| 摘要 |
PROBLEM TO BE SOLVED: To efficiently stir a liquid even when a state of fine particles becomes different depending on the kind of the liquid, the kind of the fine particles in the liquid, temperatures, etc. SOLUTION: The liquid delivering apparatus comprises a liquid delivering head 50 and an actuator driving part 254. The liquid delivering head 50 includes delivering openings which deliver the liquid, and actuators which give an energy to the liquid delivered from the delivering openings. The actuator driving part 254 stirs the liquid in the liquid delivering head 50 by applying to the actuator of the liquid delivering head 50 a drive signal which is within a range not to bring about the liquid delivering, and whose frequency changes with time. COPYRIGHT: (C)2007,JPO&INPIT |
