Particle image velocimetry timing unit, software, optics & PC

粒子图像测速（PIV）允许在一个平面上的所有点同时获得流动中的全球速度测量。这对于研究非常有用，例如，在流动中漩涡的行为。计算机技术和数字成像技术的快速发展促进了PIV测量技术的发展。为了实现PIV，在气流中注入微小颗粒（如烟雾），并使用强大的激光照射。连续的图像流被捕获使用高速相机和比较使用粒子跟踪算法。最终的结果是整个流场的速度矢量的完整阵列。由于UNB已经拥有适合PIV的激光和高速摄像机（PIV系统中最昂贵的部分），我们要求最终的硬件和软件部分来构建一个功能齐全的PIV系统。从这个工具中获得的理解将允许开发更安静和更高效的车辆，并将用于提高工业过程的效率。

Particle Image Velocimetry (PIV) allows global velocity measurements to be obtained in a flow simultaneously at all points in a plane. This is extremely useful for studying, for example, the behaviour of vortices in a flow. Rapid advances in computing and digital imaging have facilitated the development of the PIV measurement technique. To perform PIV, a flow is seeded with tiny particles (like smoke) and illuminated using a powerful laser. Successive images of the flow are captured using a high speed camera and compared using particle tracking algorithms. The end result is a full array of velocity vectors throughout the flow field. Since UNB already has a laser and high speed camera suitable for PIV (the most expensive parts of a PIV system), we are requesting the final hardware and software pieces to build a fully functional PIV system. The understanding gained from this tool will allow for the development of quieter and more efficient vehicles and will be used to improve the efficiency of industrial processes.