Patent ID: 11927524
Assignee: SONY GROUP CORPORATION
Field: Measurement (Instruments)
Classification: CPC G  B | IPC B  G

Claim 33:
34. A method for determining microparticle suction, the method comprising:
determining a first time at which microparticles pass a position in a main flow path, wherein the microparticles are sucked from the main flow path into a microparticles suction flow path with a suction force by the microparticles suction flow path;
counting a number of particles that are sucked into the microparticle suction flow path; and
determining a first time period from when the microparticles pass the position in the main flow path to when suction by the microparticle suction flow path should be performed, based on:
a time or distance from when the microparticles have passed the position in the main flow path to when the suction is performed, and
the number of microparticles counted.