Sigmatic.XYZ

STEAM in Physics

SPECTROMETER

Introduction

This module describes the steps necessary for the construction of a low cost spectrometer.

General objective

Build the PhysicsSensor platform spectrometer.

Specific objectives

  1. Understand the physical foundations of spectrometer operation of the PhysicsSensor platform.

  2. Explain how to use the PhysicsSensor platform spectrometer to measure spectra using mobile devices (cell phone or tablet).

  3. Describe the procedure to follow for the construction of the spectrometer of the PhysicsSensor platform.

Resources

The developed spectrometer is an adaptation of the one proposed in Public Lab of SpectralWorkbrench. Among others, it was added a lens to improve the lighting system over the network diffraction (the entrance slit was located in the object focal plane of this lens), a cell phone lens holder clip (with interior rubberized to avoid scratching the cell phone and prevent the spectrometer from slipping) and the inclination of the grating was recalculated for one of 1000 lines/mm.

Descripción de la imagen


Construction of the spectrometer using 3D printing:

The plans are as follows:
  1. Base del cilp para el espectroscopio (se realiza con impresión 3D)

  2. Porta lente (se realiza con impresión 3D)

  3. Porta red (se realiza con impresión 3D)

  4. Piezas para cortar en cartón con láser (archivo en formato .dxf)

  5. Piezas para cortar en cartón con láser (archivo en formato .pdf)

The plans for the construction of the clip are:
  1. Clip base
  2. Cylinder
  3. Clip joint
  4. Spring Clip
  5. Top clip
  6. Base reinforcement
  7. Top reinforcement