Wang Hualin,Huang Yuan,Qiu Yang,Fu Pengbo,Zhang Yanhong,Bai Zhishan,Yang Qiang,He Fengqin
申请号：
US201515324552
公开号：
US2018356329(A1)
申请日:
2015.06.15
申请国别(地区):
美国
年份:
2018
代理人:
摘要：
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.
