bullet Sensors & Transducers Journal

    (ISSN 1726- 5479)

205.767

2008 e-Impact Factor

25 Top Downloaded Articles

Best Selling Articles 2012

Journal Subscription 2013

Editorial Calendar 2012

Submit an Article

Editorial Board

Current Issue

Sensors & Transducers book's cover

Sensors & Transducers Journal 2011

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 2011

 

 

 

Vol. 144, No. 9, September 2012, pp. 143-152

 

Bullet

 

Linear Resistivity Response with Relative Humidity of Gd Doped Magnesium Ferrite
 

Jyoti SHAH, Amish G. JOSHI and * R. K. KOTNALA

CSIR-National Physical Laboratory, Council of Scientific and Industrial Research

Dr. K.S. Krishnan Road New Delhi 110012, India

Tel.: 91-11-45608599, fax: 91-11-45609310

* E-mail: rkkotnala@nplindia.org

 

 

Received: 26 June 2012   /Accepted: 21 September 2012   /Published: 28 September 2012

Digital Sensors and Sensor Sysstems

 

Abstract: In present work sintered samples of gadolinium doped magnesium ferrite has yielded a linear response of resistivity for wide range of humidity. From 10 % to 95%RH change, a. c. resistivity of 2 mol% Gd doped sample drops linearly from 3.39107 to 3.2105 Ω-cm at 1 kHz. Gd doping also enhanced porosity. XPS shows enhancement in lateral oxygen peaks with Gd-doping in magnesium ferrite. The response and recovery time observed for 30 - 70%RH range for 2 mol% Gd doped magnesium ferrite are 140 s and 180 s respectively, which are excellent values for bulk humidity sensor material.

 

Keywords: Humidity sensitivity, Resistivity, Porous microstructure, Gd-doped magnesium ferrite

 

 

Buy this article online (it will be send to you in the pdf format by e-mail) or subscribe Sensors & Transducers journal

(12 issues per year plus special issues; 40 % discount for payment IFSA Members):

 

 

Sensors & Transducers journal subscription

450 $ US per year:

 

Buy this article for
14.95 $ US:

 

 
 

 

 
 

Alternatively we accept a money transfer to our bank account. Please contact for details: sales@sensorsportal.com

 

Download <here> the Library Journal Recommendation Form

 

 

Read more about Humidity Sensors

 

 

 

 

 


1999 - 2012 Copyright , International Frequency Sensor Association (IFSA). All Rights Reserved.


Home - News - Links - Archives - Tools - Voltage-to-Frequency Converters - Standardization - Patents - Marketplace - Projects - Wish List - e-Shop - Sensor Jobs - Membership - Videos - Publishing - Site Map - Subscribe - Search

 Members Area -Sensors Portal -Training Courses - S&T Digest - For advertisers - Bookstore - Forums - Polls - Submit Press Release - Submit White Paper - Testimonies - Twitter - Facebook - LinkedIn