| 摘要 |
PROBLEM TO BE SOLVED: To provide a particle separation device, a particle measuring apparatus, and a particle separation method capable of easily changing a particle classification range.SOLUTION: A particle separation device (20A) of a particle measuring apparatus (10A) includes a fan (4) generating an air current for introducing gas from outside; and a power supply unit (21) supplying electric power for the fan (4) to generate a drive output, and separates particles contained in the introduced gas by an inertial force of the particles. The particle separation device (20A) includes a drive control unit (22) driving the fan (4) in an intermittent drive mode for continuously repeating a first voltage drive state in which a first voltage is applied to the fan (4) from the power supply unit (21) and a second voltage drive state in which a second voltage lower than the first voltage is applied to the fan (4) from the power supply unit (21). |
