DocumentCode
2965854
Title
Sensitivity enhancement of LC sensors with novel inductor design
Author
Wu, Sung-Yueh ; Hsu, Wensyang
Author_Institution
Dept. of Mech. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fYear
2011
fDate
28-31 Oct. 2011
Firstpage
468
Lastpage
471
Abstract
This paper presents a new LC strain sensor device with an encapsulated serpentine helical inductor. The helical coils of the inductor are formed by serpentine wires to reduce the radial rigidity. Also the inductor is encapsulated by material with high Poisson´s ratio. When an axial deformation is applied to this encapsulated inductor, the cross-sectional area of the helical coils will have more evident change due to low radial rigidity and encapsulating material. Therefore, the change of inductance or LC resonant frequency can be enhanced to provide better sensitivity of the LC strain sensor, which are verified by simulated and measured results.
Keywords
inductors; sensitivity; strain sensors; LC strain sensor device; axial deformation; encapsulated serpentine helical inductor; helical coils; inductor design; sensitivity enhancement; Inductance; Inductors; Materials; Resonant frequency; Sensitivity; Sensors; Strain;
fLanguage
English
Publisher
ieee
Conference_Titel
Sensors, 2011 IEEE
Conference_Location
Limerick
ISSN
1930-0395
Print_ISBN
978-1-4244-9290-9
Type
conf
DOI
10.1109/ICSENS.2011.6126971
Filename
6126971
Link To Document