Development of Three-dimensional Confocal Micro-PIV System using Chromatic Aberration

在这项研究中，我们提出了一种新的微流三维测量方法，该方法结合了共焦扫描仪和彩色光学器件。在光学设计中，我们成功地产生了色差量为16.5微米，只有与市场上可买到的透镜的组合。然后，尽管在窄波长范围下，也成功地获得了彩色粒子图像。此外，LDLS（激光驱动光源）和三片式彩色相机的引入可以降低噪音并获得清晰的颗粒图像。由于PIV算法的开发和实施无法保证当前波长范围窄的彩色粒子图像的测量精度，因此在硬件和软件方面继续开发和验证。

In this study, we have proposed a new three-dimensional measurement method of micro-flow that combines the confocal scanner and a chromatic optics. In optical design, we succeeded in generating a chromatic aberration amount of 16.5 microns only with a combination of lenses commercially available. Then, although under a narrow wavelength range, the chromatic particle image is successfully obtained. In addition, the introduction of the LDLS (Laser-Driven Light Source) and a three-plate color camera enable noise reduction and acquisition of clear particle images. Since the development and implementation of PIV algorithm to calculate the flow velocity can't guarantee the measurement accuracy with the current chromatic particle image that has narrow wavelength range, the development and validation continues in both hardware and software.