Biaxial 3D-printed inclinometer based on Fiber Bragg Grating technology

Ismail, N. N. and Sa'ad, Muhammad Syamil Mohd and Ismail, Mohammad Faizal and Zaini, Muhammad Khairol AnnuarM. K. A. and Lim, Kheng Seang and Grattan, K. T. V. and Brambilla, G. and Rahman, B. M. A. and Mohamad, H. and Ahmad, Harith (2021) Biaxial 3D-printed inclinometer based on Fiber Bragg Grating technology. IEEE Sensors Journal, 21 (17). pp. 18815-18822. ISSN 1530-437X, DOI

Full text not available from this repository.


A Fiber Bragg Grating (FBG)-based inclinometer has been developed for field use, designed to incorporate biaxial 3-dimensional (3D) printed tilt sensors (in which four FBGs were used). The inclinometer was characterized by examining its response to a wide range of tilts, over the range from 0 degrees to 90 degrees, towards the inclination axes. An excellent linear correlation between the wavelength shifts and the inclination angle (up to the 90 degrees used) was obtained, showing an average sensitivity of 0.01 nm per degree of inclination angle, for each of the FBGs used. In addition to the four FBGs that form the basis of the inclination measurement, a further FBG was included in the design to allow compensation for any temperature changes experienced during the measurements. The device was calibrated over the range from -25 degrees C to 80 degrees C (corresponding to the extremes of cold and hot weather conditions likely to be experienced in-the-field), and a sensitivity to temperature change of 0.011nm/degrees C was achieved, allowing an effective temperature correction to be applied. The data obtained from a full characterization of the performance of the sensor system, carried out in a stable, controlled environment, indicate that this inclinometer yields good sensitivity, making it highly applicable for use in monitoring rapid ground movements and deformations with its compact design allowing its wide use.

Item Type: Article
Funders: Newton Fund Impact Scheme through the Newton-Ungku Omar Fund Partnership[IF022-2020], U.K. Department for Business, Energy and Industrial Strategy, Malaysian Industry-Government Group for High Technology (MIGHT), Universiti Malaya[RK0212019]
Uncontrolled Keywords: Sensors;Fiber gratings;Temperature sensors;Temperature measurement;Strain;Monitoring;Optical fiber sensors;Inclinometer;Biaxial measurements;Fiber Bragg grating-based technology; 3D-printing; ground movements
Subjects: Q Science > QC Physics
R Medicine
Divisions: Faculty of Science
Depositing User: Ms Zaharah Ramly
Date Deposited: 15 Jun 2022 06:54
Last Modified: 15 Jun 2022 06:54

Actions (login required)

View Item View Item