公开(公告)号：US10598585B2

公开(公告)日：2020-03-24

申请号：US15324552

申请日：2015-06-15

Applicant: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Hualin Wang ,  Yuan Huang ,  Yang Qiu ,  Pengbo Fu ,  Yanhong Zhang ,  Zhishan Bai ,  Qiang Yang ,  Fengqin He

IPC: G01N15/14 ,  H04N5/247 ,  G06T7/292 ,  G01P3/38 ,  G06T7/246 ,  G01N15/10 ,  H04N5/235 ,  G06T7/70

Abstract: A method and a device for synchronous high-speed photographing of microparticle rotation in a liquid cyclone field and for determining the rotation velocity of a microparticle in a liquid cyclone field by using a combination of a synchronous high-speed photographing system and a transparent microparticle containing two centrosymmetrically arranged inner cores having the same diameter. The method comprises: using a transparent microparticle comprising two inner cores having the same diameter and arranged centrosymmetrically as a rotation test particle; acquiring synchronously two groups of two dimensional image series of microparticle motion in a liquid cyclone field using two orthogonally arranged high-speed digital cameras; and reconstructing a three dimensional motion trajectory of the microparticle from the two groups of synchronous image series, and determining a rotation velocity of the microparticle in the cyclone field at the same time.

公开(公告)号：US20180356329A1

公开(公告)日：2018-12-13

申请号：US15324552

申请日：2015-06-15

Applicant: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Hualin Wang ,  Yuan Huang ,  Yang Qiu ,  Pengbo Fu ,  Yanhong Zhang ,  Zhishan Bai ,  Qiang Yang ,  Fengqin He

IPC: G01N15/14 ,  H04N5/247 ,  G06T7/292

CPC classification number: G01N15/14 ,  G01N15/1429 ,  G01N15/1468 ,  G01N2015/1075 ,  G01N2015/1445 ,  G01P3/38 ,  G06T7/246 ,  G06T7/292 ,  G06T7/70 ,  G06T2207/10016 ,  G06T2207/30241 ,  H04N5/2354 ,  H04N5/247

Abstract: A method and a device for synchronous high-speed photographing of microparticle rotation in a liquid cyclone field and for determining the rotation velocity of a microparticle in a liquid cyclone field by using a combination of a synchronous high-speed photographing system and a transparent microparticle containing two centrosymmetrically arranged inner cores having the same diameter. The method comprises: using a transparent microparticle comprising two inner cores having the same diameter and arranged centrosymmetrically as a rotation test particle; acquiring synchronously two groups of two dimensional image series of microparticle motion in a liquid cyclone field using two orthogonally arranged high-speed digital cameras; and reconstructing a three dimensional motion trajectory of the microparticle from the two groups of synchronous image series, and determining a rotation velocity of the microparticle in the cyclone field at the same time.