Title :
Highly Sensitive Compact Force Sensor Based on Microfiber Bragg Grating
Author :
Chung, Kit Man ; Liu, Zhengyong ; Lu, Chao ; Tam, Hwa-Yaw
Author_Institution :
Photonics Res. Centre, Hong Kong Polytech. Univ., Kowloon, China
fDate :
4/15/2012 12:00:00 AM
Abstract :
We present and demonstrate a miniature contact force sensor based on a 30-μm diameter microfiber Bragg grating. The microfiber Bragg grating packaged in a conforming elastomer material features an extremely high sensitivity of 1.37 mN and excellent linearity up to a contact force of 0.65 N. The performances were experimentally characterized and meet all the essential specifications as minimally invasive surgery devices for catheters´ applications. The novel force sensor is easy to fabricate and thus potentially low cost.
Keywords :
Bragg gratings; bio-optics; biomedical equipment; catheters; elastomers; fibre optic sensors; force sensors; micro-optics; optical polymers; surgery; catheter; conforming elastomer; contact force sensor; highly sensitive compact force sensor; microfiber Bragg grating; minimally invasive surgery devices; size 30 mum; Fiber gratings; Force; Force sensors; Optical fiber sensors; Sensitivity; Fiber Bragg grating; force sensor; optical fiber sensor;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2012.2187049
