相关实验视频

Updated: Jun 7, 2025

3D Printing and In Situ Surface Modification via Type I Photoinitiated Reversible Addition-Fragmentation Chain Transfer Polymerization

3D Printing and In Situ Surface Modification via Type I Photoinitiated Reversible Addition-Fragmentation Chain Transfer Polymerization

Published on: February 18, 2022

使用光谱相仪数字化3D打印材料的外观

Alina Pranovich^1,2, Morten Rieger Hannemose¹, Janus Nørtoft Jensen^1,3

¹Department of Applied Mathematics and Computer Science, Technical University of Denmark, 2800 Kongens Lyngby, Denmark.

Sensors (Basel, Switzerland)

|November 9, 2024

概括

这项研究引入了一种新的方法,通过测量散射和吸收特性来预测3D打印半透明材料的外观. 该方法使用多个材料样本来准确模拟光相互作用,以便更好地进行视觉预测.

科学领域:

材料科学材料科学材料科学
光学工程是指光学工程.
添加剂制造添加剂制造添加剂制造

背景情况:

对于半透明材料,3D打印部件外观预测的传统方法是不够的.
使用反射率或透射率的现有技术无法准确地捕捉半透明介质中复杂的光相互作用.
对半透明材料来说,精确预测光学特性,如散射和吸收,至关重要.

研究的目的:

开发和验证一种新的方法来描述半透明3D打印材料的散射和吸收特性.
为了能够准确地预测3D打印半透明物体的外观.
为了比较蒙特卡洛模拟与分析辐射转移模型的功效,用于财产估计.

主要方法:

印刷多个薄板的半透明材料与不同的厚度.
使用光谱仪测量不同样品厚度的光相互作用 (反射率和透射率).
将模型与测量数据相匹配,以估计特定材料的散射和吸收系数.
将蒙特卡洛光传输模拟与基于辐射转移理论开发的分析模型进行比较.

主要成果:

拟议的方法成功估计了半透明材料的散射和吸收特性.
蒙特卡洛模拟和分析模型都为财产估计提供了可行的手段.
估计的光学特性使得准确的多光谱相片染比较.

结论:

开发的技术有效地表征半透明材料,用于3D打印中的外观预测.
多重厚度采样和建模的结合为以前具有挑战性的问题提供了强大的解决方案.
这项工作提升了预测和控制3D打印半透明零件视觉外观的能力.

关键词:

添加剂制造添加剂制造添加剂制造模特外观模特外观模特外观数字双胞胎数字双胞胎是什么意思模型验证模型验证辐射转移的辐射转移软防护是软防护的方法之一.频谱光学属性频谱光学属性

更多相关视频

Fabrication and Characterization of Optical Tissue Phantoms Containing Macrostructure

Fabrication and Characterization of Optical Tissue Phantoms Containing Macrostructure

Published on: February 12, 2018

Author Spotlight: Quantitative Characterization of Liquid Photosensitive Bioink Properties for Continuous Digital Light Processing Based Printing

Author Spotlight: Quantitative Characterization of Liquid Photosensitive Bioink Properties for Continuous Digital Light Processing Based Printing

Published on: April 14, 2023

相关概念视频

Spectrophotometry: Introduction

Spectrophotometry: Introduction

Spectrophotometry is the quantitative measurement of the absorption, reflection, diffraction, or transmission of electromagnetic radiation through a material as a function of the intensity and wavelength of the radiation. A spectrophotometer is a device used to measure the change in the radiation intensity caused by its interaction with the material.
The essential components of a spectrophotometer include a source of electromagnetic radiation, a slot for placing a material to be analyzed, and a...

UV–Vis Spectrometers

UV–Vis Spectrometers

The absorbance of UV and visible (UV–visible) radiations is measured using a UV–visible spectrophotometer. Deuterium lamps, which emit UV radiation, and tungsten lamps, which produce radiation in the visible region, are used as light sources in UV–visible spectrophotometers. A monochromator or prism is used for diffraction grating, i.e., to split the incoming radiation into different wavelengths. A system of slits is used to focus the desired wavelength on the sample cell.

Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview

Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview

Ultraviolet–visible (UV–visible or UV–Vis) spectroscopy is an analytical technique that investigates the interaction between matter and UV–Vis light within the electromagnetic spectrum. This method is widely used for its versatility, simplicity, and relatively quick data acquisition, making it valuable for both qualitative and quantitative analysis. When UV–Vis radiation passes through a material, molecules absorb light depending on the energy required for...