公开(公告)号：US10598682B2

公开(公告)日：2020-03-24

申请号：US15429739

申请日：2017-02-10

Applicant: Board of Trustees of Michigan State University

Inventor： Marcos Dantus ,  Manoochehr M. Koochesfahani ,  Shahram Pouya ,  Anton G. Ryabtsev ,  Alireza Safaripour Tabalvandani

IPC: G01N21/64 ,  G01P5/00 ,  G01P5/26

Abstract: The superposition of Laguerre-Gaussian guided into and scattered by a particle in a rotated fluid allows the detection of the rotational of the fluid. The presented system allows for virtually real-time determination of vorticity characterization in a fluid. The system allows the direct measurements of fluid flow vorticity using a spatially shaped beam with a superposition of Laguerre-Gaussian modes that reports on the rotational Doppler shift from microparticles intersecting the beam focus.