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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...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Molecular Diversity Preservation International (MDPI)
2009
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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 |
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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 |
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