A NOVEL OPTO ELECTRO MECHANICAL INTERROGATION SYSTEM FOR MEASURING WAVELENGTH SHIFTS IN FIBER BRAGG GRATING (FBG) SENSORS

被引：0

作者：

Suresha, Krishnappa ^{[2
]}

Yamdagni, Sumeet ^{[1
]}

Mohan, Suresh Chandra ^{[2
]}

Asokan, Sundarrajan ^{[1
]}

机构：

[1] Indian Inst Sci, Dept Instrumentat, Bangalore 560012, Karnataka, India

[2] BDT Coll Engn, Dept Elect & Commun Engn, Davanagere, Karnataka, India

来源：

INTERNATIONAL JOURNAL OF OPTOMECHATRONICS | 2008年 / 2卷 / 01期

关键词：

Fiber Bragg gratings; Mechanical piezo-driven flexure; Optical fiber sensors; Switch mode power supply;

D O I：

10.1080/15599610801987943

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Here, we describe a novel FBG interrogation system in which FBGs are used as both sensing and reference elements. The reference FBGs is bonded to a mechanical flexure system having a linear amplification of 1:3.5, which is actuated using a piezo-actuator by applying a 0-150V ramp. The lengths of the reference gratings decide the maximum strain that can be applied to the reference grating, which in turn decides that strain range which can be interrogated. The main advantages of the present system are the on-line measurement of the wavelength shifts, small size, good sensitivity, multiplexing capability and low cost.

引用

页码：61 / 73

页数：13

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