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SYNCHRONOUS HIGH-SPEED PHOTOGRAPHING METHOD AND DEVICE FOR MICROPARTICLE ROTATION IN LIQUID CYCLONE FIELD
SYNCHRONOUS HIGH-SPEED PHOTOGRAPHING METHOD AND DEVICE FOR MICROPARTICLE ROTATION IN LIQUID CYCLONE FIELD
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机译:旋流场中微粒旋转的同步高速摄影方法及装置
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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.
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