A facile LED backlight in situ imaging technique to investigate sub-micron level processing

A facile LED backlight in situ imaging technique to investigate sub-micron level processing
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一种用于研究亚微米级加工的简便 LED 背光原位成像技术

DOI:
10.1016/j.polymertesting.2020.106865
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发表时间:
2020
期刊:
影响因子:
5.1
通讯作者:
Krause, Wendy E.
Krause, Wendy E.
中科院分区:
材料科学2区
文献类型:
--
作者:
Shabani, Elnaz;Rashid, Taslim Ur;Gorga, Russell E.;Krause, Wendy E.

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许多用于研究精细流体结构的实验室实验技术,例如纤维纺丝、微流体流动和静电纺丝,需要具有良好对比度的高质量图像。观察和图像记录的常见过程严重依赖于高技术的光和相机设置,这在某些处理条件下可能难以操作并且也很昂贵。在这里,我们报告了一个简单的技术,使用LED背光成像调查在两个不同的过程中,熔体静电纺丝和无管虹吸纺丝流体分布。该装置包括一个简单的LED光源,面向相机,直接照射到相机透镜。被调查的对象被放置在相机和光源之间。高质量的捕获图像和视频记录可以精确分析熔体电纺情况下的锥体直径和射流固化,以及无管虹吸的拉伸行为曲线。LED背光装置与高分辨率相机是一个有用的工具,研究亚微米尺度的尺寸在纤维纺丝,微流体流动,溶液静电纺丝,接触角测量表面特性分析等。
Many laboratory experimental techniques used for investigating fine fluid structure, such as fiber spinning, microfluidic flow, and electrospinning, require high quality images with good contrast. Common processes of observation and image recording rely heavily on highly technical light and camera setups which can be difficult to operate in some processing conditions and expensive as well. Here, we report a facile technique using LED backlight imaging to investigate ultrathin fluid profile in two different processes, melt electrospinning and tubeless siphoning. The setup comprises of a simple LED light source facing toward the camera, directly shining into the camera lens. The object under investigation was placed between the camera and the light source. The high-quality captured images and video recordings enable the precise analysis of the cone diameter and jet solidification in case of melt electrospinning, and extensional behavior profiles for tubeless siphoning. The LED backlight setup with high resolution camera is a useful tool to investigate sub-micron scale dimensions in fiber spinning, microfluidic flow, solution electrospinning, contact angle measurement for surface properties analysis, etc.
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