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How to build a low cost spectrometer with Tracker for teaching light spectra

机译：如何使用Tracker构建用于教授光谱的低成本光谱仪

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摘要

Optics is probably one on the most exciting topics in physics. However, it also contains some of the less understood phenomena by students-the light spectra obtained from the diffraction of light. The experimental study of light spectra for studying radiating bodies, usually requests sophisticated and expensive equipment that is not normaly affordable for schools, and only a few teachers know how to measure the wavelength of light in a spectrum. In this work we present a simple and inexpensive setup, with enough accuracy for measuring light spectra to be used both in physics and chemistry classes. We show how freeware software Tracker, commonly used for teaching mechanics, can serve to measure wavelengths with about 2 nm of resolution. Several approaches to the calibration of different setups are also provided, depending on the degree of accuracy demanded.
机译：光学可能是物理学中最令人兴奋的话题之一。但是，它也包含一些学生鲜为人知的现象-从光的衍射获得的光谱。为了研究辐射体而进行的光谱实验研究通常需要复杂且昂贵的设备，而这是学校通常无法负担的，而且只有少数教师知道如何测量光谱中的光的波长。在这项工作中，我们提出了一种简单且便宜的设置，具有足够的精度来测量在物理和化学课程中使用的光谱。我们展示了通常用于教学力学的免费软件Tracker，如何用于测量分辨率约为2 nm的波长。根据所需的精确度，还提供了几种校准不同设置的方法。

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