bullet Sensors & Transducers Journal

    (ISSN 1726- 5479)

205.767

2008 e-Impact Factor

25 Top Downloaded Articles

Journal Subscription 2011

Editorial Calendar 2011

Submit an Article

Editorial Board

Current Issue

Sensors & Transducers journal's cover

Sensors & Transducers Journal 2010

Sensors & Transducers Journal 2009

Sensors & Transducers Journal 2008

Sensors & Transducers Journal 2007

2000-2002 S&T e-Digest Contents

2003 S&T e-Digest Contents

2004 S&T e-Digest Contents

2005 S&T e-Digest Contents

2006 S&T e-Digest Contents

 

Best Articles 2010

 

 

 

Vol. 125, Issue 2, February 2011, pp.187-193

 

Bullet

 

Fiber Bragg Grating Sensor for Detection of Nitrate Concentration in Water

 

1A. S. LALASANGI, 1J. F. AKKI, 2K.G. MANOHAR, 3T. SRINIVAS,
4P. RADHAKRISHNAN, 5SANJAY KHER, 6N. S. MEHLA and 1*U. S. RAIKAR

1Department of Physics, Karnatak University, Dharwad-580 003, Karnataka, India

2Laser &Plasma Technology Division, BARC, Mumbai, India.

3Electrical Communication Engineering Dept., Indian Institute of Science,
Bengalooru, Karnataka, India

4International School of Photonics, Cochin University of Science & Technology, Cochin, Kerala, India

5RajaRamanna Center for Advanced Technology, Indore, Madhya Pradesh, India

6Central Scientific Instruments Organization, Chandigarh, India

*Tel.: +91-0836-2772550 (09480480079)

*E-mail: usraykar_kud@yahoomail.co.in

 

 

Received: 18 January 2011   /Accepted: 15 February 2011   /Published: 28 February 2011

 

Abstract: The concentrations of chemical species in drinking water are of great interest. We demonstrated etched fiber Bragg grating (FBG) as a concentration sensor for nitrate by analyzing the Bragg wavelength shift with concentration of chemical solution. The FBG is fabricated by phase mask technique on single mode Ge-B co-doped photosensitive fiber. Sensitivity of FBGs to the surrounding solution concentration can be enhanced by reducing diameter of the cladding with 40 % HF solution. The maximum sensitivity achieved is 1.322 10-3 nm/ppm. The overall shift of Bragg wavelength is of the order of 6.611 10-2 nm for 10 to 50 ppm concentration.

 

Keywords: Concentration sensor, Photosensitive fiber, Fiber Bragg grating, Etching, Nitrate

 

Acrobat reader logo Click <here> or title of paper to download the full pages article (873 Kb)

 

 

Read more about Chemical Sensors

 

 

 

 

 


1999 - 2011 Copyright , International Frequency Sensor Association (IFSA). All Rights Reserved.


Home - News - Links - Archives - Tools - Standardization - Patents - Marketplace - Projects - Wish List - Subscribe - Search - Membership - Submit Press Release - Twitter

 Members Area -Sensors Portal -Training Courses - S&T Digest - For advertisers - Bookstore - Forums - Polls - Sensor Jobs - e-Shop - Site Map - Video