bullet Sensors & Transducers Journal

    (ISSN 1726- 5479)


2007 e-Impact Factor

25 Top Downloaded Articles

Journal Subscription 2008

Editorial Calendar 2008

Submit an Article

Editorial Board

Current Issue

Sensors and Transducers journal's cover


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 2007




Vol. 97, Issue 10, October 2008, pp.11-21




A Soft Technique for Fault Detection and Identification in Mechanical Systems


*Sunan HUANG, Kok Kiong TAN, Tong Heng LEE

Department of Electrical and Computer Engineering,

National University of Singapore, S (117573), Singapore

*Tel.: 65-65166770, fax: 65-67795219

E-mail: elehsn@nus.edu.sg



Received: 4 July 2008   /Accepted: 22 October 2008   /Published: 31 October 2008


Abstract: There are two approaches to diagnose a fault for mechanical systems: add hardware sensors, design software algorithms. This paper will focus on software approach to detect and identify a class of faults. The proposed approach uses an estimator built to enable the detection of fault occurrences through comparison of observed states with available sensor information, while other nonlinear estimator is used to identify the fault extracting its signature. Advantages of the proposed fault detection and identification methods are that they are based on the established dynamic model, they do not require acceleration measurements. Experimental study is given to illustrate the effects of the proposed approach.


Keywords: Fault detection, Software, Estimator, Industrial machine


 Acrobat reader logo Click <here> or title of paper to download the full pages article (881 Kb)





1999 - 2008 Copyright , International Frequency Sensor Association (IFSA). All Rights Reserved.

Home - News - Links - Archives - Tools - Standardization - Patents - Marketplace - Projects - Wish List - Subscribe - Search - e-Shop - Membership

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