Cargando…

A Capacitive Displacement Sensing Technique for Early Detection of Unbalanced Loads in a Washing Machine

Horizontal axis washing machines are water and energy efficient and becoming popular in the USA. Unlike a vertical axis washer, these do not have an agitator and depend solely on tumbling for the agitation of laundry during the wash cycle. However, due to the constant shifting of laundry during wash...

Descripción completa

Detalles Bibliográficos
Autores principales: Ramasubramanian, Melur K., Tiruthani, Karthik
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2009
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3267187/
https://www.ncbi.nlm.nih.gov/pubmed/22303139
http://dx.doi.org/10.3390/s91209559
_version_ 1782222255622717440
author Ramasubramanian, Melur K.
Tiruthani, Karthik
author_facet Ramasubramanian, Melur K.
Tiruthani, Karthik
author_sort Ramasubramanian, Melur K.
collection PubMed
description Horizontal axis washing machines are water and energy efficient and becoming popular in the USA. Unlike a vertical axis washer, these do not have an agitator and depend solely on tumbling for the agitation of laundry during the wash cycle. However, due to the constant shifting of laundry during washing, the load distribution is often unbalanced during the high speed spin cycle. We present a displacement-based sensing method to detect unbalance early while the spin rate (rpm) is well below the resonance frequency so that corrective actions may be taken prior to the high speed spin cycle. Experimental and analytical characterizations of the sensor configuration are presented. Results show that the displacement sensor is more appropriate than an accelerometer for this application and offer the potential for a simple, reliable, low cost detection of unbalance.
format Online
Article
Text
id pubmed-3267187
institution National Center for Biotechnology Information
language English
publishDate 2009
publisher Molecular Diversity Preservation International (MDPI)
record_format MEDLINE/PubMed
spelling pubmed-32671872012-02-02 A Capacitive Displacement Sensing Technique for Early Detection of Unbalanced Loads in a Washing Machine Ramasubramanian, Melur K. Tiruthani, Karthik Sensors (Basel) Article Horizontal axis washing machines are water and energy efficient and becoming popular in the USA. Unlike a vertical axis washer, these do not have an agitator and depend solely on tumbling for the agitation of laundry during the wash cycle. However, due to the constant shifting of laundry during washing, the load distribution is often unbalanced during the high speed spin cycle. We present a displacement-based sensing method to detect unbalance early while the spin rate (rpm) is well below the resonance frequency so that corrective actions may be taken prior to the high speed spin cycle. Experimental and analytical characterizations of the sensor configuration are presented. Results show that the displacement sensor is more appropriate than an accelerometer for this application and offer the potential for a simple, reliable, low cost detection of unbalance. Molecular Diversity Preservation International (MDPI) 2009-11-30 /pmc/articles/PMC3267187/ /pubmed/22303139 http://dx.doi.org/10.3390/s91209559 Text en © 2009 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Ramasubramanian, Melur K.
Tiruthani, Karthik
A Capacitive Displacement Sensing Technique for Early Detection of Unbalanced Loads in a Washing Machine
title A Capacitive Displacement Sensing Technique for Early Detection of Unbalanced Loads in a Washing Machine
title_full A Capacitive Displacement Sensing Technique for Early Detection of Unbalanced Loads in a Washing Machine
title_fullStr A Capacitive Displacement Sensing Technique for Early Detection of Unbalanced Loads in a Washing Machine
title_full_unstemmed A Capacitive Displacement Sensing Technique for Early Detection of Unbalanced Loads in a Washing Machine
title_short A Capacitive Displacement Sensing Technique for Early Detection of Unbalanced Loads in a Washing Machine
title_sort capacitive displacement sensing technique for early detection of unbalanced loads in a washing machine
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3267187/
https://www.ncbi.nlm.nih.gov/pubmed/22303139
http://dx.doi.org/10.3390/s91209559
work_keys_str_mv AT ramasubramanianmelurk acapacitivedisplacementsensingtechniqueforearlydetectionofunbalancedloadsinawashingmachine
AT tiruthanikarthik acapacitivedisplacementsensingtechniqueforearlydetectionofunbalancedloadsinawashingmachine
AT ramasubramanianmelurk capacitivedisplacementsensingtechniqueforearlydetectionofunbalancedloadsinawashingmachine
AT tiruthanikarthik capacitivedisplacementsensingtechniqueforearlydetectionofunbalancedloadsinawashingmachine