A new method for interrogation of serial arrays of dynamic FBG strain sensors

被引：15

作者：

Christmas, SP ^{[1
]}

Jackson, DA ^{[1
]}

机构：

[1] Univ Kent, Appl Opt Grp, Canterbury CT2 7NR, Kent, England

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 2001年 / 12卷 / 07期

关键词：

dynamic strain; low-coherence interferometry; Bragg cells; lasers; smart structures; composite panels;

D O I：

10.1088/0957-0233/12/7/325

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report a new concept for interrogating and multiplexing large numbers of fibre Bragg grating sensors for dynamic measurands. The series combination of an AOTF and a frequency-modulated MZI forms the basis of a system, which allows simultaneous interrogation of eight sensors, and near-simultaneous interrogation of 64. A minimum strain resolution of 2.23 n epsilon Hz(-1/2) at a frequency of 10 kHz was achieved.

引用

页码：897 / 900

页数：4

共 9 条

[1]

CULLINANE W, 1999, SPIE P, V3852, P2

[2]

DAVIS AR, 1997, ANN C OPT FIBR SENS, V16, P616

[3] Ultrasonic hydrophone based on short in-fiber Bragg gratings [J].

Fisher, NE ;

Webb, DJ ;

Pannell, CN ;

Jackson, DA ;

Gavrilov, LR ;

Hand, JW ;

Zhang, L ;

Bennion, I .

APPLIED OPTICS, 1998, 37 (34) :8120-8128

[4]

IDRISS RL, 1998, FIBER OPTIC SENSORS, P159

[5] MULTIPLEXED FIBER BRAGG GRATING STRAIN-SENSOR SYSTEM WITH A FIBER FABRY-PEROT WAVELENGTH FILTER [J].

KERSEY, AD ;

BERKOFF, TA ;

MOREY, WW .

OPTICS LETTERS, 1993, 18 (16) :1370-1372

[6]

KIM HS, 1999, P OFS 13 TH4 1

[7] Highly sensitive dynamic strain measurements by locking lasers to fiber Bragg gratings [J].

Lissak, B ;

Arie, A ;

Tur, M .

OPTICS LETTERS, 1998, 23 (24) :1930-1932

[8]

Sirkis J. S., 1998, FIBER OPTIC SENSORS, P44

[9]

Stremler F., 1982, INTRO COMMUNICATION

← 1 →