YI Hong-gang, GONG Xian-feng, WANG Chang-song. Research on high-sensitivity fiber grating temperature sensors[J]. 2006, (8): 10-11+14. DOI: 10.13873/j.1000-97872006.08.004.
It is usually that the sensitivity of fiber grating sensor is low
that is 0.010 nm/℃
which is not efficient for the accurate measurement of temperature.To solve it
a new theory which improves sensitivity by increasing the difference of the swell factor between the two bottom plates and adjusting the constructions is put forward.The experiment results show that the sensitivity is enhanced greatly