PySpectro:一个模块化的3D打印,机器学习辅助的光学设备,用于识别和量化样品
Cristian Grazioli1, Michele Abate1, Nicolò Dossi1
1Sustainable Analytical Instrumentation Laboratory (Sustain Lab), Department of Agrifood, Environmental and Animal Science, University of Udine, via Cotonificio 108, I-33100 Udine, Italy.
概括
本研究介绍了一种模块化的3D打印仪器,用于使用光传感器和LED进行吸收和反射度测量. 该设备可以通过机器学习快速识别和量化样本,为色度检测提供便携式解决方案.
科学领域:
- * 材料科学与工程 * 材料科学与工程
- * 分析化学 分析化学
- * 信息学和机器学习
背景情况:
- *材料,制造和信息学的进步推动了新分析设备的开发.
- * 现有的分析仪器可能很复杂,可移植性有限.
- * 需要易于使用的多功能工具来快速进行化学分析.
研究的目的:
- * 描述一个模块化,3D打印的仪器,用于吸收和反射光谱.
- * 证明该设备能够快速识别和量化样品.
- * 展示机器学习在便携式分析设备中用于数据分析的应用.
主要方法:
- *使用3D打印的底盘,AS7262光传感器,LED和Arduino Nano开发了一个模块化仪器.
- * 实现基于Python的软件用于数据采集,处理和分析.
- * 使用递归回归方法来进行定量分析和机器学习算法来识别样本.
主要成果:
- * 仪器成功地进行了吸收和反射度测量,通过3D打印组件可调节模式.
- * 精确的样本量化达到2.5个数量级,误差通常低于10%.
- * 在同质溶液,基于纸的分析装置 (PAD),食品染料和酸盐测定上已证明有效.
结论:
- * 3D打印的光谱仪器为色度检测提供了一种多功能且具有成本效益的解决方案.
- * 该设备集成硬件和软件,包括机器学习,以进行高效的数据分析.
- *潜在的应用包括现场测试,快速初步分析和教育目的,超越传统的实验室环境.
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相关概念视频
01:18Imaging Biological Samples with Optical Microscopy
Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
01:26Raman Spectroscopy Instrumentation: Overview
A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...