Black body radiation as a function of frequency and wavelength: an experimentally oriented approach

Abstract

It is well known that the peak of black body radiation depends on the adopted description, whether as a function of frequency or wavelength. This paper is a pedagogical exposition of how to write and estimate Planck's distribution spectrum on two distinct spectrograph scales. We show that the emitted power of the Black Body maximum is unique and does not coincide with the peak measured whether in frequency or wavelength. We then make a generalization with other distribution functions in order to further clarify the apparent issue.

Optimized Passive Defense Measures via IR Imaging

“…Replacing all the second derivatives concerning the pixel, glow capacities and their interrelation as in the Equations (9), (11) and (13), the discriminant…”

“…As far as the radiation effects over human bodies are considered, the IR portion of the electromagnetic spectrum is harmful in general. Fundamentals behind an optimized instrumental designing lie in the properties of emission spectra of black bodies [10,11]. Ideally, an object is termed as a black body when it absorbs all radiation that falls on it.…”

“…Applications of the optimized IR radiation, thermal detectors, and their apt designing techniques fall in the scope of the present research. Instrumentally, thermal detectors can be realized as the devices, which assimilate thermal radiation [11], whereby an increment or decrement in the temperature attributes to a detectable output. The process can fundamentally be viewed as a resulting electrical signal.…”

Procedimiento didáctico para el estudio de la fórmula de Planck en carreras de ingeniería

“…La ley de distribución de energía en el espectro de la radiación del cuerpo negro y la fórmula de Planck, que la sintetiza, es un contenido de enseñanza de la Física, para carreras de ingenierías en las universidades cubanas. Su connotación en el surgimiento de la teoría cuántica ha sido reconocida y abordada en publicaciones científicas precedentes, con marcada intención didáctica (KUHN, 1987;MARTÍNEZ, 1992;STUDART, 2000;MAYORGA, 2002;RIVADULLA, 2002;HERNÁNDEZ, 2005;NAVARRO, 2005;BARACCA, 2009;XAVIER JÚNIOR;CELASCHI, 2012;SAVALL;DOMÈNECH;MARTÍNEZ, 2013;MUÑOZ et. al., 2012).…”

“…Se han elaborado procedimientos para la descripción y explicación de la distribución de energía en el espectro de la radiación del cuerpo negro (MARTÍNEZ, 1992;MARTÍNEZ, 1999;STUDART, 2000;MAYORGA, 2002;RIVADULLA, 2002;NAVARRO, 2002;OTERO, 2005;BARACCA, 2009;SECO, 2012;XAVIER JÚNIOR;CELASCHI, 2012;SAVALL;DOMÈNECH;MARTÍNEZ, 2013;MUÑOZ et. al., 2012), pero procedimientos didácticos para la enseñanza de la fórmula de Planck, han sido menos abordados en publicaciones científicas.…”