TY - JOUR
T1 - Strain omnidirectional detection based on circular patch antenna
AU - Song, Guorong
AU - Zhang, Binpeng
AU - Lyu, Yan
AU - Wang, Xuedong
AU - Wu, Bin
AU - He, Cunfu
AU - Lee, Yung Chun
N1 - Funding Information:
The research is financially supported by the National Natural Science Foundation of China (Grant Nos. 51575015 , 11872082 and 11527801 ).
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2020/11/1
Y1 - 2020/11/1
N2 - In this research, a circular patch antenna is proposed for omnidirectional measurement of strains. Firstly, the interaction between the circular patch antenna and the strain is analyzed according to the cavity theory in electromagnetic waves. The resonant frequency is determined by the size of the patch antenna. While a strain is applied, the dimension of the patch antenna changes slightly. Then, the linear relationship between the frequency shift and the strain is obtained. The strain sensor based on circular patch antenna is fabricated to measure the strain in different direction. A microwave wireless detection system is established to detect the magnitude and direction of the structural strain. The experimental result is in good agreement with the strain gauge. It shows that the circular patch antenna is able to detect the structural strain omnidirectional and wireless, which lays a foundation for the further engineering applications.
AB - In this research, a circular patch antenna is proposed for omnidirectional measurement of strains. Firstly, the interaction between the circular patch antenna and the strain is analyzed according to the cavity theory in electromagnetic waves. The resonant frequency is determined by the size of the patch antenna. While a strain is applied, the dimension of the patch antenna changes slightly. Then, the linear relationship between the frequency shift and the strain is obtained. The strain sensor based on circular patch antenna is fabricated to measure the strain in different direction. A microwave wireless detection system is established to detect the magnitude and direction of the structural strain. The experimental result is in good agreement with the strain gauge. It shows that the circular patch antenna is able to detect the structural strain omnidirectional and wireless, which lays a foundation for the further engineering applications.
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U2 - 10.1016/j.sna.2020.112275
DO - 10.1016/j.sna.2020.112275
M3 - Article
AN - SCOPUS:85089940287
SN - 0924-4247
VL - 315
JO - Sensors and Actuators, A: Physical
JF - Sensors and Actuators, A: Physical
M1 - 112275
ER -