Building a spectrometer with a 3D printer and a webcam.Almost all optics in a single experiment.
E. Jan, F. Zaldivar Escola, N. Mingolo, O.E. Martínez
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Base Information
Volume
V56 - N2 / 2023 Especial: Óptica y Fotónica en Argentina
Reference
51124
DOI
http://dx.doi.org/10.7149/OPA.56.2.51124
Language
Spanish
Keywords
Spectrometer, instrument design, teaching
Abstract
Exposing the student to the challenge of designing an instrument throughout an entire semester course is proposed. The spectrometer has the virtue of involving almost all the concepts that appear in an optics course. The flexibility of the design allows handling different alternatives: improving the resolution by changing the observed order at the expense of loss of intensity, changing the distance and width of the slit, the grating input angle, etc. Learning includes testing the reliability of the instrument and understanding the importance of calibration (a practice that is necessary to acquire in the use of any instrument). To give versatility to the design, the use of a 3D printer has been chosen for this development. A webcam was selected for the detection not only due to its low cost, but mainly because it forcesthe user to look for signal processing mechanisms in order to compensate for distortions such as aberrations, spectral filters, and low dynamic range.
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Los planos se pueden obtener de https://github.com/EmilianoJan/Espectrometro/tree/main/Piezas
Más planos disponibles en https://www.thorlabs.com/
Los programas están disponibles en https://github.com/EmilianoJan/Espectrometro/tree/main/Codigos
https://physics.nist.gov/PhysRefData/Handbook/element_name.htm
https://www.usna.edu/Users/physics/vanhoy/_files/SP425/LabDocs/Ocean%20Optics%202000/S pectraSuite/070131_1347%20R/documentation/Light%20Sources/hg1.pdf
https://www.lamparayluz.es/todo-sobre-iluminacion/que-son-los-grados-kelvin#:~:text=Bombilla%20hal%C3%B3gena%3A%202700%20%2D%203000%20K,del%20d%C 3%ADa%3A%205500%20%2D%207000%20K)