Particle analyzer and particle analysis method
AssigneeSony Group Corporation
InventorsTomoyuki Umetsu, Shin Masuhara
Life of this patent
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Abstract
There is provided a technology for improving analysis accuracy and sorting accuracy in a technology for analyzing and sorting particles. In the present technology, there is provided a particle analyzer including: a vibration unit that applies vibration to a fluid including a sample flow which contains a particle and a sheath flow which flows so as to include the sample flow to form a droplet in the fluid; a charging unit that applies electric charge to the droplet including the particle; a side stream imaging unit that images a state of the droplet deflected by the electric charge; and a charging control unit that controls a timing of charging on the basis of an image captured by the side stream imaging unit.
Claims13
A particle analyzer comprising:
- a vibration unit that applies vibration to a fluid including a sample flow which contains a particle and a sheath flow which flows so as to include the sample flow;
- a charging unit that applies electric charge to a droplet including the particle, the droplet being formed by the vibration;
- a side stream imaging unit that images a state of the droplet deflected by the electric charge;
- and
- a charging control unit that controls a timing of charging on a basis of an image captured by the side stream imaging unit
- wherein the charging control unit calculates a distance between side streams from an image captured by the side stream imaging unit, and determines a phase range in which the distance is constant.
A particle analysis method comprising:
- a vibration step of applying vibration to a fluid including a sample flow which contains a particle and a sheath flow which flows so as to include the sample flow;
- a charging step of applying electric charge to a droplet including the particle, the droplet being formed by the vibration;
- a side stream imaging step of imaging a state of the droplet deflected by the electric charge;
- and
- a charging control step of controlling a timing of charging on a basis of an image captured in the side stream imaging step
- wherein the charging control unit calculates a distance between side streams from an image captured by the side stream imaging unit, and determines a phase range in which the distance is constant.
Dependencies are inferred from the claim text.