Grinias James P, Whitfield Jason T, Guetschow Erik D, Kennedy Robert T
Department of Chemistry, University of Michigan, Ann Arbor, MI 48109.
Department of Chemistry, University of Michigan, Ann Arbor, MI 48109; Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI 48109.
J Chem Educ. 2016 Jul 12;93(7):1316-1319. doi: 10.1021/acs.jchemed.6b00262. Epub 2016 Jun 22.
Many research and teaching labs rely on USB data acquisition devices to collect voltage signals from instrumentation. However, these devices can be cost-prohibitive (especially when large numbers are needed for teaching labs) and require software to be developed for operation. In this article, we describe the development and use of an open-source USB data acquisition device (with 16-bit acquisition resolution) built using simple electronic components and an Arduino Uno that costs under $50. Additionally, open-source software written in Python is included so that data can be acquired using nearly any PC or Mac computer with a simple USB connection. Use of the device was demonstrated for a sophomore-level analytical experiment using GC and a CE-UV separation on an instrument used for research purposes.
许多研究和教学实验室依靠USB数据采集设备从仪器中收集电压信号。然而，这些设备成本高昂（尤其是教学实验室需要大量设备时），并且需要开发软件来操作。在本文中，我们描述了一种开源USB数据采集设备（具有16位采集分辨率）的开发和使用，该设备使用简单的电子元件和成本低于50美元的Arduino Uno构建而成。此外，还包含用Python编写的开源软件，这样几乎任何带有简单USB连接的PC或Mac电脑都可以采集数据。在一个用于研究目的的仪器上，通过气相色谱（GC）和毛细管电泳 - 紫外（CE - UV）分离的大二分析实验展示了该设备的使用情况。
