Measurement of the Planck’s constant with an incandescent lamp and an LED as a photodetector
Downloads
- PDF (Español (España)) 893
- EPUB (Español (España)) 75
- VISOR (Español (España))
- MÓVIL (Español (España))
- XML (Español (España)) 72
DOI
https://doi.org/10.25267/Rev_Eureka_ensen_divulg_cienc.2022.v19.i2.2203Info
Authors
- Alejandro del Mazo Vivar (ES) Departamento de Física Aplicada. Universidad de Salamanca. Salamanca. España https://orcid.org/0000-0002-8611-2585
- Santiago Velasco Maíllo (ES) Departamento de Física Aplicada. Universidad de Salamanca. Salamanca. España https://orcid.org/0000-0002-3851-0212
Abstract
En algunos experimentos para la determinación de la constante de Planck se ha hecho uso de fototransistores o de fotodiodos como dispositivos fotodetectores para medir la radiación emitida por una lámpara de incandescencia. El uso de estos componentes electrónicos obliga al empleo de filtros ópticos para seleccionar una estrecha banda del espectro. En este trabajo se presenta un método para medir la constante de Planck, basado igualmente en el uso de una lámpara de incandescencia, que aprovecha las propiedades fotodetectoras del led, su respuesta lineal y su estrecha banda de sensibilidad, lo que evita el empleo de filtros ópticos.
Palabras clave: Constante de Planck, led, lámpara de incandescencia.
Measurement of the Planck’s constant with an incandescent lamp and an LED as a photodetector
Abstract: In some experiments for the determination of Planck's constant, phototransistors or photodiodes have been used as photodetector devices to measure the radiation emitted by an incandescent lamp. Optical filters to select a narrow band of the spectrum are necessary when using these electronic components. This work presents a method to measure the Planck constant, also based on the use of an incandescent lamp, which takes advantage of the photodetector properties of the LED, its linear response and its narrow sensitivity band, which avoids the use of filters.
Keywords: Planck’s constant, LED, incandescent lamp.
Downloads
License
Copyright (c) 2022 Alejandro del Mazo Vivar, Santiago Velasco Maíllo
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Require authors to agree to Copyright Notice as part of the submission process. This allow the / o authors / is non-commercial use of the work, including the right to place it in an open access archive. In addition, Creative Commons is available on flexible copyright licenses (Creative Commons).
Reconocimiento-NoComercial
CC BY-NC
References
Acharya Y., Jayaraman A., Ramachandran S., Subbaraya H. (1995) Compact light-emitting-diode sun photometer for atmospheric optical depth measurements. Applied Optics 34 (7), 1209-1214.
Acharya Y. (2004) Spectral and emission characteristics of LED and its application to LED-based sun-photometry. Optical & Laser Technology 37, 547-550.
Boya L. (2004) The Thermal Radiation Formula of Planck (1900), arXiv:physics/0402064. p. 64.
Brizuela G., Juan A. (1996) Planck’s constant determination using light bulb. American Journal of Physics 64, 819-821.
Crandall R., Delord J. (1983) Minimal apparatus for determination of Planck’s constant. American Journal of Physics 51, 90-91.
IPhO (2005) Planck’s constant in the light of an incandescent lamp. Problema experimental en la XXXVI Olimpiada Internacional de Física, 2005 Salamanca (España) https://www.ipho-new.org/documentations/
Dryzek J., Ruebenbauer K. (1992) Planck’s constant determination from black-body radiation. American Journal of Physics 60, 251-253.
Lewis G. (1926) The Conservation of Photons. Nature 118, 2981, 874-875.
Martín-Delgado M A. (2020) The new SI and the fundamental constants of nature. European Journal of Physics 41, 063003 (31 pp).
NIST (2019) Special Publication 330 The International System of Units (SI). David B. Newell and Eite Tiesinga, editors.
Planck M. (1900) Über eine Verbesserung der Wienschen Spektralgleichung. Verhandlungen der Deutschen Physikalischen Gesellschaft. 2, 202–204. Traducido al inglés en Haar, D. (1967) On an Improvement of Wien’s Equation for the Spectrum, The Old Quantum Theory. Oxford: Pergamon Press. pp. 79–81.
Prasad B. S. N., Mascarenhas R. (1978) A laboratory experiment on the application of Stefan’s law to tungsten filament electric lamps. American Journal of Physics 46 (4), 420-423.
Stachel J. (2001) Einstein 1905: un año milagroso, Barcelona: Crítica. p. 162.
Usman A., Dogari J., Enuwa M., Sambo I. (2009) A tutorial for laboratory determination of Planck's constant from the Planck radiation law. Latin-American Journal of Physics Education 3(2), 246-252.
Zanetti V. (1984) Sun and lamps. American Journal of Physics 52 (12), 1127-1130.