REG: Equipment Upgrade for Development of Holographic PIV

堪萨斯州立大学(KSU)机械工程系将为开发全息粒子图像测速仪(HPIV)购买和升级设备。该部门设立了激光流动诊断实验室，其主要目标是开发和应用HPIV。这次升级将使离轴HPIV成为可能，并建立一个合适的数据处理系统。此次升级包括在现有的脉冲激光基础上增加注入种子和改进的横模选项，将其转换为可以记录三维粒子场全息图的高相干激光，将全息重建激光的波长与记录激光的波长匹配，并建立开放体系结构的异质光学数字数据处理系统。HPIV的建立将带来提供瞬时高分辨率三维(3D)速度场数据的能力。它的建立将有助于我们理解、模拟和控制具有基础和技术重要性的湍流和复杂流动。

ABSTRACT The Department of mechanical Engineering at Kansas State University (KSU) will acquire and upgrade equipment for development of Holographic Particle Image Velocimetry (HPIV). A Laser Flow Diagnostics Laboratory, with its primary goal being the development and application of HPIV, has been set up in the Department. The upgrade will enable off-axis HPIV and the establishment of a suitable data processing system. The upgrade consists of adding injection seeding and an improved transverse-mode option to the existing pulsed laser to convert it to a highly coherent laser that can record holograms of three-dimensional particle fields, matching the wavelength of the hologram reconstruction laser to that of the recording laser, and setting up an open-architecture heterogeneous optical-digital data processing system. The establishment of HPIV will bring the capability of providing instantaneous high-resolution three-dimensional (3D) flou velocity field data. Its establishment will contribute to our understanding, modeling and controlling of turbulent and complex flows which are of fundamental and technological importance.