A simple approach to introduce photothermal techniques basic principles for thermal diffusivity measurement

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Título :	A simple approach to introduce photothermal techniques basic principles for thermal diffusivity measurement
Palabras clave :	Photothermal thermal diffusivity heat temperature
Fecha de publicación :	16-ene-2013
Editorial :	Instituto Politécnico Nacional, Latin American Physics Education Network
Descripción :	We report an approach to introduce the students to the field of the photothermal techniques. For this, we describe an experiment about the measurement of the periodical oscillations of the temperature in a body heated with a periodic heat source. These thermal oscillations can be called thermal waves. We show how, by means of the measurement of the phase difference and attenuation of the thermal waves with the penetration distance in the body, we can determine their thermal diffusivity. This is a result in which some of the photothermal techniques are based for applications related with the thermal characterization of materials. In particular we use the technique of pyroelectric detection to show this purpose. DOAJ,DIALNET,LATIN INDEX
URI :	http://www.repositoriodigital.ipn.mx/handle/123456789/10580
Otros identificadores :	Latin American Journal of Physics Education, Vol. 3, No. 2, May 2009 1870-9095 http://hdl.handle.net/123456789/40
Aparece en las colecciones:	Doctorado

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Fichero	Descripción	Tamaño	Formato
LAJPE Mayo 2009 Articulo.pdf		252.39 kB	Adobe PDF	Visualizar/Abrir

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