<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1405-5546</journal-id>
<journal-title><![CDATA[Computación y Sistemas]]></journal-title>
<abbrev-journal-title><![CDATA[Comp. y Sist.]]></abbrev-journal-title>
<issn>1405-5546</issn>
<publisher>
<publisher-name><![CDATA[Instituto Politécnico Nacional, Centro de Investigación en Computación]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-55462005000100004</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Control de Calidad de Piezas Cerámicas por Medio de Análisis de Vibraciones y Redes Neuronales Artificiales]]></article-title>
<article-title xml:lang="en"><![CDATA[Quality Control of Ceramic Pieces by Means of Vibration Analysis and Artificial Neuronal Networks]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barrera C.]]></surname>
<given-names><![CDATA[Gerardo]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carreón G.]]></surname>
<given-names><![CDATA[Guillermo]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ruiz M.]]></surname>
<given-names><![CDATA[Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Michoacana Instituto de Investigaciones Metalúrgicas ]]></institution>
<addr-line><![CDATA[Morelia Michoacán]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2005</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2005</year>
</pub-date>
<volume>8</volume>
<numero>3</numero>
<fpage>187</fpage>
<lpage>195</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-55462005000100004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-55462005000100004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-55462005000100004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[El principal objetivo del presente trabajo es encontrar una técnica rápida, sencilla y confiable de diagnostico para detectar fisuras internas o externas de piezas cerámicas utilizando como herramienta de clasificación redes neuronales artificiales. La metodología propuesta esta orientada principalmente a mosaicos cerámicos. Se utiliza como instrumento transductor para detectar las vibraciones mecánicas un acelerómetro del tipo piezoeléctrico. La señal eléctrica (analógica) generada por el transductor, la cuál es directamente proporcional a la magnitud de la vibración, es digitalizada por medio de una tarjeta tipo DAQ. La fase de adquisición de datos, acondicionamiento, procesamiento de la señal, entrenamiento de las redes neuronales, así como la fase de clasificación se lleva a cabo utilizando el lenguaje de programación G El sistema esta diseñado bajo plataforma de Windows® 2000 e Instrumentación Virtual. Para el proceso de clasificación se proponen dos algoritmos: Kohonen y Fuzzy C Means.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[The main purpose of this work is to find a fast and reliable diagnostic technique, for detection of internal or external cracks on ceramic specimens. This technique uses artificial neuronal networks (ANN) as a classification tool. The proposed methodology is mainly oriented to ceramic mosaics. A piezoelectric type accelerometer was used to detect the mechanical vibration and convert it to an electrical signal. The detected signal was digitized using a DAQ card. All the stages: data acquisition, signal conditioning, signal processing and neuronal networks training were carried out using G program language routines. The designed system runs under Windows® 2000 platform and virtual instrumentation. To do the classification process the proposed algorithms are Kohonen and Fuzzy C Means.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Control de calidad]]></kwd>
<kwd lng="es"><![CDATA[Cerámicos]]></kwd>
<kwd lng="es"><![CDATA[Transductores]]></kwd>
<kwd lng="es"><![CDATA[Conversión de señales A/D]]></kwd>
<kwd lng="es"><![CDATA[Transformada Rápida de Fourier]]></kwd>
<kwd lng="es"><![CDATA[Redes Neuronales Artificiales]]></kwd>
<kwd lng="es"><![CDATA[Instrumentación Virtual]]></kwd>
<kwd lng="en"><![CDATA[Quality control]]></kwd>
<kwd lng="en"><![CDATA[ceramics]]></kwd>
<kwd lng="en"><![CDATA[transducers]]></kwd>
<kwd lng="en"><![CDATA[A/D signal conversion]]></kwd>
<kwd lng="en"><![CDATA[Fourier rapid transform]]></kwd>
<kwd lng="en"><![CDATA[artificial neuronal networks]]></kwd>
<kwd lng="en"><![CDATA[virtual instrumentation]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="center"><font face="verdana" size="4"><b>Control de Calidad de Piezas Cer&aacute;micas por Medio de An&aacute;lisis de Vibraciones y Redes Neuronales Artificiales</b></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="4"><b><i>Quality Control of Ceramic Pieces by Means of Vibration Analysis and Artificial Neuronal Networks</i></b></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2"><b>Gerardo Barrera C.<sup>1</sup>, Guillermo Carre&oacute;n G.<sup>1</sup>  y Alberto Ruiz M.<sup>*</sup></b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><i><sup>1 </sup>Instituto de Investigaciones Metal&uacute;rgicas, Universidad Michoacana Apartado. Postal 888, Morelia, Michoac&aacute;n. CP 58000 Tel&eacute;fono 443 322 3500, Ext. 4007, fax: 443 316 8355 e&#150;mails:   <a href="mailto:gbarrera@zeus.umich.mx">gbarrera@zeus.umich.mx</a>,   <a href="mailto:carreon@zeus.umich.mx">carreon@zeus.umich.mx</a> </i>; <i><a href="mailto:lruizq@jupiter.umich.mx">lruizq@jupiter.umich.mx</a> *</i></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">Art&iacute;culo recibido en febrero 02, 2004    <br>   Aceptado en noviembre 11, 2004 </font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>     <p align="justify"><font face="verdana" size="2">El principal objetivo del presente trabajo es encontrar una t&eacute;cnica r&aacute;pida, sencilla y confiable de diagnostico para detectar fisuras internas o externas de piezas cer&aacute;micas utilizando como herramienta de clasificaci&oacute;n redes neuronales artificiales. La metodolog&iacute;a propuesta esta orientada principalmente a mosaicos cer&aacute;micos. Se utiliza como instrumento transductor para detectar las vibraciones mec&aacute;nicas un aceler&oacute;metro del tipo piezoel&eacute;ctrico. La se&ntilde;al el&eacute;ctrica (anal&oacute;gica) generada por el transductor, la cu&aacute;l es directamente proporcional a la magnitud de la vibraci&oacute;n, es digitalizada por medio de una tarjeta tipo DAQ. La fase de adquisici&oacute;n de datos, acondicionamiento, procesamiento de la se&ntilde;al, entrenamiento de las redes neuronales, as&iacute; como la fase de clasificaci&oacute;n se lleva a cabo utilizando el lenguaje de programaci&oacute;n G El sistema esta dise&ntilde;ado bajo plataforma de Windows&reg; 2000 e Instrumentaci&oacute;n Virtual. Para el proceso de clasificaci&oacute;n se proponen dos algoritmos: Kohonen y Fuzzy C Means.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Palabras clave:</b> Control de calidad, Cer&aacute;micos, Transductores, Conversi&oacute;n de se&ntilde;ales A/D, Transformada R&aacute;pida de Fourier, Redes Neuronales Artificiales, Instrumentaci&oacute;n Virtual.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>     <p align="justify"><font face="verdana" size="2">The main purpose of this work is to find a fast and reliable diagnostic technique, for detection of internal or external cracks on ceramic specimens. This technique uses artificial neuronal networks (ANN) as a classification tool. The proposed methodology is mainly oriented to ceramic mosaics. A piezoelectric type accelerometer was used to detect the mechanical vibration and convert it to an electrical signal. The detected signal was digitized using a DAQ card. All the stages: data acquisition, signal conditioning, signal processing and neuronal networks training were carried out using G program language routines. The designed system runs under Windows&reg; 2000 platform and virtual instrumentation. To do the classification process the proposed algorithms are Kohonen and Fuzzy C Means.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Keywords:</b> Quality control, ceramics, transducers, A/D signal conversion, Fourier rapid transform, artificial neuronal networks, virtual instrumentation.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><a href="/pdf/cys/v8n3/v8n3a4.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Agradecimientos</b></font></p>     <p align="justify"><font face="verdana" size="2">Los autores quieren agradecer a las autoridades de la Universidad Michoacana de San Nicol&aacute;s de Hidalgo por todas las facilidades otorgadas para la realizaci&oacute;n de este trabajo de investigaci&oacute;n.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Referencias</b></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">1. <b>A.G. Guy</b>, Fundamentos de Ciencia de Materiales, McGraw&#150;Hill, M&eacute;xico 1980, pp 189&#150;237.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=2038144&pid=S1405-5546200500010000400001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">2. <b>F. Arrufat, U. Novick, M.P.Frigerio, G. Sardelli, </b>Determianci&oacute;n de modulos de Young, Universidad Favaloro, Bs. As. Argentina, Julio 2001, pp 1&#150;8.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=2038145&pid=S1405-5546200500010000400002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">3. "DataEngine V.i. "Data Mining by Intelligent Data Analysis" Manuals and Tutorials. Management Intelligenter Technologien GmbH. <a href="http://www.mitgmbh.de/d/index.htm" target="_blank">http://www.mitgmbh.de</a></font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=2038146&pid=S1405-5546200500010000400003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">4. <b>Granino A. Korn, </b>Neural Networks and Fuzzy Logic Control on Personal Computers and Workstations, MIT Press, 1995, pp 97&#150;135.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=2038147&pid=S1405-5546200500010000400004&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">5. <b>John Durkin, </b>"Expert Systems, Design and Development", Macmillan Publishing, New York, 1994, pp 33&#150;39.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=2038148&pid=S1405-5546200500010000400005&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">6. <b>Timothy Masters, </b>"Practical Neural Networks Recipes in C++", Academic Press, 1993.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=2038149&pid=S1405-5546200500010000400006&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> ]]></body><back>
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