bullet Sensors & Transducers Journal

    (ISSN 1726- 5479)



2008 e-Impact Factor

25 Top Downloaded Articles

Journal Subscription 2009/2010

Editorial Calendar 2009

Submit an Article

Editorial Board

Current Issue

Sensors & Transducers journal´s cover

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 2008




Vol. 6, Special Issue, August 2009, pp.117-127





Effect of Organic Vapour on Porous Alumina Based Moisture Sensor in Dry Gases


1,*Saakshi DHANEKAR, 1Tarikul ISLAM, 1S. S. ISLAM,
2Kamalendu SENGUPTA, 2Debdulal SAHA

1Nano-Sensor Research Laboratory, Jamia Millia Islamia (Central University),

New Delhi -110025, India

2Central Glass and Ceramic Research Institute,

Jadavpur, Kolkata-700032, West Bengal, India

*E-mail: saakshi.dhanekar@yahoo.com



Received: 10 July 2009   /Accepted: 31 July 2009   /Published: 10 August 2009


Abstract: A capacitive porous alumina based trace moisture sensor in the range of 50 to 500 ppm (V) was fabricated by low cost sol-gel technique. The cross-sensitivities due to the presence of organic vapours like ethanol, methanol, acetone and benzene were studied. The change in response and recovery time with ppm for moisture sensing was also calculated. The experimental results conclude that moisture sensor is responsive to the polar organic vapours but has almost negligible response to the nonpolar molecules like benzene. Response of the sensor to the organic vapours as compared to the moisture sensitivity is very less. The effect of ambient temperature was found to be negligible.


Keywords: Sol-gel technique, Porous alumina, Traces moisture sensor, Cross-sensitivity, Response time, Recovery time


Acrobat reader logo Click <here> or title of paper to download the full pages article (695 Kb)





1999 - 2009 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

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