERATURE;
D O I：
10.1109/TIM.2018.2870246
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The inclinometer is one of the most important instruments used in geotechnical engineering. The inclinometer is installed into a borehole to monitor the angle of inclination at regular intervals along the borehole to profile the land/soil displacement. In this paper, a novel design of an in-place inclinometer utilizing fiber Bragg grating (FBG) sensor technology is presented. The presented inclinometer is highly sensitive and has an angle measurement resolution of 0.006 degrees. The conventional inclinometers may be twisted involuntarily due to the force that they experience during installation. This twisting may hamper the measurement accuracy of inclinometers. The performance of the proposed FBG-based in-place inclinometer is independent of twisting; hence, its accuracy remains intact even if it is twisted.
引用
收藏
页码：2943 / 2953
页数：11
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