TY - JOUR
T1 - Air pressure measurement of circular thin plate using optical fiber multimode interferometer
AU - Bai, Yufang
AU - Zeng, Jie
AU - Huang, Jiwei
AU - Yan, Zhenfeng
AU - Wu, Yaxing
AU - Li, Kaiyu
AU - Wu, Qiang
AU - Liang, Dakai
N1 - Funding Information: This research was supported by the Fund of Aeronautics Science (Grant Nos.: 20170252004, 20185644006, 20200009023017) and the Key Research and Development Plan of Jiangsu Province-Industrial Foresight and Common Key Technology (Competition Project) (Grant No.: BE2018047).
PY - 2021/9/1
Y1 - 2021/9/1
N2 - In this paper, a simple singlemode-multimode-singlemode (SMS) optical fiber sensor is proposed and investigated for measuring the air pressure of a circular thin plate. Theoretical analysis and experimental demonstration are presents in this paper. The air pressure changes the strain and bending radius of the SMS sensor directly attached to the thin plate, and hence leads to shifts and intensity variation of the transmission spectrum. The relationship between transmission spectrum and pressure has studied by finite element method and optical simulation analysis. Experimental results show that the intensity-pressure and wavelength-pressure are − 0.2718 dB/kPa and −106.7 pm/kPa in a pressure range of 70–130 kPa, respectively. The repeatability of the sensor is good, and the hysteresis rate is low. The key features of the proposed sensor are its simple structure and manufacturing process, low manufacturing cost. It can be used for high-precision pressure measurement.
AB - In this paper, a simple singlemode-multimode-singlemode (SMS) optical fiber sensor is proposed and investigated for measuring the air pressure of a circular thin plate. Theoretical analysis and experimental demonstration are presents in this paper. The air pressure changes the strain and bending radius of the SMS sensor directly attached to the thin plate, and hence leads to shifts and intensity variation of the transmission spectrum. The relationship between transmission spectrum and pressure has studied by finite element method and optical simulation analysis. Experimental results show that the intensity-pressure and wavelength-pressure are − 0.2718 dB/kPa and −106.7 pm/kPa in a pressure range of 70–130 kPa, respectively. The repeatability of the sensor is good, and the hysteresis rate is low. The key features of the proposed sensor are its simple structure and manufacturing process, low manufacturing cost. It can be used for high-precision pressure measurement.
KW - Air pressure measurement
KW - Circular thin plate
KW - Multimode interference
KW - SMS optical fiber sensor
UR - https://www.scopus.com/pages/publications/85108588737
U2 - 10.1016/j.measurement.2021.109784
DO - 10.1016/j.measurement.2021.109784
M3 - Article
AN - SCOPUS:85108588737
SN - 0263-2241
VL - 182
JO - Measurement: Journal of the International Measurement Confederation
JF - Measurement: Journal of the International Measurement Confederation
M1 - 109784
ER -
